Appleton Threshold Days by Year (USC00450217)
15 fixed thresholds counted per year at Appleton (USC00450217): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Appleton Thresholds
- Appleton: days with 10 cm (3.9 in) or more of snowfall in 40 years, most in 1975 with 15.
- Appleton: days with a maximum temperature at or above 30 C (86 F) in 39 years, most in 1967 with 40.
- Appleton: days with a maximum temperature at or below 0 C (32 F) in 39 years, most in 1985 with 70.
- Appleton: days with a maximum temperature at or above 90 F (32.2 C) in 38 years, most in 1990 with 25.
- 15 fixed thresholds have at least one qualifying day at Appleton.
Days at or above 30 C (86 F)
39 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1960 | 23 | 20 |
| 1961 | 34 | 20 |
| 1962 | 12 | 20 |
| 1963 | 12 | 20 |
| 1964 | 11 | 20 |
| 1965 | 18 | 20 |
| 1966 | 12 | 20 |
| 1967 | 40 | 20 |
| 1968 | 23 | 20 |
| 1969 | 15 | 20 |
| 1970 | 30 | 22.1 |
| 1971 | 28 | 22.1 |
| 1972 | 24 | 22.1 |
| 1973 | 28 | 22.1 |
| 1974 | 28 | 22.1 |
| 1975 | 15 | 22.1 |
| 1976 | 9 | 22.1 |
| 1977 | 26 | 22.1 |
| 1978 | 18 | 22.1 |
| 1979 | 15 | 22.1 |
| 1980 | 5 | 18.1 |
| 1981 | 25 | 18.1 |
| 1982 | 19 | 18.1 |
| 1983 | 9 | 18.1 |
| 1984 | 14 | 18.1 |
| 1985 | 22 | 18.1 |
| 1986 | 30 | 18.1 |
| 1987 | 29 | 18.1 |
| 1988 | 23 | 18.1 |
| 1989 | 5 | 18.1 |
| 1990 | 34 | 23.9 |
| 1991 | 25 | 23.9 |
| 1992 | 26 | 23.9 |
| 1993 | 13 | 23.9 |
| 1995 | 16 | 23.9 |
| 1996 | 33 | 23.9 |
| 1997 | 20 | 23.9 |
| 2001 | 18 | 24 |
| 2003 | 30 | 24 |
| Year | First date | Last date |
|---|---|---|
| 1960 | 1960-07-05 | 1960-08-11 |
| 1961 | 1961-06-14 | 1961-08-22 |
| 1962 | 1962-07-21 | 1962-08-24 |
| 1963 | 1963-06-14 | 1963-09-10 |
| 1964 | 1964-07-07 | 1964-08-23 |
| 1965 | 1965-07-02 | 1965-08-18 |
| 1966 | 1966-05-25 | 1966-09-23 |
| 1967 | 1967-06-16 | 1967-09-17 |
| 1968 | 1968-06-25 | 1968-08-31 |
| 1969 | 1969-06-03 | 1969-09-01 |
| 1970 | 1970-06-02 | 1970-08-23 |
| 1971 | 1971-07-14 | 1971-08-28 |
| 1972 | 1972-07-04 | 1972-09-03 |
| 1973 | 1973-05-14 | 1973-09-10 |
| 1974 | 1974-06-11 | 1974-09-18 |
| 1975 | 1975-07-04 | 1975-09-06 |
| 1976 | 1976-06-28 | 1976-09-01 |
| 1977 | 1977-06-30 | 1977-08-21 |
| 1978 | 1978-06-04 | 1978-08-10 |
| 1979 | 1979-06-02 | 1979-09-15 |
| 1980 | 1980-07-22 | 1980-08-11 |
| 1981 | 1981-07-04 | 1981-09-18 |
| 1982 | 1982-06-18 | 1982-09-03 |
| 1983 | 1983-05-25 | 1983-08-15 |
| 1984 | 1984-07-15 | 1984-08-27 |
| 1985 | 1985-06-19 | 1985-08-27 |
| 1986 | 1986-05-25 | 1986-09-05 |
| 1987 | 1987-05-08 | 1987-09-24 |
| 1988 | 1988-06-16 | 1988-09-06 |
| 1989 | 1989-06-26 | 1989-09-25 |
| 1990 | 1990-06-22 | 1990-09-25 |
| 1991 | 1991-07-03 | 1991-09-29 |
| 1992 | 1992-06-21 | 1992-08-20 |
| 1993 | 1993-08-02 | 1993-09-11 |
| 1995 | 1995-07-01 | 1995-09-17 |
| 1996 | 1996-07-02 | 1996-09-12 |
| 1997 | 1997-07-04 | 1997-09-03 |
| 2001 | 2001-05-22 | 2001-09-14 |
| 2003 | 2003-06-06 | 2003-09-26 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 39 | 40 | 1967 | 30 |
| 35 C (95 F): Days | 29 | 12 | 1971 | 5 |
| 90 F (32.2 C): Days | 38 | 25 | 1990 | 16 |
| 100 F (37.8 C): Days | 6 | 2 | 1971 | 8 |
| 0 C (32 F): Ice days (max | 39 | 70 | 1985 | 23 |
| 0 C (32 F): Frost days (min | 37 | 170 | 1964 | 148 |
| -10 C (14 F): Days with min | 36 | 44 | 1985 | 1 |
| -20 C (-4 F): Days with min | 17 | 8 | 1990 | 5 |
| 20 C (68 F): Tropical nights (min | 2 | 1 | 1982 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 38 | 48 | 1983 | 19 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 37 | 11 | 1961 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 13 | 3 | 1964 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 40 | 15 | 1975 | 5 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 25 | 4 | 1964 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 3 | 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 1960.
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).