Winona Threshold Days by Year (USC00148988)
18 fixed thresholds counted per year at Winona (USC00148988): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Winona Thresholds
- Winona: days with 10 mm (0.39 in) or more of precipitation in 69 years, most in 1992 with 24.
- Winona: days with 25 mm (0.98 in) or more of precipitation in 68 years, most in 1896 with 9.
- Winona: days with 10 cm (3.9 in) or more of snowfall in 46 years, most in 1958 with 5.
- Winona: days with a maximum temperature at or above 30 C (86 F) in 39 years, most in 2007 with 103.
- 18 fixed thresholds have at least one qualifying day at Winona.
Days at or above 30 C (86 F)
39 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1964 | 88 | 73 |
| 1965 | 66 | 73 |
| 1966 | 77 | 73 |
| 1967 | 67 | 73 |
| 1968 | 77 | 73 |
| 1969 | 63 | 73 |
| 1970 | 95 | 83.4 |
| 1971 | 83 | 83.4 |
| 1972 | 83 | 83.4 |
| 1973 | 84 | 83.4 |
| 1974 | 69 | 83.4 |
| 1977 | 73 | 83.4 |
| 1978 | 88 | 83.4 |
| 1979 | 92 | 83.4 |
| 1980 | 96 | 78.3 |
| 1981 | 71 | 78.3 |
| 1982 | 59 | 78.3 |
| 1983 | 80 | 78.3 |
| 1984 | 84 | 78.3 |
| 1985 | 78 | 78.3 |
| 1986 | 76 | 78.3 |
| 1987 | 83 | 78.3 |
| 1988 | 78 | 78.3 |
| 1992 | 48 | 64.6 |
| 1993 | 53 | 64.6 |
| 1994 | 96 | 64.6 |
| 1995 | 68 | 64.6 |
| 1996 | 54 | 64.6 |
| 1997 | 67 | 64.6 |
| 1998 | 70 | 64.6 |
| 1999 | 61 | 64.6 |
| 2000 | 87 | 80.1 |
| 2002 | 89 | 80.1 |
| 2003 | 76 | 80.1 |
| 2005 | 71 | 80.1 |
| 2006 | 77 | 80.1 |
| 2007 | 103 | 80.1 |
| 2008 | 72 | 80.1 |
| 2009 | 66 | 80.1 |
| Year | First date | Last date |
|---|---|---|
| 1964 | 1964-04-17 | 1964-12-24 |
| 1965 | 1965-04-21 | 1965-10-11 |
| 1966 | 1966-05-06 | 1966-10-03 |
| 1967 | 1967-04-05 | 1967-10-13 |
| 1968 | 1968-05-02 | 1968-10-31 |
| 1969 | 1969-05-26 | 1969-10-09 |
| 1970 | 1970-04-12 | 1970-10-06 |
| 1971 | 1971-05-17 | 1971-10-11 |
| 1972 | 1972-03-12 | 1972-10-03 |
| 1973 | 1973-05-18 | 1973-10-24 |
| 1974 | 1974-04-26 | 1974-10-11 |
| 1977 | 1977-04-11 | 1977-09-27 |
| 1978 | 1978-03-31 | 1978-10-21 |
| 1979 | 1979-04-20 | 1979-10-12 |
| 1980 | 1980-04-20 | 1980-11-07 |
| 1981 | 1981-04-18 | 1981-09-30 |
| 1982 | 1982-04-15 | 1982-09-28 |
| 1983 | 1983-05-25 | 1983-10-02 |
| 1984 | 1984-05-22 | 1984-09-23 |
| 1985 | 1985-04-15 | 1985-10-07 |
| 1986 | 1986-03-28 | 1986-09-21 |
| 1987 | 1987-04-18 | 1987-10-30 |
| 1988 | 1988-03-28 | 1988-09-27 |
| 1992 | 1992-04-30 | 1992-10-14 |
| 1993 | 1993-05-16 | 1993-10-07 |
| 1994 | 1994-03-18 | 1994-09-30 |
| 1995 | 1995-04-15 | 1995-10-17 |
| 1996 | 1996-04-03 | 1996-10-13 |
| 1997 | 1997-05-17 | 1997-10-07 |
| 1998 | 1998-03-26 | 1998-09-30 |
| 1999 | 1999-05-10 | 1999-10-13 |
| 2000 | 2000-04-14 | 2000-10-02 |
| 2002 | 2002-04-15 | 2002-10-01 |
| 2003 | 2003-04-15 | 2003-10-30 |
| 2005 | 2005-01-25 | 2005-10-19 |
| 2006 | 2006-04-06 | 2006-11-09 |
| 2007 | 2007-04-03 | 2007-10-21 |
| 2008 | 2008-03-02 | 2008-09-29 |
| 2009 | 2009-04-23 | 2009-10-01 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 39 | 103 | 2007 | 66 |
| 35 C (95 F): Days | 39 | 50 | 1980 | 14 |
| 40 C (104 F): Days | 27 | 8 | 1980 | 2 |
| 90 F (32.2 C): Days | 39 | 74 | 2007 | 42 |
| 100 F (37.8 C): Days | 38 | 25 | 1980 | 2 |
| 110 F (43.3 C): Days | 1 | 1 | 1973 | 1 |
| 0 C (32 F): Ice days (max | 39 | 53 | 1978 | 18 |
| 0 C (32 F): Frost days (min | 39 | 174 | 1970 | 124 |
| -10 C (14 F): Days with min | 39 | 62 | 1978 | 26 |
| -20 C (-4 F): Days with min | 30 | 10 | 1979 | 4 |
| 20 C (68 F): Tropical nights (min | 36 | 25 | 2002 | 9 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 69 | 24 | 1992 | 16 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 68 | 9 | 1896 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 30 | 3 | 1895 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 2 | 1 | 2013 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 46 | 5 | 1958 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 11 | 1 | 1972 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 1 | 1 | 1997 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1964.
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 (2026-10-12).