Sejmchan Threshold Days by Year (RSM00025703)
12 fixed thresholds counted per year at Sejmchan (RSM00025703): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Sejmchan Thresholds
- Sejmchan: nights with a minimum temperature at or below 0 C (32 F) in 85 years, most in 1992 with 277.
- Sejmchan: nights with a minimum temperature at or below -10 C (14 F) in 85 years, most in 1955 with 218.
- Sejmchan: nights with a minimum temperature at or below -20 C (-4 F) in 85 years, most in 1955 with 187.
- Sejmchan: nights with a minimum temperature at or below -30 C (-22 F) in 85 years, most in 1967 with 143.
- 12 fixed thresholds have at least one qualifying day at Sejmchan.
Days at or above 30 C (86 F)
71 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1936 | 9 | 9 |
| 1942 | 7 | 5.2 |
| 1943 | 5 | 5.2 |
| 1945 | 3 | 5.2 |
| 1946 | 3 | 5.2 |
| 1948 | 2 | 5.2 |
| 1949 | 11 | 5.2 |
| 1951 | 3 | 4.4 |
| 1952 | 7 | 4.4 |
| 1953 | 2 | 4.4 |
| 1954 | 7 | 4.4 |
| 1956 | 7 | 4.4 |
| 1957 | 6 | 4.4 |
| 1958 | 1 | 4.4 |
| 1959 | 2 | 4.4 |
| 1960 | 1 | 2.2 |
| 1961 | 2 | 2.2 |
| 1962 | 1 | 2.2 |
| 1963 | 1 | 2.2 |
| 1964 | 2 | 2.2 |
| 1965 | 1 | 2.2 |
| 1966 | 6 | 2.2 |
| 1967 | 2 | 2.2 |
| 1969 | 4 | 2.2 |
| 1970 | 1 | 5.8 |
| 1971 | 4 | 5.8 |
| 1972 | 3 | 5.8 |
| 1973 | 11 | 5.8 |
| 1974 | 9 | 5.8 |
| 1975 | 8 | 5.8 |
| 1976 | 8 | 5.8 |
| 1977 | 2 | 5.8 |
| 1980 | 1 | 5.1 |
| 1981 | 11 | 5.1 |
| 1982 | 2 | 5.1 |
| 1983 | 5 | 5.1 |
| 1984 | 2 | 5.1 |
| 1986 | 5 | 5.1 |
| 1987 | 2 | 5.1 |
| 1988 | 8 | 5.1 |
| 1989 | 10 | 5.1 |
| 1990 | 5 | 5.4 |
| 1991 | 14 | 5.4 |
| 1992 | 1 | 5.4 |
| 1993 | 6 | 5.4 |
| 1994 | 5 | 5.4 |
| 1995 | 3 | 5.4 |
| 1996 | 4 | 5.4 |
| 1998 | 9 | 5.4 |
| 1999 | 2 | 5.4 |
| 2000 | 10 | 7.5 |
| 2001 | 10 | 7.5 |
| 2002 | 3 | 7.5 |
| 2003 | 14 | 7.5 |
| 2004 | 1 | 7.5 |
| 2005 | 5 | 7.5 |
| 2006 | 11 | 7.5 |
| 2007 | 4 | 7.5 |
| 2008 | 9 | 7.5 |
| 2009 | 8 | 7.5 |
| 2010 | 17 | 6.8 |
| 2011 | 9 | 6.8 |
| 2012 | 7 | 6.8 |
| 2013 | 3 | 6.8 |
| 2014 | 3 | 6.8 |
| 2015 | 7 | 6.8 |
| 2016 | 12 | 6.8 |
| 2017 | 1 | 6.8 |
| 2018 | 5 | 6.8 |
| 2019 | 4 | 6.8 |
| 2025 | 3 | 3 |
| Year | First date | Last date |
|---|---|---|
| 1936 | 1936-06-24 | 1936-08-01 |
| 1942 | 1942-07-03 | 1942-07-19 |
| 1943 | 1943-07-01 | 1943-08-12 |
| 1945 | 1945-07-22 | 1945-07-29 |
| 1946 | 1946-07-05 | 1946-08-02 |
| 1948 | 1948-07-11 | 1948-07-29 |
| 1949 | 1949-06-17 | 1949-07-03 |
| 1951 | 1951-07-05 | 1951-08-13 |
| 1952 | 1952-07-04 | 1952-07-17 |
| 1953 | 1953-08-06 | 1953-08-07 |
| 1954 | 1954-06-19 | 1954-08-01 |
| 1956 | 1956-06-22 | 1956-07-07 |
| 1957 | 1957-07-06 | 1957-08-05 |
| 1958 | 1958-08-08 | 1958-08-08 |
| 1959 | 1959-07-08 | 1959-07-27 |
| 1960 | 1960-07-27 | 1960-07-27 |
| 1961 | 1961-08-03 | 1961-08-08 |
| 1962 | 1962-08-07 | 1962-08-07 |
| 1963 | 1963-08-05 | 1963-08-05 |
| 1964 | 1964-07-02 | 1964-07-23 |
| 1965 | 1965-07-06 | 1965-07-06 |
| 1966 | 1966-06-23 | 1966-07-08 |
| 1967 | 1967-07-21 | 1967-07-26 |
| 1969 | 1969-07-31 | 1969-08-16 |
| 1970 | 1970-07-10 | 1970-07-10 |
| 1971 | 1971-07-22 | 1971-07-31 |
| 1972 | 1972-07-18 | 1972-07-24 |
| 1973 | 1973-07-05 | 1973-08-08 |
| 1974 | 1974-06-11 | 1974-08-03 |
| 1975 | 1975-06-27 | 1975-07-11 |
| 1976 | 1976-07-01 | 1976-08-18 |
| 1977 | 1977-06-20 | 1977-06-23 |
| 1980 | 1980-08-03 | 1980-08-03 |
| 1981 | 1981-06-25 | 1981-08-08 |
| 1982 | 1982-06-23 | 1982-07-14 |
| 1983 | 1983-06-19 | 1983-07-12 |
| 1984 | 1984-07-11 | 1984-07-12 |
| 1986 | 1986-06-25 | 1986-07-03 |
| 1987 | 1987-06-19 | 1987-07-26 |
| 1988 | 1988-06-16 | 1988-07-31 |
| 1989 | 1989-06-08 | 1989-07-04 |
| 1990 | 1990-06-17 | 1990-07-12 |
| 1991 | 1991-06-15 | 1991-08-22 |
| 1992 | 1992-06-10 | 1992-06-10 |
| 1993 | 1993-06-28 | 1993-07-30 |
| 1994 | 1994-07-02 | 1994-07-26 |
| 1995 | 1995-07-04 | 1995-07-07 |
| 1996 | 1996-06-16 | 1996-06-22 |
| 1998 | 1998-06-10 | 1998-07-27 |
| 1999 | 1999-07-07 | 1999-07-08 |
| 2000 | 2000-06-30 | 2000-07-28 |
| 2001 | 2001-07-19 | 2001-08-01 |
| 2002 | 2002-06-25 | 2002-07-12 |
| 2003 | 2003-07-06 | 2003-08-02 |
| 2004 | 2004-07-05 | 2004-07-05 |
| 2005 | 2005-07-06 | 2005-07-20 |
| 2006 | 2006-06-10 | 2006-08-04 |
| 2007 | 2007-06-26 | 2007-07-25 |
| 2008 | 2008-07-19 | 2008-08-26 |
| 2009 | 2009-06-09 | 2009-08-01 |
| 2010 | 2010-07-05 | 2010-08-13 |
| 2011 | 2011-06-24 | 2011-08-03 |
| 2012 | 2012-06-19 | 2012-07-17 |
| 2013 | 2013-07-19 | 2013-07-21 |
| 2014 | 2014-06-15 | 2014-07-19 |
| 2015 | 2015-06-26 | 2015-07-15 |
| 2016 | 2016-07-02 | 2016-08-03 |
| 2017 | 2017-08-04 | 2017-08-04 |
| 2018 | 2018-07-07 | 2018-07-23 |
| 2019 | 2019-07-11 | 2019-07-26 |
| 2025 | 2025-05-30 | 2025-07-29 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 71 | 17 | 2010 | 3 |
| 35 C (95 F): Days | 14 | 4 | 2010 | 1 |
| 90 F (32.2 C): Days | 47 | 10 | 2010 | 1 |
| 0 C (32 F): Ice days (max | 81 | 217 | 1946 | 81 |
| 0 C (32 F): Frost days (min | 85 | 277 | 1992 | 126 |
| -10 C (14 F): Days with min | 85 | 218 | 1955 | 83 |
| -20 C (-4 F): Days with min | 85 | 187 | 1955 | 69 |
| -30 C (-22 F): Days with min | 85 | 143 | 1967 | 57 |
| -40 C (-40 F): Days with min | 85 | 99 | 1967 | 38 |
| 20 C (68 F): Tropical nights (min | 3 | 1 | 1949 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 81 | 11 | 1978 | 4 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 17 | 2 | 2006 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1936.
Download the Data
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 . Last revised (2025-12-31).