Mt Vernon UNIV Mo - SW Ctr Threshold Days by Year (USC00235862)
19 fixed thresholds counted per year at Mt Vernon UNIV Mo - SW Ctr (USC00235862): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Mt Vernon UNIV Mo - SW Ctr Thresholds
- Mt Vernon UNIV Mo - SW Ctr: days with a maximum temperature at or above 30 C (86 F) in 52 years, most in 1963 with 106.
- Mt Vernon UNIV Mo - SW Ctr: days with a maximum temperature at or above 90 F (32.2 C) in 52 years, most in 1980 with 89.
- Mt Vernon UNIV Mo - SW Ctr: days with a maximum temperature at or below 0 C (32 F) in 52 years, most in 1978 with 47.
- Mt Vernon UNIV Mo - SW Ctr: days with 10 mm (0.39 in) or more of precipitation in 52 years, most in 1990 with 52.
- 19 fixed thresholds have at least one qualifying day at Mt Vernon UNIV Mo - SW Ctr.
Days at or above 30 C (86 F)
52 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1961 | 59 | 70.3 |
| 1962 | 85 | 70.3 |
| 1963 | 106 | 70.3 |
| 1964 | 82 | 70.3 |
| 1965 | 65 | 70.3 |
| 1966 | 63 | 70.3 |
| 1967 | 44 | 70.3 |
| 1968 | 60 | 70.3 |
| 1969 | 69 | 70.3 |
| 1970 | 72 | 62.1 |
| 1971 | 69 | 62.1 |
| 1972 | 70 | 62.1 |
| 1973 | 61 | 62.1 |
| 1974 | 54 | 62.1 |
| 1975 | 75 | 62.1 |
| 1976 | 45 | 62.1 |
| 1977 | 68 | 62.1 |
| 1978 | 85 | 62.1 |
| 1979 | 22 | 62.1 |
| 1980 | 106 | 69.5 |
| 1981 | 55 | 69.5 |
| 1982 | 52 | 69.5 |
| 1983 | 69 | 69.5 |
| 1984 | 83 | 69.5 |
| 1985 | 59 | 69.5 |
| 1986 | 73 | 69.5 |
| 1987 | 77 | 69.5 |
| 1988 | 69 | 69.5 |
| 1989 | 52 | 69.5 |
| 1990 | 65 | 67.1 |
| 1991 | 62 | 67.1 |
| 1992 | 35 | 67.1 |
| 1993 | 53 | 67.1 |
| 1994 | 72 | 67.1 |
| 1995 | 71 | 67.1 |
| 1996 | 82 | 67.1 |
| 1997 | 60 | 67.1 |
| 1998 | 98 | 67.1 |
| 1999 | 73 | 67.1 |
| 2000 | 82 | 72.2 |
| 2001 | 85 | 72.2 |
| 2002 | 90 | 72.2 |
| 2003 | 66 | 72.2 |
| 2004 | 45 | 72.2 |
| 2005 | 96 | 72.2 |
| 2006 | 91 | 72.2 |
| 2007 | 67 | 72.2 |
| 2008 | 51 | 72.2 |
| 2009 | 49 | 72.2 |
| 2010 | 93 | 94 |
| 2011 | 96 | 94 |
| 2012 | 93 | 94 |
| Year | First date | Last date |
|---|---|---|
| 1961 | 1961-06-10 | 1961-09-30 |
| 1962 | 1962-04-29 | 1962-10-11 |
| 1963 | 1963-04-21 | 1963-10-19 |
| 1964 | 1964-05-20 | 1964-10-17 |
| 1965 | 1965-04-22 | 1965-10-11 |
| 1966 | 1966-05-24 | 1966-10-15 |
| 1967 | 1967-05-26 | 1967-10-06 |
| 1968 | 1968-05-03 | 1968-09-22 |
| 1969 | 1969-05-29 | 1969-10-05 |
| 1970 | 1970-06-13 | 1970-09-21 |
| 1971 | 1971-06-06 | 1971-09-29 |
| 1972 | 1972-04-13 | 1972-09-20 |
| 1973 | 1973-06-12 | 1973-09-09 |
| 1974 | 1974-05-17 | 1974-09-01 |
| 1975 | 1975-05-20 | 1975-10-13 |
| 1976 | 1976-06-14 | 1976-10-03 |
| 1977 | 1977-05-31 | 1977-10-01 |
| 1978 | 1978-05-26 | 1978-10-22 |
| 1979 | 1979-06-22 | 1979-10-21 |
| 1980 | 1980-05-12 | 1980-10-10 |
| 1981 | 1981-06-08 | 1981-10-06 |
| 1982 | 1982-05-31 | 1982-09-15 |
| 1983 | 1983-06-20 | 1983-09-20 |
| 1984 | 1984-06-12 | 1984-09-14 |
| 1985 | 1985-05-31 | 1985-09-21 |
| 1986 | 1986-06-08 | 1986-09-24 |
| 1987 | 1987-04-20 | 1987-09-15 |
| 1988 | 1988-06-01 | 1988-09-23 |
| 1989 | 1989-04-24 | 1989-10-13 |
| 1990 | 1990-05-26 | 1990-09-29 |
| 1991 | 1991-05-14 | 1991-09-16 |
| 1992 | 1992-06-16 | 1992-09-15 |
| 1993 | 1993-06-17 | 1993-09-23 |
| 1994 | 1994-05-26 | 1994-10-01 |
| 1995 | 1995-05-14 | 1995-10-12 |
| 1996 | 1996-04-20 | 1996-09-24 |
| 1997 | 1997-05-27 | 1997-10-04 |
| 1998 | 1998-05-14 | 1998-09-30 |
| 1999 | 1999-06-04 | 1999-10-16 |
| 2000 | 2000-05-09 | 2000-10-04 |
| 2001 | 2001-04-10 | 2001-09-08 |
| 2002 | 2002-05-02 | 2002-10-04 |
| 2003 | 2003-05-07 | 2003-10-11 |
| 2004 | 2004-05-21 | 2004-10-19 |
| 2005 | 2005-05-11 | 2005-10-20 |
| 2006 | 2006-04-17 | 2006-10-05 |
| 2007 | 2007-06-17 | 2007-10-08 |
| 2008 | 2008-05-26 | 2008-09-13 |
| 2009 | 2009-06-01 | 2009-09-09 |
| 2010 | 2010-05-23 | 2010-09-24 |
| 2011 | 2011-04-09 | 2011-09-14 |
| 2012 | 2012-05-05 | 2012-09-26 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 52 | 106 | 1963 | 93 |
| 35 C (95 F): Days | 48 | 59 | 1980 | 50 |
| 40 C (104 F): Days | 10 | 9 | 1980 | 8 |
| 90 F (32.2 C): Days | 52 | 89 | 1980 | 75 |
| 100 F (37.8 C): Days | 29 | 29 | 2012 | 29 |
| 110 F (43.3 C): Days | 1 | 1 | 2011 | 1 |
| 0 C (32 F): Ice days (max | 52 | 47 | 1978 | 4 |
| 0 C (32 F): Frost days (min | 50 | 138 | 1997 | 94 |
| -10 C (14 F): Days with min | 50 | 39 | 1979 | 7 |
| -20 C (-4 F): Days with min | 30 | 11 | 1979 | 4 |
| 20 C (68 F): Tropical nights (min | 50 | 70 | 1980 | 41 |
| 25 C (77 F): Days with min | 17 | 7 | 1980 | 3 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 52 | 52 | 1990 | 26 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 52 | 23 | 1985 | 13 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 49 | 11 | 2008 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 9 | 2 | 1983 | 1 |
| 200 mm (7.87 in): Days with 200 mm or more rain | 1 | 1 | 1993 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 23 | 3 | 1975 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 4 | 1 | 1980 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1961.
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).