Omsk Threshold Days by Year (RSM00028698)

16 fixed thresholds counted per year at Omsk (RSM00028698): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Omsk Thresholds

Omsk: days with 10 mm (0.39 in) or more of precipitation in 101 years, most in 1938 with 16.
Omsk: nights with a minimum temperature at or below 0 C (32 F) in 100 years, most in 1934 with 216.
Omsk: nights with a minimum temperature at or below -10 C (14 F) in 100 years, most in 1952 with 155.
Omsk: nights with a minimum temperature at or below -20 C (-4 F) in 100 years, most in 1954 with 97.
16 fixed thresholds have at least one qualifying day at Omsk.

Days at or above 30 C (86 F)

91 years with a qualifying day

Days per year at Omsk with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 42 in 1952.

Days at or above 30 C (86 F) per year at Omsk
Year	Days	Decade average
1925	11	8.8
1926	7	8.8
1928	4	8.8
1929	13	8.8
1930	8	9.7
1931	21	9.7
1932	12	9.7
1933	9	9.7
1934	2	9.7
1935	7	9.7
1936	15	9.7
1937	10	9.7
1938	2	9.7
1939	11	9.7
1940	22	10.4
1941	3	10.4
1942	7	10.4
1943	11	10.4
1944	6	10.4
1945	5	10.4
1947	1	10.4
1948	17	10.4
1949	22	10.4
1950	3	14.1
1951	14	14.1
1952	42	14.1
1953	14	14.1
1954	6	14.1
1955	26	14.1
1956	10	14.1
1957	13	14.1
1958	7	14.1
1959	6	14.1
1960	6	14.1
1961	8	14.1
1962	11	14.1
1963	16	14.1
1964	4	14.1
1965	34	14.1
1966	14	14.1
1967	16	14.1
1968	12	14.1
1969	20	14.1
1970	12	11.3
1971	8	11.3
1972	3	11.3
1973	9	11.3
1974	18	11.3
1975	18	11.3
1976	9	11.3
1977	20	11.3
1978	11	11.3
1979	5	11.3
1980	10	11
1981	6	11
1982	20	11
1983	13	11
1984	6	11
1985	2	11
1986	1	11
1987	12	11
1988	15	11
1989	25	11
1990	14	13.7
1991	21	13.7
1992	8	13.7
1993	5	13.7
1994	8	13.7
1995	9	13.7
1996	3	13.7
1997	11	13.7
1998	34	13.7
1999	24	13.7
2000	17	10.9
2001	7	10.9
2003	7	10.9
2004	18	10.9
2005	12	10.9
2006	12	10.9
2007	8	10.9
2008	10	10.9
2009	7	10.9
2010	15	10.1
2011	7	10.1
2012	24	10.1
2013	3	10.1
2014	11	10.1
2015	13	10.1
2016	3	10.1
2017	12	10.1
2018	3	10.1

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

First to last qualifying date each year at Omsk
Year	First date	Last date
1925	1925-05-24	1925-08-05
1926	1926-06-14	1926-07-27
1928	1928-06-25	1928-07-29
1929	1929-06-04	1929-08-22
1930	1930-05-17	1930-07-25
1931	1931-06-12	1931-07-30
1932	1932-06-10	1932-08-27
1933	1933-05-18	1933-08-07
1934	1934-05-31	1934-06-04
1935	1935-06-16	1935-08-19
1936	1936-05-30	1936-08-16
1937	1937-06-08	1937-08-15
1938	1938-05-07	1938-05-09
1939	1939-05-10	1939-09-27
1940	1940-06-11	1940-08-23
1941	1941-06-23	1941-07-09
1942	1942-06-06	1942-08-10
1943	1943-05-31	1943-09-06
1944	1944-06-14	1944-09-13
1945	1945-06-14	1945-06-23
1947	1947-06-07	1947-06-07
1948	1948-05-22	1948-08-18
1949	1949-06-14	1949-08-24
1950	1950-06-05	1950-07-18
1951	1951-06-17	1951-09-12
1952	1952-05-21	1952-09-14
1953	1953-05-28	1953-09-01
1954	1954-06-18	1954-08-08
1955	1955-05-19	1955-08-09
1956	1956-06-29	1956-08-16
1957	1957-05-29	1957-07-16
1958	1958-06-18	1958-08-20
1959	1959-05-23	1959-07-13
1960	1960-06-14	1960-06-26
1961	1961-05-18	1961-06-27
1962	1962-05-12	1962-08-24
1963	1963-06-08	1963-07-06
1964	1964-06-16	1964-07-22
1965	1965-05-14	1965-08-15
1966	1966-07-04	1966-09-12
1967	1967-06-05	1967-07-20
1968	1968-05-10	1968-08-07
1969	1969-06-13	1969-07-28
1970	1970-05-29	1970-08-02
1971	1971-06-15	1971-09-24
1972	1972-05-30	1972-06-05
1973	1973-06-01	1973-07-28
1974	1974-05-20	1974-08-18
1975	1975-05-26	1975-08-29
1976	1976-06-05	1976-08-20
1977	1977-05-23	1977-07-22
1978	1978-06-16	1978-08-13
1979	1979-06-04	1979-07-29
1980	1980-05-23	1980-07-06
1981	1981-06-20	1981-08-10
1982	1982-04-29	1982-09-06
1983	1983-06-07	1983-07-29
1984	1984-06-17	1984-08-29
1985	1985-06-28	1985-06-29
1986	1986-07-01	1986-07-01
1987	1987-05-27	1987-08-17
1988	1988-06-04	1988-07-29
1989	1989-06-13	1989-08-05
1990	1990-06-08	1990-09-15
1991	1991-05-09	1991-07-27
1992	1992-05-16	1992-07-15
1993	1993-06-29	1993-08-18
1994	1994-06-05	1994-07-01
1995	1995-06-27	1995-08-14
1996	1996-05-19	1996-07-18
1997	1997-05-25	1997-08-07
1998	1998-05-30	1998-08-13
1999	1999-05-22	1999-08-26
2000	2000-06-19	2000-09-09
2001	2001-05-08	2001-08-17
2003	2003-06-28	2003-09-07
2004	2004-05-13	2004-08-14
2005	2005-06-04	2005-08-17
2006	2006-05-24	2006-09-09
2007	2007-06-21	2007-09-03
2008	2008-06-20	2008-08-14
2009	2009-06-05	2009-07-08
2010	2010-04-27	2010-08-31
2011	2011-06-29	2011-08-15
2012	2012-06-02	2012-08-12
2013	2013-06-22	2013-07-14
2014	2014-05-16	2014-08-24
2015	2015-06-04	2015-09-09
2016	2016-07-13	2016-08-26
2017	2017-05-22	2017-08-28
2018	2018-06-06	2018-08-09

Every Fixed Threshold

Fixed thresholds at Omsk
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	91	42	1952	3
35 C (95 F): Days	32	9	1952	6
40 C (104 F): Days	2	1	1936	1
90 F (32.2 C): Days	74	22	1952	1
100 F (37.8 C): Days	8	3	1940	1
0 C (32 F): Ice days (max	94	166	1952	18
0 C (32 F): Frost days (min	100	216	1934	20
-10 C (14 F): Days with min	100	155	1952	16
-20 C (-4 F): Days with min	100	97	1954	2
-30 C (-22 F): Days with min	97	40	1929	12
-40 C (-40 F): Days with min	29	8	1969	2
20 C (68 F): Tropical nights (min	54	7	2006	3
25 C (77 F): Days with min	1	1	2012	1
10 mm (0.39 in): Days with 10 mm or more rain	101	16	1938	6
25 mm (0.98 in): Days with 25 mm or more rain	54	4	1986	1
50 mm (1.97 in): Days with 50 mm or more rain	5	1	1945	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1925.

Download the Data

Data for Omsk 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).

Omsk Threshold Days by Year (RSM00028698)

Key Facts for Omsk Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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