Viljujsk Threshold Days by Year (RSM00024641)

13 fixed thresholds counted per year at Viljujsk (RSM00024641): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Viljujsk Thresholds

Viljujsk: days with 10 mm (0.39 in) or more of precipitation in 117 years, most in 1982 with 10.
Viljujsk: nights with a minimum temperature at or below 0 C (32 F) in 114 years, most in 1946 with 259.
Viljujsk: nights with a minimum temperature at or below -10 C (14 F) in 114 years, most in 1957 with 206.
Viljujsk: nights with a minimum temperature at or below -20 C (-4 F) in 114 years, most in 1958 with 170.
13 fixed thresholds have at least one qualifying day at Viljujsk.

Days at or above 30 C (86 F)

85 years with a qualifying day

Days per year at Viljujsk with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 20 in 1986.

Days at or above 30 C (86 F) per year at Viljujsk
Year	Days	Decade average
1931	3	5.7
1932	9	5.7
1933	1	5.7
1934	13	5.7
1935	5	5.7
1936	7	5.7
1937	10	5.7
1938	2	5.7
1939	1	5.7
1940	5	7.6
1941	16	7.6
1942	7	7.6
1944	2	7.6
1946	7	7.6
1947	15	7.6
1948	5	7.6
1949	4	7.6
1950	3	6
1951	1	6
1952	7	6
1953	7	6
1954	14	6
1955	4	6
1956	9	6
1957	5	6
1958	3	6
1959	7	6
1960	8	7.8
1961	1	7.8
1962	9	7.8
1963	6	7.8
1964	10	7.8
1965	9	7.8
1966	5	7.8
1967	7	7.8
1968	10	7.8
1969	13	7.8
1970	18	7.2
1971	8	7.2
1972	2	7.2
1973	16	7.2
1974	1	7.2
1975	9	7.2
1976	4	7.2
1977	2	7.2
1978	7	7.2
1979	5	7.2
1980	15	8.1
1981	4	8.1
1982	4	8.1
1983	7	8.1
1984	12	8.1
1985	2	8.1
1986	20	8.1
1988	8	8.1
1989	1	8.1
1990	12	11.1
1991	12	11.1
1992	8	11.1
1993	13	11.1
1995	9	11.1
1996	9	11.1
1997	5	11.1
1998	16	11.1
1999	16	11.1
2000	4	9.7
2001	15	9.7
2002	14	9.7
2003	18	9.7
2004	2	9.7
2005	5	9.7
2006	12	9.7
2007	2	9.7
2008	10	9.7
2009	15	9.7
2010	16	11
2011	7	11
2012	14	11
2013	10	11
2014	12	11
2015	11	11
2016	6	11
2017	15	11
2018	8	11
2025	4	4

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

First to last qualifying date each year at Viljujsk
Year	First date	Last date
1931	1931-06-27	1931-08-02
1932	1932-07-01	1932-08-02
1933	1933-06-24	1933-06-24
1934	1934-06-15	1934-07-27
1935	1935-06-28	1935-07-07
1936	1936-07-18	1936-07-29
1937	1937-07-03	1937-07-29
1938	1938-07-13	1938-07-23
1939	1939-07-07	1939-07-07
1940	1940-06-30	1940-07-23
1941	1941-06-15	1941-08-01
1942	1942-06-30	1942-07-27
1944	1944-07-19	1944-08-02
1946	1946-07-06	1946-07-24
1947	1947-06-14	1947-07-24
1948	1948-07-04	1948-08-19
1949	1949-06-06	1949-08-11
1950	1950-06-21	1950-06-23
1951	1951-07-21	1951-07-21
1952	1952-07-02	1952-08-03
1953	1953-07-17	1953-08-27
1954	1954-06-24	1954-08-08
1955	1955-06-14	1955-08-13
1956	1956-06-17	1956-07-19
1957	1957-07-04	1957-08-04
1958	1958-07-23	1958-07-25
1959	1959-06-06	1959-08-21
1960	1960-06-23	1960-07-13
1961	1961-08-01	1961-08-01
1962	1962-06-24	1962-08-05
1963	1963-07-19	1963-08-05
1964	1964-06-27	1964-07-14
1965	1965-07-07	1965-08-07
1966	1966-06-16	1966-07-02
1967	1967-07-02	1967-07-20
1968	1968-06-20	1968-07-29
1969	1969-06-17	1969-08-12
1970	1970-06-22	1970-07-23
1971	1971-06-05	1971-07-21
1972	1972-07-04	1972-07-28
1973	1973-06-09	1973-08-06
1974	1974-07-15	1974-07-15
1975	1975-06-03	1975-08-07
1976	1976-06-17	1976-07-28
1977	1977-07-12	1977-07-13
1978	1978-06-10	1978-07-27
1979	1979-06-16	1979-08-02
1980	1980-07-09	1980-08-14
1981	1981-06-09	1981-07-17
1982	1982-07-18	1982-07-28
1983	1983-06-18	1983-08-20
1984	1984-06-21	1984-07-22
1985	1985-07-01	1985-07-02
1986	1986-06-01	1986-08-09
1988	1988-06-02	1988-07-28
1989	1989-07-07	1989-07-07
1990	1990-05-24	1990-08-13
1991	1991-07-04	1991-07-20
1992	1992-06-16	1992-08-14
1993	1993-06-26	1993-07-29
1995	1995-06-26	1995-08-05
1996	1996-06-15	1996-07-19
1997	1997-06-19	1997-07-20
1998	1998-06-12	1998-08-19
1999	1999-06-17	1999-07-22
2000	2000-06-07	2000-08-08
2001	2001-06-11	2001-07-26
2002	2002-06-16	2002-07-20
2003	2003-06-27	2003-08-10
2004	2004-07-07	2004-07-08
2005	2005-06-30	2005-07-08
2006	2006-06-17	2006-07-31
2007	2007-06-29	2007-06-30
2008	2008-06-23	2008-07-26
2009	2009-06-04	2009-08-07
2010	2010-06-12	2010-08-24
2011	2011-07-09	2011-08-08
2012	2012-06-14	2012-08-02
2013	2013-06-12	2013-07-31
2014	2014-06-19	2014-07-18
2015	2015-06-11	2015-08-23
2016	2016-06-29	2016-07-29
2017	2017-06-13	2017-08-15
2018	2018-06-05	2018-07-07
2025	2025-07-16	2025-07-21

Every Fixed Threshold

Fixed thresholds at Viljujsk
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	85	20	1986	4
35 C (95 F): Days	25	4	2010	2
90 F (32.2 C): Days	69	10	1970	1
0 C (32 F): Ice days (max	88	209	1956	79
0 C (32 F): Frost days (min	114	259	1946	80
-10 C (14 F): Days with min	114	206	1957	61
-20 C (-4 F): Days with min	114	170	1958	51
-30 C (-22 F): Days with min	114	128	1966	37
-40 C (-40 F): Days with min	114	84	1952	14
20 C (68 F): Tropical nights (min	30	4	1970	1
10 mm (0.39 in): Days with 10 mm or more rain	117	10	1982	4
25 mm (0.98 in): Days with 25 mm or more rain	49	4	1961	1
50 mm (1.97 in): Days with 50 mm or more rain	8	1	1937	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1931.

Download the Data

Data for Viljujsk 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).

Viljujsk Threshold Days by Year (RSM00024641)

Key Facts for Viljujsk Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

Related