Mitchell Caverns Threshold Days by Year
17 fixed thresholds counted per year at Mitchell Caverns (USC00045721): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Mitchell Caverns Thresholds
- Mitchell Caverns: days with 10 mm (0.39 in) or more of precipitation in 50 years, most in 1978 with 20.
- Mitchell Caverns: days with a maximum temperature at or above 30 C (86 F) in 49 years, most in 1974 with 122.
- Mitchell Caverns: days with a maximum temperature at or above 35 C (95 F) in 49 years, most in 1990 with 65.
- Mitchell Caverns: days with a maximum temperature at or above 90 F (32.2 C) in 49 years, most in 1996 with 96.
- 17 fixed thresholds have at least one qualifying day at Mitchell Caverns.
Days at or above 30 C (86 F)
49 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1959 | 104 | 104 |
| 1960 | 115 | 95.8 |
| 1961 | 83 | 95.8 |
| 1962 | 105 | 95.8 |
| 1963 | 92 | 95.8 |
| 1964 | 87 | 95.8 |
| 1965 | 82 | 95.8 |
| 1966 | 98 | 95.8 |
| 1967 | 85 | 95.8 |
| 1968 | 101 | 95.8 |
| 1969 | 110 | 95.8 |
| 1970 | 103 | 100.3 |
| 1971 | 94 | 100.3 |
| 1973 | 105 | 100.3 |
| 1974 | 122 | 100.3 |
| 1975 | 102 | 100.3 |
| 1976 | 83 | 100.3 |
| 1977 | 85 | 100.3 |
| 1978 | 111 | 100.3 |
| 1979 | 98 | 100.3 |
| 1980 | 85 | 96.2 |
| 1981 | 103 | 96.2 |
| 1982 | 83 | 96.2 |
| 1983 | 89 | 96.2 |
| 1984 | 88 | 96.2 |
| 1985 | 92 | 96.2 |
| 1986 | 101 | 96.2 |
| 1987 | 109 | 96.2 |
| 1988 | 106 | 96.2 |
| 1989 | 106 | 96.2 |
| 1990 | 86 | 99.6 |
| 1991 | 97 | 99.6 |
| 1993 | 94 | 99.6 |
| 1994 | 99 | 99.6 |
| 1995 | 101 | 99.6 |
| 1996 | 116 | 99.6 |
| 1997 | 118 | 99.6 |
| 1998 | 90 | 99.6 |
| 1999 | 95 | 99.6 |
| 2000 | 100 | 97.4 |
| 2001 | 92 | 97.4 |
| 2002 | 100 | 97.4 |
| 2003 | 110 | 97.4 |
| 2004 | 89 | 97.4 |
| 2006 | 106 | 97.4 |
| 2007 | 94 | 97.4 |
| 2008 | 92 | 97.4 |
| 2009 | 94 | 97.4 |
| 2010 | 96 | 96 |
| Year | First date | Last date |
|---|---|---|
| 1959 | 1959-04-29 | 1959-10-25 |
| 1960 | 1960-05-09 | 1960-10-06 |
| 1961 | 1961-04-03 | 1961-10-01 |
| 1962 | 1962-04-14 | 1962-10-02 |
| 1963 | 1963-05-06 | 1963-10-04 |
| 1964 | 1964-05-18 | 1964-10-10 |
| 1965 | 1965-06-05 | 1965-10-12 |
| 1966 | 1966-04-02 | 1966-09-25 |
| 1967 | 1967-05-16 | 1967-10-10 |
| 1968 | 1968-05-01 | 1968-10-28 |
| 1969 | 1969-05-16 | 1969-10-01 |
| 1970 | 1970-05-16 | 1970-10-06 |
| 1971 | 1971-06-13 | 1971-10-13 |
| 1973 | 1973-05-10 | 1973-09-30 |
| 1974 | 1974-05-07 | 1974-10-18 |
| 1975 | 1975-05-13 | 1975-10-05 |
| 1976 | 1976-05-12 | 1976-09-08 |
| 1977 | 1977-05-31 | 1977-09-10 |
| 1978 | 1978-05-13 | 1978-10-14 |
| 1979 | 1979-05-14 | 1979-10-06 |
| 1980 | 1980-05-20 | 1980-10-11 |
| 1981 | 1981-04-29 | 1981-09-20 |
| 1982 | 1982-05-21 | 1982-09-25 |
| 1983 | 1983-05-22 | 1983-09-17 |
| 1984 | 1984-05-09 | 1984-09-20 |
| 1985 | 1985-04-14 | 1985-10-05 |
| 1986 | 1986-05-14 | 1986-09-09 |
| 1987 | 1987-04-16 | 1987-10-07 |
| 1988 | 1988-05-11 | 1988-10-17 |
| 1989 | 1989-04-06 | 1989-10-12 |
| 1990 | 1990-04-12 | 1990-09-20 |
| 1991 | 1991-05-23 | 1991-10-19 |
| 1993 | 1993-05-11 | 1993-10-04 |
| 1994 | 1994-04-18 | 1994-09-29 |
| 1995 | 1995-05-31 | 1995-10-03 |
| 1996 | 1996-04-24 | 1996-10-11 |
| 1997 | 1997-04-28 | 1997-10-12 |
| 1998 | 1998-06-01 | 1998-09-19 |
| 1999 | 1999-05-26 | 1999-10-14 |
| 2000 | 2000-04-27 | 2000-10-05 |
| 2001 | 2001-05-08 | 2001-10-01 |
| 2002 | 2002-05-30 | 2002-09-27 |
| 2003 | 2003-05-18 | 2003-10-23 |
| 2004 | 2004-05-04 | 2004-10-09 |
| 2006 | 2006-05-12 | 2006-10-01 |
| 2007 | 2007-04-29 | 2007-09-15 |
| 2008 | 2008-05-18 | 2008-10-02 |
| 2009 | 2009-04-22 | 2009-09-29 |
| 2010 | 2010-06-05 | 2010-10-01 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 49 | 122 | 1974 | 96 |
| 35 C (95 F): Days | 49 | 65 | 1990 | 20 |
| 40 C (104 F): Days | 18 | 8 | 1980 | 1 |
| 90 F (32.2 C): Days | 49 | 96 | 1996 | 66 |
| 100 F (37.8 C): Days | 43 | 21 | 1990 | 3 |
| 110 F (43.3 C): Days | 1 | 1 | 1980 | 1 |
| 0 C (32 F): Ice days (max | 13 | 3 | 1971 | 2 |
| 0 C (32 F): Frost days (min | 49 | 47 | 1971 | 19 |
| -10 C (14 F): Days with min | 3 | 3 | 1990 | 3 |
| 20 C (68 F): Tropical nights (min | 49 | 107 | 2003 | 89 |
| 25 C (77 F): Days with min | 49 | 49 | 1990 | 20 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 50 | 20 | 1978 | 11 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 39 | 6 | 1980 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 18 | 5 | 1983 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 4 | 1 | 1980 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 7 | 2 | 1960 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 1 | 1 | 1960 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1959.
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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2025-12-31).