Ust-Kulom Weather Records (RSM00023803)

Record envelope, standing records and threshold days for Ust-Kulom (RSM00023803), Russia, with 90 years of record.

Key Facts for Ust-Kulom

Ust-Kulom (RSM00023803) is a weather station in Russia at 61.68 latitude and 53.68 longitude, 144 m (472 ft) above sea level.
The station reports from 1936 to 2025, 90 years of record.
1,464 records set at Ust-Kulom still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Ust-Kulom set a daily record low minimum temperature of 1.6 C (34.9 F) on 18 June 2025.

About the Station

Location: Russia, 61.68 latitude, 53.68 longitude.
Elevation: 144 m (472 ft).
Period of record: 1936 to 2025, 90 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

10 days at or beyond a record

The band shows the record high and record low for each calendar day at Ust-Kulom. The lines show the 2026 daily maximum and minimum. 10 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Ust-Kulom, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	5.0 C (41.0 F)	-47.0 C (-52.6 F)	0.5 C (32.9 F)	-24.7 C (-12.5 F)
Feb	7.0 C (44.6 F)	-42.2 C (-44.0 F)	2.3 C (36.1 F)	-28.6 C (-19.5 F)
Mar	12.8 C (55.0 F)	-37.8 C (-36.0 F)	12.3 C (54.1 F)	-15.7 C (3.7 F)
Apr	25.4 C (77.7 F)	-27.4 C (-17.3 F)	11.1 C (52.0 F)	-9.9 C (14.2 F)
May	31.6 C (88.9 F)	-16.1 C (3.0 F)	29.7 C (85.5 F)	-4.3 C (24.3 F)
Jun	38.5 C (101.3 F)	-7.3 C (18.9 F)	30.3 C (86.5 F)	1.3 C (34.3 F)
Jul	37.2 C (99.0 F)	0.0 C (32.0 F)	28.2 C (82.8 F)	4.7 C (40.5 F)
Aug	34.3 C (93.7 F)	-2.7 C (27.1 F)	30.0 C (86.0 F)	3.3 C (37.9 F)
Sep	29.0 C (84.2 F)	-8.0 C (17.6 F)	n/a	n/a
Oct	21.3 C (70.3 F)	-30.0 C (-22.0 F)	n/a	n/a
Nov	8.7 C (47.7 F)	-40.5 C (-40.9 F)	n/a	n/a
Dec	6.6 C (43.9 F)	-44.1 C (-47.4 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Ust-Kulom still stand. 1969 holds the most, with 60.

Standing records at Ust-Kulom by the year they were set
Year set	Standing records
1949	8
1950	17
1951	18
1952	17
1953	10
1954	8
1955	12
1957	3
1959	4
1960	11
1961	26
1962	30
1963	42
1969	60
1970	17
1971	16
1973	32
1974	12
1975	16
1976	18
1977	31
1978	26
1979	35
1980	19
1981	43
1982	41
1983	22
1984	17
1985	18
1986	26
1987	21
1988	13
1989	23
1990	26
1991	31
1992	35
1993	12
1994	9
1995	13
1996	6
1997	18
1998	40
1999	35
2000	22
2001	18
2002	35
2003	20
2004	10
2005	24
2006	29
2007	28
2008	21
2009	11
2010	41
2011	10
2012	21
2013	14
2014	9
2015	25
2016	20
2017	13
2018	14
2019	14
2020	20
2021	26
2022	16
2023	27
2024	27
2025	12

All-Time Record Progression

2 new records

2 all-time records were set at Ust-Kulom between 9 September 2014 and 8 July 2017. Each dot is a new record.

When Ust-Kulom set new all-time records
Date	Kind	Detail
2014-09-09	Record daily precipitation	Record daily precipitation 99.3 mm (3.9 in)
2017-07-08	Record daily precipitation	Record daily precipitation 110.0 mm (4.3 in)

Wettest Day of Each Month

Jul: 110.0 mm (4.3 in)

The wettest day on record for each calendar month at Ust-Kulom. The most was 110.0 mm (4.3 in) on 8 July 2017.

Record daily precipitation for each month at Ust-Kulom
Month	Record daily precipitation (mm)	Date
Jan	34.3 mm (1.4 in)	1 January 1975
Feb	15.8 mm (0.6 in)	17 February 1978
Mar	23.1 mm (0.9 in)	22 March 1974
Apr	33.5 mm (1.3 in)	16 April 1974
May	29.0 mm (1.1 in)	30 May 2018
Jun	37.9 mm (1.5 in)	3 June 1961
Jul	110.0 mm (4.3 in)	8 July 2017
Aug	91.4 mm (3.6 in)	12 August 1952
Sep	99.3 mm (3.9 in)	9 September 2014
Oct	41.9 mm (1.6 in)	13 October 1973
Nov	50.0 mm (2.0 in)	15 November 1996
Dec	17.4 mm (0.7 in)	20 December 1968

Period of Record Coverage

1949 to 2025

71 years of record at Ust-Kulom, 1949 to 2025. 71 years have data for under 90 percent of days and are left out of rankings: 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956 and others.

Days with data per year at Ust-Kulom
Year	Days with data	Share of year	Complete
1949	54	15%	No
1950	124	34%	No
1951	158	43%	No
1952	149	41%	No
1953	119	33%	No
1954	159	44%	No
1955	113	31%	No
1956	10	3%	No
1957	7	2%	No
1958	2	1%	No
1959	66	18%	No
1960	168	46%	No
1961	307	84%	No
1962	275	75%	No
1963	292	80%	No
1969	306	84%	No
1970	284	78%	No
1971	154	42%	No
1973	261	72%	No
1974	252	69%	No
1975	255	70%	No
1976	274	75%	No
1977	262	72%	No
1978	273	75%	No
1979	287	79%	No
1980	292	80%	No
1981	294	81%	No
1982	273	75%	No
1983	274	75%	No
1984	277	76%	No
1985	278	76%	No
1986	281	77%	No
1987	273	75%	No
1988	268	73%	No
1989	270	74%	No
1990	281	77%	No
1991	267	73%	No
1992	292	80%	No
1993	275	75%	No
1994	224	61%	No
1995	106	29%	No
1996	129	35%	No
1997	280	77%	No
1998	257	70%	No
1999	281	77%	No
2000	278	76%	No
2001	247	68%	No
2002	248	68%	No
2003	197	54%	No
2004	158	43%	No
2005	286	78%	No
2006	294	81%	No
2007	297	81%	No
2008	282	77%	No
2009	287	79%	No
2010	300	82%	No
2011	294	81%	No
2012	307	84%	No
2013	103	28%	No
2014	49	13%	No
2015	252	69%	No
2016	289	79%	No
2017	278	76%	No
2018	286	78%	No
2019	276	76%	No
2020	276	75%	No
2021	286	78%	No
2022	290	79%	No
2023	286	78%	No
2024	279	76%	No
2025	203	56%	No

Latest Records

Latest records at Ust-Kulom
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 June 2025	Ust-Kulom, RU	daily low min	1.6 C (34.9 F)	0.4 C (0.7 F)	47 years	21 of 100 (Routine)
10 June 2025	Ust-Kulom, RU	daily high min	17.3 C (63.1 F)	0.9 C (1.6 F)	27 years	16 of 100 (Routine)
29 May 2025	Ust-Kulom, RU	daily high max	28.9 C (84.0 F)	0.9 C (1.6 F)	34 years	18 of 100 (Routine)
27 May 2025	Ust-Kulom, RU	daily high max	28.0 C (82.4 F)	1.6 C (2.9 F)	34 years	19 of 100 (Routine)
27 May 2025	Ust-Kulom, RU	daily high min	15.7 C (60.3 F)	0.2 C (0.4 F)	20 years	13 of 100 (Routine)
6 May 2025	Ust-Kulom, RU	daily rain	12.4 mm (0.5 in)	3.5 mm (0.14 in)	2 years	17 of 100 (Routine)
3 May 2025	Ust-Kulom, RU	daily rain (Tie)	7.1 mm (0.28 in)	tie	2 years	2 of 100 (Routine)
4 April 2025	Ust-Kulom, RU	daily rain	8.1 mm (0.32 in)	2.0 mm (0.08 in)	3 years	14 of 100 (Routine)
30 March 2025	Ust-Kulom, RU	daily high max	12.3 C (54.1 F)	1.4 C (2.5 F)	32 years	18 of 100 (Routine)
29 March 2025	Ust-Kulom, RU	daily high min	2.5 C (36.5 F)	1.2 C (2.2 F)	32 years	17 of 100 (Routine)
24 March 2025	Ust-Kulom, RU	daily high max	8.7 C (47.7 F)	0.8 C (1.4 F)	39 years	19 of 100 (Routine)
15 March 2025	Ust-Kulom, RU	daily high max (Tie)	5.4 C (41.7 F)	tie	36 years	4 of 100 (Routine)
26 February 2025	Ust-Kulom, RU	daily high max	2.3 C (36.1 F)	1.1 C (2.0 F)	23 years	14 of 100 (Routine)
12 February 2025	Ust-Kulom, RU	daily rain	5.1 mm (0.20 in)	0.3 mm (0.01 in)	39 years	20 of 100 (Routine)
1 February 2025	Ust-Kulom, RU	daily high max	1.5 C (34.7 F)	0.4 C (0.7 F)	64 years	26 of 100 (Routine)
31 January 2025	Ust-Kulom, RU	daily high max	0.5 C (32.9 F)	2.0 C (3.6 F)	1 year	9 of 100 (Routine)
28 January 2025	Ust-Kulom, RU	daily rain	9.9 mm (0.39 in)	2.8 mm (0.11 in)	7 years	20 of 100 (Routine)
9 January 2025	Ust-Kulom, RU	daily high max	0.3 C (32.5 F)	0.6 C (1.1 F)	34 years	17 of 100 (Routine)
21 December 2024	Ust-Kulom, RU	daily rain	6.1 mm (0.24 in)	1.1 mm (0.04 in)	72 years	20 of 100 (Routine)
24 November 2024	Ust-Kulom, RU	daily rain	10.9 mm (0.4 in)	4.1 mm (0.16 in)	35 years	20 of 100 (Routine)

Extremes by Year

1936 to 2025

Yearly extremes at Ust-Kulom: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	38.5 C (101.3 F)	1982	31.0 C (87.8 F)	71
Coldest night (TNn)	-47.0 C (-52.6 F)	1979	-37.6 C (-35.7 F)	71
Wettest day (Rx1day)	110.0 mm (4.3 in)	2017	25.9 mm (1.0 in)	83
Wettest five days (Rx5day)	115.3 mm (4.5 in)	2017	45.5 mm (1.8 in)	77
Longest dry spell (CDD)	47 days	1969	16 days	83

Hottest day (TXx)

The hottest day of the year at Ust-Kulom, 1936 to 2025. The record is 38.5 C (101.3 F) in 1982, marked on the chart; the median year is 31.0 C (87.8 F).

Hottest day (TXx) at Ust-Kulom 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	20.0 C (68.0 F)
1950	22.2 C (72.0 F)
1951	32.2 C (90.0 F)
1952	28.9 C (84.0 F)
1953	32.2 C (90.0 F)
1954	32.2 C (90.0 F)
1955	32.2 C (90.0 F)
1956	3.9 C (39.0 F)
1957	17.2 C (63.0 F)
1958	-3.9 C (25.0 F)
1959	27.8 C (82.0 F)
1960	27.8 C (82.0 F)
1961	30.0 C (86.0 F)
1962	37.2 C (99.0 F)
1963	33.9 C (93.0 F)
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	28.9 C (84.0 F)
1970	28.9 C (84.0 F)
1971	25.0 C (77.0 F)
1973	31.0 C (87.8 F)
1974	31.0 C (87.8 F)
1975	28.0 C (82.4 F)
1976	28.0 C (82.4 F)
1977	30.0 C (86.0 F)
1978	29.0 C (84.2 F)
1979	28.0 C (82.4 F)
1980	29.0 C (84.2 F)
1981	31.0 C (87.8 F)
1982	38.5 C (101.3 F)
1983	31.4 C (88.5 F)
1984	28.9 C (84.0 F)
1985	30.8 C (87.4 F)
1986	28.1 C (82.6 F)
1987	33.5 C (92.3 F)
1988	32.7 C (90.9 F)
1989	32.8 C (91.0 F)
1990	33.5 C (92.3 F)
1991	33.1 C (91.6 F)
1992	29.1 C (84.4 F)
1993	27.5 C (81.5 F)
1994	26.2 C (79.2 F)
1995	29.6 C (85.3 F)
1996	29.9 C (85.8 F)
1997	29.1 C (84.4 F)
1998	33.2 C (91.8 F)
1999	32.1 C (89.8 F)
2000	33.7 C (92.7 F)
2001	31.2 C (88.2 F)
2002	32.4 C (90.3 F)
2003	33.4 C (92.1 F)
2004	32.7 C (90.9 F)
2005	31.7 C (89.1 F)
2006	35.1 C (95.2 F)
2007	33.7 C (92.7 F)
2008	33.2 C (91.8 F)
2009	29.5 C (85.1 F)
2010	34.3 C (93.7 F)
2011	32.6 C (90.7 F)
2012	31.2 C (88.2 F)
2013	32.6 C (90.7 F)
2014	23.0 C (73.4 F)
2015	31.2 C (88.2 F)
2016	30.9 C (87.6 F)
2017	29.7 C (85.5 F)
2018	32.3 C (90.1 F)
2019	28.8 C (83.8 F)
2020	31.5 C (88.7 F)
2021	30.4 C (86.7 F)
2022	31.7 C (89.1 F)
2023	31.4 C (88.5 F)
2024	34.5 C (94.1 F)
2025	30.3 C (86.5 F)

Coldest night (TNn)

The coldest night of the year at Ust-Kulom, 1936 to 2025. The record is -47.0 C (-52.6 F) in 1979, marked on the chart; the median year is -37.6 C (-35.7 F).

Coldest night (TNn) at Ust-Kulom 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	-36.1 C (-33.0 F)
1950	-42.8 C (-45.0 F)
1951	-42.2 C (-44.0 F)
1952	-38.9 C (-38.0 F)
1953	-35.0 C (-31.0 F)
1954	-33.9 C (-29.0 F)
1955	-33.9 C (-29.0 F)
1956	-33.9 C (-29.0 F)
1957	-37.2 C (-35.0 F)
1958	-13.9 C (7.0 F)
1959	-32.2 C (-26.0 F)
1960	-36.1 C (-33.0 F)
1961	-35.0 C (-31.0 F)
1962	-36.1 C (-33.0 F)
1963	-40.0 C (-40.0 F)
1964	n/a
1965	n/a
1966	n/a
1967	n/a
1968	n/a
1969	-45.0 C (-49.0 F)
1970	-43.9 C (-47.0 F)
1971	-37.2 C (-35.0 F)
1973	-46.0 C (-50.8 F)
1974	-37.0 C (-34.6 F)
1975	-35.0 C (-31.0 F)
1976	-42.0 C (-43.6 F)
1977	-41.0 C (-41.8 F)
1978	-42.0 C (-43.6 F)
1979	-47.0 C (-52.6 F)
1980	-40.0 C (-40.0 F)
1981	-33.0 C (-27.4 F)
1982	-43.3 C (-45.9 F)
1983	-34.5 C (-30.1 F)
1984	-40.5 C (-40.9 F)
1985	-41.0 C (-41.8 F)
1986	-40.1 C (-40.2 F)
1987	-46.1 C (-51.0 F)
1988	-30.6 C (-23.1 F)
1989	-38.3 C (-36.9 F)
1990	-38.1 C (-36.6 F)
1991	-39.0 C (-38.2 F)
1992	-38.3 C (-36.9 F)
1993	-37.1 C (-34.8 F)
1994	-34.2 C (-29.6 F)
1995	-14.8 C (5.4 F)
1996	-37.9 C (-36.2 F)
1997	-39.6 C (-39.3 F)
1998	-37.1 C (-34.8 F)
1999	-38.7 C (-37.7 F)
2000	-37.6 C (-35.7 F)
2001	-35.7 C (-32.3 F)
2002	-35.5 C (-31.9 F)
2003	-40.0 C (-40.0 F)
2004	-24.3 C (-11.7 F)
2005	-27.3 C (-17.1 F)
2006	-37.9 C (-36.2 F)
2007	-32.7 C (-26.9 F)
2008	-30.6 C (-23.1 F)
2009	-44.1 C (-47.4 F)
2010	-37.9 C (-36.2 F)
2011	-34.3 C (-29.7 F)
2012	-34.1 C (-29.4 F)
2013	-36.4 C (-33.5 F)
2014	-38.2 C (-36.8 F)
2015	-41.3 C (-42.3 F)
2016	-39.4 C (-38.9 F)
2017	-39.2 C (-38.6 F)
2018	-34.7 C (-30.5 F)
2019	-33.9 C (-29.0 F)
2020	-32.9 C (-27.2 F)
2021	-41.0 C (-41.8 F)
2022	-31.9 C (-25.4 F)
2023	-38.3 C (-36.9 F)
2024	-37.6 C (-35.7 F)
2025	-28.6 C (-19.5 F)

Wettest day (Rx1day)

The wettest day of the year at Ust-Kulom, 1936 to 2025. The record is 110.0 mm (4.3 in) in 2017, marked on the chart; the median year is 25.9 mm (1.0 in).

Wettest day (Rx1day) at Ust-Kulom by year
Year	Wettest day (Rx1day)
1936	17.9 mm (0.7 in)
1937	24.3 mm (1.0 in)
1938	21.4 mm (0.8 in)
1939	23.7 mm (0.9 in)
1940	19.8 mm (0.8 in)
1941	27.4 mm (1.1 in)
1942	32.0 mm (1.3 in)
1943	25.4 mm (1.0 in)
1944	34.4 mm (1.4 in)
1945	18.1 mm (0.7 in)
1946	13.0 mm (0.5 in)
1947	16.2 mm (0.6 in)
1948	28.4 mm (1.1 in)
1949	17.9 mm (0.7 in)
1950	26.6 mm (1.0 in)
1951	29.0 mm (1.1 in)
1952	91.4 mm (3.6 in)
1953	25.0 mm (1.0 in)
1954	23.0 mm (0.9 in)
1955	34.4 mm (1.4 in)
1956	30.7 mm (1.2 in)
1957	20.1 mm (0.8 in)
1958	33.4 mm (1.3 in)
1959	40.9 mm (1.6 in)
1960	25.8 mm (1.0 in)
1961	37.9 mm (1.5 in)
1962	25.3 mm (1.0 in)
1963	15.9 mm (0.6 in)
1964	34.3 mm (1.4 in)
1965	33.7 mm (1.3 in)
1966	25.4 mm (1.0 in)
1967	14.5 mm (0.6 in)
1968	19.9 mm (0.8 in)
1969	20.1 mm (0.8 in)
1970	27.7 mm (1.1 in)
1971	31.0 mm (1.2 in)
1973	41.9 mm (1.6 in)
1974	33.5 mm (1.3 in)
1975	34.3 mm (1.4 in)
1976	20.0 mm (0.8 in)
1977	27.6 mm (1.1 in)
1978	29.8 mm (1.2 in)
1979	19.3 mm (0.8 in)
1980	23.5 mm (0.9 in)
1981	25.0 mm (1.0 in)
1982	23.6 mm (0.9 in)
1983	25.4 mm (1.0 in)
1984	20.8 mm (0.8 in)
1985	19.8 mm (0.8 in)
1986	38.6 mm (1.5 in)
1987	29.4 mm (1.2 in)
1988	27.4 mm (1.1 in)
1989	29.3 mm (1.2 in)
1990	31.4 mm (1.2 in)
1991	21.7 mm (0.9 in)
1992	25.9 mm (1.0 in)
1993	34.2 mm (1.3 in)
1994	27.8 mm (1.1 in)
1995	40.4 mm (1.6 in)
1996	50.0 mm (2.0 in)
1997	13.0 mm (0.5 in)
1998	69.1 mm (2.7 in)
1999	28.2 mm (1.1 in)
2000	0.0 mm (0.00 in)
2001	49.3 mm (1.9 in)
2002	8.9 mm (0.35 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	22.1 mm (0.9 in)
2013	28.7 mm (1.1 in)
2014	99.3 mm (3.9 in)
2015	39.9 mm (1.6 in)
2016	27.9 mm (1.1 in)
2017	110.0 mm (4.3 in)
2018	36.1 mm (1.4 in)
2019	56.9 mm (2.2 in)
2020	24.9 mm (1.0 in)
2021	23.9 mm (0.9 in)
2022	23.9 mm (0.9 in)
2023	17.0 mm (0.7 in)
2024	20.1 mm (0.8 in)
2025	27.9 mm (1.1 in)

Wettest five days (Rx5day)

The wettest five days of the year at Ust-Kulom, 1936 to 2025. The record is 115.3 mm (4.5 in) in 2017, marked on the chart; the median year is 45.5 mm (1.8 in).

Wettest five days (Rx5day) at Ust-Kulom by year
Year	Wettest five days (Rx5day)
1936	22.5 mm (0.9 in)
1937	30.7 mm (1.2 in)
1938	42.6 mm (1.7 in)
1939	41.4 mm (1.6 in)
1940	37.1 mm (1.5 in)
1941	40.3 mm (1.6 in)
1942	52.0 mm (2.0 in)
1943	35.1 mm (1.4 in)
1944	51.1 mm (2.0 in)
1945	29.1 mm (1.1 in)
1946	13.5 mm (0.5 in)
1947	28.1 mm (1.1 in)
1948	41.4 mm (1.6 in)
1949	35.6 mm (1.4 in)
1950	44.6 mm (1.8 in)
1951	46.4 mm (1.8 in)
1952	108.8 mm (4.3 in)
1953	46.4 mm (1.8 in)
1954	36.0 mm (1.4 in)
1955	34.4 mm (1.4 in)
1956	37.4 mm (1.5 in)
1957	39.9 mm (1.6 in)
1958	52.3 mm (2.1 in)
1959	42.6 mm (1.7 in)
1960	41.2 mm (1.6 in)
1961	41.2 mm (1.6 in)
1962	63.8 mm (2.5 in)
1963	47.7 mm (1.9 in)
1964	58.7 mm (2.3 in)
1965	63.8 mm (2.5 in)
1966	46.4 mm (1.8 in)
1967	28.0 mm (1.1 in)
1968	55.1 mm (2.2 in)
1969	39.5 mm (1.6 in)
1970	40.9 mm (1.6 in)
1971	42.2 mm (1.7 in)
1973	48.3 mm (1.9 in)
1974	52.1 mm (2.1 in)
1975	44.9 mm (1.8 in)
1976	32.6 mm (1.3 in)
1977	50.8 mm (2.0 in)
1978	52.5 mm (2.1 in)
1979	30.5 mm (1.2 in)
1980	40.3 mm (1.6 in)
1981	29.4 mm (1.2 in)
1982	45.5 mm (1.8 in)
1983	51.8 mm (2.0 in)
1984	51.6 mm (2.0 in)
1985	36.9 mm (1.5 in)
1986	61.2 mm (2.4 in)
1987	61.2 mm (2.4 in)
1988	69.9 mm (2.8 in)
1989	44.7 mm (1.8 in)
1990	64.6 mm (2.5 in)
1991	45.6 mm (1.8 in)
1992	66.1 mm (2.6 in)
1993	91.5 mm (3.6 in)
1994	37.6 mm (1.5 in)
1995	54.1 mm (2.1 in)
1996	26.3 mm (1.0 in)
1997	12.0 mm (0.5 in)
1998	13.4 mm (0.5 in)
1999	51.3 mm (2.0 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	45.3 mm (1.8 in)
2013	61.7 mm (2.4 in)
2014	109.0 mm (4.3 in)
2015	53.9 mm (2.1 in)
2016	55.1 mm (2.2 in)
2017	115.3 mm (4.5 in)
2018	47.3 mm (1.9 in)
2019	82.8 mm (3.3 in)
2020	39.3 mm (1.5 in)
2021	46.2 mm (1.8 in)
2022	50.8 mm (2.0 in)
2023	45.5 mm (1.8 in)
2024	51.8 mm (2.0 in)
2025	43.9 mm (1.7 in)

Longest dry spell (CDD)

The longest dry spell of the year at Ust-Kulom, 1936 to 2025. The record is 47 days in 1969, marked on the chart; the median year is 16 days.

Longest dry spell (CDD) at Ust-Kulom by year
Year	Longest dry spell (CDD)
1936	36 days
1937	20 days
1938	15 days
1939	14 days
1940	12 days
1941	10 days
1942	11 days
1943	14 days
1944	19 days
1945	20 days
1946	13 days
1947	21 days
1948	12 days
1949	16 days
1950	23 days
1951	10 days
1952	23 days
1953	20 days
1954	26 days
1955	14 days
1956	14 days
1957	13 days
1958	24 days
1959	20 days
1960	23 days
1961	14 days
1962	15 days
1963	22 days
1964	15 days
1965	27 days
1966	15 days
1967	23 days
1968	20 days
1969	47 days
1970	14 days
1971	23 days
1973	11 days
1974	18 days
1975	15 days
1976	20 days
1977	10 days
1978	19 days
1979	16 days
1980	12 days
1981	22 days
1982	20 days
1983	15 days
1984	28 days
1985	14 days
1986	23 days
1987	24 days
1988	20 days
1989	15 days
1990	20 days
1991	11 days
1992	22 days
1993	26 days
1994	14 days
1995	18 days
1996	32 days
1997	1 day
1998	3 days
1999	11 days
2000	1 day
2001	1 day
2002	1 day
2003	1 day
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	9 days
2013	12 days
2014	16 days
2015	12 days
2016	17 days
2017	18 days
2018	16 days
2019	13 days
2020	14 days
2021	15 days
2022	17 days
2023	16 days
2024	16 days
2025	21 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

58 years, 1936 to 2024

A day with at least 25.9 mm (1.0 in) of rain is expected about once in 2 years. A day with at least 87.8 mm (3.5 in) of rain is expected about once in 100 years.

Rainfall return levels at Ust-Kulom: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	25.9 mm (1.0 in)
5 years	35.6 mm (1.4 in)
10 years	44.2 mm (1.7 in)
25 years	58.2 mm (2.3 in)
50 years	71.5 mm (2.8 in)
100 years	87.8 mm (3.5 in)	Longer than the 58 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, 58 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: 110.0 mm (4.3 in) in 2017; 91.4 mm (3.6 in) in 1952; 56.9 mm (2.2 in) in 2019.

Download the Data

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