Built 2026-10-19 (19 October 2026)

Kotlas Weather Records (RSM00022887)

Record envelope, standing records and threshold days for Kotlas (RSM00022887), Russia, with 90 years of record.

Key Facts for Kotlas

  • Kotlas (RSM00022887) is a weather station in Russia at 61.23 latitude and 46.72 longitude, 56 m (184 ft) above sea level.
  • The station reports from 1936 to 2025, 90 years of record.
  • 1,464 records set at Kotlas still stand.
  • Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
  • Kotlas set a daily record precipitation of 70.1 mm (2.8 in) on 3 July 2025.

About the Station

  • Location: Russia, 61.23 latitude, 46.72 longitude.
  • Elevation: 56 m (184 ft).
  • Period of record: 1936 to 2025, 90 years.
  • Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

9 days at or beyond a record
Daily record high and record low at Kotlas, with 2026 drawn through them The band shows the record high and record low for each calendar day at Kotlas. The lines show the 2026 daily maximum and minimum. 9 days in 2026 matched or passed a record. Temperatures are in degrees Celsius. -60-40-2002040 JanFebMarAprMayJunJulAugSepOctNovDec
The band shows the record high and record low for each calendar day at Kotlas. The lines show the 2026 daily maximum and minimum. 9 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.
Daily record high and record low at Kotlas, with 2026 drawn through them
MonthHighest record highLowest record low2026 highest maximum2026 lowest minimum
Jan6.4 C (43.5 F)-47.1 C (-52.8 F)6.4 C (43.5 F)-25.2 C (-13.4 F)
Feb5.2 C (41.4 F)-44.9 C (-48.8 F)2.4 C (36.3 F)-28.3 C (-18.9 F)
Mar15.2 C (59.4 F)-36.0 C (-32.8 F)15.2 C (59.4 F)-15.9 C (3.4 F)
Apr26.9 C (80.4 F)-29.9 C (-21.8 F)21.7 C (71.1 F)-10.7 C (12.7 F)
May33.0 C (91.4 F)-12.8 C (9.0 F)29.9 C (85.8 F)-4.0 C (24.8 F)
Jun33.9 C (93.0 F)-3.0 C (26.6 F)25.5 C (77.9 F)0.6 C (33.1 F)
Jul34.5 C (94.1 F)-0.8 C (30.6 F)29.4 C (84.9 F)6.0 C (42.8 F)
Aug35.2 C (95.4 F)-3.6 C (25.5 F)31.1 C (88.0 F)2.1 C (35.8 F)
Sep28.7 C (83.7 F)-7.1 C (19.2 F)n/an/a
Oct21.6 C (70.9 F)-22.5 C (-8.5 F)n/an/a
Nov12.4 C (54.3 F)-36.8 C (-34.2 F)n/an/a
Dec10.1 C (50.2 F)-44.9 C (-48.8 F)n/an/a

Which Years Hold Standing Records

1,464 standing records
Standing records at Kotlas by the year they were set 1,464 records at Kotlas still stand. 1995 holds the most, with 35. 0102030401936: 261937: 101938: 241939: 121940: 161941: 201942: 71943: 41944: 51945: 61946: 131947: 101948: 181949: 141950: 131951: 121952: 121953: 101954: 111955: 191956: 131957: 261958: 91959: 131960: 71961: 121962: 101963: 201964: 31965: 21966: 61967: 151968: 201969: 321970: 101971: 241972: 291973: 281974: 141975: 121976: 161977: 221978: 261979: 291980: 131981: 191982: 281983: 271984: 91985: 71986: 191987: 291988: 141989: 151990: 241991: 201992: 331993: 161994: 91995: 351996: 161997: 181998: 311999: 302000: 162001: 192002: 162003: 162004: 92005: 122006: 212007: 192008: 202009: 162010: 352011: 112012: 102013: 192014: 192015: 212016: 142017: 172018: 72019: 122020: 102021: 132022: 52023: 102024: 132025: 121936194519541963197219811990199920082017
1,464 records at Kotlas still stand. 1995 holds the most, with 35.
Standing records at Kotlas by the year they were set
Year setStanding records
193626
193710
193824
193912
194016
194120
19427
19434
19445
19456
194613
194710
194818
194914
195013
195112
195212
195310
195411
195519
195613
195726
19589
195913
19607
196112
196210
196320
19643
19652
19666
196715
196820
196932
197010
197124
197229
197328
197414
197512
197616
197722
197826
197929
198013
198119
198228
198327
19849
19857
198619
198729
198814
198915
199024
199120
199233
199316
19949
199535
199616
199718
199831
199930
200016
200119
200216
200316
20049
200512
200621
200719
200820
200916
201035
201111
201210
201319
201419
201521
201614
201717
20187
201912
202010
202113
20225
202310
202413
202512

All-Time Record Progression

7 new records
When Kotlas set new all-time records 7 all-time records were set at Kotlas between 29 January 1973 and 9 August 2010. Each dot is a new record. Record low maximum temperatureRecord low minimum temperatureRecord daily precipitationRecord high maximum temperature29 January 1973: Record low maximum temperature -40.2 C (-40.4 F)30 January 1973: Record low minimum temperature -47.1 C (-52.8 F)30 December 1978: Record low maximum temperature -40.4 C (-40.7 F)9 July 1983: Record daily precipitation 78.4 mm (3.1 in)30 July 2010: Record high maximum temperature 34.5 C (94.1 F)6 August 2010: Record high maximum temperature 34.7 C (94.5 F)9 August 2010: Record high maximum temperature 35.2 C (95.4 F)19751980198519901995200020052010
7 all-time records were set at Kotlas between 29 January 1973 and 9 August 2010. Each dot is a new record.
When Kotlas set new all-time records
DateKindDetail
1973-01-29Record low maximum temperatureRecord low maximum temperature -40.2 C (-40.4 F)
1973-01-30Record low minimum temperatureRecord low minimum temperature -47.1 C (-52.8 F)
1978-12-30Record low maximum temperatureRecord low maximum temperature -40.4 C (-40.7 F)
1983-07-09Record daily precipitationRecord daily precipitation 78.4 mm (3.1 in)
2010-07-30Record high maximum temperatureRecord high maximum temperature 34.5 C (94.1 F)
2010-08-06Record high maximum temperatureRecord high maximum temperature 34.7 C (94.5 F)
2010-08-09Record high maximum temperatureRecord high maximum temperature 35.2 C (95.4 F)

Wettest Day of Each Month

Jul: 78.4 mm (3.1 in)
Record daily precipitation for each month at Kotlas The wettest day on record for each calendar month at Kotlas. The most was 78.4 mm (3.1 in) on 9 July 1983. 020406080 Jan: 11.7 mm (0.5 in), 7 January 1988 Jan Feb: 22.6 mm (0.9 in), 17 February 2016 Feb Mar: 17.8 mm (0.7 in), 24 March 1971 Mar Apr: 25.4 mm (1.0 in), 13 April 1993 Apr May: 57.5 mm (2.3 in), 26 May 2009 May Jun: 43.3 mm (1.7 in), 30 June 1997 Jun Jul: 78.4 mm (3.1 in), 9 July 1983 Jul Aug: 48.0 mm (1.9 in), 14 August 1954 Aug Sep: 52.8 mm (2.1 in), 15 September 1952 Sep Oct: 42.0 mm (1.7 in), 6 October 1952 Oct Nov: 26.8 mm (1.1 in), 20 November 1995 Nov Dec: 17.6 mm (0.7 in), 6 December 2008 Dec
The wettest day on record for each calendar month at Kotlas. The most was 78.4 mm (3.1 in) on 9 July 1983.
Record daily precipitation for each month at Kotlas
MonthRecord daily precipitation (mm)Date
Jan11.7 mm (0.5 in)7 January 1988
Feb22.6 mm (0.9 in)17 February 2016
Mar17.8 mm (0.7 in)24 March 1971
Apr25.4 mm (1.0 in)13 April 1993
May57.5 mm (2.3 in)26 May 2009
Jun43.3 mm (1.7 in)30 June 1997
Jul78.4 mm (3.1 in)9 July 1983
Aug48.0 mm (1.9 in)14 August 1954
Sep52.8 mm (2.1 in)15 September 1952
Oct42.0 mm (1.7 in)6 October 1952
Nov26.8 mm (1.1 in)20 November 1995
Dec17.6 mm (0.7 in)6 December 2008

Period of Record Coverage

1936 to 2025
Days with data per year at Kotlas 90 years of record at Kotlas, 1936 to 2025. 7 years have data for under 90 percent of days and are left out of rankings: 2019, 2020, 2021, 2022, 2023, 2024, 2025. 1936: 366 of 366 days1937: 365 of 365 days1938: 365 of 365 days1939: 365 of 365 days1940: 366 of 366 days1941: 365 of 365 days1942: 365 of 365 days1943: 365 of 365 days1944: 366 of 366 days1945: 365 of 365 days1946: 365 of 365 days1947: 365 of 365 days1948: 366 of 366 days1949: 365 of 365 days1950: 365 of 365 days1951: 365 of 365 days1952: 366 of 366 days1953: 365 of 365 days1954: 365 of 365 days1955: 365 of 365 days1956: 366 of 366 days1957: 365 of 365 days1958: 365 of 365 days1959: 365 of 365 days1960: 366 of 366 days1961: 365 of 365 days1962: 365 of 365 days1963: 365 of 365 days1964: 366 of 366 days1965: 365 of 365 days1966: 365 of 365 days1967: 365 of 365 days1968: 366 of 366 days1969: 365 of 365 days1970: 365 of 365 days1971: 365 of 365 days1972: 366 of 366 days1973: 365 of 365 days1974: 365 of 365 days1975: 365 of 365 days1976: 366 of 366 days1977: 365 of 365 days1978: 365 of 365 days1979: 365 of 365 days1980: 366 of 366 days1981: 365 of 365 days1982: 365 of 365 days1983: 365 of 365 days1984: 366 of 366 days1985: 365 of 365 days1986: 365 of 365 days1987: 365 of 365 days1988: 366 of 366 days1989: 365 of 365 days1990: 365 of 365 days1991: 365 of 365 days1992: 366 of 366 days1993: 365 of 365 days1994: 365 of 365 days1995: 365 of 365 days1996: 366 of 366 days1997: 365 of 365 days1998: 365 of 365 days1999: 365 of 365 days2000: 366 of 366 days2001: 365 of 365 days2002: 365 of 365 days2003: 365 of 365 days2004: 366 of 366 days2005: 365 of 365 days2006: 365 of 365 days2007: 365 of 365 days2008: 366 of 366 days2009: 364 of 365 days2010: 365 of 365 days2011: 365 of 365 days2012: 366 of 366 days2013: 365 of 365 days2014: 365 of 365 days2015: 365 of 365 days2016: 366 of 366 days2017: 365 of 365 days2018: 365 of 365 days2019: 320 of 365 days2020: 283 of 366 days2021: 274 of 365 days2022: 272 of 365 days2023: 273 of 365 days2024: 275 of 366 days2025: 187 of 365 days195019651980199520102025
90 years of record at Kotlas, 1936 to 2025. 7 years have data for under 90 percent of days and are left out of rankings: 2019, 2020, 2021, 2022, 2023, 2024, 2025.
Days with data per year at Kotlas
YearDays with dataShare of yearComplete
1936366100%Yes
1937365100%Yes
1938365100%Yes
1939365100%Yes
1940366100%Yes
1941365100%Yes
1942365100%Yes
1943365100%Yes
1944366100%Yes
1945365100%Yes
1946365100%Yes
1947365100%Yes
1948366100%Yes
1949365100%Yes
1950365100%Yes
1951365100%Yes
1952366100%Yes
1953365100%Yes
1954365100%Yes
1955365100%Yes
1956366100%Yes
1957365100%Yes
1958365100%Yes
1959365100%Yes
1960366100%Yes
1961365100%Yes
1962365100%Yes
1963365100%Yes
1964366100%Yes
1965365100%Yes
1966365100%Yes
1967365100%Yes
1968366100%Yes
1969365100%Yes
1970365100%Yes
1971365100%Yes
1972366100%Yes
1973365100%Yes
1974365100%Yes
1975365100%Yes
1976366100%Yes
1977365100%Yes
1978365100%Yes
1979365100%Yes
1980366100%Yes
1981365100%Yes
1982365100%Yes
1983365100%Yes
1984366100%Yes
1985365100%Yes
1986365100%Yes
1987365100%Yes
1988366100%Yes
1989365100%Yes
1990365100%Yes
1991365100%Yes
1992366100%Yes
1993365100%Yes
1994365100%Yes
1995365100%Yes
1996366100%Yes
1997365100%Yes
1998365100%Yes
1999365100%Yes
2000366100%Yes
2001365100%Yes
2002365100%Yes
2003365100%Yes
2004366100%Yes
2005365100%Yes
2006365100%Yes
2007365100%Yes
2008366100%Yes
2009364100%Yes
2010365100%Yes
2011365100%Yes
2012366100%Yes
2013365100%Yes
2014365100%Yes
2015365100%Yes
2016366100%Yes
2017365100%Yes
2018365100%Yes
201932088%No
202028377%No
202127475%No
202227275%No
202327375%No
202427575%No
202518751%No

Latest Records

20
Latest records at Kotlas
DateStationRecordValueBeat old record byOld record stoodSignificance
3 July 2025Kotlas, RUdaily rain70.1 mm (2.8 in)41.3 mm (1.6 in)48 years63 of 100 (Major)
9 June 2025Kotlas, RUdaily high min16.6 C (61.9 F)0.2 C (0.4 F)76 years32 of 100 (Routine)
29 May 2025Kotlas, RUdaily high max29.9 C (85.8 F)1.1 C (2.0 F)59 years27 of 100 (Routine)
27 May 2025Kotlas, RUdaily high max28.7 C (83.7 F)0.9 C (1.6 F)34 years20 of 100 (Routine)
27 May 2025Kotlas, RUdaily high min16.5 C (61.7 F)1.4 C (2.5 F)8 years14 of 100 (Routine)
15 May 2025Kotlas, RUdaily rain26.9 mm (1.1 in)5.5 mm (0.22 in)16 years25 of 100 (Routine)
1 April 2025Kotlas, RUdaily high max13.6 C (56.5 F)1.1 C (2.0 F)16 years15 of 100 (Routine)
31 March 2025Kotlas, RUmonthly high max15.2 C (59.4 F)0.5 C (0.9 F)0 years19 of 100 (Routine)
30 March 2025Kotlas, RUmonthly high max14.7 C (58.5 F)0.2 C (0.4 F)42 years31 of 100 (Routine)
24 March 2025Kotlas, RUdaily high max (Tie)9.5 C (49.1 F)tie11 years3 of 100 (Routine)
12 March 2025Kotlas, RUdaily rain (Tie)5.6 mm (0.22 in)tie34 years4 of 100 (Routine)
9 March 2025Kotlas, RUdaily rain (Tie)5.1 mm (0.20 in)tie59 years6 of 100 (Routine)
3 February 2025Kotlas, RUdaily rain9.9 mm (0.39 in)4.9 mm (0.19 in)45 years20 of 100 (Routine)
1 February 2025Kotlas, RUdaily high max2.4 C (36.3 F)0.8 C (1.4 F)87 years36 of 100 (Notable)
31 January 2025Kotlas, RUdaily high min0.5 C (32.9 F)3.2 C (5.8 F)87 years38 of 100 (Notable)
31 January 2025Kotlas, RUdaily high max3.7 C (38.7 F)2.0 C (3.6 F)9 years13 of 100 (Routine)
30 January 2025Kotlas, RUdaily high min-0.4 C (31.3 F)0.2 C (0.4 F)54 years25 of 100 (Routine)
18 January 2025Kotlas, RUdaily rain9.4 mm (0.37 in)3.4 mm (0.13 in)10 years20 of 100 (Routine)
8 January 2025Kotlas, RUmonthly high max6.4 C (43.5 F)0.9 C (1.6 F)52 years35 of 100 (Notable)
27 December 2024Kotlas, RUdaily high max (Tie)1.4 C (34.5 F)tie65 years6 of 100 (Routine)

Climate Trend

83 complete years, 1936 to 2018
Annual mean temperature at Kotlas as warming stripes, 1936 to 2018 One stripe for each of 83 complete years at Kotlas, 1936 to 2018. Blue stripes are years cooler than the station's own mean of 1.8 C (35.3 F); red stripes are warmer. The coolest year was 1941, at -1.6 C (29.2 F), and the warmest was 2015, at 3.9 C (39.1 F). The strongest colour marks a difference of 3.4 C (6.1 F). 1936: 2.5 C, +0.7 C from the station mean1937: 2.4 C, +0.6 C from the station mean1938: 2.2 C, +0.4 C from the station mean1939: 1.3 C, -0.6 C from the station mean1940: 0.4 C, -1.5 C from the station mean1941: -1.6 C, -3.4 C from the station mean1942: 0.4 C, -1.4 C from the station mean1943: 2.8 C, +1.0 C from the station mean1944: 2.3 C, +0.5 C from the station mean1945: 0.2 C, -1.6 C from the station mean1946: 1.5 C, -0.3 C from the station mean1947: 0.5 C, -1.3 C from the station mean1948: 2.1 C, +0.2 C from the station mean1949: 2.5 C, +0.7 C from the station mean1950: 1.5 C, -0.3 C from the station mean1951: 1.8 C, 0.0 C from the station mean1952: 1.4 C, -0.5 C from the station mean1953: 1.7 C, -0.2 C from the station mean1954: 2.3 C, +0.5 C from the station mean1955: 0.0 C, -1.8 C from the station mean1956: 0.1 C, -1.7 C from the station mean1957: 2.7 C, +0.9 C from the station mean1958: 0.4 C, -1.4 C from the station mean1959: 2.1 C, +0.2 C from the station mean1960: 1.3 C, -0.6 C from the station mean1961: 2.7 C, +0.8 C from the station mean1962: 2.9 C, +1.0 C from the station mean1963: 0.8 C, -1.0 C from the station mean1964: 2.0 C, +0.2 C from the station mean1965: 1.5 C, -0.4 C from the station mean1966: 0.3 C, -1.5 C from the station mean1967: 3.3 C, +1.4 C from the station mean1968: 0.2 C, -1.6 C from the station mean1969: -0.7 C, -2.5 C from the station mean1970: 2.0 C, +0.1 C from the station mean1971: 0.5 C, -1.4 C from the station mean1972: 1.8 C, 0.0 C from the station mean1973: 1.2 C, -0.6 C from the station mean1974: 3.0 C, +1.2 C from the station mean1975: 2.5 C, +0.7 C from the station mean1976: 0.2 C, -1.6 C from the station mean1977: 1.8 C, 0.0 C from the station mean1978: -0.2 C, -2.0 C from the station mean1979: 0.9 C, -0.9 C from the station mean1980: 1.0 C, -0.8 C from the station mean1981: 3.1 C, +1.3 C from the station mean1982: 1.6 C, -0.2 C from the station mean1983: 2.7 C, +0.9 C from the station mean1984: 2.0 C, +0.1 C from the station mean1985: 0.4 C, -1.5 C from the station mean1986: 0.9 C, -0.9 C from the station mean1987: 0.4 C, -1.5 C from the station mean1988: 2.2 C, +0.4 C from the station mean1989: 3.4 C, +1.6 C from the station mean1990: 2.7 C, +0.8 C from the station mean1991: 2.8 C, +0.9 C from the station mean1992: 1.7 C, -0.2 C from the station mean1993: 1.5 C, -0.3 C from the station mean1994: 2.0 C, +0.1 C from the station mean1995: 3.7 C, +1.8 C from the station mean1996: 1.8 C, 0.0 C from the station mean1997: 0.9 C, -0.9 C from the station mean1998: 0.9 C, -0.9 C from the station mean1999: 1.9 C, 0.0 C from the station mean2000: 3.1 C, +1.3 C from the station mean2001: 1.7 C, -0.1 C from the station mean2002: 1.3 C, -0.5 C from the station mean2003: 2.9 C, +1.1 C from the station mean2004: 2.5 C, +0.7 C from the station mean2005: 3.6 C, +1.8 C from the station mean2006: 1.9 C, +0.1 C from the station mean2007: 3.2 C, +1.4 C from the station mean2008: 3.8 C, +2.0 C from the station mean2009: 2.5 C, +0.6 C from the station mean2010: 1.8 C, 0.0 C from the station mean2011: 3.1 C, +1.3 C from the station mean2012: 2.0 C, +0.2 C from the station mean2013: 3.3 C, +1.5 C from the station mean2014: 3.0 C, +1.1 C from the station mean2015: 3.9 C, +2.1 C from the station mean2016: 3.2 C, +1.4 C from the station mean2017: 3.3 C, +1.5 C from the station mean2018: 2.8 C, +0.9 C from the station mean193619401950196019701980199020002010
One stripe for each of 83 complete years at Kotlas, 1936 to 2018. Blue stripes are years cooler than the station's own mean of 1.8 C (35.3 F); red stripes are warmer. The coolest year was 1941, at -1.6 C (29.2 F), and the warmest was 2015, at 3.9 C (39.1 F). The strongest colour marks a difference of 3.4 C (6.1 F).
Annual mean temperature at Kotlas as warming stripes, 1936 to 2018
YearAnnual mean temperatureDifference from the station mean
19362.5 C+0.70 C
19372.4 C+0.58 C
19382.2 C+0.42 C
19391.3 C-0.57 C
19400.4 C-1.46 C
1941-1.6 C-3.38 C
19420.4 C-1.44 C
19432.8 C+1.01 C
19442.3 C+0.46 C
19450.2 C-1.62 C
19461.5 C-0.33 C
19470.5 C-1.31 C
19482.1 C+0.23 C
19492.5 C+0.67 C
19501.5 C-0.32 C
19511.8 C-0.03 C
19521.4 C-0.46 C
19531.7 C-0.15 C
19542.3 C+0.49 C
19550.0 C-1.81 C
19560.1 C-1.70 C
19572.7 C+0.86 C
19580.4 C-1.39 C
19592.1 C+0.25 C
19601.3 C-0.56 C
19612.7 C+0.85 C
19622.9 C+1.05 C
19630.8 C-1.03 C
19642.0 C+0.17 C
19651.5 C-0.35 C
19660.3 C-1.53 C
19673.3 C+1.45 C
19680.2 C-1.61 C
1969-0.7 C-2.54 C
19702.0 C+0.14 C
19710.5 C-1.36 C
19721.8 C+0.02 C
19731.2 C-0.60 C
19743.0 C+1.20 C
19752.5 C+0.70 C
19760.2 C-1.59 C
19771.8 C-0.04 C
1978-0.2 C-2.04 C
19790.9 C-0.90 C
19801.0 C-0.84 C
19813.1 C+1.31 C
19821.6 C-0.23 C
19832.7 C+0.87 C
19842.0 C+0.15 C
19850.4 C-1.46 C
19860.9 C-0.93 C
19870.4 C-1.45 C
19882.2 C+0.39 C
19893.4 C+1.56 C
19902.7 C+0.83 C
19912.8 C+0.93 C
19921.7 C-0.17 C
19931.5 C-0.30 C
19942.0 C+0.14 C
19953.7 C+1.85 C
19961.8 C+0.01 C
19970.9 C-0.93 C
19980.9 C-0.89 C
19991.9 C+0.05 C
20003.1 C+1.28 C
20011.7 C-0.11 C
20021.3 C-0.52 C
20032.9 C+1.09 C
20042.5 C+0.71 C
20053.6 C+1.77 C
20061.9 C+0.12 C
20073.2 C+1.36 C
20083.8 C+1.96 C
20092.5 C+0.65 C
20101.8 C-0.02 C
20113.1 C+1.30 C
20122.0 C+0.19 C
20133.3 C+1.49 C
20143.0 C+1.13 C
20153.9 C+2.11 C
20163.2 C+1.36 C
20173.3 C+1.49 C
20182.8 C+0.93 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.3) per decade over 1936 to 2018. In Fahrenheit: 0.4 F (0.2 to 0.5) per decade. The slope is a straight line fitted to 83 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Kotlas
MeasurePer decade (C)Per decade (F)PeriodComplete yearsReading
Annual mean temperature0.2 C (0.1 to 0.3) per decade0.4 F (0.2 to 0.5) per decade1936 to 201883Rise
Mean daily maximum0.2 C (0.1 to 0.3) per decade0.4 F (0.2 to 0.6) per decade1936 to 201883Rise
Mean daily minimum0.2 C (0.1 to 0.3) per decade0.3 F (0.1 to 0.5) per decade1936 to 201883Rise

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1936 to 2025
Yearly extremes at Kotlas: the record and the median year
MeasureRecordYear of the recordMedian yearYears with a value
Hottest day (TXx)35.2 C (95.4 F)201031.1 C (88.0 F)90
Coldest night (TNn)-47.1 C (-52.8 F)1973-37.2 C (-35.0 F)90
Wettest day (Rx1day)78.4 mm (3.1 in)198330.0 mm (1.2 in)90
Wettest five days (Rx5day)121.4 mm (4.8 in)200051.1 mm (2.0 in)90
Longest dry spell (CDD)45 days195020 days90

Hottest day (TXx)

Hottest day (TXx) at Kotlas by year The hottest day of the year at Kotlas, 1936 to 2025. The record is 35.2 C (95.4 F) in 2010, marked on the chart; the median year is 31.1 C (88.0 F). 2527.53032.53537.519401960198020002020Record: 35.2 C (95.4 F) in 2010
The hottest day of the year at Kotlas, 1936 to 2025. The record is 35.2 C (95.4 F) in 2010, marked on the chart; the median year is 31.1 C (88.0 F).
Hottest day (TXx) at Kotlas by year
YearHottest day (TXx)
193633.0 C (91.4 F)
193731.6 C (88.9 F)
193834.2 C (93.6 F)
193931.2 C (88.2 F)
194032.1 C (89.8 F)
194130.0 C (86.0 F)
194229.1 C (84.4 F)
194330.9 C (87.6 F)
194431.7 C (89.1 F)
194530.6 C (87.1 F)
194631.0 C (87.8 F)
194730.5 C (86.9 F)
194833.2 C (91.8 F)
194929.8 C (85.6 F)
195029.0 C (84.2 F)
195129.4 C (84.9 F)
195231.0 C (87.8 F)
195330.5 C (86.9 F)
195434.4 C (93.9 F)
195529.8 C (85.6 F)
195631.7 C (89.1 F)
195731.3 C (88.3 F)
195830.8 C (87.4 F)
195929.6 C (85.3 F)
196031.8 C (89.2 F)
196131.1 C (88.0 F)
196229.4 C (84.9 F)
196331.1 C (88.0 F)
196432.9 C (91.2 F)
196531.7 C (89.1 F)
196631.9 C (89.4 F)
196730.7 C (87.3 F)
196830.2 C (86.4 F)
196930.4 C (86.7 F)
197031.4 C (88.5 F)
197129.0 C (84.2 F)
197234.4 C (93.9 F)
197331.5 C (88.7 F)
197431.6 C (88.9 F)
197529.7 C (85.5 F)
197628.0 C (82.4 F)
197730.2 C (86.4 F)
197830.5 C (86.9 F)
197929.9 C (85.8 F)
198028.6 C (83.5 F)
198132.0 C (89.6 F)
198232.7 C (90.9 F)
198330.4 C (86.7 F)
198431.8 C (89.2 F)
198530.0 C (86.0 F)
198629.9 C (85.8 F)
198730.3 C (86.5 F)
198832.0 C (89.6 F)
198933.3 C (91.9 F)
199031.8 C (89.2 F)
199133.0 C (91.4 F)
199229.2 C (84.6 F)
199326.6 C (79.9 F)
199427.5 C (81.5 F)
199529.5 C (85.1 F)
199633.7 C (92.7 F)
199729.6 C (85.3 F)
199833.9 C (93.0 F)
199931.9 C (89.4 F)
200032.1 C (89.8 F)
200132.6 C (90.7 F)
200233.0 C (91.4 F)
200331.6 C (88.9 F)
200430.4 C (86.7 F)
200530.2 C (86.4 F)
200633.4 C (92.1 F)
200730.9 C (87.6 F)
200829.9 C (85.8 F)
200932.3 C (90.1 F)
201035.2 C (95.4 F)
201133.2 C (91.8 F)
201230.9 C (87.6 F)
201332.4 C (90.3 F)
201433.0 C (91.4 F)
201530.6 C (87.1 F)
201630.4 C (86.7 F)
201730.8 C (87.4 F)
201831.9 C (89.4 F)
201931.3 C (88.3 F)
202031.0 C (87.8 F)
202132.9 C (91.2 F)
202231.6 C (88.9 F)
202330.3 C (86.5 F)
202432.5 C (90.5 F)
202531.1 C (88.0 F)

Coldest night (TNn)

Coldest night (TNn) at Kotlas by year The coldest night of the year at Kotlas, 1936 to 2025. The record is -47.1 C (-52.8 F) in 1973, marked on the chart; the median year is -37.2 C (-35.0 F). -50-45-40-35-30-2519401960198020002020Record: -47.1 C (-52.8 F) in 1973
The coldest night of the year at Kotlas, 1936 to 2025. The record is -47.1 C (-52.8 F) in 1973, marked on the chart; the median year is -37.2 C (-35.0 F).
Coldest night (TNn) at Kotlas by year
YearColdest night (TNn)
1936-41.0 C (-41.8 F)
1937-33.3 C (-27.9 F)
1938-35.6 C (-32.1 F)
1939-33.3 C (-27.9 F)
1940-39.0 C (-38.2 F)
1941-41.4 C (-42.5 F)
1942-39.9 C (-39.8 F)
1943-41.3 C (-42.3 F)
1944-30.6 C (-23.1 F)
1945-38.4 C (-37.1 F)
1946-44.9 C (-48.8 F)
1947-37.7 C (-35.9 F)
1948-39.0 C (-38.2 F)
1949-35.5 C (-31.9 F)
1950-40.9 C (-41.6 F)
1951-41.0 C (-41.8 F)
1952-33.9 C (-29.0 F)
1953-36.2 C (-33.2 F)
1954-33.5 C (-28.3 F)
1955-38.2 C (-36.8 F)
1956-39.2 C (-38.6 F)
1957-35.2 C (-31.4 F)
1958-39.7 C (-39.5 F)
1959-31.5 C (-24.7 F)
1960-35.6 C (-32.1 F)
1961-31.5 C (-24.7 F)
1962-29.5 C (-21.1 F)
1963-36.0 C (-32.8 F)
1964-37.6 C (-35.7 F)
1965-32.7 C (-26.9 F)
1966-37.7 C (-35.9 F)
1967-37.9 C (-36.2 F)
1968-40.8 C (-41.4 F)
1969-43.6 C (-46.5 F)
1970-39.4 C (-38.9 F)
1971-36.0 C (-32.8 F)
1972-40.7 C (-41.3 F)
1973-47.1 C (-52.8 F)
1974-31.2 C (-24.2 F)
1975-39.4 C (-38.9 F)
1976-42.6 C (-44.7 F)
1977-42.1 C (-43.8 F)
1978-44.9 C (-48.8 F)
1979-46.6 C (-51.9 F)
1980-42.7 C (-44.9 F)
1981-34.6 C (-30.3 F)
1982-44.5 C (-48.1 F)
1983-34.0 C (-29.2 F)
1984-34.5 C (-30.1 F)
1985-41.5 C (-42.7 F)
1986-41.8 C (-43.2 F)
1987-43.5 C (-46.3 F)
1988-34.4 C (-29.9 F)
1989-34.4 C (-29.9 F)
1990-41.8 C (-43.2 F)
1991-39.6 C (-39.3 F)
1992-34.8 C (-30.6 F)
1993-34.6 C (-30.3 F)
1994-34.4 C (-29.9 F)
1995-37.5 C (-35.5 F)
1996-35.7 C (-32.3 F)
1997-36.8 C (-34.2 F)
1998-38.1 C (-36.6 F)
1999-43.9 C (-47.0 F)
2000-34.5 C (-30.1 F)
2001-37.7 C (-35.9 F)
2002-39.9 C (-39.8 F)
2003-37.3 C (-35.1 F)
2004-32.0 C (-25.6 F)
2005-30.2 C (-22.4 F)
2006-40.6 C (-41.1 F)
2007-36.0 C (-32.8 F)
2008-27.8 C (-18.0 F)
2009-37.2 C (-35.0 F)
2010-38.8 C (-37.8 F)
2011-35.9 C (-32.6 F)
2012-36.6 C (-33.9 F)
2013-34.8 C (-30.6 F)
2014-36.8 C (-34.2 F)
2015-35.2 C (-31.4 F)
2016-34.4 C (-29.9 F)
2017-40.0 C (-40.0 F)
2018-29.4 C (-20.9 F)
2019-32.4 C (-26.3 F)
2020-30.3 C (-22.5 F)
2021-36.2 C (-33.2 F)
2022-30.8 C (-23.4 F)
2023-38.3 C (-36.9 F)
2024-37.3 C (-35.1 F)
2025-28.3 C (-18.9 F)

Wettest day (Rx1day)

Wettest day (Rx1day) at Kotlas by year The wettest day of the year at Kotlas, 1936 to 2025. The record is 78.4 mm (3.1 in) in 1983, marked on the chart; the median year is 30.0 mm (1.2 in). 02040608019401960198020002020Record: 78.4 mm (3.1 in) in 1983
The wettest day of the year at Kotlas, 1936 to 2025. The record is 78.4 mm (3.1 in) in 1983, marked on the chart; the median year is 30.0 mm (1.2 in).
Wettest day (Rx1day) at Kotlas by year
YearWettest day (Rx1day)
193620.1 mm (0.8 in)
193745.4 mm (1.8 in)
193837.0 mm (1.5 in)
193944.3 mm (1.7 in)
194036.0 mm (1.4 in)
194126.3 mm (1.0 in)
194220.6 mm (0.8 in)
194330.0 mm (1.2 in)
194427.6 mm (1.1 in)
194543.0 mm (1.7 in)
194642.6 mm (1.7 in)
194735.0 mm (1.4 in)
194830.4 mm (1.2 in)
194918.8 mm (0.7 in)
195027.5 mm (1.1 in)
195137.2 mm (1.5 in)
195252.8 mm (2.1 in)
195328.8 mm (1.1 in)
195448.0 mm (1.9 in)
195534.8 mm (1.4 in)
195641.4 mm (1.6 in)
195722.7 mm (0.9 in)
195818.8 mm (0.7 in)
195921.7 mm (0.9 in)
196019.0 mm (0.7 in)
196137.6 mm (1.5 in)
196237.2 mm (1.5 in)
196325.3 mm (1.0 in)
196439.1 mm (1.5 in)
196525.0 mm (1.0 in)
196635.8 mm (1.4 in)
196723.6 mm (0.9 in)
196828.1 mm (1.1 in)
196917.6 mm (0.7 in)
197028.7 mm (1.1 in)
197126.7 mm (1.1 in)
197231.1 mm (1.2 in)
197336.8 mm (1.4 in)
197437.1 mm (1.5 in)
197511.7 mm (0.5 in)
197638.2 mm (1.5 in)
197729.1 mm (1.1 in)
197821.9 mm (0.9 in)
197943.6 mm (1.7 in)
198025.7 mm (1.0 in)
198126.2 mm (1.0 in)
198218.9 mm (0.7 in)
198378.4 mm (3.1 in)
198430.7 mm (1.2 in)
198528.9 mm (1.1 in)
198614.3 mm (0.6 in)
198735.0 mm (1.4 in)
198825.5 mm (1.0 in)
198938.8 mm (1.5 in)
199024.9 mm (1.0 in)
199125.5 mm (1.0 in)
199239.9 mm (1.6 in)
199327.6 mm (1.1 in)
199437.5 mm (1.5 in)
199535.0 mm (1.4 in)
199629.9 mm (1.2 in)
199743.3 mm (1.7 in)
199841.2 mm (1.6 in)
199920.9 mm (0.8 in)
200049.3 mm (1.9 in)
200122.3 mm (0.9 in)
200221.2 mm (0.8 in)
200320.0 mm (0.8 in)
200473.6 mm (2.9 in)
200539.3 mm (1.5 in)
200619.6 mm (0.8 in)
200732.4 mm (1.3 in)
200822.2 mm (0.9 in)
200957.5 mm (2.3 in)
201026.9 mm (1.1 in)
201121.1 mm (0.8 in)
201251.1 mm (2.0 in)
201330.5 mm (1.2 in)
201432.0 mm (1.3 in)
201515.4 mm (0.6 in)
201632.7 mm (1.3 in)
201726.6 mm (1.0 in)
201826.1 mm (1.0 in)
201926.4 mm (1.0 in)
202032.0 mm (1.3 in)
202136.1 mm (1.4 in)
202222.1 mm (0.9 in)
202323.9 mm (0.9 in)
202435.1 mm (1.4 in)
202570.1 mm (2.8 in)

Wettest five days (Rx5day)

Wettest five days (Rx5day) at Kotlas by year The wettest five days of the year at Kotlas, 1936 to 2025. The record is 121.4 mm (4.8 in) in 2000, marked on the chart; the median year is 51.1 mm (2.0 in). 25507510012519401960198020002020Record: 121.4 mm (4.8 in) in 2000
The wettest five days of the year at Kotlas, 1936 to 2025. The record is 121.4 mm (4.8 in) in 2000, marked on the chart; the median year is 51.1 mm (2.0 in).
Wettest five days (Rx5day) at Kotlas by year
YearWettest five days (Rx5day)
193641.4 mm (1.6 in)
193750.2 mm (2.0 in)
193854.2 mm (2.1 in)
193958.1 mm (2.3 in)
194086.6 mm (3.4 in)
194154.0 mm (2.1 in)
194245.7 mm (1.8 in)
194346.6 mm (1.8 in)
194435.3 mm (1.4 in)
194559.1 mm (2.3 in)
194648.9 mm (1.9 in)
194772.8 mm (2.9 in)
194863.7 mm (2.5 in)
194940.2 mm (1.6 in)
195045.9 mm (1.8 in)
195175.6 mm (3.0 in)
195280.5 mm (3.2 in)
195348.2 mm (1.9 in)
195489.8 mm (3.5 in)
195545.2 mm (1.8 in)
195667.1 mm (2.6 in)
195740.5 mm (1.6 in)
195843.6 mm (1.7 in)
195946.9 mm (1.8 in)
196053.3 mm (2.1 in)
196149.1 mm (1.9 in)
196251.4 mm (2.0 in)
196354.3 mm (2.1 in)
196459.5 mm (2.3 in)
196539.4 mm (1.6 in)
196651.3 mm (2.0 in)
196729.6 mm (1.2 in)
196850.0 mm (2.0 in)
196932.1 mm (1.3 in)
197057.2 mm (2.3 in)
197131.8 mm (1.3 in)
197244.4 mm (1.7 in)
197358.6 mm (2.3 in)
197456.6 mm (2.2 in)
197533.1 mm (1.3 in)
197660.8 mm (2.4 in)
197753.4 mm (2.1 in)
197841.7 mm (1.6 in)
197943.9 mm (1.7 in)
198068.6 mm (2.7 in)
198136.1 mm (1.4 in)
198233.2 mm (1.3 in)
198379.9 mm (3.1 in)
198450.6 mm (2.0 in)
198556.5 mm (2.2 in)
198632.9 mm (1.3 in)
198752.6 mm (2.1 in)
198844.4 mm (1.7 in)
198960.3 mm (2.4 in)
199057.5 mm (2.3 in)
199140.9 mm (1.6 in)
199260.4 mm (2.4 in)
199360.9 mm (2.4 in)
199458.6 mm (2.3 in)
199554.8 mm (2.2 in)
199647.0 mm (1.9 in)
199750.9 mm (2.0 in)
199870.0 mm (2.8 in)
199934.3 mm (1.4 in)
2000121.4 mm (4.8 in)
200138.1 mm (1.5 in)
200234.5 mm (1.4 in)
200339.4 mm (1.6 in)
2004119.3 mm (4.7 in)
200558.0 mm (2.3 in)
200625.0 mm (1.0 in)
200748.7 mm (1.9 in)
200849.0 mm (1.9 in)
200966.5 mm (2.6 in)
201070.5 mm (2.8 in)
201146.7 mm (1.8 in)
201279.7 mm (3.1 in)
201341.9 mm (1.6 in)
201448.0 mm (1.9 in)
201531.8 mm (1.3 in)
201672.4 mm (2.9 in)
201757.7 mm (2.3 in)
201841.6 mm (1.6 in)
201959.2 mm (2.3 in)
202055.9 mm (2.2 in)
202152.9 mm (2.1 in)
202239.0 mm (1.5 in)
202352.4 mm (2.1 in)
202443.5 mm (1.7 in)
202576.1 mm (3.0 in)

Longest dry spell (CDD)

Longest dry spell (CDD) at Kotlas by year The longest dry spell of the year at Kotlas, 1936 to 2025. The record is 45 days in 1950, marked on the chart; the median year is 20 days. 0102030405019401960198020002020Record: 45 days in 1950
The longest dry spell of the year at Kotlas, 1936 to 2025. The record is 45 days in 1950, marked on the chart; the median year is 20 days.
Longest dry spell (CDD) at Kotlas by year
YearLongest dry spell (CDD)
193630 days
193730 days
193824 days
193926 days
194035 days
194120 days
194234 days
194326 days
194428 days
194534 days
194637 days
194717 days
194814 days
194934 days
195045 days
195137 days
195213 days
195321 days
195429 days
195517 days
195617 days
195728 days
195822 days
195931 days
196023 days
196120 days
196223 days
196320 days
196411 days
196522 days
196622 days
196717 days
196814 days
196929 days
197018 days
197124 days
197216 days
197315 days
197420 days
197518 days
197618 days
197713 days
197822 days
197926 days
198015 days
198117 days
198214 days
198313 days
198427 days
198521 days
198618 days
198733 days
198820 days
198917 days
199015 days
199121 days
199211 days
199317 days
199415 days
199519 days
199643 days
199725 days
199823 days
199915 days
200017 days
200117 days
200231 days
200333 days
200417 days
200534 days
200614 days
200717 days
200823 days
200927 days
201031 days
201128 days
201227 days
201315 days
201414 days
201519 days
201633 days
201715 days
201817 days
201918 days
202012 days
202110 days
202220 days
202313 days
20249 days
20257 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

83 years with a frost

Across 83 years with a frost, the median last spring frost at Kotlas falls on 30 May and the median first autumn frost on 7 September, which leaves a median of 101 days between them.

In 1989 to 2018 the median growing season was 97 days. That is 15 days fewer than in 1936 to 1965.

Fitted over all years, the growing season changes by -1.7 days per decade at this station.

Frost dates and growing season at Kotlas
MeasureMedian, all yearsEarliest period (1936 to 1965)Recent period (1989 to 2018)Recent against earliestFitted trend
Last spring frost30 May27 May30 May3 days later+0.3 days per decade
First autumn frost7 September18 September4 September14 days earlier-1.4 days per decade
Growing days101 days112 days97 days15 days fewer-1.7 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

84 years, 1936 to 2019

A day with at least 29.8 mm (1.2 in) of rain is expected about once in 2 years. A day with at least 69.4 mm (2.7 in) of rain is expected about once in 100 years.

Rainfall return levels at Kotlas: the daily rain expected about once in a given number of years
Expected about once inA day with at leastNote
2 years29.8 mm (1.2 in)
5 years40.0 mm (1.6 in)
10 years46.9 mm (1.8 in)
25 years55.8 mm (2.2 in)
50 years62.6 mm (2.5 in)
100 years69.4 mm (2.7 in)Longer than the 84 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 84 years of values from 1936 to 2019.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 78.4 mm (3.1 in) in 1983; 73.6 mm (2.9 in) in 2004; 57.5 mm (2.3 in) in 2009.

Station Changes

1 suspected

One change was suspected in the annual mean temperature of Kotlas, at 1970. Each is measured against neighbouring stations.

  • Relative to 5 neighbouring stations, the station's annual mean temperature from 1970 ran 0.3 C (0.6 F) lower than in the years before (likely change).
Suspected changes in the annual mean temperature at Kotlas, against neighbouring stations
YearShift (C)Shift (F)StrengthNeighbours
1970-0.3-0.6likely5

Possible change at the station (a move, a new instrument or a new site); the record is kept as measured. A "likely" change has a larger test statistic than a "possible" one. Neither says why the station differs from its neighbours. How changes are found, and the largest ones.

Climate Twins

2004 to 2018 against 1961 to 1990

Over 2004 to 2018, Kotlas had a mean temperature of 2.9 C (37.3 F) and 604.1 mm (23.8 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Vologda (Russia, 431 km away), Babaevo (Russia, 629 km away) and Vetluga (Russia, 374 km away).

Climate twins of Kotlas: stations whose 1961 to 1990 climate is closest to its 2004 to 2018 climate
Twin stationCountryDistance awayMean temperature, 1961-1990Rain a year, 1961-1990Climate difference
VologdaRussia431 km (268 mi)2.8 C (37.0 F)567.7 mm (22.4 in)0.53
BabaevoRussia629 km (391 mi)2.9 C (37.3 F)610.9 mm (24.1 in)0.67
VetlugaRussia374 km (232 mi)3.1 C (37.6 F)657.1 mm (25.9 in)0.72

Twins are stations, not cities. A twin is one of the three stations at least 100 km away whose earlier climate is closest to this station's recent one, so a close match does not mean the two places look alike in other ways. A station move or a gap in a record can change that station's averages. The list describes past climate; it is not a forecast and does not say what caused any change. How twins are found, and a search for any station.

Download the Data

  • Data for Kotlas standing records by year: CSV or JSON. Field meanings are on the data page.
  • Data for Kotlas threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of . Last revised (2025-12-31).