Koigorodok Weather Records (RSM00023904)

Record envelope, standing records and threshold days for Koigorodok (RSM00023904), Russia, with 61 years of record.

Key Facts for Koigorodok

Koigorodok (RSM00023904) is a weather station in Russia at 60.45 latitude and 50.97 longitude, 124 m (407 ft) above sea level.
The station reports from 1959 to 2019, 61 years of record.
1,464 records set at Koigorodok still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Koigorodok tied a daily record high maximum temperature of 30.5 C (86.9 F) on 9 June 2019.

About the Station

Location: Russia, 60.45 latitude, 50.97 longitude.
Elevation: 124 m (407 ft).
Period of record: 1959 to 2019, 61 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

0 days at or beyond a record

The band shows the record high and record low for each calendar day at Koigorodok. The lines show the 2026 daily maximum and minimum. 0 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Koigorodok, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	3.4 C (38.1 F)	-47.8 C (-54.0 F)	n/a	n/a
Feb	7.7 C (45.9 F)	-47.4 C (-53.3 F)	n/a	n/a
Mar	14.6 C (58.3 F)	-42.0 C (-43.6 F)	n/a	n/a
Apr	26.0 C (78.8 F)	-30.1 C (-22.2 F)	n/a	n/a
May	32.7 C (90.9 F)	-14.6 C (5.7 F)	n/a	n/a
Jun	34.7 C (94.5 F)	-5.5 C (22.1 F)	n/a	n/a
Jul	37.0 C (98.6 F)	-0.6 C (30.9 F)	n/a	n/a
Aug	35.8 C (96.4 F)	-4.5 C (23.9 F)	n/a	n/a
Sep	27.8 C (82.0 F)	-7.1 C (19.2 F)	n/a	n/a
Oct	21.5 C (70.7 F)	-28.2 C (-18.8 F)	n/a	n/a
Nov	10.9 C (51.6 F)	-40.5 C (-40.9 F)	n/a	n/a
Dec	6.4 C (43.5 F)	-51.4 C (-60.5 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Koigorodok still stand. 1969 holds the most, with 48.

Standing records at Koigorodok by the year they were set
Year set	Standing records
1959	10
1960	23
1961	16
1962	25
1963	44
1964	18
1965	18
1966	21
1967	24
1968	47
1969	48
1970	17
1971	31
1972	28
1973	31
1974	14
1975	23
1976	24
1977	26
1978	28
1979	36
1980	19
1981	24
1982	28
1983	29
1984	13
1985	16
1986	26
1987	28
1988	16
1989	23
1990	22
1991	21
1992	29
1993	14
1994	19
1995	42
1996	16
1997	10
1998	44
1999	29
2000	21
2001	22
2002	34
2003	12
2004	13
2005	23
2006	38
2007	29
2008	30
2009	23
2010	47
2011	11
2012	13
2013	20
2014	26
2015	34
2016	26
2017	13
2018	6
2019	3

All-Time Record Progression

2 new records

2 all-time records were set at Koigorodok between 20 August 2008 and 30 July 2010. Each dot is a new record.

When Koigorodok set new all-time records
Date	Kind	Detail
2008-08-20	Record daily precipitation	Record daily precipitation 94.0 mm (3.7 in)
2010-07-30	Record high maximum temperature	Record high maximum temperature 37.0 C (98.6 F)

Wettest Day of Each Month

Aug: 94.0 mm (3.7 in)

The wettest day on record for each calendar month at Koigorodok. The most was 94.0 mm (3.7 in) on 20 August 2008.

Record daily precipitation for each month at Koigorodok
Month	Record daily precipitation (mm)	Date
Jan	15.5 mm (0.6 in)	9 January 1982
Feb	12.7 mm (0.5 in)	4 February 2018
Mar	15.5 mm (0.6 in)	25 March 1962
Apr	19.1 mm (0.8 in)	24 April 1966
May	60.6 mm (2.4 in)	17 May 1997
Jun	47.2 mm (1.9 in)	9 June 1993
Jul	64.0 mm (2.5 in)	18 July 1965
Aug	94.0 mm (3.7 in)	20 August 2008
Sep	55.1 mm (2.2 in)	15 September 1965
Oct	27.1 mm (1.1 in)	8 October 2018
Nov	28.8 mm (1.1 in)	6 November 1992
Dec	14.6 mm (0.6 in)	6 December 2011

Period of Record Coverage

1959 to 2019

61 years of record at Koigorodok, 1959 to 2019. 2 years have data for under 90 percent of days and are left out of rankings: 1959, 2019.

Days with data per year at Koigorodok
Year	Days with data	Share of year	Complete
1959	147	40%	No
1960	357	98%	Yes
1961	360	99%	Yes
1962	345	95%	Yes
1963	355	97%	Yes
1964	364	99%	Yes
1965	362	99%	Yes
1966	363	99%	Yes
1967	365	100%	Yes
1968	364	99%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	364	99%	Yes
1973	364	100%	Yes
1974	365	100%	Yes
1975	329	90%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	349	95%	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	365	100%	Yes
1999	365	100%	Yes
2000	366	100%	Yes
2001	365	100%	Yes
2002	365	100%	Yes
2003	365	100%	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	365	100%	Yes
2015	365	100%	Yes
2016	366	100%	Yes
2017	365	100%	Yes
2018	365	100%	Yes
2019	181	50%	No

Latest Records

Latest records at Koigorodok
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 June 2019	Koigorodok, RU	daily high max (Tie)	30.5 C (86.9 F)	tie	29 years	3 of 100 (Routine)
3 June 2019	Koigorodok, RU	daily rain (Tie)	11.9 mm (0.5 in)	tie	13 years	2 of 100 (Routine)
19 May 2019	Koigorodok, RU	daily low max	4.5 C (40.1 F)	0.6 C (1.1 F)	20 years	12 of 100 (Routine)
13 May 2019	Koigorodok, RU	daily high min	13.7 C (56.7 F)	2.1 C (3.8 F)	6 years	12 of 100 (Routine)
11 May 2019	Koigorodok, RU	daily high max	28.5 C (83.3 F)	0.4 C (0.7 F)	8 years	8 of 100 (Routine)
11 April 2019	Koigorodok, RU	daily rain (Tie)	5.1 mm (0.20 in)	tie	26 years	3 of 100 (Routine)
26 March 2019	Koigorodok, RU	daily rain	10.8 mm (0.4 in)	2.0 mm (0.08 in)	56 years	20 of 100 (Routine)
6 March 2019	Koigorodok, RU	daily rain	14.1 mm (0.6 in)	7.4 mm (0.29 in)	56 years	20 of 100 (Routine)
1 February 2019	Koigorodok, RU	daily rain	4.0 mm (0.16 in)	0.1 mm (0.00 in)	56 years	20 of 100 (Routine)
17 January 2019	Koigorodok, RU	daily rain	5.2 mm (0.20 in)	0.6 mm (0.02 in)	59 years	20 of 100 (Routine)
8 October 2018	Koigorodok, RU	monthly rain	27.1 mm (1.1 in)	0.7 mm (0.03 in)	54 years	34 of 100 (Routine)
26 September 2018	Koigorodok, RU	daily rain	9.9 mm (0.39 in)	2.6 mm (0.10 in)	37 years	20 of 100 (Routine)
23 September 2018	Koigorodok, RU	daily high max	23.1 C (73.6 F)	1.5 C (2.7 F)	3 years	8 of 100 (Routine)
13 September 2018	Koigorodok, RU	daily rain	18.7 mm (0.7 in)	3.3 mm (0.13 in)	40 years	20 of 100 (Routine)
17 July 2018	Koigorodok, RU	daily rain	38.4 mm (1.5 in)	19.7 mm (0.8 in)	51 years	45 of 100 (Notable)
16 July 2018	Koigorodok, RU	daily rain	37.6 mm (1.5 in)	0.9 mm (0.04 in)	48 years	21 of 100 (Routine)
4 July 2018	Koigorodok, RU	daily rain	42.1 mm (1.7 in)	15.7 mm (0.6 in)	51 years	40 of 100 (Notable)
1 June 2018	Koigorodok, RU	daily low max	8.0 C (46.4 F)	0.1 C (0.2 F)	29 years	14 of 100 (Routine)
31 May 2018	Koigorodok, RU	daily low max	5.7 C (42.3 F)	1.8 C (3.2 F)	52 years	23 of 100 (Routine)
20 May 2018	Koigorodok, RU	daily rain	26.8 mm (1.1 in)	8.4 mm (0.33 in)	44 years	36 of 100 (Notable)

Climate Trend

56 complete years, 1960 to 2018

One stripe for each of 56 complete years at Koigorodok, 1960 to 2018. Blue stripes are years cooler than the station's own mean of 1.3 C (34.3 F); red stripes are warmer. The coolest year was 1969, at -2.0 C (28.4 F), and the warmest was 2008, at 3.4 C (38.1 F). The strongest colour marks a difference of 3.3 C (5.9 F).

Annual mean temperature at Koigorodok as warming stripes, 1960 to 2018
Year	Annual mean temperature	Difference from the station mean
1960	0.1 C	-1.16 C
1961	1.7 C	+0.40 C
1962	2.3 C	+1.04 C
1963	-0.4 C	-1.69 C
1964	0.6 C	-0.68 C
1965	0.2 C	-1.06 C
1966	-0.8 C	-2.11 C
1967	2.3 C	+0.99 C
1968	-0.8 C	-2.05 C
1969	-2.0 C	-3.27 C
1970	1.2 C	-0.12 C
1971	0.2 C	-1.07 C
1972	0.9 C	-0.40 C
1973	0.7 C	-0.62 C
1974	2.2 C	+0.95 C
1976	-0.2 C	-1.48 C
1977	1.2 C	-0.05 C
1978	-0.6 C	-1.89 C
1979	0.2 C	-1.12 C
1981	2.9 C	+1.66 C
1982	1.0 C	-0.30 C
1984	0.9 C	-0.35 C
1985	-0.2 C	-1.47 C
1986	-0.1 C	-1.41 C
1987	-0.1 C	-1.41 C
1988	1.6 C	+0.32 C
1989	2.2 C	+0.93 C
1990	2.0 C	+0.70 C
1991	2.2 C	+0.96 C
1992	0.8 C	-0.46 C
1993	1.0 C	-0.24 C
1994	1.3 C	+0.01 C
1995	3.2 C	+1.95 C
1996	1.2 C	-0.07 C
1997	0.5 C	-0.81 C
1998	0.8 C	-0.46 C
1999	1.1 C	-0.19 C
2000	2.4 C	+1.14 C
2001	1.1 C	-0.14 C
2002	0.7 C	-0.57 C
2003	2.7 C	+1.38 C
2004	2.3 C	+1.02 C
2005	3.1 C	+1.78 C
2006	1.3 C	+0.02 C
2007	2.5 C	+1.26 C
2008	3.4 C	+2.11 C
2009	1.8 C	+0.53 C
2010	1.2 C	-0.05 C
2011	2.0 C	+0.74 C
2012	1.7 C	+0.38 C
2013	2.3 C	+1.01 C
2014	1.8 C	+0.51 C
2015	3.0 C	+1.73 C
2016	2.5 C	+1.25 C
2017	2.5 C	+1.26 C
2018	1.8 C	+0.48 C

The annual mean temperature here has risen by 0.4 C (0.2 to 0.5) per decade over 1960 to 2018. In Fahrenheit: 0.7 F (0.4 to 0.9) per decade. The slope is a straight line fitted to 56 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Koigorodok
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.4 C (0.2 to 0.5) per decade	0.7 F (0.4 to 0.9) per decade	1960 to 2018	56	Rise
Mean daily maximum	0.3 C (0.2 to 0.5) per decade	0.6 F (0.3 to 0.8) per decade	1960 to 2018	56	Rise
Mean daily minimum	0.4 C (0.3 to 0.6) per decade	0.8 F (0.5 to 1.1) per decade	1960 to 2018	56	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

1959 to 2019

Yearly extremes at Koigorodok: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	37.0 C (98.6 F)	2010	31.5 C (88.7 F)	61
Coldest night (TNn)	-51.4 C (-60.5 F)	1978	-40.5 C (-40.9 F)	61
Wettest day (Rx1day)	94.0 mm (3.7 in)	2008	30.9 mm (1.2 in)	61
Wettest five days (Rx5day)	146.7 mm (5.8 in)	2008	49.7 mm (2.0 in)	61
Longest dry spell (CDD)	57 days	1984	18 days	61

Hottest day (TXx)

The hottest day of the year at Koigorodok, 1959 to 2019. The record is 37.0 C (98.6 F) in 2010, marked on the chart; the median year is 31.5 C (88.7 F).

Hottest day (TXx) at Koigorodok by year
Year	Hottest day (TXx)
1959	32.7 C (90.9 F)
1960	30.8 C (87.4 F)
1961	30.8 C (87.4 F)
1962	30.4 C (86.7 F)
1963	34.1 C (93.4 F)
1964	33.8 C (92.8 F)
1965	30.2 C (86.4 F)
1966	31.0 C (87.8 F)
1967	29.9 C (85.8 F)
1968	31.0 C (87.8 F)
1969	31.1 C (88.0 F)
1970	30.4 C (86.7 F)
1971	28.7 C (83.7 F)
1972	33.8 C (92.8 F)
1973	31.5 C (88.7 F)
1974	31.2 C (88.2 F)
1975	29.8 C (85.6 F)
1976	29.6 C (85.3 F)
1977	29.9 C (85.8 F)
1978	30.1 C (86.2 F)
1979	28.7 C (83.7 F)
1980	28.8 C (83.8 F)
1981	31.7 C (89.1 F)
1982	34.2 C (93.6 F)
1983	30.6 C (87.1 F)
1984	31.0 C (87.8 F)
1985	34.7 C (94.5 F)
1986	30.2 C (86.4 F)
1987	32.4 C (90.3 F)
1988	33.2 C (91.8 F)
1989	33.4 C (92.1 F)
1990	31.4 C (88.5 F)
1991	33.3 C (91.9 F)
1992	28.4 C (83.1 F)
1993	28.0 C (82.4 F)
1994	27.1 C (80.8 F)
1995	30.3 C (86.5 F)
1996	33.1 C (91.6 F)
1997	28.7 C (83.7 F)
1998	33.0 C (91.4 F)
1999	32.2 C (90.0 F)
2000	33.1 C (91.6 F)
2001	33.1 C (91.6 F)
2002	33.0 C (91.4 F)
2003	32.0 C (89.6 F)
2004	32.3 C (90.1 F)
2005	31.5 C (88.7 F)
2006	31.2 C (88.2 F)
2007	31.5 C (88.7 F)
2008	31.8 C (89.2 F)
2009	32.6 C (90.7 F)
2010	37.0 C (98.6 F)
2011	33.4 C (92.1 F)
2012	32.7 C (90.9 F)
2013	33.4 C (92.1 F)
2014	32.1 C (89.8 F)
2015	33.6 C (92.5 F)
2016	31.9 C (89.4 F)
2017	31.0 C (87.8 F)
2018	32.9 C (91.2 F)
2019	30.5 C (86.9 F)

Coldest night (TNn)

The coldest night of the year at Koigorodok, 1959 to 2019. The record is -51.4 C (-60.5 F) in 1978, marked on the chart; the median year is -40.5 C (-40.9 F).

Coldest night (TNn) at Koigorodok by year
Year	Coldest night (TNn)
1959	-33.3 C (-27.9 F)
1960	-43.0 C (-45.4 F)
1961	-36.2 C (-33.2 F)
1962	-36.4 C (-33.5 F)
1963	-44.1 C (-47.4 F)
1964	-42.2 C (-44.0 F)
1965	-38.7 C (-37.7 F)
1966	-47.4 C (-53.3 F)
1967	-45.9 C (-50.6 F)
1968	-43.7 C (-46.7 F)
1969	-45.6 C (-50.1 F)
1970	-44.7 C (-48.5 F)
1971	-39.1 C (-38.4 F)
1972	-46.0 C (-50.8 F)
1973	-47.8 C (-54.0 F)
1974	-37.4 C (-35.3 F)
1975	-39.4 C (-38.9 F)
1976	-45.7 C (-50.3 F)
1977	-42.7 C (-44.9 F)
1978	-51.4 C (-60.5 F)
1979	-47.2 C (-53.0 F)
1980	-46.9 C (-52.4 F)
1981	-39.4 C (-38.9 F)
1982	-43.2 C (-45.8 F)
1983	-36.2 C (-33.2 F)
1984	-39.9 C (-39.8 F)
1985	-42.0 C (-43.6 F)
1986	-45.8 C (-50.4 F)
1987	-47.8 C (-54.0 F)
1988	-36.1 C (-33.0 F)
1989	-40.9 C (-41.6 F)
1990	-43.1 C (-45.6 F)
1991	-43.3 C (-45.9 F)
1992	-35.7 C (-32.3 F)
1993	-35.5 C (-31.9 F)
1994	-39.6 C (-39.3 F)
1995	-39.6 C (-39.3 F)
1996	-37.8 C (-36.0 F)
1997	-40.5 C (-40.9 F)
1998	-42.6 C (-44.7 F)
1999	-45.8 C (-50.4 F)
2000	-37.2 C (-35.0 F)
2001	-37.9 C (-36.2 F)
2002	-41.9 C (-43.4 F)
2003	-39.4 C (-38.9 F)
2004	-35.1 C (-31.2 F)
2005	-33.4 C (-28.1 F)
2006	-42.1 C (-43.8 F)
2007	-36.9 C (-34.4 F)
2008	-33.3 C (-27.9 F)
2009	-43.5 C (-46.3 F)
2010	-41.7 C (-43.1 F)
2011	-38.8 C (-37.8 F)
2012	-36.8 C (-34.2 F)
2013	-39.7 C (-39.5 F)
2014	-40.7 C (-41.3 F)
2015	-39.8 C (-39.6 F)
2016	-39.4 C (-38.9 F)
2017	-43.5 C (-46.3 F)
2018	-33.4 C (-28.1 F)
2019	-32.6 C (-26.7 F)

Wettest day (Rx1day)

The wettest day of the year at Koigorodok, 1959 to 2019. The record is 94.0 mm (3.7 in) in 2008, marked on the chart; the median year is 30.9 mm (1.2 in).

Wettest day (Rx1day) at Koigorodok by year
Year	Wettest day (Rx1day)
1959	16.9 mm (0.7 in)
1960	40.6 mm (1.6 in)
1961	21.1 mm (0.8 in)
1962	17.8 mm (0.7 in)
1963	63.5 mm (2.5 in)
1964	31.7 mm (1.2 in)
1965	64.0 mm (2.5 in)
1966	32.2 mm (1.3 in)
1967	26.4 mm (1.0 in)
1968	42.5 mm (1.7 in)
1969	36.7 mm (1.4 in)
1970	54.8 mm (2.2 in)
1971	32.6 mm (1.3 in)
1972	26.3 mm (1.0 in)
1973	25.4 mm (1.0 in)
1974	30.6 mm (1.2 in)
1975	46.7 mm (1.8 in)
1976	24.2 mm (1.0 in)
1977	26.9 mm (1.1 in)
1978	29.0 mm (1.1 in)
1979	22.7 mm (0.9 in)
1980	21.7 mm (0.9 in)
1981	27.1 mm (1.1 in)
1982	46.0 mm (1.8 in)
1983	27.3 mm (1.1 in)
1984	60.9 mm (2.4 in)
1985	40.6 mm (1.6 in)
1986	30.0 mm (1.2 in)
1987	22.4 mm (0.9 in)
1988	29.1 mm (1.1 in)
1989	31.2 mm (1.2 in)
1990	22.4 mm (0.9 in)
1991	22.4 mm (0.9 in)
1992	28.8 mm (1.1 in)
1993	47.2 mm (1.9 in)
1994	33.4 mm (1.3 in)
1995	21.9 mm (0.9 in)
1996	26.1 mm (1.0 in)
1997	60.6 mm (2.4 in)
1998	45.2 mm (1.8 in)
1999	23.8 mm (0.9 in)
2000	30.7 mm (1.2 in)
2001	50.4 mm (2.0 in)
2002	22.1 mm (0.9 in)
2003	30.1 mm (1.2 in)
2004	37.0 mm (1.5 in)
2005	32.7 mm (1.3 in)
2006	30.9 mm (1.2 in)
2007	50.2 mm (2.0 in)
2008	94.0 mm (3.7 in)
2009	22.8 mm (0.9 in)
2010	28.8 mm (1.1 in)
2011	36.7 mm (1.4 in)
2012	41.5 mm (1.6 in)
2013	34.0 mm (1.3 in)
2014	43.1 mm (1.7 in)
2015	45.8 mm (1.8 in)
2016	57.9 mm (2.3 in)
2017	25.2 mm (1.0 in)
2018	42.1 mm (1.7 in)
2019	15.2 mm (0.6 in)

Wettest five days (Rx5day)

The wettest five days of the year at Koigorodok, 1959 to 2019. The record is 146.7 mm (5.8 in) in 2008, marked on the chart; the median year is 49.7 mm (2.0 in).

Wettest five days (Rx5day) at Koigorodok by year
Year	Wettest five days (Rx5day)
1959	37.6 mm (1.5 in)
1960	40.9 mm (1.6 in)
1961	37.4 mm (1.5 in)
1962	49.7 mm (2.0 in)
1963	81.0 mm (3.2 in)
1964	52.0 mm (2.0 in)
1965	84.1 mm (3.3 in)
1966	44.5 mm (1.8 in)
1967	48.5 mm (1.9 in)
1968	89.4 mm (3.5 in)
1969	43.3 mm (1.7 in)
1970	76.7 mm (3.0 in)
1971	63.9 mm (2.5 in)
1972	35.4 mm (1.4 in)
1973	49.9 mm (2.0 in)
1974	51.0 mm (2.0 in)
1975	50.9 mm (2.0 in)
1976	43.7 mm (1.7 in)
1977	38.3 mm (1.5 in)
1978	46.9 mm (1.8 in)
1979	32.1 mm (1.3 in)
1980	49.2 mm (1.9 in)
1981	61.0 mm (2.4 in)
1982	51.8 mm (2.0 in)
1983	49.6 mm (2.0 in)
1984	79.8 mm (3.1 in)
1985	70.1 mm (2.8 in)
1986	43.0 mm (1.7 in)
1987	39.6 mm (1.6 in)
1988	48.3 mm (1.9 in)
1989	45.1 mm (1.8 in)
1990	44.7 mm (1.8 in)
1991	34.5 mm (1.4 in)
1992	49.6 mm (2.0 in)
1993	62.7 mm (2.5 in)
1994	52.6 mm (2.1 in)
1995	43.2 mm (1.7 in)
1996	45.2 mm (1.8 in)
1997	73.4 mm (2.9 in)
1998	77.7 mm (3.1 in)
1999	34.7 mm (1.4 in)
2000	85.0 mm (3.3 in)
2001	97.3 mm (3.8 in)
2002	41.1 mm (1.6 in)
2003	51.9 mm (2.0 in)
2004	59.2 mm (2.3 in)
2005	43.6 mm (1.7 in)
2006	57.4 mm (2.3 in)
2007	98.9 mm (3.9 in)
2008	146.7 mm (5.8 in)
2009	38.0 mm (1.5 in)
2010	73.5 mm (2.9 in)
2011	39.7 mm (1.6 in)
2012	66.0 mm (2.6 in)
2013	48.0 mm (1.9 in)
2014	64.0 mm (2.5 in)
2015	54.7 mm (2.2 in)
2016	58.5 mm (2.3 in)
2017	48.9 mm (1.9 in)
2018	95.8 mm (3.8 in)
2019	35.2 mm (1.4 in)

Longest dry spell (CDD)

The longest dry spell of the year at Koigorodok, 1959 to 2019. The record is 57 days in 1984, marked on the chart; the median year is 18 days.

Longest dry spell (CDD) at Koigorodok by year
Year	Longest dry spell (CDD)
1959	9 days
1960	16 days
1961	17 days
1962	14 days
1963	19 days
1964	15 days
1965	20 days
1966	23 days
1967	17 days
1968	15 days
1969	30 days
1970	25 days
1971	20 days
1972	24 days
1973	27 days
1974	23 days
1975	18 days
1976	29 days
1977	10 days
1978	13 days
1979	18 days
1980	16 days
1981	15 days
1982	17 days
1983	17 days
1984	57 days
1985	18 days
1986	30 days
1987	25 days
1988	23 days
1989	20 days
1990	16 days
1991	15 days
1992	19 days
1993	30 days
1994	20 days
1995	18 days
1996	36 days
1997	17 days
1998	17 days
1999	14 days
2000	21 days
2001	16 days
2002	34 days
2003	29 days
2004	22 days
2005	20 days
2006	14 days
2007	17 days
2008	16 days
2009	17 days
2010	27 days
2011	26 days
2012	35 days
2013	21 days
2014	11 days
2015	15 days
2016	17 days
2017	16 days
2018	12 days
2019	12 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

56 years with a frost

Across 56 years with a frost, the median last spring frost at Koigorodok falls on 6 June and the median first autumn frost on 1 September, which leaves a median of 88 days between them.

Fitted over all years, the growing season changes by +3.3 days per decade at this station.

Frost dates and growing season at Koigorodok
Measure	Median, all years	Earliest period	Recent period (1989 to 2018)	Recent against earliest	Fitted trend
Last spring frost	6 June	n/a	31 May	n/a	-2.6 days per decade
First autumn frost	1 September	n/a	2 September	n/a	+0.7 days per decade
Growing days	88 days	n/a	94 days	n/a	+3.3 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

59 years, 1960 to 2018

A day with at least 32.3 mm (1.3 in) of rain is expected about once in 2 years. A day with at least 91.4 mm (3.6 in) of rain is expected about once in 100 years.

Rainfall return levels at Koigorodok: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	32.3 mm (1.3 in)
5 years	44.2 mm (1.7 in)
10 years	53.4 mm (2.1 in)
25 years	66.9 mm (2.6 in)
50 years	78.5 mm (3.1 in)
100 years	91.4 mm (3.6 in)	Longer than the 59 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, 59 years of values from 1960 to 2018.

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: 94.0 mm (3.7 in) in 2008; 64.0 mm (2.5 in) in 1965; 63.5 mm (2.5 in) in 1963.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Climate Twins

2004 to 2018 against 1961 to 1990

Over 2004 to 2018, Koigorodok had a mean temperature of 2.2 C (36.0 F) and 649.6 mm (25.6 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Nikolsk (Russia, 323 km away), Kumeny (Russia, 268 km away) and Tot-Ma (Russia, 457 km away).

Climate twins of Koigorodok: stations whose 1961 to 1990 climate is closest to its 2004 to 2018 climate
Twin station	Country	Distance away	Mean temperature, 1961-1990	Rain a year, 1961-1990	Climate difference
Nikolsk	Russia	323 km (201 mi)	2.0 C (35.7 F)	598.5 mm (23.6 in)	0.54
Kumeny	Russia	268 km (167 mi)	2.3 C (36.2 F)	556.8 mm (21.9 in)	0.66
Tot-Ma	Russia	457 km (284 mi)	2.1 C (35.7 F)	619.6 mm (24.4 in)	0.68

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 Koigorodok standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Koigorodok 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 2025-12-31. Last revised 31 December 2025 (2025-12-31).