Ersov Weather Records (RSM00034186)

Record envelope, standing records and threshold days for Ersov (RSM00034186), Russia, with 89 years of record.

Key Facts for Ersov

Ersov (RSM00034186) is a weather station in Russia at 51.33 latitude and 48.35 longitude, 106 m (348 ft) above sea level.
The station reports from 1936 to 2024, 89 years of record.
1,464 records set at Ersov still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Ersov set a daily record high minimum temperature of 22.5 C (72.5 F) on 18 June 2024.

About the Station

Location: Russia, 51.33 latitude, 48.35 longitude.
Elevation: 106 m (348 ft).
Period of record: 1936 to 2024, 89 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 Ersov. 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 Ersov, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	7.3 C (45.1 F)	-40.7 C (-41.3 F)	n/a	n/a
Feb	8.4 C (47.1 F)	-35.8 C (-32.4 F)	n/a	n/a
Mar	20.1 C (68.2 F)	-30.7 C (-23.3 F)	n/a	n/a
Apr	30.5 C (86.9 F)	-19.0 C (-2.2 F)	n/a	n/a
May	35.6 C (96.1 F)	-4.6 C (23.7 F)	n/a	n/a
Jun	40.1 C (104.2 F)	-0.6 C (30.9 F)	n/a	n/a
Jul	41.5 C (106.7 F)	6.0 C (42.8 F)	n/a	n/a
Aug	41.2 C (106.2 F)	1.9 C (35.4 F)	n/a	n/a
Sep	36.1 C (97.0 F)	-6.2 C (20.8 F)	n/a	n/a
Oct	26.8 C (80.2 F)	-15.0 C (5.0 F)	n/a	n/a
Nov	17.7 C (63.9 F)	-28.9 C (-20.0 F)	n/a	n/a
Dec	8.6 C (47.5 F)	-35.8 C (-32.4 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Ersov still stand. 2010 holds the most, with 57.

Standing records at Ersov by the year they were set
Year set	Standing records
1936	5
1937	5
1938	13
1940	20
1941	22
1942	33
1943	9
1944	4
1945	8
1947	8
1948	12
1949	6
1950	2
1951	20
1952	19
1953	22
1954	27
1955	13
1956	27
1957	30
1958	27
1959	11
1960	21
1961	12
1962	10
1963	30
1964	12
1965	12
1966	14
1967	32
1968	17
1969	18
1970	14
1971	29
1972	10
1973	16
1974	7
1975	31
1976	37
1977	18
1978	16
1979	34
1980	11
1981	16
1982	21
1983	11
1984	19
1985	6
1986	13
1987	15
1988	6
1989	12
1990	16
1991	10
1992	4
1993	10
1994	24
1995	18
1996	20
1997	15
1998	31
1999	14
2000	21
2001	19
2002	47
2003	12
2004	13
2005	5
2006	19
2007	38
2008	22
2009	12
2010	57
2011	7
2012	34
2013	10
2014	12
2015	33
2016	17
2017	5
2018	12
2019	10
2020	29
2021	4
2024	1

All-Time Record Progression

2 new records

2 all-time records were set at Ersov between 17 June 1990 and 6 June 1991. Each dot is a new record.

When Ersov set new all-time records
Date	Kind	Detail
1990-06-17	Record daily precipitation	Record daily precipitation 51.5 mm (2.0 in)
1991-06-06	Record daily precipitation	Record daily precipitation 62.4 mm (2.5 in)

Wettest Day of Each Month

Jun: 62.4 mm (2.5 in)

The wettest day on record for each calendar month at Ersov. The most was 62.4 mm (2.5 in) on 6 June 1991.

Record daily precipitation for each month at Ersov
Month	Record daily precipitation (mm)	Date
Jan	20.2 mm (0.8 in)	11 January 1984
Feb	18.8 mm (0.7 in)	12 February 1977
Mar	30.2 mm (1.2 in)	30 March 2014
Apr	28.7 mm (1.1 in)	5 April 2006
May	31.5 mm (1.2 in)	29 May 1967
Jun	62.4 mm (2.5 in)	6 June 1991
Jul	42.3 mm (1.7 in)	9 July 2003
Aug	42.8 mm (1.7 in)	24 August 1952
Sep	46.1 mm (1.8 in)	22 September 2000
Oct	39.4 mm (1.6 in)	8 October 2006
Nov	23.1 mm (0.9 in)	14 November 1981
Dec	21.1 mm (0.8 in)	17 December 2000

Period of Record Coverage

1936 to 2022

87 years of record at Ersov, 1936 to 2022. 23 years have data for under 90 percent of days and are left out of rankings: 1936, 1937, 1938, 1939, 1940, 1941, 1942, 1943 and others.

Days with data per year at Ersov
Year	Days with data	Share of year	Complete
1936	190	52%	No
1937	72	20%	No
1938	137	38%	No
1939	183	50%	No
1940	169	46%	No
1941	189	52%	No
1942	171	47%	No
1943	123	34%	No
1944	128	35%	No
1945	148	41%	No
1946	125	34%	No
1947	146	40%	No
1948	181	49%	No
1949	136	37%	No
1950	135	37%	No
1951	331	91%	Yes
1952	338	92%	Yes
1953	353	97%	Yes
1954	325	89%	No
1955	342	94%	Yes
1956	359	98%	Yes
1957	358	98%	Yes
1958	361	99%	Yes
1959	358	98%	Yes
1960	359	98%	Yes
1961	215	59%	No
1962	363	99%	Yes
1963	360	99%	Yes
1964	355	97%	Yes
1965	336	92%	Yes
1966	315	86%	No
1967	362	99%	Yes
1968	363	99%	Yes
1969	365	100%	Yes
1970	364	100%	Yes
1971	365	100%	Yes
1972	359	98%	Yes
1973	350	96%	Yes
1974	296	81%	No
1975	365	100%	Yes
1976	363	99%	Yes
1977	365	100%	Yes
1978	365	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	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	238	65%	No
2020	148	40%	No
2021	129	35%	No
2022	81	22%	No

Latest Records

Latest records at Ersov
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 June 2024	Ersov, RU	daily high min	22.5 C (72.5 F)	0.3 C (0.5 F)	69 years	28 of 100 (Routine)
15 April 2022	Ersov, RU	daily rain	6.6 mm (0.26 in)	0.1 mm (0.00 in)	41 years	20 of 100 (Routine)
5 March 2022	Ersov, RU	daily rain	10.9 mm (0.4 in)	1.8 mm (0.07 in)	17 years	18 of 100 (Routine)
10 February 2022	Ersov, RU	daily rain	7.1 mm (0.28 in)	1.9 mm (0.07 in)	51 years	20 of 100 (Routine)
26 December 2021	Ersov, RU	daily rain	11.9 mm (0.5 in)	5.5 mm (0.22 in)	38 years	20 of 100 (Routine)
24 December 2021	Ersov, RU	daily low min	-28.6 C (-19.5 F)	2.4 C (4.3 F)	66 years	30 of 100 (Routine)
18 December 2021	Ersov, RU	daily rain	13.0 mm (0.5 in)	1.1 mm (0.04 in)	58 years	20 of 100 (Routine)
11 April 2021	Ersov, RU	daily high min	9.8 C (49.6 F)	0.9 C (1.6 F)	46 years	22 of 100 (Routine)
24 March 2021	Ersov, RU	daily rain	9.4 mm (0.37 in)	1.5 mm (0.06 in)	60 years	20 of 100 (Routine)
23 February 2021	Ersov, RU	daily low max	-21.9 C (-7.4 F)	1.2 C (2.2 F)	76 years	31 of 100 (Routine)
4 February 2021	Ersov, RU	daily high min	0.0 C (32.0 F)	0.3 C (0.5 F)	5 years	9 of 100 (Routine)
9 January 2021	Ersov, RU	daily rain	11.4 mm (0.4 in)	3.1 mm (0.12 in)	5 years	20 of 100 (Routine)
27 December 2020	Ersov, RU	daily rain	10.9 mm (0.4 in)	3.5 mm (0.14 in)	25 years	20 of 100 (Routine)
2 December 2020	Ersov, RU	daily low max	-16.8 C (1.8 F)	2.1 C (3.8 F)	10 years	14 of 100 (Routine)
21 April 2020	Ersov, RU	daily rain	18.0 mm (0.7 in)	9.6 mm (0.38 in)	46 years	20 of 100 (Routine)
31 March 2020	Ersov, RU	daily high max	18.9 C (66.0 F)	0.6 C (1.1 F)	69 years	29 of 100 (Routine)
29 March 2020	Ersov, RU	daily high max	18.0 C (64.4 F)	0.6 C (1.1 F)	11 years	12 of 100 (Routine)
24 March 2020	Ersov, RU	daily rain (Tie)	7.9 mm (0.31 in)	tie	59 years	6 of 100 (Routine)
23 March 2020	Ersov, RU	daily rain	24.9 mm (1.0 in)	14.4 mm (0.6 in)	68 years	20 of 100 (Routine)
19 March 2020	Ersov, RU	daily high max	12.8 C (55.0 F)	2.4 C (4.3 F)	18 years	17 of 100 (Routine)

Climate Trend

61 complete years, 1952 to 2018

One stripe for each of 61 complete years at Ersov, 1952 to 2018. Blue stripes are years cooler than the station's own mean of 6.0 C (42.8 F); red stripes are warmer. The coolest year was 1976, at 3.4 C (38.1 F), and the warmest was 1995, at 8.3 C (46.9 F). The strongest colour marks a difference of 2.7 C (4.9 F).

Annual mean temperature at Ersov as warming stripes, 1952 to 2018
Year	Annual mean temperature	Difference from the station mean
1952	4.9 C	-1.10 C
1953	4.8 C	-1.19 C
1954	4.8 C	-1.22 C
1955	6.0 C	+0.07 C
1956	3.4 C	-2.58 C
1957	6.7 C	+0.77 C
1958	5.1 C	-0.84 C
1959	3.9 C	-2.05 C
1962	6.5 C	+0.48 C
1963	4.7 C	-1.26 C
1964	4.5 C	-1.48 C
1967	6.0 C	-0.02 C
1968	4.8 C	-1.22 C
1969	3.7 C	-2.24 C
1970	5.2 C	-0.79 C
1971	6.1 C	+0.09 C
1972	6.1 C	+0.16 C
1975	7.7 C	+1.70 C
1976	3.4 C	-2.60 C
1977	5.7 C	-0.30 C
1978	4.8 C	-1.13 C
1979	6.1 C	+0.11 C
1980	4.9 C	-1.06 C
1981	7.0 C	+1.02 C
1982	6.3 C	+0.32 C
1983	7.3 C	+1.36 C
1984	5.8 C	-0.13 C
1985	5.4 C	-0.53 C
1986	5.5 C	-0.46 C
1987	3.7 C	-2.26 C
1988	5.4 C	-0.56 C
1989	6.7 C	+0.72 C
1990	6.8 C	+0.85 C
1991	6.4 C	+0.45 C
1992	5.5 C	-0.50 C
1993	4.4 C	-1.54 C
1994	4.8 C	-1.15 C
1995	8.3 C	+2.28 C
1996	5.2 C	-0.81 C
1997	5.8 C	-0.16 C
1998	5.9 C	-0.04 C
1999	6.7 C	+0.75 C
2000	7.4 C	+1.39 C
2001	7.2 C	+1.21 C
2002	7.0 C	+0.99 C
2003	5.7 C	-0.29 C
2004	7.4 C	+1.40 C
2005	6.9 C	+0.94 C
2006	6.3 C	+0.37 C
2007	7.4 C	+1.43 C
2008	7.3 C	+1.32 C
2009	6.7 C	+0.70 C
2010	7.8 C	+1.79 C
2011	5.6 C	-0.42 C
2012	7.4 C	+1.40 C
2013	7.6 C	+1.59 C
2014	6.3 C	+0.29 C
2015	7.7 C	+1.70 C
2016	7.3 C	+1.32 C
2017	7.0 C	+1.03 C
2018	6.1 C	+0.08 C

The annual mean temperature here has risen by 0.4 C (0.2 to 0.5) per decade over 1952 to 2018. In Fahrenheit: 0.6 F (0.4 to 0.9) per decade. The slope is a straight line fitted to 61 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Ersov
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.4 C (0.2 to 0.5) per decade	0.6 F (0.4 to 0.9) per decade	1952 to 2018	61	Rise
Mean daily maximum	0.3 C (0.2 to 0.5) per decade	0.6 F (0.4 to 0.9) per decade	1952 to 2018	61	Rise
Mean daily minimum	0.4 C (0.2 to 0.5) per decade	0.7 F (0.4 to 0.9) per decade	1952 to 2018	61	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 2024

Yearly extremes at Ersov: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	41.5 C (106.7 F)	1971	36.4 C (97.5 F)	87
Coldest night (TNn)	-40.7 C (-41.3 F)	1942	-29.6 C (-21.4 F)	88
Wettest day (Rx1day)	62.4 mm (2.5 in)	1991	24.5 mm (1.0 in)	87
Wettest five days (Rx5day)	84.6 mm (3.3 in)	2011	38.3 mm (1.5 in)	87
Longest dry spell (CDD)	67 days	1998	28 days	87

Hottest day (TXx)

The hottest day of the year at Ersov, 1936 to 2024. The record is 41.5 C (106.7 F) in 1971, marked on the chart; the median year is 36.4 C (97.5 F).

Hottest day (TXx) at Ersov by year
Year	Hottest day (TXx)
1936	34.3 C (93.7 F)
1937	31.9 C (89.4 F)
1938	31.2 C (88.2 F)
1939	31.2 C (88.2 F)
1940	40.7 C (105.3 F)
1941	34.9 C (94.8 F)
1942	24.2 C (75.6 F)
1943	29.9 C (85.8 F)
1944	29.3 C (84.7 F)
1945	14.5 C (58.1 F)
1946	19.7 C (67.5 F)
1947	18.6 C (65.5 F)
1948	31.8 C (89.2 F)
1949	34.6 C (94.3 F)
1950	25.9 C (78.6 F)
1951	36.6 C (97.9 F)
1952	40.6 C (105.1 F)
1953	36.9 C (98.4 F)
1954	40.0 C (104.0 F)
1955	39.6 C (103.3 F)
1956	36.5 C (97.7 F)
1957	38.8 C (101.8 F)
1958	35.1 C (95.2 F)
1959	37.2 C (99.0 F)
1960	37.9 C (100.2 F)
1961	33.9 C (93.0 F)
1962	40.2 C (104.4 F)
1963	34.8 C (94.6 F)
1964	31.5 C (88.7 F)
1965	37.9 C (100.2 F)
1966	38.0 C (100.4 F)
1967	34.4 C (93.9 F)
1968	36.0 C (96.8 F)
1969	36.4 C (97.5 F)
1970	37.1 C (98.8 F)
1971	41.5 C (106.7 F)
1972	39.2 C (102.6 F)
1973	34.0 C (93.2 F)
1974	36.0 C (96.8 F)
1975	39.5 C (103.1 F)
1976	35.6 C (96.1 F)
1977	36.0 C (96.8 F)
1978	33.5 C (92.3 F)
1979	35.7 C (96.3 F)
1980	34.3 C (93.7 F)
1981	39.1 C (102.4 F)
1982	36.2 C (97.2 F)
1983	35.8 C (96.4 F)
1984	40.5 C (104.9 F)
1985	35.6 C (96.1 F)
1986	36.0 C (96.8 F)
1987	37.8 C (100.0 F)
1988	36.8 C (98.2 F)
1989	33.2 C (91.8 F)
1990	35.5 C (95.9 F)
1991	38.5 C (101.3 F)
1992	35.0 C (95.0 F)
1993	34.6 C (94.3 F)
1994	35.7 C (96.3 F)
1995	37.3 C (99.1 F)
1996	37.5 C (99.5 F)
1997	34.2 C (93.6 F)
1998	39.9 C (103.8 F)
1999	36.9 C (98.4 F)
2000	40.1 C (104.2 F)
2001	38.6 C (101.5 F)
2002	38.7 C (101.7 F)
2003	36.0 C (96.8 F)
2004	37.7 C (99.9 F)
2005	37.6 C (99.7 F)
2006	36.2 C (97.2 F)
2007	38.1 C (100.6 F)
2008	37.3 C (99.1 F)
2009	38.0 C (100.4 F)
2010	41.2 C (106.2 F)
2011	40.6 C (105.1 F)
2012	39.7 C (103.5 F)
2013	37.0 C (98.6 F)
2014	38.8 C (101.8 F)
2015	40.1 C (104.2 F)
2016	40.3 C (104.5 F)
2017	38.1 C (100.6 F)
2018	38.6 C (101.5 F)
2019	36.1 C (97.0 F)
2020	19.5 C (67.1 F)
2021	24.8 C (76.6 F)
2022	25.1 C (77.2 F)
2024	n/a

Coldest night (TNn)

The coldest night of the year at Ersov, 1936 to 2024. The record is -40.7 C (-41.3 F) in 1942, marked on the chart; the median year is -29.6 C (-21.4 F).

Coldest night (TNn) at Ersov by year
Year	Coldest night (TNn)
1936	-31.5 C (-24.7 F)
1937	-29.1 C (-20.4 F)
1938	-30.9 C (-23.6 F)
1939	-32.7 C (-26.9 F)
1940	-38.0 C (-36.4 F)
1941	-34.6 C (-30.3 F)
1942	-40.7 C (-41.3 F)
1943	-34.8 C (-30.6 F)
1944	-25.3 C (-13.5 F)
1945	-32.2 C (-26.0 F)
1946	-28.9 C (-20.0 F)
1947	-33.4 C (-28.1 F)
1948	-26.5 C (-15.7 F)
1949	-35.8 C (-32.4 F)
1950	-31.7 C (-25.1 F)
1951	-34.7 C (-30.5 F)
1952	-26.0 C (-14.8 F)
1953	-29.3 C (-20.7 F)
1954	-33.8 C (-28.8 F)
1955	-27.8 C (-18.0 F)
1956	-33.3 C (-27.9 F)
1957	-27.2 C (-17.0 F)
1958	-31.0 C (-23.8 F)
1959	-31.4 C (-24.5 F)
1960	-23.7 C (-10.7 F)
1961	-28.9 C (-20.0 F)
1962	-26.8 C (-16.2 F)
1963	-30.4 C (-22.7 F)
1964	-30.7 C (-23.3 F)
1965	-28.9 C (-20.0 F)
1966	-29.7 C (-21.5 F)
1967	-36.1 C (-33.0 F)
1968	-33.1 C (-27.6 F)
1969	-37.7 C (-35.9 F)
1970	-29.2 C (-20.6 F)
1971	-26.8 C (-16.2 F)
1972	-33.6 C (-28.5 F)
1973	-32.1 C (-25.8 F)
1974	-30.0 C (-22.0 F)
1975	-30.0 C (-22.0 F)
1976	-35.5 C (-31.9 F)
1977	-30.8 C (-23.4 F)
1978	-35.8 C (-32.4 F)
1979	-37.8 C (-36.0 F)
1980	-29.0 C (-20.2 F)
1981	-25.5 C (-13.9 F)
1982	-27.5 C (-17.5 F)
1983	-25.3 C (-13.5 F)
1984	-27.8 C (-18.0 F)
1985	-26.9 C (-16.4 F)
1986	-29.6 C (-21.3 F)
1987	-35.8 C (-32.4 F)
1988	-28.7 C (-19.7 F)
1989	-28.1 C (-18.6 F)
1990	-27.8 C (-18.0 F)
1991	-28.3 C (-18.9 F)
1992	-28.1 C (-18.6 F)
1993	-25.1 C (-13.2 F)
1994	-33.1 C (-27.6 F)
1995	-22.2 C (-8.0 F)
1996	-29.8 C (-21.6 F)
1997	-30.1 C (-22.2 F)
1998	-29.8 C (-21.6 F)
1999	-31.3 C (-24.3 F)
2000	-26.3 C (-15.3 F)
2001	-29.6 C (-21.3 F)
2002	-31.3 C (-24.3 F)
2003	-33.1 C (-27.6 F)
2004	-25.4 C (-13.7 F)
2005	-23.4 C (-10.1 F)
2006	-32.8 C (-27.0 F)
2007	-26.0 C (-14.8 F)
2008	-28.6 C (-19.5 F)
2009	-30.7 C (-23.3 F)
2010	-31.4 C (-24.5 F)
2011	-30.0 C (-22.0 F)
2012	-29.7 C (-21.5 F)
2013	-25.1 C (-13.2 F)
2014	-29.9 C (-21.8 F)
2015	-29.5 C (-21.1 F)
2016	-29.2 C (-20.6 F)
2017	-24.2 C (-11.6 F)
2018	-25.0 C (-13.0 F)
2019	-26.9 C (-16.4 F)
2020	-22.8 C (-9.0 F)
2021	-28.6 C (-19.5 F)
2022	-21.3 C (-6.3 F)
2024	19.8 C (67.6 F)

Wettest day (Rx1day)

The wettest day of the year at Ersov, 1936 to 2024. The record is 62.4 mm (2.5 in) in 1991, marked on the chart; the median year is 24.5 mm (1.0 in).

Wettest day (Rx1day) at Ersov by year
Year	Wettest day (Rx1day)
1936	22.2 mm (0.9 in)
1937	8.8 mm (0.35 in)
1938	13.5 mm (0.5 in)
1939	11.8 mm (0.5 in)
1940	19.2 mm (0.8 in)
1941	19.8 mm (0.8 in)
1942	11.7 mm (0.5 in)
1943	15.8 mm (0.6 in)
1944	5.7 mm (0.22 in)
1945	3.4 mm (0.13 in)
1946	10.1 mm (0.4 in)
1947	9.2 mm (0.36 in)
1948	21.4 mm (0.8 in)
1949	8.7 mm (0.34 in)
1950	8.2 mm (0.32 in)
1951	14.7 mm (0.6 in)
1952	42.8 mm (1.7 in)
1953	41.5 mm (1.6 in)
1954	23.6 mm (0.9 in)
1955	18.0 mm (0.7 in)
1956	19.4 mm (0.8 in)
1957	29.6 mm (1.2 in)
1958	23.4 mm (0.9 in)
1959	20.3 mm (0.8 in)
1960	23.4 mm (0.9 in)
1961	22.1 mm (0.9 in)
1962	33.5 mm (1.3 in)
1963	17.1 mm (0.7 in)
1964	28.1 mm (1.1 in)
1965	13.8 mm (0.5 in)
1966	42.2 mm (1.7 in)
1967	31.5 mm (1.2 in)
1968	34.0 mm (1.3 in)
1969	34.8 mm (1.4 in)
1970	27.3 mm (1.1 in)
1971	17.9 mm (0.7 in)
1972	21.0 mm (0.8 in)
1973	29.0 mm (1.1 in)
1974	20.1 mm (0.8 in)
1975	13.7 mm (0.5 in)
1976	30.6 mm (1.2 in)
1977	24.8 mm (1.0 in)
1978	36.6 mm (1.4 in)
1979	32.0 mm (1.3 in)
1980	26.9 mm (1.1 in)
1981	35.7 mm (1.4 in)
1982	27.7 mm (1.1 in)
1983	24.6 mm (1.0 in)
1984	22.5 mm (0.9 in)
1985	21.6 mm (0.9 in)
1986	32.6 mm (1.3 in)
1987	30.2 mm (1.2 in)
1988	39.4 mm (1.6 in)
1989	30.0 mm (1.2 in)
1990	51.5 mm (2.0 in)
1991	62.4 mm (2.5 in)
1992	29.6 mm (1.2 in)
1993	27.5 mm (1.1 in)
1994	22.9 mm (0.9 in)
1995	25.8 mm (1.0 in)
1996	30.7 mm (1.2 in)
1997	41.0 mm (1.6 in)
1998	17.5 mm (0.7 in)
1999	42.5 mm (1.7 in)
2000	46.1 mm (1.8 in)
2001	15.2 mm (0.6 in)
2002	19.8 mm (0.8 in)
2003	42.3 mm (1.7 in)
2004	32.5 mm (1.3 in)
2005	14.4 mm (0.6 in)
2006	39.4 mm (1.6 in)
2007	19.8 mm (0.8 in)
2008	40.8 mm (1.6 in)
2009	29.2 mm (1.1 in)
2010	16.3 mm (0.6 in)
2011	37.8 mm (1.5 in)
2012	23.4 mm (0.9 in)
2013	24.5 mm (1.0 in)
2014	30.2 mm (1.2 in)
2015	24.4 mm (1.0 in)
2016	37.8 mm (1.5 in)
2017	32.2 mm (1.3 in)
2018	27.9 mm (1.1 in)
2019	21.3 mm (0.8 in)
2020	24.9 mm (1.0 in)
2021	15.5 mm (0.6 in)
2022	10.9 mm (0.4 in)
2024	n/a

Wettest five days (Rx5day)

The wettest five days of the year at Ersov, 1936 to 2024. The record is 84.6 mm (3.3 in) in 2011, marked on the chart; the median year is 38.3 mm (1.5 in).

Wettest five days (Rx5day) at Ersov by year
Year	Wettest five days (Rx5day)
1936	33.6 mm (1.3 in)
1937	16.4 mm (0.6 in)
1938	22.9 mm (0.9 in)
1939	16.5 mm (0.6 in)
1940	33.8 mm (1.3 in)
1941	27.6 mm (1.1 in)
1942	20.2 mm (0.8 in)
1943	8.1 mm (0.32 in)
1944	11.8 mm (0.5 in)
1945	7.2 mm (0.28 in)
1946	7.6 mm (0.30 in)
1947	14.1 mm (0.6 in)
1948	28.4 mm (1.1 in)
1949	16.6 mm (0.7 in)
1950	10.9 mm (0.4 in)
1951	23.0 mm (0.9 in)
1952	47.8 mm (1.9 in)
1953	44.0 mm (1.7 in)
1954	33.4 mm (1.3 in)
1955	21.6 mm (0.9 in)
1956	34.2 mm (1.3 in)
1957	29.6 mm (1.2 in)
1958	38.2 mm (1.5 in)
1959	50.4 mm (2.0 in)
1960	31.0 mm (1.2 in)
1961	8.4 mm (0.33 in)
1962	39.2 mm (1.5 in)
1963	38.0 mm (1.5 in)
1964	50.3 mm (2.0 in)
1965	27.3 mm (1.1 in)
1966	48.7 mm (1.9 in)
1967	48.3 mm (1.9 in)
1968	39.8 mm (1.6 in)
1969	38.3 mm (1.5 in)
1970	29.8 mm (1.2 in)
1971	24.3 mm (1.0 in)
1972	56.2 mm (2.2 in)
1973	45.0 mm (1.8 in)
1974	32.3 mm (1.3 in)
1975	26.0 mm (1.0 in)
1976	51.8 mm (2.0 in)
1977	51.3 mm (2.0 in)
1978	52.2 mm (2.1 in)
1979	38.9 mm (1.5 in)
1980	37.3 mm (1.5 in)
1981	60.0 mm (2.4 in)
1982	60.3 mm (2.4 in)
1983	58.5 mm (2.3 in)
1984	42.6 mm (1.7 in)
1985	39.1 mm (1.5 in)
1986	48.4 mm (1.9 in)
1987	65.7 mm (2.6 in)
1988	39.4 mm (1.6 in)
1989	58.6 mm (2.3 in)
1990	54.7 mm (2.2 in)
1991	72.7 mm (2.9 in)
1992	35.5 mm (1.4 in)
1993	50.9 mm (2.0 in)
1994	60.5 mm (2.4 in)
1995	28.2 mm (1.1 in)
1996	39.1 mm (1.5 in)
1997	44.2 mm (1.7 in)
1998	30.6 mm (1.2 in)
1999	46.2 mm (1.8 in)
2000	53.7 mm (2.1 in)
2001	30.6 mm (1.2 in)
2002	34.5 mm (1.4 in)
2003	50.1 mm (2.0 in)
2004	56.5 mm (2.2 in)
2005	25.5 mm (1.0 in)
2006	46.2 mm (1.8 in)
2007	29.2 mm (1.1 in)
2008	51.0 mm (2.0 in)
2009	37.2 mm (1.5 in)
2010	34.0 mm (1.3 in)
2011	84.6 mm (3.3 in)
2012	24.4 mm (1.0 in)
2013	59.3 mm (2.3 in)
2014	42.4 mm (1.7 in)
2015	51.7 mm (2.0 in)
2016	52.6 mm (2.1 in)
2017	35.8 mm (1.4 in)
2018	46.9 mm (1.8 in)
2019	53.9 mm (2.1 in)
2020	46.8 mm (1.8 in)
2021	23.2 mm (0.9 in)
2022	15.8 mm (0.6 in)
2024	n/a

Longest dry spell (CDD)

The longest dry spell of the year at Ersov, 1936 to 2024. The record is 67 days in 1998, marked on the chart; the median year is 28 days.

Longest dry spell (CDD) at Ersov by year
Year	Longest dry spell (CDD)
1936	65 days
1937	19 days
1938	25 days
1939	34 days
1940	48 days
1941	25 days
1942	63 days
1943	30 days
1944	37 days
1945	27 days
1946	20 days
1947	18 days
1948	17 days
1949	37 days
1950	20 days
1951	29 days
1952	26 days
1953	28 days
1954	22 days
1955	24 days
1956	22 days
1957	41 days
1958	39 days
1959	36 days
1960	30 days
1961	8 days
1962	25 days
1963	27 days
1964	22 days
1965	33 days
1966	31 days
1967	29 days
1968	30 days
1969	30 days
1970	20 days
1971	44 days
1972	64 days
1973	19 days
1974	36 days
1975	45 days
1976	21 days
1977	26 days
1978	23 days
1979	26 days
1980	31 days
1981	47 days
1982	23 days
1983	31 days
1984	57 days
1985	33 days
1986	35 days
1987	35 days
1988	26 days
1989	30 days
1990	14 days
1991	30 days
1992	37 days
1993	36 days
1994	29 days
1995	19 days
1996	38 days
1997	20 days
1998	67 days
1999	21 days
2000	25 days
2001	39 days
2002	24 days
2003	31 days
2004	15 days
2005	37 days
2006	25 days
2007	34 days
2008	25 days
2009	27 days
2010	42 days
2011	28 days
2012	25 days
2013	24 days
2014	34 days
2015	27 days
2016	28 days
2017	25 days
2018	56 days
2019	54 days
2020	26 days
2021	19 days
2022	15 days
2024	n/a

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

61 years with a frost

Across 61 years with a frost, the median last spring frost at Ersov falls on 26 April and the median first autumn frost on 3 October, which leaves a median of 160 days between them.

In 1989 to 2018 the median growing season was 161 days. That is 1 day more than in 1952 to 1987.

Fitted over all years, the growing season changes by +0.6 days per decade at this station.

Frost dates and growing season at Ersov
Measure	Median, all years	Earliest period (1952 to 1987)	Recent period (1989 to 2018)	Recent against earliest	Fitted trend
Last spring frost	26 April	27 April	26 April	1 day earlier	-0.2 days per decade
First autumn frost	3 October	3 October	5 October	2 days later	+0.5 days per decade
Growing days	160 days	160 days	161 days	1 day more	+0.6 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

65 years, 1951 to 2018

A day with at least 27.7 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 56.5 mm (2.2 in) of rain is expected about once in 100 years.

Rainfall return levels at Ersov: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	27.7 mm (1.1 in)
5 years	36.6 mm (1.4 in)
10 years	41.9 mm (1.6 in)
25 years	48.2 mm (1.9 in)
50 years	52.5 mm (2.1 in)
100 years	56.5 mm (2.2 in)	Longer than the 65 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, 65 years of values from 1951 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: 62.4 mm (2.5 in) in 1991; 51.5 mm (2.0 in) in 1990; 46.1 mm (1.8 in) in 2000.

Station Changes

3 suspected

3 changes were suspected in the annual mean temperature of Ersov, at 1958, 1988 and 2000. Each is measured against neighbouring stations.

Relative to 5 neighbouring stations, the station's annual mean temperature from 1958 ran 0.3 C (0.5 F) lower than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 1988 ran 0.2 C (0.4 F) lower than in the years before (likely change).
Relative to 5 neighbouring stations, the station's annual mean temperature from 2000 ran 0.2 C (0.3 F) higher than in the years before (likely change).

Suspected changes in the annual mean temperature at Ersov, against neighbouring stations
Year	Shift (C)	Shift (F)	Strength	Neighbours
1958	-0.3	-0.5	likely	5
1988	-0.2	-0.4	likely	5
2000	+0.2	+0.3	likely	5

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, Ersov had a mean temperature of 7.0 C (44.5 F) and 371.7 mm (14.6 in) of rain a year. The 3 stations whose 1961 to 1990 climate was closest to that are Aleksandrov Gaj (Russia, 132 km away), Novouzensk (Russia, 105 km away) and Saratow (Russia, 163 km away).

Climate twins of Ersov: 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
Aleksandrov Gaj	Russia	132 km (82 mi)	6.8 C (44.2 F)	329.4 mm (13.0 in)	0.55
Novouzensk	Russia	105 km (65 mi)	6.5 C (43.6 F)	344.6 mm (13.6 in)	0.70
Saratow	Russia	163 km (101 mi)	6.7 C (44.0 F)	461.3 mm (18.2 in)	0.96

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 Ersov standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Ersov 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).