Birsk Weather Records (RSM00028621)

Record envelope, standing records and threshold days for Birsk (RSM00028621), Russia, with 90 years of record.

Key Facts for Birsk

Birsk (RSM00028621) is a weather station in Russia at 55.42 latitude and 55.53 longitude, 187 m (614 ft) above sea level.
The station reports from 1936 to 2025, 90 years of record.
1,464 records set at Birsk still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Birsk set a daily record precipitation of 29.5 mm (1.2 in) on 14 August 2025.

About the Station

Location: Russia, 55.42 latitude, 55.53 longitude.
Elevation: 187 m (614 ft).
Period of record: 1936 to 2025, 90 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

13 days at or beyond a record

The band shows the record high and record low for each calendar day at Birsk. The lines show the 2026 daily maximum and minimum. 13 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Birsk, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	4.7 C (40.5 F)	-47.0 C (-52.6 F)	1.9 C (35.4 F)	-22.4 C (-8.3 F)
Feb	11.0 C (51.8 F)	-39.0 C (-38.2 F)	2.8 C (37.0 F)	-20.3 C (-4.5 F)
Mar	13.1 C (55.6 F)	-31.1 C (-24.0 F)	11.3 C (52.3 F)	-14.5 C (5.9 F)
Apr	29.2 C (84.6 F)	-16.0 C (3.2 F)	25.0 C (77.0 F)	-5.8 C (21.6 F)
May	35.5 C (95.9 F)	-7.8 C (18.0 F)	31.4 C (88.5 F)	0.8 C (33.4 F)
Jun	36.9 C (98.4 F)	-0.3 C (31.5 F)	32.4 C (90.3 F)	8.5 C (47.3 F)
Jul	39.1 C (102.4 F)	0.0 C (32.0 F)	29.3 C (84.7 F)	7.9 C (46.2 F)
Aug	37.4 C (99.3 F)	1.3 C (34.3 F)	31.0 C (87.8 F)	11.2 C (52.2 F)
Sep	32.0 C (89.6 F)	-4.3 C (24.3 F)	n/a	n/a
Oct	23.7 C (74.7 F)	-17.8 C (0.0 F)	n/a	n/a
Nov	13.1 C (55.6 F)	-30.6 C (-23.1 F)	n/a	n/a
Dec	4.0 C (39.2 F)	-39.7 C (-39.5 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Birsk still stand. 2023 holds the most, with 55.

Standing records at Birsk by the year they were set
Year set	Standing records
1969	34
1970	10
1971	5
1973	31
1974	21
1975	31
1976	33
1977	16
1978	21
1979	38
1980	16
1981	28
1982	39
1983	20
1984	28
1985	13
1986	31
1987	23
1988	13
1989	17
1990	15
1991	26
1992	21
1993	28
1994	27
1995	33
1996	32
1997	19
1998	45
1999	36
2000	24
2001	11
2002	51
2003	12
2004	17
2005	18
2006	50
2007	27
2008	41
2009	33
2010	48
2011	29
2012	35
2013	19
2014	16
2015	11
2016	12
2017	13
2018	8
2019	24
2020	33
2021	51
2022	21
2023	55
2024	30
2025	25

All-Time Record Progression

7 new records

7 all-time records were set at Birsk between 21 October 1977 and 11 July 2023. Each dot is a new record.

When Birsk set new all-time records
Date	Kind	Detail
1977-10-21	Record daily precipitation	Record daily precipitation 58.9 mm (2.3 in)
1988-08-13	Record daily precipitation	Record daily precipitation 69.1 mm (2.7 in)
2010-08-12	Record high minimum temperature	Record high minimum temperature 24.5 C (76.1 F)
2020-07-16	Record high maximum temperature	Record high maximum temperature 37.0 C (98.6 F)
2021-08-21	Record high maximum temperature	Record high maximum temperature 37.4 C (99.3 F)
2023-07-10	Record high maximum temperature	Record high maximum temperature 39.1 C (102.4 F)
2023-07-11	Record high minimum temperature	Record high minimum temperature 26.8 C (80.2 F)

Wettest Day of Each Month

Aug: 69.1 mm (2.7 in)

The wettest day on record for each calendar month at Birsk. The most was 69.1 mm (2.7 in) on 13 August 1988.

Record daily precipitation for each month at Birsk
Month	Record daily precipitation (mm)	Date
Jan	15.7 mm (0.6 in)	3 January 1979
Feb	34.7 mm (1.4 in)	19 February 1955
Mar	20.1 mm (0.8 in)	18 March 2014
Apr	23.1 mm (0.9 in)	10 April 2025
May	34.4 mm (1.4 in)	22 May 1941
Jun	45.0 mm (1.8 in)	21 June 1996
Jul	58.1 mm (2.3 in)	19 July 1985
Aug	69.1 mm (2.7 in)	13 August 1988
Sep	34.6 mm (1.4 in)	16 September 1942
Oct	58.9 mm (2.3 in)	21 October 1977
Nov	30.5 mm (1.2 in)	10 November 1963
Dec	17.0 mm (0.7 in)	4 December 2017

Period of Record Coverage

1969 to 2025

56 years of record at Birsk, 1969 to 2025. 55 years have data for under 90 percent of days and are left out of rankings: 1969, 1970, 1971, 1973, 1974, 1975, 1976, 1977 and others.

Days with data per year at Birsk
Year	Days with data	Share of year	Complete
1969	30	8%	No
1970	86	24%	No
1971	63	17%	No
1973	153	42%	No
1974	253	69%	No
1975	272	75%	No
1976	263	72%	No
1977	257	70%	No
1978	292	80%	No
1979	291	80%	No
1980	301	82%	No
1981	272	75%	No
1982	312	85%	No
1983	313	86%	No
1984	324	89%	No
1985	309	85%	No
1986	315	86%	No
1987	318	87%	No
1988	306	84%	No
1989	321	88%	No
1990	300	82%	No
1991	295	81%	No
1992	253	69%	No
1993	314	86%	No
1994	313	86%	No
1995	262	72%	No
1996	319	87%	No
1997	296	81%	No
1998	310	85%	No
1999	317	87%	No
2000	329	90%	No
2001	300	82%	No
2002	293	80%	No
2003	296	81%	No
2004	309	84%	No
2005	323	88%	No
2006	302	83%	No
2007	316	87%	No
2008	336	92%	Yes
2009	321	88%	No
2010	310	85%	No
2011	311	85%	No
2012	323	88%	No
2013	106	29%	No
2014	16	4%	No
2015	148	41%	No
2016	123	34%	No
2017	292	80%	No
2018	300	82%	No
2019	288	79%	No
2020	305	83%	No
2021	310	85%	No
2022	312	85%	No
2023	316	87%	No
2024	305	83%	No
2025	210	58%	No

Latest Records

Latest records at Birsk
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
14 August 2025	Birsk, RU	daily rain	29.5 mm (1.2 in)	23.1 mm (0.9 in)	4 years	47 of 100 (Notable)
5 August 2025	Birsk, RU	daily high min	18.2 C (64.8 F)	0.2 C (0.4 F)	22 years	12 of 100 (Routine)
26 July 2025	Birsk, RU	daily low max	15.3 C (59.5 F)	0.3 C (0.5 F)	35 years	15 of 100 (Routine)
19 July 2025	Birsk, RU	daily low min	7.9 C (46.2 F)	2.1 C (3.8 F)	48 years	26 of 100 (Routine)
17 June 2025	Birsk, RU	daily rain	18.0 mm (0.7 in)	6.1 mm (0.24 in)	40 years	20 of 100 (Routine)
12 June 2025	Birsk, RU	daily rain	31.0 mm (1.2 in)	12.1 mm (0.5 in)	44 years	41 of 100 (Notable)
10 June 2025	Birsk, RU	daily high min	20.5 C (68.9 F)	1.5 C (2.7 F)	48 years	23 of 100 (Routine)
9 June 2025	Birsk, RU	daily high min	18.2 C (64.8 F)	0.2 C (0.4 F)	48 years	20 of 100 (Routine)
31 May 2025	Birsk, RU	daily high max	31.4 C (88.5 F)	0.1 C (0.2 F)	34 years	15 of 100 (Routine)
11 May 2025	Birsk, RU	daily rain	14.0 mm (0.6 in)	1.5 mm (0.06 in)	36 years	20 of 100 (Routine)
28 April 2025	Birsk, RU	daily rain	13.0 mm (0.5 in)	0.5 mm (0.02 in)	36 years	20 of 100 (Routine)
21 April 2025	Birsk, RU	daily high min	14.8 C (58.6 F)	1.6 C (2.9 F)	0 years	9 of 100 (Routine)
20 April 2025	Birsk, RU	daily high min	13.3 C (55.9 F)	3.7 C (6.7 F)	19 years	18 of 100 (Routine)
10 April 2025	Birsk, RU	monthly rain	23.1 mm (0.9 in)	0.5 mm (0.02 in)	2 years	20 of 100 (Routine)
2 April 2025	Birsk, RU	daily high max	18.3 C (64.9 F)	3.6 C (6.5 F)	2 years	10 of 100 (Routine)
1 April 2025	Birsk, RU	daily high max	13.7 C (56.7 F)	0.6 C (1.1 F)	4 years	6 of 100 (Routine)
28 March 2025	Birsk, RU	daily high max	10.4 C (50.7 F)	1.1 C (2.0 F)	6 years	8 of 100 (Routine)
16 March 2025	Birsk, RU	daily high min	0.1 C (32.2 F)	2.1 C (3.8 F)	24 years	16 of 100 (Routine)
15 March 2025	Birsk, RU	daily high max	9.0 C (48.2 F)	4.9 C (8.8 F)	23 years	21 of 100 (Routine)
14 March 2025	Birsk, RU	daily high min	1.5 C (34.7 F)	1.0 C (1.8 F)	24 years	14 of 100 (Routine)

Extremes by Year

1936 to 2025

Yearly extremes at Birsk: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	39.1 C (102.4 F)	2023	32.4 C (90.3 F)	56
Coldest night (TNn)	-47.0 C (-52.6 F)	1979	-30.7 C (-23.3 F)	57
Wettest day (Rx1day)	69.1 mm (2.7 in)	1988	27.8 mm (1.1 in)	82
Wettest five days (Rx5day)	81.0 mm (3.2 in)	1988	46.6 mm (1.8 in)	82
Longest dry spell (CDD)	57 days	1952	20 days	82

Hottest day (TXx)

The hottest day of the year at Birsk, 1936 to 2025. The record is 39.1 C (102.4 F) in 2023, marked on the chart; the median year is 32.4 C (90.3 F).

Hottest day (TXx) at Birsk by year
Year	Hottest day (TXx)
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	n/a
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	28.9 C (84.0 F)
1970	27.8 C (82.0 F)
1971	30.0 C (86.0 F)
1972	n/a
1973	31.0 C (87.8 F)
1974	31.0 C (87.8 F)
1975	34.0 C (93.2 F)
1976	32.0 C (89.6 F)
1977	32.0 C (89.6 F)
1978	32.0 C (89.6 F)
1979	32.0 C (89.6 F)
1980	30.0 C (86.0 F)
1981	33.0 C (91.4 F)
1982	33.2 C (91.8 F)
1983	32.8 C (91.0 F)
1984	30.9 C (87.6 F)
1985	32.0 C (89.6 F)
1986	29.1 C (84.4 F)
1987	36.9 C (98.4 F)
1988	33.0 C (91.4 F)
1989	33.8 C (92.8 F)
1990	31.8 C (89.2 F)
1991	35.6 C (96.1 F)
1992	29.6 C (85.3 F)
1993	29.8 C (85.6 F)
1994	29.8 C (85.6 F)
1995	35.8 C (96.4 F)
1996	33.4 C (92.1 F)
1997	33.6 C (92.5 F)
1998	35.5 C (95.9 F)
1999	32.4 C (90.3 F)
2000	36.7 C (98.1 F)
2001	34.2 C (93.6 F)
2002	31.5 C (88.7 F)
2003	31.4 C (88.5 F)
2004	33.1 C (91.6 F)
2005	31.9 C (89.4 F)
2006	33.1 C (91.6 F)
2007	32.1 C (89.8 F)
2008	32.7 C (90.9 F)
2009	32.7 C (90.9 F)
2010	36.7 C (98.1 F)
2011	33.8 C (92.8 F)
2012	36.5 C (97.7 F)
2013	33.7 C (92.7 F)
2014	27.5 C (81.5 F)
2015	35.2 C (95.4 F)
2016	18.5 C (65.3 F)
2017	30.9 C (87.6 F)
2018	31.9 C (89.4 F)
2019	31.7 C (89.1 F)
2020	37.0 C (98.6 F)
2021	37.4 C (99.3 F)
2022	32.0 C (89.6 F)
2023	39.1 C (102.4 F)
2024	33.4 C (92.1 F)
2025	32.4 C (90.3 F)

Coldest night (TNn)

The coldest night of the year at Birsk, 1936 to 2025. The record is -47.0 C (-52.6 F) in 1979, marked on the chart; the median year is -30.7 C (-23.3 F).

Coldest night (TNn) at Birsk by year
Year	Coldest night (TNn)
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	n/a
1954	n/a
1955	n/a
1956	n/a
1957	n/a
1958	n/a
1959	2.2 C (36.0 F)
1960	n/a
1961	n/a
1962	n/a
1963	n/a
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	-41.1 C (-42.0 F)
1970	-32.2 C (-26.0 F)
1971	-31.1 C (-24.0 F)
1972	n/a
1973	-35.0 C (-31.0 F)
1974	-34.0 C (-29.2 F)
1975	-27.0 C (-16.6 F)
1976	-39.0 C (-38.2 F)
1977	-36.0 C (-32.8 F)
1978	-30.0 C (-22.0 F)
1979	-47.0 C (-52.6 F)
1980	-35.0 C (-31.0 F)
1981	-24.0 C (-11.2 F)
1982	-30.8 C (-23.4 F)
1983	-29.5 C (-21.1 F)
1984	-35.0 C (-31.0 F)
1985	-28.7 C (-19.7 F)
1986	-39.7 C (-39.5 F)
1987	-33.9 C (-29.0 F)
1988	-29.8 C (-21.6 F)
1989	-36.0 C (-32.8 F)
1990	-30.0 C (-22.0 F)
1991	-31.2 C (-24.2 F)
1992	-24.5 C (-12.1 F)
1993	-28.1 C (-18.6 F)
1994	-35.7 C (-32.3 F)
1995	-25.0 C (-13.0 F)
1996	-30.9 C (-23.6 F)
1997	-31.9 C (-25.4 F)
1998	-30.7 C (-23.3 F)
1999	-33.5 C (-28.3 F)
2000	-27.3 C (-17.1 F)
2001	-29.6 C (-21.3 F)
2002	-35.3 C (-31.5 F)
2003	-31.1 C (-24.0 F)
2004	-27.7 C (-17.9 F)
2005	-24.3 C (-11.7 F)
2006	-36.8 C (-34.2 F)
2007	-27.0 C (-16.6 F)
2008	-28.1 C (-18.6 F)
2009	-35.7 C (-32.3 F)
2010	-32.5 C (-26.5 F)
2011	-30.7 C (-23.3 F)
2012	-29.2 C (-20.6 F)
2013	-29.3 C (-20.7 F)
2014	-35.5 C (-31.9 F)
2015	-31.7 C (-25.1 F)
2016	-32.2 C (-26.0 F)
2017	-24.8 C (-12.6 F)
2018	-26.2 C (-15.2 F)
2019	-25.5 C (-13.9 F)
2020	-24.1 C (-11.4 F)
2021	-27.2 C (-17.0 F)
2022	-26.4 C (-15.5 F)
2023	-34.0 C (-29.2 F)
2024	-28.1 C (-18.6 F)
2025	-22.4 C (-8.3 F)

Wettest day (Rx1day)

The wettest day of the year at Birsk, 1936 to 2025. The record is 69.1 mm (2.7 in) in 1988, marked on the chart; the median year is 27.8 mm (1.1 in).

Wettest day (Rx1day) at Birsk by year
Year	Wettest day (Rx1day)
1936	22.3 mm (0.9 in)
1937	19.7 mm (0.8 in)
1938	16.2 mm (0.6 in)
1939	28.7 mm (1.1 in)
1940	31.0 mm (1.2 in)
1941	34.4 mm (1.4 in)
1942	34.6 mm (1.4 in)
1943	22.7 mm (0.9 in)
1944	38.5 mm (1.5 in)
1945	26.9 mm (1.1 in)
1946	34.4 mm (1.4 in)
1947	19.5 mm (0.8 in)
1948	24.7 mm (1.0 in)
1949	32.9 mm (1.3 in)
1950	24.1 mm (0.9 in)
1951	27.7 mm (1.1 in)
1952	35.3 mm (1.4 in)
1953	33.2 mm (1.3 in)
1954	20.5 mm (0.8 in)
1955	44.7 mm (1.8 in)
1956	17.8 mm (0.7 in)
1957	39.2 mm (1.5 in)
1958	16.0 mm (0.6 in)
1959	19.9 mm (0.8 in)
1960	30.1 mm (1.2 in)
1961	27.3 mm (1.1 in)
1962	25.1 mm (1.0 in)
1963	30.5 mm (1.2 in)
1964	35.2 mm (1.4 in)
1965	31.2 mm (1.2 in)
1966	28.8 mm (1.1 in)
1967	34.8 mm (1.4 in)
1968	23.1 mm (0.9 in)
1969	27.8 mm (1.1 in)
1970	27.0 mm (1.1 in)
1971	24.2 mm (1.0 in)
1972	29.2 mm (1.1 in)
1973	31.3 mm (1.2 in)
1974	44.2 mm (1.7 in)
1975	15.8 mm (0.6 in)
1976	19.1 mm (0.8 in)
1977	58.9 mm (2.3 in)
1978	27.2 mm (1.1 in)
1979	31.8 mm (1.3 in)
1980	30.8 mm (1.2 in)
1981	18.3 mm (0.7 in)
1982	31.7 mm (1.2 in)
1983	36.9 mm (1.5 in)
1984	30.3 mm (1.2 in)
1985	58.1 mm (2.3 in)
1986	23.4 mm (0.9 in)
1987	25.9 mm (1.0 in)
1988	69.1 mm (2.7 in)
1989	48.2 mm (1.9 in)
1990	35.9 mm (1.4 in)
1991	25.7 mm (1.0 in)
1992	35.3 mm (1.4 in)
1993	24.9 mm (1.0 in)
1994	33.2 mm (1.3 in)
1995	24.4 mm (1.0 in)
1996	45.0 mm (1.8 in)
1997	24.9 mm (1.0 in)
1998	27.9 mm (1.1 in)
1999	17.0 mm (0.7 in)
2000	n/a
2001	n/a
2002	2.5 mm (0.10 in)
2003	0.0 mm (0.00 in)
2004	0.0 mm (0.00 in)
2005	1.0 mm (0.04 in)
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	26.9 mm (1.1 in)
2013	18.0 mm (0.7 in)
2014	36.1 mm (1.4 in)
2015	24.9 mm (1.0 in)
2016	23.1 mm (0.9 in)
2017	30.7 mm (1.2 in)
2018	22.1 mm (0.9 in)
2019	25.9 mm (1.0 in)
2020	33.0 mm (1.3 in)
2021	19.1 mm (0.8 in)
2022	38.1 mm (1.5 in)
2023	23.9 mm (0.9 in)
2024	29.0 mm (1.1 in)
2025	31.0 mm (1.2 in)

Wettest five days (Rx5day)

The wettest five days of the year at Birsk, 1936 to 2025. The record is 81.0 mm (3.2 in) in 1988, marked on the chart; the median year is 46.6 mm (1.8 in).

Wettest five days (Rx5day) at Birsk by year
Year	Wettest five days (Rx5day)
1936	29.7 mm (1.2 in)
1937	52.0 mm (2.0 in)
1938	37.6 mm (1.5 in)
1939	48.0 mm (1.9 in)
1940	37.4 mm (1.5 in)
1941	49.3 mm (1.9 in)
1942	52.2 mm (2.1 in)
1943	59.9 mm (2.4 in)
1944	57.7 mm (2.3 in)
1945	35.8 mm (1.4 in)
1946	58.8 mm (2.3 in)
1947	33.7 mm (1.3 in)
1948	57.7 mm (2.3 in)
1949	36.9 mm (1.5 in)
1950	54.5 mm (2.1 in)
1951	43.7 mm (1.7 in)
1952	60.3 mm (2.4 in)
1953	41.6 mm (1.6 in)
1954	28.9 mm (1.1 in)
1955	67.6 mm (2.7 in)
1956	34.5 mm (1.4 in)
1957	61.2 mm (2.4 in)
1958	33.5 mm (1.3 in)
1959	56.8 mm (2.2 in)
1960	46.8 mm (1.8 in)
1961	29.7 mm (1.2 in)
1962	37.3 mm (1.5 in)
1963	44.0 mm (1.7 in)
1964	57.3 mm (2.3 in)
1965	35.2 mm (1.4 in)
1966	58.5 mm (2.3 in)
1967	36.2 mm (1.4 in)
1968	41.7 mm (1.6 in)
1969	53.2 mm (2.1 in)
1970	59.0 mm (2.3 in)
1971	54.8 mm (2.2 in)
1972	42.5 mm (1.7 in)
1973	46.9 mm (1.8 in)
1974	51.8 mm (2.0 in)
1975	31.0 mm (1.2 in)
1976	21.6 mm (0.9 in)
1977	31.0 mm (1.2 in)
1978	55.0 mm (2.2 in)
1979	49.5 mm (1.9 in)
1980	60.5 mm (2.4 in)
1981	27.8 mm (1.1 in)
1982	56.0 mm (2.2 in)
1983	53.2 mm (2.1 in)
1984	49.6 mm (2.0 in)
1985	80.1 mm (3.2 in)
1986	53.6 mm (2.1 in)
1987	59.3 mm (2.3 in)
1988	81.0 mm (3.2 in)
1989	50.9 mm (2.0 in)
1990	62.0 mm (2.4 in)
1991	57.0 mm (2.2 in)
1992	44.4 mm (1.7 in)
1993	25.7 mm (1.0 in)
1994	64.5 mm (2.5 in)
1995	29.0 mm (1.1 in)
1996	10.8 mm (0.4 in)
1997	38.1 mm (1.5 in)
1998	56.4 mm (2.2 in)
1999	38.9 mm (1.5 in)
2000	n/a
2001	n/a
2002	0.0 mm (0.00 in)
2003	0.0 mm (0.00 in)
2004	0.0 mm (0.00 in)
2005	0.0 mm (0.00 in)
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	44.2 mm (1.7 in)
2013	35.5 mm (1.4 in)
2014	45.5 mm (1.8 in)
2015	58.2 mm (2.3 in)
2016	36.3 mm (1.4 in)
2017	50.2 mm (2.0 in)
2018	36.1 mm (1.4 in)
2019	46.3 mm (1.8 in)
2020	46.2 mm (1.8 in)
2021	28.5 mm (1.1 in)
2022	79.0 mm (3.1 in)
2023	40.2 mm (1.6 in)
2024	63.0 mm (2.5 in)
2025	52.1 mm (2.1 in)

Longest dry spell (CDD)

The longest dry spell of the year at Birsk, 1936 to 2025. The record is 57 days in 1952, marked on the chart; the median year is 20 days.

Longest dry spell (CDD) at Birsk by year
Year	Longest dry spell (CDD)
1936	26 days
1937	28 days
1938	34 days
1939	24 days
1940	29 days
1941	19 days
1942	26 days
1943	29 days
1944	36 days
1945	23 days
1946	25 days
1947	21 days
1948	18 days
1949	48 days
1950	32 days
1951	30 days
1952	57 days
1953	16 days
1954	44 days
1955	24 days
1956	16 days
1957	20 days
1958	24 days
1959	24 days
1960	21 days
1961	19 days
1962	41 days
1963	18 days
1964	17 days
1965	21 days
1966	27 days
1967	23 days
1968	13 days
1969	32 days
1970	20 days
1971	18 days
1972	20 days
1973	19 days
1974	44 days
1975	24 days
1976	9 days
1977	10 days
1978	19 days
1979	23 days
1980	18 days
1981	28 days
1982	22 days
1983	16 days
1984	57 days
1985	26 days
1986	25 days
1987	10 days
1988	19 days
1989	19 days
1990	15 days
1991	19 days
1992	20 days
1993	6 days
1994	17 days
1995	24 days
1996	9 days
1997	4 days
1998	13 days
1999	14 days
2000	n/a
2001	n/a
2002	5 days
2003	18 days
2004	10 days
2005	18 days
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	22 days
2013	15 days
2014	15 days
2015	16 days
2016	13 days
2017	19 days
2018	29 days
2019	19 days
2020	20 days
2021	20 days
2022	25 days
2023	19 days
2024	18 days
2025	17 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.

Rainfall Return Levels

66 years, 1936 to 2024

A day with at least 28.4 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 57.2 mm (2.3 in) of rain is expected about once in 100 years.

Rainfall return levels at Birsk: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	28.4 mm (1.1 in)
5 years	36.5 mm (1.4 in)
10 years	41.6 mm (1.6 in)
25 years	48.0 mm (1.9 in)
50 years	52.7 mm (2.1 in)
100 years	57.2 mm (2.3 in)	Longer than the 66 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, 66 years of values from 1936 to 2024.

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: 69.1 mm (2.7 in) in 1988; 58.1 mm (2.3 in) in 1985; 48.2 mm (1.9 in) in 1989.

Download the Data

Data for Birsk standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Birsk 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 2026-10-13 (13 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).