Ust-Moma Threshold Days by Year (RSM00024382)

14 fixed thresholds counted per year at Ust-Moma (RSM00024382): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Ust-Moma Thresholds

Ust-Moma: days with 10 mm (0.39 in) or more of precipitation in 82 years, most in 1942 with 9.
Ust-Moma: nights with a minimum temperature at or below 0 C (32 F) in 81 years, most in 1963 with 282.
Ust-Moma: nights with a minimum temperature at or below -10 C (14 F) in 81 years, most in 1958 with 229.
Ust-Moma: nights with a minimum temperature at or below -20 C (-4 F) in 81 years, most in 1987 with 200.
14 fixed thresholds have at least one qualifying day at Ust-Moma.

Days at or above 30 C (86 F)

72 years with a qualifying day

Days per year at Ust-Moma with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 21 in 1991.

Days at or above 30 C (86 F) per year at Ust-Moma
Year	Days	Decade average
1938	8	4.5
1939	1	4.5
1940	3	4.5
1941	9	4.5
1942	5	4.5
1943	3	4.5
1944	4	4.5
1949	3	4.5
1950	1	3.7
1951	2	3.7
1952	7	3.7
1953	2	3.7
1954	1	3.7
1955	3	3.7
1956	7	3.7
1957	6	3.7
1959	4	3.7
1960	6	5.1
1961	2	5.1
1963	4	5.1
1964	5	5.1
1966	8	5.1
1967	2	5.1
1968	7	5.1
1969	7	5.1
1970	3	8.3
1971	11	8.3
1972	5	8.3
1973	18	8.3
1974	5	8.3
1975	10	8.3
1976	7	8.3
1977	7	8.3
1980	3	5.3
1981	9	5.3
1982	5	5.3
1983	3	5.3
1984	1	5.3
1986	6	5.3
1987	6	5.3
1988	9	5.3
1989	6	5.3
1990	4	7.7
1991	21	7.7
1992	3	7.7
1993	11	7.7
1994	5	7.7
1995	5	7.7
1996	6	7.7
1997	5	7.7
1998	11	7.7
1999	6	7.7
2000	4	8.4
2001	14	8.4
2002	7	8.4
2003	16	8.4
2004	4	8.4
2005	4	8.4
2006	7	8.4
2007	9	8.4
2008	9	8.4
2009	10	8.4
2010	18	6.8
2011	7	6.8
2012	7	6.8
2013	1	6.8
2014	6	6.8
2015	6	6.8
2016	4	6.8
2017	4	6.8
2018	8	6.8
2025	7	7

For each year, a bar from the first to the last day at Ust-Moma meeting 30 C (86 F).

First to last qualifying date each year at Ust-Moma
Year	First date	Last date
1938	1938-06-27	1938-07-28
1939	1939-06-22	1939-06-22
1940	1940-07-14	1940-07-25
1941	1941-07-16	1941-08-08
1942	1942-07-02	1942-07-17
1943	1943-07-01	1943-07-03
1944	1944-08-04	1944-08-07
1949	1949-06-17	1949-06-26
1950	1950-06-09	1950-06-09
1951	1951-08-10	1951-08-15
1952	1952-06-22	1952-08-08
1953	1953-08-04	1953-08-05
1954	1954-07-17	1954-07-17
1955	1955-06-15	1955-08-05
1956	1956-06-21	1956-07-06
1957	1957-07-18	1957-08-04
1959	1959-07-01	1959-07-04
1960	1960-07-03	1960-07-17
1961	1961-07-05	1961-07-23
1963	1963-07-15	1963-08-05
1964	1964-06-28	1964-07-02
1966	1966-06-20	1966-07-04
1967	1967-07-20	1967-07-21
1968	1968-06-30	1968-07-12
1969	1969-07-02	1969-08-08
1970	1970-07-02	1970-07-09
1971	1971-07-04	1971-07-31
1972	1972-07-07	1972-07-23
1973	1973-06-12	1973-08-07
1974	1974-07-09	1974-08-03
1975	1975-06-25	1975-08-09
1976	1976-06-30	1976-08-17
1977	1977-06-16	1977-07-14
1980	1980-07-25	1980-08-02
1981	1981-06-25	1981-07-07
1982	1982-06-23	1982-07-28
1983	1983-06-18	1983-06-23
1984	1984-07-11	1984-07-11
1986	1986-06-22	1986-07-12
1987	1987-06-27	1987-07-27
1988	1988-06-17	1988-07-29
1989	1989-06-17	1989-07-10
1990	1990-06-16	1990-07-05
1991	1991-06-16	1991-08-04
1992	1992-06-09	1992-07-29
1993	1993-06-20	1993-08-11
1994	1994-07-09	1994-07-26
1995	1995-06-22	1995-07-04
1996	1996-06-19	1996-07-17
1997	1997-07-18	1997-08-15
1998	1998-06-08	1998-07-27
1999	1999-06-24	1999-07-04
2000	2000-07-15	2000-07-20
2001	2001-07-06	2001-07-30
2002	2002-06-23	2002-07-26
2003	2003-07-04	2003-08-07
2004	2004-07-04	2004-07-10
2005	2005-07-04	2005-07-10
2006	2006-07-11	2006-08-03
2007	2007-06-19	2007-08-15
2008	2008-06-14	2008-08-24
2009	2009-06-16	2009-07-28
2010	2010-07-03	2010-07-30
2011	2011-06-23	2011-08-02
2012	2012-06-11	2012-07-14
2013	2013-07-07	2013-07-07
2014	2014-07-12	2014-07-20
2015	2015-06-30	2015-07-14
2016	2016-06-04	2016-08-03
2017	2017-06-27	2017-08-16
2018	2018-07-04	2018-07-21
2025	2025-05-30	2025-07-31

Every Fixed Threshold

Fixed thresholds at Ust-Moma
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	72	21	1991	7
35 C (95 F): Days	10	6	2010	3
90 F (32.2 C): Days	46	12	1973	6
100 F (37.8 C): Days	1	1	2010	1
0 C (32 F): Ice days (max	78	216	1960	80
0 C (32 F): Frost days (min	81	282	1963	112
-10 C (14 F): Days with min	81	229	1958	87
-20 C (-4 F): Days with min	81	200	1987	75
-30 C (-22 F): Days with min	81	177	1958	70
-40 C (-40 F): Days with min	81	137	1958	47
20 C (68 F): Tropical nights (min	16	2	2001	1
10 mm (0.39 in): Days with 10 mm or more rain	82	9	1942	5
25 mm (0.98 in): Days with 25 mm or more rain	15	2	2016	1
50 mm (1.97 in): Days with 50 mm or more rain	2	1	2002	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1938.

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Data for Ust-Moma 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). Threshold counts are computed by this site.

Data as of 2025-12-31. Last revised 31 December 2025 (2025-12-31).

Ust-Moma Threshold Days by Year (RSM00024382)

Key Facts for Ust-Moma Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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