Ostrov Kotelnyj Weather Records (RSM00021432)
Record envelope, standing records and threshold days for Ostrov Kotelnyj (RSM00021432), Russia, with 91 years of record.
Key Facts for Ostrov Kotelnyj
- Ostrov Kotelnyj (RSM00021432) is a weather station in Russia at 76.00 latitude and 137.87 longitude, 12 m (39 ft) above sea level.
- The station reports from 1936 to 2026, 91 years of record.
- 1,464 records set at Ostrov Kotelnyj still stand.
- Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
- Ostrov Kotelnyj set a daily record high minimum temperature of 4.1 C (39.4 F) on 4 September 2026 (provisional).
Provisional Records
Records set in the last 60 days are provisional until they clear the revision window.
About the Station
- Location: Russia, 76.00 latitude, 137.87 longitude.
- Elevation: 12 m (39 ft).
- Period of record: 1936 to 2026, 91 years.
- Eligible elements: tmax, tmin, prcp.
Daily Record Envelope and 2026
5 days at or beyond a record| Month | Highest record high | Lowest record low | 2026 highest maximum | 2026 lowest minimum |
|---|---|---|---|---|
| Jan | -7.2 C (19.0 F) | -44.9 C (-48.8 F) | -8.0 C (17.6 F) | -38.5 C (-37.3 F) |
| Feb | -3.3 C (26.1 F) | -49.9 C (-57.8 F) | -12.9 C (8.8 F) | -36.4 C (-33.5 F) |
| Mar | -4.8 C (23.4 F) | -46.1 C (-51.0 F) | -12.3 C (9.9 F) | -35.1 C (-31.2 F) |
| Apr | 1.2 C (34.2 F) | -46.2 C (-51.2 F) | -10.0 C (14.0 F) | -28.3 C (-18.9 F) |
| May | 6.3 C (43.3 F) | -28.6 C (-19.5 F) | 0.5 C (32.9 F) | -20.2 C (-4.4 F) |
| Jun | 21.4 C (70.5 F) | -14.9 C (5.2 F) | 5.9 C (42.6 F) | -7.6 C (18.3 F) |
| Jul | 25.1 C (77.2 F) | -6.0 C (21.2 F) | 16.6 C (61.9 F) | -3.2 C (26.2 F) |
| Aug | 22.0 C (71.6 F) | -9.2 C (15.4 F) | 18.8 C (65.8 F) | -5.3 C (22.5 F) |
| Sep | 13.6 C (56.5 F) | -18.6 C (-1.5 F) | 8.4 C (47.1 F) | -11.8 C (10.8 F) |
| Oct | 2.4 C (36.3 F) | -40.2 C (-40.4 F) | -0.1 C (31.8 F) | -10.8 C (12.6 F) |
| Nov | -1.7 C (28.9 F) | -40.2 C (-40.4 F) | n/a | n/a |
| Dec | -3.1 C (26.4 F) | -45.0 C (-49.0 F) | n/a | n/a |
Which Years Hold Standing Records
1,464 standing records| Year set | Standing records |
|---|---|
| 1936 | 13 |
| 1937 | 12 |
| 1938 | 21 |
| 1939 | 16 |
| 1940 | 8 |
| 1941 | 16 |
| 1942 | 7 |
| 1943 | 22 |
| 1944 | 10 |
| 1945 | 9 |
| 1946 | 7 |
| 1947 | 14 |
| 1948 | 33 |
| 1949 | 19 |
| 1950 | 8 |
| 1951 | 18 |
| 1952 | 9 |
| 1953 | 13 |
| 1954 | 16 |
| 1955 | 10 |
| 1956 | 29 |
| 1957 | 16 |
| 1958 | 13 |
| 1959 | 9 |
| 1960 | 12 |
| 1961 | 14 |
| 1962 | 47 |
| 1963 | 33 |
| 1964 | 19 |
| 1965 | 22 |
| 1966 | 40 |
| 1967 | 39 |
| 1968 | 6 |
| 1969 | 13 |
| 1970 | 19 |
| 1971 | 23 |
| 1972 | 14 |
| 1973 | 11 |
| 1974 | 11 |
| 1975 | 4 |
| 1976 | 14 |
| 1977 | 17 |
| 1978 | 8 |
| 1979 | 37 |
| 1980 | 10 |
| 1981 | 7 |
| 1982 | 8 |
| 1983 | 10 |
| 1984 | 16 |
| 1985 | 4 |
| 1986 | 18 |
| 1987 | 14 |
| 1988 | 11 |
| 1989 | 12 |
| 1990 | 22 |
| 1991 | 16 |
| 1992 | 25 |
| 1993 | 30 |
| 1994 | 25 |
| 1995 | 21 |
| 1996 | 33 |
| 1997 | 17 |
| 1998 | 7 |
| 1999 | 10 |
| 2000 | 7 |
| 2001 | 18 |
| 2002 | 22 |
| 2003 | 4 |
| 2004 | 6 |
| 2005 | 8 |
| 2006 | 8 |
| 2007 | 23 |
| 2008 | 11 |
| 2009 | 6 |
| 2010 | 10 |
| 2011 | 13 |
| 2012 | 24 |
| 2013 | 4 |
| 2014 | 6 |
| 2015 | 3 |
| 2016 | 17 |
| 2017 | 26 |
| 2018 | 43 |
| 2019 | 24 |
| 2020 | 53 |
| 2021 | 8 |
| 2022 | 7 |
| 2023 | 10 |
| 2024 | 9 |
| 2025 | 16 |
| 2026 | 11 |
All-Time Record Progression
6 new records| Date | Kind | Detail |
|---|---|---|
| 1977-07-19 | Record daily precipitation | Record daily precipitation 26.3 mm (1.0 in) |
| 1980-07-25 | Record daily precipitation | Record daily precipitation 39.0 mm (1.5 in) |
| 1991-07-11 | Record high maximum temperature | Record high maximum temperature 25.1 C (77.2 F) |
| 2002-02-15 | Record low maximum temperature | Record low maximum temperature -42.4 C (-44.3 F) |
| 2002-02-15 | Record low minimum temperature | Record low minimum temperature -49.9 C (-57.8 F) |
| 2002-02-16 | Record low maximum temperature | Record low maximum temperature -44.6 C (-48.3 F) |
Wettest Day of Each Month
Jul: 39.0 mm (1.5 in)| Month | Record daily precipitation (mm) | Date |
|---|---|---|
| Jan | 7.6 mm (0.30 in) | 13 January 1957 |
| Feb | 6.7 mm (0.26 in) | 23 February 1985 |
| Mar | 6.9 mm (0.27 in) | 17 March 1964 |
| Apr | 8.8 mm (0.35 in) | 19 April 1967 |
| May | 7.4 mm (0.29 in) | 30 May 1939 |
| Jun | 18.5 mm (0.7 in) | 20 June 1999 |
| Jul | 39.0 mm (1.5 in) | 25 July 1980 |
| Aug | 26.9 mm (1.1 in) | 7 August 2024 |
| Sep | 15.6 mm (0.6 in) | 13 September 1953 |
| Oct | 11.9 mm (0.5 in) | 1 October 2020 |
| Nov | 5.6 mm (0.22 in) | 14 November 1961 |
| Dec | 8.4 mm (0.33 in) | 23 December 2012 |
Period of Record Coverage
1936 to 2026| Year | Days with data | Share of year | Complete |
|---|---|---|---|
| 1936 | 283 | 77% | No |
| 1937 | 321 | 88% | No |
| 1938 | 364 | 100% | Yes |
| 1939 | 290 | 79% | No |
| 1940 | 366 | 100% | Yes |
| 1941 | 365 | 100% | Yes |
| 1942 | 365 | 100% | Yes |
| 1943 | 365 | 100% | Yes |
| 1944 | 366 | 100% | Yes |
| 1945 | 365 | 100% | Yes |
| 1946 | 365 | 100% | Yes |
| 1947 | 365 | 100% | Yes |
| 1948 | 366 | 100% | Yes |
| 1949 | 365 | 100% | Yes |
| 1950 | 365 | 100% | Yes |
| 1951 | 365 | 100% | Yes |
| 1952 | 366 | 100% | Yes |
| 1953 | 365 | 100% | Yes |
| 1954 | 365 | 100% | Yes |
| 1955 | 365 | 100% | Yes |
| 1956 | 366 | 100% | Yes |
| 1957 | 365 | 100% | Yes |
| 1958 | 365 | 100% | Yes |
| 1959 | 365 | 100% | Yes |
| 1960 | 366 | 100% | Yes |
| 1961 | 365 | 100% | Yes |
| 1962 | 365 | 100% | Yes |
| 1963 | 365 | 100% | Yes |
| 1964 | 366 | 100% | Yes |
| 1965 | 365 | 100% | Yes |
| 1966 | 362 | 99% | Yes |
| 1967 | 364 | 100% | Yes |
| 1968 | 362 | 99% | Yes |
| 1969 | 364 | 100% | Yes |
| 1970 | 364 | 100% | Yes |
| 1971 | 363 | 99% | Yes |
| 1972 | 366 | 100% | Yes |
| 1973 | 363 | 99% | Yes |
| 1974 | 364 | 100% | Yes |
| 1975 | 359 | 98% | Yes |
| 1976 | 329 | 90% | No |
| 1977 | 365 | 100% | Yes |
| 1978 | 364 | 100% | Yes |
| 1979 | 365 | 100% | Yes |
| 1980 | 366 | 100% | Yes |
| 1981 | 365 | 100% | Yes |
| 1982 | 365 | 100% | Yes |
| 1983 | 365 | 100% | Yes |
| 1984 | 366 | 100% | Yes |
| 1985 | 365 | 100% | Yes |
| 1986 | 365 | 100% | Yes |
| 1987 | 365 | 100% | Yes |
| 1988 | 366 | 100% | Yes |
| 1989 | 365 | 100% | Yes |
| 1990 | 365 | 100% | Yes |
| 1991 | 365 | 100% | Yes |
| 1992 | 366 | 100% | Yes |
| 1993 | 365 | 100% | Yes |
| 1994 | 365 | 100% | Yes |
| 1995 | 365 | 100% | Yes |
| 1996 | 366 | 100% | Yes |
| 1997 | 365 | 100% | Yes |
| 1998 | 363 | 99% | Yes |
| 1999 | 365 | 100% | Yes |
| 2000 | 366 | 100% | Yes |
| 2001 | 326 | 89% | No |
| 2002 | 365 | 100% | Yes |
| 2003 | 353 | 97% | Yes |
| 2004 | 366 | 100% | Yes |
| 2005 | 365 | 100% | Yes |
| 2006 | 365 | 100% | Yes |
| 2007 | 365 | 100% | Yes |
| 2008 | 366 | 100% | Yes |
| 2009 | 365 | 100% | Yes |
| 2010 | 365 | 100% | Yes |
| 2011 | 365 | 100% | Yes |
| 2012 | 366 | 100% | Yes |
| 2013 | 365 | 100% | Yes |
| 2014 | 306 | 84% | No |
| 2015 | 365 | 100% | Yes |
| 2016 | 366 | 100% | Yes |
| 2017 | 365 | 100% | Yes |
| 2018 | 365 | 100% | Yes |
| 2019 | 295 | 81% | No |
| 2020 | 275 | 75% | No |
| 2021 | 279 | 76% | No |
| 2022 | 259 | 71% | No |
| 2023 | 266 | 73% | No |
| 2024 | 257 | 70% | No |
| 2025 | 323 | 88% | No |
| 2026 | 250 | 68% | No |
Latest Records
20| Date | Station | Record | Value | Beat old record by | Old record stood | Significance |
|---|---|---|---|---|---|---|
| 4 September 2026 | Ostrov Kotelnyj, RU | daily high min (Provisional) | 4.1 C (39.4 F) | 0.4 C (0.7 F) | 31 years | 19 of 100 (Routine) |
| 14 August 2026 | Ostrov Kotelnyj, RU | daily low min | -5.3 C (22.5 F) | 1.1 C (2.0 F) | 47 years | 27 of 100 (Routine) |
| 10 August 2026 | Ostrov Kotelnyj, RU | daily high max | 18.8 C (65.8 F) | 1.1 C (2.0 F) | 35 years | 21 of 100 (Routine) |
| 5 August 2026 | Ostrov Kotelnyj, RU | daily low max | -0.5 C (31.1 F) | 0.5 C (0.9 F) | 40 years | 22 of 100 (Routine) |
| 30 July 2026 | Ostrov Kotelnyj, RU | daily low max | -0.2 C (31.6 F) | 0.4 C (0.7 F) | 32 years | 18 of 100 (Routine) |
| 9 July 2026 | Ostrov Kotelnyj, RU | daily low min | -3.2 C (26.2 F) | 0.9 C (1.6 F) | 83 years | 37 of 100 (Notable) |
| 10 May 2026 | Ostrov Kotelnyj, RU | daily high min | -3.6 C (25.5 F) | 3.0 C (5.4 F) | 65 years | 33 of 100 (Routine) |
| 9 May 2026 | Ostrov Kotelnyj, RU | daily high min | -5.8 C (21.6 F) | 0.3 C (0.5 F) | 36 years | 19 of 100 (Routine) |
| 27 January 2026 | Ostrov Kotelnyj, RU | monthly high min | -13.7 C (7.3 F) | 0.1 C (0.2 F) | 89 years | 45 of 100 (Notable) |
| 18 January 2026 | Ostrov Kotelnyj, RU | daily high min | -14.4 C (6.1 F) | 6.0 C (10.8 F) | 86 years | 45 of 100 (Notable) |
| 18 January 2026 | Ostrov Kotelnyj, RU | daily high max | -8.0 C (17.6 F) | 1.5 C (2.7 F) | 88 years | 37 of 100 (Notable) |
| 17 January 2026 | Ostrov Kotelnyj, RU | daily high max | -8.6 C (16.5 F) | 4.1 C (7.4 F) | 32 years | 24 of 100 (Routine) |
| 8 December 2025 | Ostrov Kotelnyj, RU | daily high min | -16.6 C (2.1 F) | 0.7 C (1.3 F) | 67 years | 30 of 100 (Routine) |
| 6 December 2025 | Ostrov Kotelnyj, RU | daily rain | 2.9 mm (0.11 in) | 1.7 mm (0.07 in) | 56 years | 20 of 100 (Routine) |
| 27 October 2025 | Ostrov Kotelnyj, RU | daily high min | -6.6 C (20.1 F) | 3.2 C (5.8 F) | 14 years | 17 of 100 (Routine) |
| 12 October 2025 | Ostrov Kotelnyj, RU | daily high min | -0.6 C (30.9 F) | 1.2 C (2.2 F) | 3 years | 10 of 100 (Routine) |
| 10 October 2025 | Ostrov Kotelnyj, RU | daily high min | -0.6 C (30.9 F) | 0.9 C (1.6 F) | 7 years | 12 of 100 (Routine) |
| 9 October 2025 | Ostrov Kotelnyj, RU | daily high min | -0.8 C (30.6 F) | 0.8 C (1.4 F) | 22 years | 16 of 100 (Routine) |
| 9 October 2025 | Ostrov Kotelnyj, RU | daily rain | 2.4 mm (0.09 in) | 0.1 mm (0.00 in) | 22 years | 15 of 100 (Routine) |
| 24 July 2025 | Ostrov Kotelnyj, RU | daily high min | 9.5 C (49.1 F) | 1.9 C (3.4 F) | 60 years | 36 of 100 (Notable) |
Climate Trend
76 complete years, 1938 to 2025| Year | Annual mean temperature | Difference from the station mean |
|---|---|---|
| 1938 | -12.8 C | +1.57 C |
| 1940 | -13.3 C | +1.10 C |
| 1941 | -15.5 C | -1.13 C |
| 1942 | -14.7 C | -0.31 C |
| 1943 | -12.3 C | +2.07 C |
| 1944 | -13.8 C | +0.59 C |
| 1945 | -14.0 C | +0.36 C |
| 1946 | -15.6 C | -1.24 C |
| 1947 | -12.9 C | +1.48 C |
| 1948 | -15.7 C | -1.36 C |
| 1949 | -14.7 C | -0.35 C |
| 1950 | -16.0 C | -1.62 C |
| 1951 | -14.8 C | -0.45 C |
| 1952 | -13.9 C | +0.46 C |
| 1953 | -13.8 C | +0.57 C |
| 1954 | -14.6 C | -0.22 C |
| 1955 | -15.6 C | -1.27 C |
| 1956 | -15.0 C | -0.64 C |
| 1957 | -15.9 C | -1.53 C |
| 1958 | -15.7 C | -1.33 C |
| 1959 | -13.8 C | +0.60 C |
| 1960 | -14.0 C | +0.39 C |
| 1961 | -15.2 C | -0.80 C |
| 1962 | -16.4 C | -2.01 C |
| 1963 | -16.9 C | -2.57 C |
| 1964 | -15.8 C | -1.48 C |
| 1965 | -15.6 C | -1.29 C |
| 1966 | -15.6 C | -1.27 C |
| 1967 | -14.9 C | -0.53 C |
| 1968 | -14.1 C | +0.28 C |
| 1969 | -14.9 C | -0.57 C |
| 1970 | -15.1 C | -0.70 C |
| 1971 | -13.3 C | +1.07 C |
| 1972 | -15.6 C | -1.22 C |
| 1973 | -15.1 C | -0.77 C |
| 1974 | -14.8 C | -0.41 C |
| 1975 | -14.2 C | +0.11 C |
| 1977 | -14.9 C | -0.59 C |
| 1978 | -15.7 C | -1.31 C |
| 1979 | -17.5 C | -3.18 C |
| 1980 | -15.0 C | -0.68 C |
| 1981 | -12.9 C | +1.46 C |
| 1982 | -15.2 C | -0.86 C |
| 1983 | -14.8 C | -0.46 C |
| 1984 | -15.2 C | -0.88 C |
| 1985 | -14.7 C | -0.38 C |
| 1986 | -15.6 C | -1.24 C |
| 1987 | -16.2 C | -1.80 C |
| 1988 | -14.4 C | -0.07 C |
| 1989 | -15.3 C | -0.91 C |
| 1990 | -14.1 C | +0.21 C |
| 1991 | -13.0 C | +1.33 C |
| 1992 | -16.7 C | -2.32 C |
| 1993 | -15.7 C | -1.33 C |
| 1994 | -14.0 C | +0.32 C |
| 1995 | -12.8 C | +1.60 C |
| 1996 | -15.9 C | -1.58 C |
| 1997 | -14.3 C | +0.09 C |
| 1999 | -15.0 C | -0.68 C |
| 2000 | -14.2 C | +0.11 C |
| 2002 | -14.0 C | +0.32 C |
| 2004 | -14.9 C | -0.54 C |
| 2005 | -12.6 C | +1.76 C |
| 2006 | -13.5 C | +0.83 C |
| 2007 | -11.7 C | +2.61 C |
| 2008 | -13.4 C | +0.91 C |
| 2009 | -13.3 C | +1.05 C |
| 2010 | -11.7 C | +2.63 C |
| 2011 | -11.5 C | +2.90 C |
| 2012 | -12.0 C | +2.34 C |
| 2013 | -13.1 C | +1.24 C |
| 2015 | -12.9 C | +1.43 C |
| 2016 | -12.0 C | +2.39 C |
| 2017 | -12.2 C | +2.17 C |
| 2018 | -11.2 C | +3.16 C |
| 2025 | -11.7 C | +2.61 C |
The annual mean temperature here has risen by 0.3 C (0.1 to 0.4) per decade over 1938 to 2025. In Fahrenheit: 0.5 F (0.2 to 0.7) per decade. The slope is a straight line fitted to 76 complete years; the brackets give its 95 percent interval.
| Measure | Per decade (C) | Per decade (F) | Period | Complete years | Reading |
|---|---|---|---|---|---|
| Annual mean temperature | 0.3 C (0.1 to 0.4) per decade | 0.5 F (0.2 to 0.7) per decade | 1938 to 2025 | 76 | Rise |
| Mean daily maximum | 0.2 C (0.1 to 0.3) per decade | 0.4 F (0.1 to 0.6) per decade | 1938 to 2025 | 76 | Rise |
| Mean daily minimum | 0.3 C (0.2 to 0.4) per decade | 0.6 F (0.3 to 0.8) per decade | 1938 to 2025 | 76 | Rise |
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 2026| Measure | Record | Year of the record | Median year | Years with a value |
|---|---|---|---|---|
| Hottest day (TXx) | 25.1 C (77.2 F) | 1991 | 15.9 C (60.6 F) | 91 |
| Coldest night (TNn) | -49.9 C (-57.8 F) | 2002 | -41.6 C (-42.9 F) | 91 |
| Wettest day (Rx1day) | 39.0 mm (1.5 in) | 1980 | 11.2 mm (0.4 in) | 91 |
| Wettest five days (Rx5day) | 54.8 mm (2.2 in) | 1980 | 16.5 mm (0.6 in) | 91 |
| Longest dry spell (CDD) | 163 days | 1983 | 61 days | 91 |
Hottest day (TXx)
| Year | Hottest day (TXx) |
|---|---|
| 1936 | 20.7 C (69.3 F) |
| 1937 | 16.7 C (62.1 F) |
| 1938 | 18.5 C (65.3 F) |
| 1939 | 15.2 C (59.4 F) |
| 1940 | 15.3 C (59.5 F) |
| 1941 | 21.9 C (71.4 F) |
| 1942 | 10.7 C (51.3 F) |
| 1943 | 15.4 C (59.7 F) |
| 1944 | 12.3 C (54.1 F) |
| 1945 | 19.8 C (67.6 F) |
| 1946 | 15.9 C (60.6 F) |
| 1947 | 16.9 C (62.4 F) |
| 1948 | 13.9 C (57.0 F) |
| 1949 | 10.5 C (50.9 F) |
| 1950 | 11.5 C (52.7 F) |
| 1951 | 14.4 C (57.9 F) |
| 1952 | 17.4 C (63.3 F) |
| 1953 | 15.8 C (60.4 F) |
| 1954 | 13.1 C (55.6 F) |
| 1955 | 14.1 C (57.4 F) |
| 1956 | 17.6 C (63.7 F) |
| 1957 | 16.0 C (60.8 F) |
| 1958 | 16.3 C (61.3 F) |
| 1959 | 15.5 C (59.9 F) |
| 1960 | 19.9 C (67.8 F) |
| 1961 | 16.8 C (62.2 F) |
| 1962 | 10.9 C (51.6 F) |
| 1963 | 10.5 C (50.9 F) |
| 1964 | 16.7 C (62.1 F) |
| 1965 | 19.0 C (66.2 F) |
| 1966 | 17.4 C (63.3 F) |
| 1967 | 12.0 C (53.6 F) |
| 1968 | 18.4 C (65.1 F) |
| 1969 | 15.1 C (59.2 F) |
| 1970 | 14.5 C (58.1 F) |
| 1971 | 21.3 C (70.3 F) |
| 1972 | 20.4 C (68.7 F) |
| 1973 | 20.0 C (68.0 F) |
| 1974 | 16.3 C (61.3 F) |
| 1975 | 13.8 C (56.8 F) |
| 1976 | 14.8 C (58.6 F) |
| 1977 | 17.9 C (64.2 F) |
| 1978 | 12.7 C (54.9 F) |
| 1979 | 11.9 C (53.4 F) |
| 1980 | 15.7 C (60.3 F) |
| 1981 | 14.1 C (57.4 F) |
| 1982 | 15.6 C (60.1 F) |
| 1983 | 20.2 C (68.4 F) |
| 1984 | 15.9 C (60.6 F) |
| 1985 | 14.6 C (58.3 F) |
| 1986 | 12.8 C (55.0 F) |
| 1987 | 17.3 C (63.1 F) |
| 1988 | 19.3 C (66.7 F) |
| 1989 | 13.5 C (56.3 F) |
| 1990 | 17.2 C (63.0 F) |
| 1991 | 25.1 C (77.2 F) |
| 1992 | 10.5 C (50.9 F) |
| 1993 | 15.4 C (59.7 F) |
| 1994 | 14.7 C (58.5 F) |
| 1995 | 15.9 C (60.6 F) |
| 1996 | 14.0 C (57.2 F) |
| 1997 | 21.2 C (70.2 F) |
| 1998 | 13.1 C (55.6 F) |
| 1999 | 15.8 C (60.4 F) |
| 2000 | 11.0 C (51.8 F) |
| 2001 | 17.3 C (63.1 F) |
| 2002 | 19.0 C (66.2 F) |
| 2003 | 18.4 C (65.1 F) |
| 2004 | 11.6 C (52.9 F) |
| 2005 | 22.4 C (72.3 F) |
| 2006 | 14.4 C (57.9 F) |
| 2007 | 17.5 C (63.5 F) |
| 2008 | 18.1 C (64.6 F) |
| 2009 | 12.2 C (54.0 F) |
| 2010 | 20.4 C (68.7 F) |
| 2011 | 14.4 C (57.9 F) |
| 2012 | 18.7 C (65.7 F) |
| 2013 | 16.9 C (62.4 F) |
| 2014 | 12.2 C (54.0 F) |
| 2015 | 20.4 C (68.7 F) |
| 2016 | 16.9 C (62.4 F) |
| 2017 | 9.1 C (48.4 F) |
| 2018 | 15.7 C (60.3 F) |
| 2019 | 21.4 C (70.5 F) |
| 2020 | 15.0 C (59.0 F) |
| 2021 | 15.9 C (60.6 F) |
| 2022 | 14.4 C (57.9 F) |
| 2023 | 22.0 C (71.6 F) |
| 2024 | 20.0 C (68.0 F) |
| 2025 | 18.6 C (65.5 F) |
| 2026 | 18.8 C (65.8 F) |
Coldest night (TNn)
| Year | Coldest night (TNn) |
|---|---|
| 1936 | -42.0 C (-43.6 F) |
| 1937 | -43.3 C (-45.9 F) |
| 1938 | -42.4 C (-44.3 F) |
| 1939 | -41.6 C (-42.9 F) |
| 1940 | -41.3 C (-42.3 F) |
| 1941 | -43.9 C (-47.0 F) |
| 1942 | -41.7 C (-43.1 F) |
| 1943 | -40.5 C (-40.9 F) |
| 1944 | -43.2 C (-45.8 F) |
| 1945 | -42.9 C (-45.2 F) |
| 1946 | -42.8 C (-45.0 F) |
| 1947 | -41.6 C (-42.9 F) |
| 1948 | -42.9 C (-45.2 F) |
| 1949 | -42.8 C (-45.0 F) |
| 1950 | -41.1 C (-42.0 F) |
| 1951 | -46.8 C (-52.2 F) |
| 1952 | -41.1 C (-42.0 F) |
| 1953 | -44.3 C (-47.7 F) |
| 1954 | -44.2 C (-47.6 F) |
| 1955 | -43.6 C (-46.5 F) |
| 1956 | -45.4 C (-49.7 F) |
| 1957 | -45.0 C (-49.0 F) |
| 1958 | -44.9 C (-48.8 F) |
| 1959 | -41.4 C (-42.5 F) |
| 1960 | -43.4 C (-46.1 F) |
| 1961 | -43.6 C (-46.5 F) |
| 1962 | -41.3 C (-42.3 F) |
| 1963 | -44.4 C (-47.9 F) |
| 1964 | -43.0 C (-45.4 F) |
| 1965 | -43.2 C (-45.8 F) |
| 1966 | -46.2 C (-51.2 F) |
| 1967 | -46.1 C (-51.0 F) |
| 1968 | -43.3 C (-45.9 F) |
| 1969 | -41.0 C (-41.8 F) |
| 1970 | -38.8 C (-37.8 F) |
| 1971 | -42.3 C (-44.1 F) |
| 1972 | -40.1 C (-40.2 F) |
| 1973 | -46.1 C (-51.0 F) |
| 1974 | -44.8 C (-48.6 F) |
| 1975 | -42.2 C (-44.0 F) |
| 1976 | -39.9 C (-39.8 F) |
| 1977 | -41.8 C (-43.2 F) |
| 1978 | -43.4 C (-46.1 F) |
| 1979 | -45.0 C (-49.0 F) |
| 1980 | -41.3 C (-42.3 F) |
| 1981 | -38.9 C (-38.0 F) |
| 1982 | -41.1 C (-42.0 F) |
| 1983 | -42.9 C (-45.2 F) |
| 1984 | -40.5 C (-40.9 F) |
| 1985 | -40.8 C (-41.4 F) |
| 1986 | -42.2 C (-44.0 F) |
| 1987 | -42.6 C (-44.7 F) |
| 1988 | -41.3 C (-42.3 F) |
| 1989 | -39.5 C (-39.1 F) |
| 1990 | -43.2 C (-45.8 F) |
| 1991 | -42.4 C (-44.3 F) |
| 1992 | -43.2 C (-45.8 F) |
| 1993 | -43.1 C (-45.6 F) |
| 1994 | -40.7 C (-41.3 F) |
| 1995 | -40.9 C (-41.6 F) |
| 1996 | -41.9 C (-43.4 F) |
| 1997 | -40.5 C (-40.9 F) |
| 1998 | -41.0 C (-41.8 F) |
| 1999 | -40.2 C (-40.4 F) |
| 2000 | -44.2 C (-47.6 F) |
| 2001 | -39.2 C (-38.6 F) |
| 2002 | -49.9 C (-57.8 F) |
| 2003 | -38.6 C (-37.5 F) |
| 2004 | -42.9 C (-45.2 F) |
| 2005 | -40.0 C (-40.0 F) |
| 2006 | -39.9 C (-39.8 F) |
| 2007 | -41.0 C (-41.8 F) |
| 2008 | -41.0 C (-41.8 F) |
| 2009 | -39.5 C (-39.1 F) |
| 2010 | -42.3 C (-44.1 F) |
| 2011 | -39.5 C (-39.1 F) |
| 2012 | -39.6 C (-39.3 F) |
| 2013 | -41.4 C (-42.5 F) |
| 2014 | -36.8 C (-34.2 F) |
| 2015 | -39.9 C (-39.8 F) |
| 2016 | -40.3 C (-40.5 F) |
| 2017 | -38.2 C (-36.8 F) |
| 2018 | -42.4 C (-44.3 F) |
| 2019 | -39.9 C (-39.8 F) |
| 2020 | -34.9 C (-30.8 F) |
| 2021 | -37.6 C (-35.7 F) |
| 2022 | -37.0 C (-34.6 F) |
| 2023 | -39.6 C (-39.3 F) |
| 2024 | -38.2 C (-36.8 F) |
| 2025 | -40.5 C (-40.9 F) |
| 2026 | -38.5 C (-37.3 F) |
Wettest day (Rx1day)
| Year | Wettest day (Rx1day) |
|---|---|
| 1936 | 11.5 mm (0.5 in) |
| 1937 | 10.9 mm (0.4 in) |
| 1938 | 9.6 mm (0.38 in) |
| 1939 | 12.3 mm (0.5 in) |
| 1940 | 8.2 mm (0.32 in) |
| 1941 | 16.2 mm (0.6 in) |
| 1942 | 4.5 mm (0.18 in) |
| 1943 | 8.2 mm (0.32 in) |
| 1944 | 9.4 mm (0.37 in) |
| 1945 | 5.7 mm (0.22 in) |
| 1946 | 9.4 mm (0.37 in) |
| 1947 | 6.3 mm (0.25 in) |
| 1948 | 12.2 mm (0.5 in) |
| 1949 | 16.9 mm (0.7 in) |
| 1950 | 3.4 mm (0.13 in) |
| 1951 | 25.9 mm (1.0 in) |
| 1952 | 12.7 mm (0.5 in) |
| 1953 | 15.6 mm (0.6 in) |
| 1954 | 21.9 mm (0.9 in) |
| 1955 | 11.2 mm (0.4 in) |
| 1956 | 14.0 mm (0.6 in) |
| 1957 | 7.6 mm (0.30 in) |
| 1958 | 15.7 mm (0.6 in) |
| 1959 | 6.1 mm (0.24 in) |
| 1960 | 12.9 mm (0.5 in) |
| 1961 | 14.1 mm (0.6 in) |
| 1962 | 9.1 mm (0.36 in) |
| 1963 | 13.8 mm (0.5 in) |
| 1964 | 7.7 mm (0.30 in) |
| 1965 | 14.2 mm (0.6 in) |
| 1966 | 11.2 mm (0.4 in) |
| 1967 | 15.2 mm (0.6 in) |
| 1968 | 13.7 mm (0.5 in) |
| 1969 | 12.4 mm (0.5 in) |
| 1970 | 9.7 mm (0.38 in) |
| 1971 | 6.4 mm (0.25 in) |
| 1972 | 17.2 mm (0.7 in) |
| 1973 | 9.7 mm (0.38 in) |
| 1974 | 10.2 mm (0.4 in) |
| 1975 | 7.2 mm (0.28 in) |
| 1976 | 12.2 mm (0.5 in) |
| 1977 | 26.3 mm (1.0 in) |
| 1978 | 5.7 mm (0.22 in) |
| 1979 | 7.8 mm (0.31 in) |
| 1980 | 39.0 mm (1.5 in) |
| 1981 | 11.5 mm (0.5 in) |
| 1982 | 4.9 mm (0.19 in) |
| 1983 | 13.0 mm (0.5 in) |
| 1984 | 9.8 mm (0.39 in) |
| 1985 | 6.7 mm (0.26 in) |
| 1986 | 5.9 mm (0.23 in) |
| 1987 | 9.5 mm (0.37 in) |
| 1988 | 14.4 mm (0.6 in) |
| 1989 | 8.3 mm (0.33 in) |
| 1990 | 6.8 mm (0.27 in) |
| 1991 | 12.7 mm (0.5 in) |
| 1992 | 8.2 mm (0.32 in) |
| 1993 | 11.7 mm (0.5 in) |
| 1994 | 8.0 mm (0.31 in) |
| 1995 | 5.6 mm (0.22 in) |
| 1996 | 11.9 mm (0.5 in) |
| 1997 | 9.8 mm (0.39 in) |
| 1998 | 7.2 mm (0.28 in) |
| 1999 | 18.5 mm (0.7 in) |
| 2000 | 8.8 mm (0.35 in) |
| 2001 | 10.2 mm (0.4 in) |
| 2002 | 10.0 mm (0.4 in) |
| 2003 | 14.6 mm (0.6 in) |
| 2004 | 6.8 mm (0.27 in) |
| 2005 | 7.4 mm (0.29 in) |
| 2006 | 14.0 mm (0.6 in) |
| 2007 | 12.3 mm (0.5 in) |
| 2008 | 14.8 mm (0.6 in) |
| 2009 | 24.3 mm (1.0 in) |
| 2010 | 10.1 mm (0.4 in) |
| 2011 | 12.8 mm (0.5 in) |
| 2012 | 27.2 mm (1.1 in) |
| 2013 | 5.4 mm (0.21 in) |
| 2014 | 10.8 mm (0.4 in) |
| 2015 | 11.8 mm (0.5 in) |
| 2016 | 14.8 mm (0.6 in) |
| 2017 | 18.7 mm (0.7 in) |
| 2018 | 14.6 mm (0.6 in) |
| 2019 | 13.0 mm (0.5 in) |
| 2020 | 11.9 mm (0.5 in) |
| 2021 | 11.9 mm (0.5 in) |
| 2022 | 7.9 mm (0.31 in) |
| 2023 | 7.9 mm (0.31 in) |
| 2024 | 26.9 mm (1.1 in) |
| 2025 | 6.0 mm (0.24 in) |
| 2026 | 10.0 mm (0.4 in) |
Wettest five days (Rx5day)
| Year | Wettest five days (Rx5day) |
|---|---|
| 1936 | 14.2 mm (0.6 in) |
| 1937 | 13.5 mm (0.5 in) |
| 1938 | 18.8 mm (0.7 in) |
| 1939 | 16.4 mm (0.6 in) |
| 1940 | 12.8 mm (0.5 in) |
| 1941 | 25.1 mm (1.0 in) |
| 1942 | 8.6 mm (0.34 in) |
| 1943 | 24.7 mm (1.0 in) |
| 1944 | 21.1 mm (0.8 in) |
| 1945 | 7.9 mm (0.31 in) |
| 1946 | 12.2 mm (0.5 in) |
| 1947 | 9.6 mm (0.38 in) |
| 1948 | 14.4 mm (0.6 in) |
| 1949 | 18.9 mm (0.7 in) |
| 1950 | 5.2 mm (0.20 in) |
| 1951 | 29.0 mm (1.1 in) |
| 1952 | 15.7 mm (0.6 in) |
| 1953 | 21.9 mm (0.9 in) |
| 1954 | 36.4 mm (1.4 in) |
| 1955 | 13.1 mm (0.5 in) |
| 1956 | 22.2 mm (0.9 in) |
| 1957 | 14.9 mm (0.6 in) |
| 1958 | 18.6 mm (0.7 in) |
| 1959 | 15.6 mm (0.6 in) |
| 1960 | 14.5 mm (0.6 in) |
| 1961 | 19.0 mm (0.7 in) |
| 1962 | 12.1 mm (0.5 in) |
| 1963 | 37.7 mm (1.5 in) |
| 1964 | 15.1 mm (0.6 in) |
| 1965 | 14.7 mm (0.6 in) |
| 1966 | 20.5 mm (0.8 in) |
| 1967 | 25.9 mm (1.0 in) |
| 1968 | 35.7 mm (1.4 in) |
| 1969 | 26.4 mm (1.0 in) |
| 1970 | 11.9 mm (0.5 in) |
| 1971 | 15.9 mm (0.6 in) |
| 1972 | 20.1 mm (0.8 in) |
| 1973 | 12.8 mm (0.5 in) |
| 1974 | 22.9 mm (0.9 in) |
| 1975 | 10.4 mm (0.4 in) |
| 1976 | 23.7 mm (0.9 in) |
| 1977 | 39.2 mm (1.5 in) |
| 1978 | 11.0 mm (0.4 in) |
| 1979 | 15.9 mm (0.6 in) |
| 1980 | 54.8 mm (2.2 in) |
| 1981 | 20.2 mm (0.8 in) |
| 1982 | 8.5 mm (0.33 in) |
| 1983 | 17.7 mm (0.7 in) |
| 1984 | 12.4 mm (0.5 in) |
| 1985 | 11.3 mm (0.4 in) |
| 1986 | 14.3 mm (0.6 in) |
| 1987 | 11.8 mm (0.5 in) |
| 1988 | 22.8 mm (0.9 in) |
| 1989 | 15.9 mm (0.6 in) |
| 1990 | 14.8 mm (0.6 in) |
| 1991 | 15.7 mm (0.6 in) |
| 1992 | 22.2 mm (0.9 in) |
| 1993 | 22.5 mm (0.9 in) |
| 1994 | 19.9 mm (0.8 in) |
| 1995 | 15.6 mm (0.6 in) |
| 1996 | 13.2 mm (0.5 in) |
| 1997 | 12.2 mm (0.5 in) |
| 1998 | 10.8 mm (0.4 in) |
| 1999 | 24.1 mm (0.9 in) |
| 2000 | 16.6 mm (0.7 in) |
| 2001 | 19.8 mm (0.8 in) |
| 2002 | 20.7 mm (0.8 in) |
| 2003 | 40.1 mm (1.6 in) |
| 2004 | 13.7 mm (0.5 in) |
| 2005 | 14.6 mm (0.6 in) |
| 2006 | 28.2 mm (1.1 in) |
| 2007 | 26.2 mm (1.0 in) |
| 2008 | 25.0 mm (1.0 in) |
| 2009 | 45.2 mm (1.8 in) |
| 2010 | 14.0 mm (0.6 in) |
| 2011 | 16.5 mm (0.6 in) |
| 2012 | 32.0 mm (1.3 in) |
| 2013 | 11.7 mm (0.5 in) |
| 2014 | 16.1 mm (0.6 in) |
| 2015 | 16.6 mm (0.7 in) |
| 2016 | 23.2 mm (0.9 in) |
| 2017 | 22.8 mm (0.9 in) |
| 2018 | 27.1 mm (1.1 in) |
| 2019 | 16.1 mm (0.6 in) |
| 2020 | 23.6 mm (0.9 in) |
| 2021 | 18.3 mm (0.7 in) |
| 2022 | 17.8 mm (0.7 in) |
| 2023 | 14.8 mm (0.6 in) |
| 2024 | 42.9 mm (1.7 in) |
| 2025 | 7.8 mm (0.31 in) |
| 2026 | 3.2 mm (0.13 in) |
Longest dry spell (CDD)
| Year | Longest dry spell (CDD) |
|---|---|
| 1936 | 139 days |
| 1937 | 154 days |
| 1938 | 98 days |
| 1939 | 77 days |
| 1940 | 69 days |
| 1941 | 111 days |
| 1942 | 137 days |
| 1943 | 74 days |
| 1944 | 66 days |
| 1945 | 64 days |
| 1946 | 127 days |
| 1947 | 153 days |
| 1948 | 106 days |
| 1949 | 114 days |
| 1950 | 99 days |
| 1951 | 71 days |
| 1952 | 156 days |
| 1953 | 42 days |
| 1954 | 47 days |
| 1955 | 49 days |
| 1956 | 47 days |
| 1957 | 87 days |
| 1958 | 36 days |
| 1959 | 28 days |
| 1960 | 54 days |
| 1961 | 86 days |
| 1962 | 30 days |
| 1963 | 57 days |
| 1964 | 37 days |
| 1965 | 56 days |
| 1966 | 25 days |
| 1967 | 30 days |
| 1968 | 53 days |
| 1969 | 31 days |
| 1970 | 79 days |
| 1971 | 47 days |
| 1972 | 43 days |
| 1973 | 48 days |
| 1974 | 96 days |
| 1975 | 25 days |
| 1976 | 43 days |
| 1977 | 88 days |
| 1978 | 50 days |
| 1979 | 48 days |
| 1980 | 55 days |
| 1981 | 29 days |
| 1982 | 89 days |
| 1983 | 163 days |
| 1984 | 52 days |
| 1985 | 46 days |
| 1986 | 42 days |
| 1987 | 89 days |
| 1988 | 53 days |
| 1989 | 66 days |
| 1990 | 37 days |
| 1991 | 30 days |
| 1992 | 51 days |
| 1993 | 68 days |
| 1994 | 55 days |
| 1995 | 78 days |
| 1996 | 38 days |
| 1997 | 47 days |
| 1998 | 67 days |
| 1999 | 84 days |
| 2000 | 67 days |
| 2001 | 41 days |
| 2002 | 88 days |
| 2003 | 75 days |
| 2004 | 79 days |
| 2005 | 154 days |
| 2006 | 72 days |
| 2007 | 56 days |
| 2008 | 115 days |
| 2009 | 76 days |
| 2010 | 99 days |
| 2011 | 54 days |
| 2012 | 34 days |
| 2013 | 65 days |
| 2014 | 44 days |
| 2015 | 78 days |
| 2016 | 151 days |
| 2017 | 104 days |
| 2018 | 61 days |
| 2019 | 71 days |
| 2020 | 36 days |
| 2021 | 25 days |
| 2022 | 69 days |
| 2023 | 21 days |
| 2024 | 20 days |
| 2025 | 59 days |
| 2026 | 32 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
76 years with a frostAcross 76 years with a frost, the median last spring frost at Ostrov Kotelnyj falls on 30 June and the median first autumn frost on 2 July, which leaves a median of 2 days between them.
In 1986 to 2025 the median growing season was 3 days. That is 1 day more than in 1938 to 1968.
Fitted over all years, the growing season changes by +1.1 days per decade at this station.
| Measure | Median, all years | Earliest period (1938 to 1968) | Recent period (1986 to 2025) | Recent against earliest | Fitted trend |
|---|---|---|---|---|---|
| Last spring frost | 30 June | 30 June | 30 June | no change | 0.0 days per decade |
| First autumn frost | 2 July | 2 July | 3 July | 1 day later | +1.1 days per decade |
| Growing days | 2 days | 2 days | 3 days | 1 day more | +1.1 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 2025A day with at least 10.7 mm (0.4 in) of rain is expected about once in 2 years. A day with at least 31.3 mm (1.2 in) of rain is expected about once in 100 years.
| Expected about once in | A day with at least | Note |
|---|---|---|
| 2 years | 10.7 mm (0.4 in) | |
| 5 years | 15.4 mm (0.6 in) | |
| 10 years | 18.8 mm (0.7 in) | |
| 25 years | 23.5 mm (0.9 in) | |
| 50 years | 27.3 mm (1.1 in) | |
| 100 years | 31.3 mm (1.2 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 2025.
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: 39.0 mm (1.5 in) in 1980; 27.2 mm (1.1 in) in 2012; 26.3 mm (1.0 in) in 1977.
Climate Twins
2004 to 2025 against 1961 to 1990Over 2004 to 2025, Ostrov Kotelnyj had a mean temperature of -12.5 C (9.4 F) and 149.7 mm (5.9 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Clyde A (Canada, 3,629 km away), Mys Billingsa (Russia, 1,377 km away) and Cape Parry A (Canada, 2,842 km away).
| Twin station | Country | Distance away | Mean temperature, 1961-1990 | Rain a year, 1961-1990 | Climate difference |
|---|---|---|---|---|---|
| Clyde A | Canada | 3,629 km (2,255 mi) | -12.3 C (9.9 F) | 215.0 mm (8.5 in) | 0.89 |
| Mys Billingsa | Russia | 1,377 km (856 mi) | -12.8 C (9.0 F) | 209.0 mm (8.2 in) | 1.02 |
| Cape Parry A | Canada | 2,842 km (1,766 mi) | -12.2 C (10.1 F) | 166.4 mm (6.6 in) | 1.20 |
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
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 (2026-10-17).