Bol'sie-Uki Weather Records (RSM00028491)

Record envelope, standing records and threshold days for Bol'sie-Uki (RSM00028491), Russia, with 90 years of record.

Key Facts for Bol'sie-Uki

Bol'sie-Uki (RSM00028491) is a weather station in Russia at 56.93 latitude and 72.67 longitude, 87 m (285 ft) above sea level.
The station reports from 1936 to 2025, 90 years of record.
1,464 records set at Bol'sie-Uki still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Bol'sie-Uki set a daily record high maximum temperature of 6.3 C (43.3 F) on 19 March 2025.

About the Station

Location: Russia, 56.93 latitude, 72.67 longitude.
Elevation: 87 m (285 ft).
Period of record: 1936 to 2025, 90 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

6 days at or beyond a record

The band shows the record high and record low for each calendar day at Bol'sie-Uki. The lines show the 2026 daily maximum and minimum. 6 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Bol'sie-Uki, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	3.0 C (37.4 F)	-50.0 C (-58.0 F)	2.2 C (36.0 F)	-27.8 C (-18.0 F)
Feb	11.5 C (52.7 F)	-43.4 C (-46.1 F)	2.5 C (36.5 F)	-29.7 C (-21.5 F)
Mar	12.9 C (55.2 F)	-38.9 C (-38.0 F)	12.3 C (54.1 F)	-29.4 C (-20.9 F)
Apr	28.5 C (83.3 F)	-24.0 C (-11.2 F)	n/a	n/a
May	35.8 C (96.4 F)	-12.3 C (9.9 F)	n/a	n/a
Jun	37.0 C (98.6 F)	-2.9 C (26.8 F)	n/a	n/a
Jul	38.0 C (100.4 F)	0.2 C (32.4 F)	n/a	n/a
Aug	35.2 C (95.4 F)	-1.0 C (30.2 F)	n/a	n/a
Sep	31.7 C (89.1 F)	-8.0 C (17.6 F)	n/a	n/a
Oct	23.0 C (73.4 F)	-25.0 C (-13.0 F)	n/a	n/a
Nov	10.7 C (51.3 F)	-39.6 C (-39.3 F)	n/a	n/a
Dec	6.8 C (44.2 F)	-46.9 C (-52.4 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Bol'sie-Uki still stand. 1969 holds the most, with 59.

Standing records at Bol'sie-Uki by the year they were set
Year set	Standing records
1957	3
1958	2
1959	3
1960	6
1961	5
1962	4
1963	14
1969	59
1970	38
1971	23
1973	28
1974	28
1975	25
1976	31
1977	28
1978	26
1979	31
1980	23
1981	21
1982	40
1983	26
1984	45
1985	14
1986	23
1987	26
1988	26
1989	35
1990	30
1991	30
1992	29
1993	17
1994	17
1995	33
1996	21
1997	38
1998	52
1999	45
2000	14
2001	30
2002	29
2003	23
2004	30
2005	21
2006	37
2007	18
2008	32
2009	29
2010	37
2011	26
2012	27
2013	17
2014	20
2015	23
2016	19
2017	4
2018	7
2019	4
2020	15
2021	11
2022	11
2023	20
2024	2
2025	13

All-Time Record Progression

1 new records

1 all-time records were set at Bol'sie-Uki between 23 January 2006 and 23 January 2006. Each dot is a new record.

Wettest Day of Each Month

Aug: 78.4 mm (3.1 in)

The wettest day on record for each calendar month at Bol'sie-Uki. The most was 78.4 mm (3.1 in) on 4 August 1957.

Record daily precipitation for each month at Bol'sie-Uki
Month	Record daily precipitation (mm)	Date
Jan	12.2 mm (0.5 in)	12 January 2013
Feb	9.9 mm (0.39 in)	9 February 2015
Mar	16.0 mm (0.6 in)	29 March 2021
Apr	64.0 mm (2.5 in)	15 April 1993
May	51.1 mm (2.0 in)	19 May 1966
Jun	51.1 mm (2.0 in)	24 June 1993
Jul	70.4 mm (2.8 in)	16 July 1992
Aug	78.4 mm (3.1 in)	4 August 1957
Sep	35.1 mm (1.4 in)	21 September 1998
Oct	22.1 mm (0.9 in)	27 October 2020
Nov	16.0 mm (0.6 in)	11 November 1997
Dec	10.9 mm (0.4 in)	5 December 2013

Period of Record Coverage

1955 to 2025

65 years of record at Bol'sie-Uki, 1955 to 2025. 62 years have data for under 90 percent of days and are left out of rankings: 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962 and others.

Days with data per year at Bol'sie-Uki
Year	Days with data	Share of year	Complete
1955	1	0%	No
1956	17	5%	No
1957	33	9%	No
1958	46	13%	No
1959	128	35%	No
1960	71	19%	No
1961	128	35%	No
1962	106	29%	No
1963	73	20%	No
1969	329	90%	Yes
1970	314	86%	No
1971	158	43%	No
1973	264	72%	No
1974	293	80%	No
1975	296	81%	No
1976	318	87%	No
1977	317	87%	No
1978	318	87%	No
1979	317	87%	No
1980	324	89%	No
1981	312	85%	No
1982	284	78%	No
1983	304	83%	No
1984	309	84%	No
1985	313	86%	No
1986	305	84%	No
1987	304	83%	No
1988	308	84%	No
1989	301	82%	No
1990	276	76%	No
1991	205	56%	No
1992	230	63%	No
1993	326	89%	No
1994	320	88%	No
1995	305	84%	No
1996	328	90%	No
1997	308	84%	No
1998	298	82%	No
1999	300	82%	No
2000	330	90%	Yes
2001	304	83%	No
2002	293	80%	No
2003	311	85%	No
2004	303	83%	No
2005	311	85%	No
2006	305	84%	No
2007	303	83%	No
2008	326	89%	No
2009	319	87%	No
2010	329	90%	Yes
2011	328	90%	No
2012	325	89%	No
2013	108	30%	No
2014	14	4%	No
2015	261	72%	No
2016	145	40%	No
2017	139	38%	No
2018	233	64%	No
2019	121	33%	No
2020	116	32%	No
2021	108	30%	No
2022	145	40%	No
2023	127	35%	No
2024	130	36%	No
2025	75	21%	No

Latest Records

Latest records at Bol'sie-Uki
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
19 March 2025	Bol'sie-Uki, RU	daily high max	6.3 C (43.3 F)	1.1 C (2.0 F)	10 years	12 of 100 (Routine)
19 March 2025	Bol'sie-Uki, RU	daily high min	1.2 C (34.2 F)	2.6 C (4.7 F)	11 years	12 of 100 (Routine)
18 March 2025	Bol'sie-Uki, RU	daily rain	5.1 mm (0.20 in)	2.1 mm (0.08 in)	8 years	20 of 100 (Routine)
18 March 2025	Bol'sie-Uki, RU	daily high min	1.7 C (35.1 F)	2.9 C (5.2 F)	12 years	12 of 100 (Routine)
17 March 2025	Bol'sie-Uki, RU	daily rain	5.1 mm (0.20 in)	0.2 mm (0.01 in)	42 years	20 of 100 (Routine)
17 March 2025	Bol'sie-Uki, RU	daily high min	0.4 C (32.7 F)	0.8 C (1.4 F)	12 years	9 of 100 (Routine)
16 March 2025	Bol'sie-Uki, RU	daily rain	6.1 mm (0.24 in)	0.7 mm (0.03 in)	80 years	20 of 100 (Routine)
25 February 2025	Bol'sie-Uki, RU	daily high max	2.5 C (36.5 F)	0.2 C (0.4 F)	38 years	18 of 100 (Routine)
18 February 2025	Bol'sie-Uki, RU	daily rain	7.9 mm (0.31 in)	3.8 mm (0.15 in)	58 years	20 of 100 (Routine)
4 February 2025	Bol'sie-Uki, RU	daily high min	-3.3 C (26.1 F)	5.0 C (9.0 F)	3 years	11 of 100 (Routine)
4 February 2025	Bol'sie-Uki, RU	daily high max	0.3 C (32.5 F)	0.8 C (1.4 F)	2 years	8 of 100 (Routine)
3 February 2025	Bol'sie-Uki, RU	daily high min	-5.0 C (23.0 F)	3.3 C (5.9 F)	2 years	9 of 100 (Routine)
22 January 2025	Bol'sie-Uki, RU	daily rain	3.8 mm (0.15 in)	1.1 mm (0.04 in)	35 years	20 of 100 (Routine)
12 January 2025	Bol'sie-Uki, RU	daily high min	-8.7 C (16.3 F)	1.2 C (2.2 F)	18 years	12 of 100 (Routine)
11 January 2025	Bol'sie-Uki, RU	daily high min	-7.2 C (19.0 F)	1.8 C (3.2 F)	25 years	14 of 100 (Routine)
6 January 2025	Bol'sie-Uki, RU	daily high max	0.9 C (33.6 F)	0.1 C (0.2 F)	41 years	19 of 100 (Routine)
5 January 2025	Bol'sie-Uki, RU	daily high max	-0.5 C (31.1 F)	0.6 C (1.1 F)	41 years	19 of 100 (Routine)
4 January 2025	Bol'sie-Uki, RU	daily high max	2.2 C (36.0 F)	3.2 C (5.8 F)	30 years	20 of 100 (Routine)
20 December 2024	Bol'sie-Uki, RU	daily rain	4.1 mm (0.16 in)	0.1 mm (0.00 in)	42 years	20 of 100 (Routine)
19 December 2024	Bol'sie-Uki, RU	daily high min	-11.1 C (12.0 F)	1.5 C (2.7 F)	21 years	13 of 100 (Routine)

Extremes by Year

1936 to 2025

Yearly extremes at Bol'sie-Uki: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.0 C (100.4 F)	1989	31.9 C (89.4 F)	65
Coldest night (TNn)	-50.0 C (-58.0 F)	1970	-39.3 C (-38.7 F)	61
Wettest day (Rx1day)	78.4 mm (3.1 in)	1957	25.9 mm (1.0 in)	83
Wettest five days (Rx5day)	104.6 mm (4.1 in)	1976	45.8 mm (1.8 in)	78
Longest dry spell (CDD)	63 days	1958	24 days	83

Hottest day (TXx)

The hottest day of the year at Bol'sie-Uki, 1936 to 2025. The record is 38.0 C (100.4 F) in 1989, marked on the chart; the median year is 31.9 C (89.4 F).

Hottest day (TXx) at Bol'sie-Uki 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	-10.0 C (14.0 F)
1956	22.8 C (73.0 F)
1957	30.0 C (86.0 F)
1958	30.0 C (86.0 F)
1959	31.1 C (88.0 F)
1960	30.0 C (86.0 F)
1961	30.0 C (86.0 F)
1962	30.0 C (86.0 F)
1963	31.1 C (88.0 F)
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	33.9 C (93.0 F)
1970	32.2 C (90.0 F)
1971	28.9 C (84.0 F)
1972	n/a
1973	32.0 C (89.6 F)
1974	37.0 C (98.6 F)
1975	34.0 C (93.2 F)
1976	31.0 C (87.8 F)
1977	32.0 C (89.6 F)
1978	33.0 C (91.4 F)
1979	29.0 C (84.2 F)
1980	34.0 C (93.2 F)
1981	31.0 C (87.8 F)
1982	33.9 C (93.0 F)
1983	33.4 C (92.1 F)
1984	29.8 C (85.6 F)
1985	29.2 C (84.6 F)
1986	28.3 C (82.9 F)
1987	34.0 C (93.2 F)
1988	34.0 C (93.2 F)
1989	38.0 C (100.4 F)
1990	33.4 C (92.1 F)
1991	33.3 C (91.9 F)
1992	32.5 C (90.5 F)
1993	32.0 C (89.6 F)
1994	34.7 C (94.5 F)
1995	33.8 C (92.8 F)
1996	31.9 C (89.4 F)
1997	32.8 C (91.0 F)
1998	35.2 C (95.4 F)
1999	34.2 C (93.6 F)
2000	32.5 C (90.5 F)
2001	34.4 C (93.9 F)
2002	31.2 C (88.2 F)
2003	32.8 C (91.0 F)
2004	35.8 C (96.4 F)
2005	33.0 C (91.4 F)
2006	32.4 C (90.3 F)
2007	33.5 C (92.3 F)
2008	31.8 C (89.2 F)
2009	33.0 C (91.4 F)
2010	33.4 C (92.1 F)
2011	31.0 C (87.8 F)
2012	33.6 C (92.5 F)
2013	27.3 C (81.1 F)
2014	29.3 C (84.7 F)
2015	31.0 C (87.8 F)
2016	29.5 C (85.1 F)
2017	12.6 C (54.7 F)
2018	31.7 C (89.1 F)
2019	11.0 C (51.8 F)
2020	10.0 C (50.0 F)
2021	9.1 C (48.4 F)
2022	12.1 C (53.8 F)
2023	12.3 C (54.1 F)
2024	11.0 C (51.8 F)
2025	12.3 C (54.1 F)

Coldest night (TNn)

The coldest night of the year at Bol'sie-Uki, 1936 to 2025. The record is -50.0 C (-58.0 F) in 1970, marked on the chart; the median year is -39.3 C (-38.7 F).

Coldest night (TNn) at Bol'sie-Uki 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	-40.0 C (-40.0 F)
1960	-31.1 C (-24.0 F)
1961	-22.8 C (-9.0 F)
1962	-41.1 C (-42.0 F)
1963	-37.2 C (-35.0 F)
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	-46.1 C (-51.0 F)
1970	-50.0 C (-58.0 F)
1971	-40.0 C (-40.0 F)
1972	n/a
1973	-47.0 C (-52.6 F)
1974	-42.0 C (-43.6 F)
1975	-40.0 C (-40.0 F)
1976	-45.0 C (-49.0 F)
1977	-43.0 C (-45.4 F)
1978	-39.0 C (-38.2 F)
1979	-45.0 C (-49.0 F)
1980	-37.0 C (-34.6 F)
1981	-32.0 C (-25.6 F)
1982	-34.9 C (-30.8 F)
1983	-28.9 C (-20.0 F)
1984	-46.9 C (-52.4 F)
1985	-33.3 C (-27.9 F)
1986	-42.4 C (-44.3 F)
1987	-37.6 C (-35.7 F)
1988	-40.8 C (-41.4 F)
1989	-39.8 C (-39.6 F)
1990	-39.6 C (-39.3 F)
1991	-37.7 C (-35.9 F)
1992	-35.4 C (-31.7 F)
1993	-36.9 C (-34.4 F)
1994	-43.4 C (-46.1 F)
1995	-34.0 C (-29.2 F)
1996	-46.0 C (-50.8 F)
1997	-42.5 C (-44.5 F)
1998	-40.5 C (-40.9 F)
1999	-41.7 C (-43.1 F)
2000	-40.0 C (-40.0 F)
2001	-42.8 C (-45.0 F)
2002	-37.7 C (-35.9 F)
2003	-33.5 C (-28.3 F)
2004	-34.0 C (-29.2 F)
2005	-36.6 C (-33.9 F)
2006	-44.0 C (-47.2 F)
2007	-37.2 C (-35.0 F)
2008	-34.1 C (-29.4 F)
2009	-40.3 C (-40.5 F)
2010	-44.0 C (-47.2 F)
2011	-40.1 C (-40.2 F)
2012	-39.3 C (-38.7 F)
2013	-32.2 C (-26.0 F)
2014	-38.0 C (-36.4 F)
2015	-39.8 C (-39.6 F)
2016	-44.8 C (-48.6 F)
2017	-38.4 C (-37.1 F)
2018	-37.5 C (-35.5 F)
2019	-41.0 C (-41.8 F)
2020	-36.9 C (-34.4 F)
2021	-39.1 C (-38.4 F)
2022	-32.7 C (-26.9 F)
2023	-39.2 C (-38.6 F)
2024	-36.3 C (-33.3 F)
2025	-29.7 C (-21.5 F)

Wettest day (Rx1day)

The wettest day of the year at Bol'sie-Uki, 1936 to 2025. The record is 78.4 mm (3.1 in) in 1957, marked on the chart; the median year is 25.9 mm (1.0 in).

Wettest day (Rx1day) at Bol'sie-Uki by year
Year	Wettest day (Rx1day)
1936	14.6 mm (0.6 in)
1937	25.9 mm (1.0 in)
1938	43.3 mm (1.7 in)
1939	49.4 mm (1.9 in)
1940	28.8 mm (1.1 in)
1941	32.7 mm (1.3 in)
1942	28.6 mm (1.1 in)
1943	17.9 mm (0.7 in)
1944	26.2 mm (1.0 in)
1945	38.0 mm (1.5 in)
1946	31.1 mm (1.2 in)
1947	48.5 mm (1.9 in)
1948	17.8 mm (0.7 in)
1949	30.6 mm (1.2 in)
1950	36.2 mm (1.4 in)
1951	26.3 mm (1.0 in)
1952	18.1 mm (0.7 in)
1953	22.5 mm (0.9 in)
1954	38.3 mm (1.5 in)
1955	25.1 mm (1.0 in)
1956	33.9 mm (1.3 in)
1957	78.4 mm (3.1 in)
1958	23.5 mm (0.9 in)
1959	36.1 mm (1.4 in)
1960	22.0 mm (0.9 in)
1961	38.9 mm (1.5 in)
1962	28.0 mm (1.1 in)
1963	37.5 mm (1.5 in)
1964	24.7 mm (1.0 in)
1965	29.0 mm (1.1 in)
1966	51.1 mm (2.0 in)
1967	18.5 mm (0.7 in)
1968	41.7 mm (1.6 in)
1969	47.6 mm (1.9 in)
1970	25.5 mm (1.0 in)
1971	24.4 mm (1.0 in)
1972	14.8 mm (0.6 in)
1973	57.9 mm (2.3 in)
1974	30.4 mm (1.2 in)
1975	25.4 mm (1.0 in)
1976	54.9 mm (2.2 in)
1977	43.9 mm (1.7 in)
1978	15.5 mm (0.6 in)
1979	30.3 mm (1.2 in)
1980	50.6 mm (2.0 in)
1981	15.9 mm (0.6 in)
1982	10.9 mm (0.4 in)
1983	36.1 mm (1.4 in)
1984	24.9 mm (1.0 in)
1985	25.1 mm (1.0 in)
1986	21.7 mm (0.9 in)
1987	22.3 mm (0.9 in)
1988	23.5 mm (0.9 in)
1989	30.9 mm (1.2 in)
1990	22.9 mm (0.9 in)
1991	33.7 mm (1.3 in)
1992	70.4 mm (2.8 in)
1993	64.0 mm (2.5 in)
1994	32.3 mm (1.3 in)
1995	18.2 mm (0.7 in)
1996	23.1 mm (0.9 in)
1997	27.9 mm (1.1 in)
1998	35.1 mm (1.4 in)
1999	31.0 mm (1.2 in)
2000	0.0 mm (0.00 in)
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	20.1 mm (0.8 in)
2013	34.0 mm (1.3 in)
2014	43.9 mm (1.7 in)
2015	25.9 mm (1.0 in)
2016	16.0 mm (0.6 in)
2017	14.0 mm (0.6 in)
2018	20.1 mm (0.8 in)
2019	8.9 mm (0.35 in)
2020	22.1 mm (0.9 in)
2021	16.0 mm (0.6 in)
2022	8.9 mm (0.35 in)
2023	15.0 mm (0.6 in)
2024	9.9 mm (0.39 in)
2025	7.9 mm (0.31 in)

Wettest five days (Rx5day)

The wettest five days of the year at Bol'sie-Uki, 1936 to 2025. The record is 104.6 mm (4.1 in) in 1976, marked on the chart; the median year is 45.8 mm (1.8 in).

Wettest five days (Rx5day) at Bol'sie-Uki by year
Year	Wettest five days (Rx5day)
1936	25.7 mm (1.0 in)
1937	27.8 mm (1.1 in)
1938	64.1 mm (2.5 in)
1939	58.7 mm (2.3 in)
1940	45.4 mm (1.8 in)
1941	63.3 mm (2.5 in)
1942	63.2 mm (2.5 in)
1943	29.7 mm (1.2 in)
1944	39.5 mm (1.6 in)
1945	56.6 mm (2.2 in)
1946	42.3 mm (1.7 in)
1947	70.7 mm (2.8 in)
1948	28.8 mm (1.1 in)
1949	68.0 mm (2.7 in)
1950	52.7 mm (2.1 in)
1951	38.9 mm (1.5 in)
1952	30.2 mm (1.2 in)
1953	42.0 mm (1.7 in)
1954	49.1 mm (1.9 in)
1955	42.5 mm (1.7 in)
1956	49.2 mm (1.9 in)
1957	101.6 mm (4.0 in)
1958	28.7 mm (1.1 in)
1959	59.4 mm (2.3 in)
1960	48.9 mm (1.9 in)
1961	58.7 mm (2.3 in)
1962	60.2 mm (2.4 in)
1963	47.9 mm (1.9 in)
1964	51.2 mm (2.0 in)
1965	52.3 mm (2.1 in)
1966	57.4 mm (2.3 in)
1967	30.9 mm (1.2 in)
1968	49.6 mm (2.0 in)
1969	75.6 mm (3.0 in)
1970	40.7 mm (1.6 in)
1971	36.1 mm (1.4 in)
1972	30.2 mm (1.2 in)
1973	80.3 mm (3.2 in)
1974	81.5 mm (3.2 in)
1975	52.7 mm (2.1 in)
1976	104.6 mm (4.1 in)
1977	58.8 mm (2.3 in)
1978	34.4 mm (1.4 in)
1979	53.3 mm (2.1 in)
1980	80.3 mm (3.2 in)
1981	32.2 mm (1.3 in)
1982	23.7 mm (0.9 in)
1983	49.9 mm (2.0 in)
1984	54.2 mm (2.1 in)
1985	46.3 mm (1.8 in)
1986	29.1 mm (1.1 in)
1987	59.8 mm (2.4 in)
1988	26.0 mm (1.0 in)
1989	38.3 mm (1.5 in)
1990	44.9 mm (1.8 in)
1991	58.0 mm (2.3 in)
1992	87.3 mm (3.4 in)
1993	72.1 mm (2.8 in)
1994	55.6 mm (2.2 in)
1995	32.3 mm (1.3 in)
1996	25.3 mm (1.0 in)
1997	12.4 mm (0.5 in)
1998	35.1 mm (1.4 in)
1999	38.9 mm (1.5 in)
2000	n/a
2001	n/a
2002	n/a
2003	n/a
2004	n/a
2005	n/a
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	35.4 mm (1.4 in)
2013	47.2 mm (1.9 in)
2014	63.4 mm (2.5 in)
2015	56.9 mm (2.2 in)
2016	23.7 mm (0.9 in)
2017	23.4 mm (0.9 in)
2018	37.1 mm (1.5 in)
2019	18.0 mm (0.7 in)
2020	28.4 mm (1.1 in)
2021	30.8 mm (1.2 in)
2022	18.0 mm (0.7 in)
2023	38.6 mm (1.5 in)
2024	21.6 mm (0.9 in)
2025	21.3 mm (0.8 in)

Longest dry spell (CDD)

The longest dry spell of the year at Bol'sie-Uki, 1936 to 2025. The record is 63 days in 1958, marked on the chart; the median year is 24 days.

Longest dry spell (CDD) at Bol'sie-Uki by year
Year	Longest dry spell (CDD)
1936	20 days
1937	36 days
1938	25 days
1939	18 days
1940	37 days
1941	32 days
1942	35 days
1943	30 days
1944	32 days
1945	28 days
1946	25 days
1947	31 days
1948	24 days
1949	30 days
1950	54 days
1951	28 days
1952	57 days
1953	35 days
1954	41 days
1955	22 days
1956	24 days
1957	36 days
1958	63 days
1959	17 days
1960	27 days
1961	18 days
1962	36 days
1963	25 days
1964	33 days
1965	24 days
1966	34 days
1967	26 days
1968	31 days
1969	34 days
1970	46 days
1971	25 days
1972	17 days
1973	28 days
1974	32 days
1975	18 days
1976	62 days
1977	14 days
1978	24 days
1979	21 days
1980	26 days
1981	31 days
1982	14 days
1983	22 days
1984	18 days
1985	33 days
1986	42 days
1987	48 days
1988	28 days
1989	28 days
1990	30 days
1991	33 days
1992	22 days
1993	9 days
1994	18 days
1995	30 days
1996	10 days
1997	8 days
1998	10 days
1999	19 days
2000	2 days
2001	n/a
2002	2 days
2003	2 days
2004	1 day
2005	1 day
2006	n/a
2007	n/a
2008	n/a
2009	n/a
2010	n/a
2011	n/a
2012	22 days
2013	17 days
2014	17 days
2015	22 days
2016	22 days
2017	11 days
2018	22 days
2019	12 days
2020	15 days
2021	9 days
2022	17 days
2023	12 days
2024	11 days
2025	10 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

62 years, 1936 to 2015

A day with at least 29.2 mm (1.1 in) of rain is expected about once in 2 years. A day with at least 78.1 mm (3.1 in) of rain is expected about once in 100 years.

Rainfall return levels at Bol'sie-Uki: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	29.2 mm (1.1 in)
5 years	40.8 mm (1.6 in)
10 years	49.1 mm (1.9 in)
25 years	60.2 mm (2.4 in)
50 years	69.0 mm (2.7 in)
100 years	78.1 mm (3.1 in)	Longer than the 62 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, 62 years of values from 1936 to 2015.

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

The largest wettest-day totals in the fit: 78.4 mm (3.1 in) in 1957; 70.4 mm (2.8 in) in 1992; 57.9 mm (2.3 in) in 1973.

Download the Data

Data for Bol'sie-Uki standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Bol'sie-Uki 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 2026-10-15 (15 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).