Florence Threshold Days by Year (USC00142773)
20 fixed thresholds counted per year at Florence (USC00142773): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Florence Thresholds
- Florence: days with 10 mm (0.39 in) or more of precipitation in 82 years, most in 1951 with 41.
- Florence: days with 25 mm (0.98 in) or more of precipitation in 82 years, most in 1973 with 18.
- Florence: days with 50 mm (1.97 in) or more of precipitation in 72 years, most in 1965 with 7.
- Florence: days with a maximum temperature at or above 30 C (86 F) in 57 years, most in 1956 with 138.
- 20 fixed thresholds have at least one qualifying day at Florence.
Days at or above 30 C (86 F)
57 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1951 | 51 | 94 |
| 1952 | 109 | 94 |
| 1953 | 115 | 94 |
| 1954 | 114 | 94 |
| 1955 | 107 | 94 |
| 1956 | 138 | 94 |
| 1957 | 62 | 94 |
| 1958 | 64 | 94 |
| 1959 | 86 | 94 |
| 1960 | 85 | 88.5 |
| 1961 | 71 | 88.5 |
| 1962 | 99 | 88.5 |
| 1963 | 121 | 88.5 |
| 1964 | 94 | 88.5 |
| 1965 | 88 | 88.5 |
| 1966 | 85 | 88.5 |
| 1967 | 72 | 88.5 |
| 1968 | 85 | 88.5 |
| 1969 | 85 | 88.5 |
| 1970 | 100 | 91.1 |
| 1971 | 90 | 91.1 |
| 1972 | 97 | 91.1 |
| 1973 | 83 | 91.1 |
| 1974 | 71 | 91.1 |
| 1975 | 93 | 91.1 |
| 1976 | 91 | 91.1 |
| 1977 | 83 | 91.1 |
| 1978 | 108 | 91.1 |
| 1979 | 95 | 91.1 |
| 1980 | 118 | 89.6 |
| 1981 | 82 | 89.6 |
| 1982 | 87 | 89.6 |
| 1983 | 94 | 89.6 |
| 1984 | 101 | 89.6 |
| 1985 | 80 | 89.6 |
| 1986 | 80 | 89.6 |
| 1987 | 86 | 89.6 |
| 1988 | 88 | 89.6 |
| 1989 | 80 | 89.6 |
| 1990 | 85 | 80 |
| 1991 | 98 | 80 |
| 1992 | 49 | 80 |
| 1993 | 73 | 80 |
| 1994 | 93 | 80 |
| 1995 | 78 | 80 |
| 1996 | 83 | 80 |
| 1997 | 71 | 80 |
| 1998 | 98 | 80 |
| 1999 | 72 | 80 |
| 2000 | 91 | 83.1 |
| 2001 | 84 | 83.1 |
| 2002 | 95 | 83.1 |
| 2003 | 83 | 83.1 |
| 2004 | 71 | 83.1 |
| 2006 | 95 | 83.1 |
| 2007 | 85 | 83.1 |
| 2008 | 61 | 83.1 |
| Year | First date | Last date |
|---|---|---|
| 1951 | 1951-04-28 | 1951-10-03 |
| 1952 | 1952-05-03 | 1952-10-26 |
| 1953 | 1953-04-22 | 1953-10-18 |
| 1954 | 1954-04-06 | 1954-10-09 |
| 1955 | 1955-04-15 | 1955-09-21 |
| 1956 | 1956-03-25 | 1956-10-12 |
| 1957 | 1957-06-05 | 1957-09-05 |
| 1958 | 1958-05-21 | 1958-10-19 |
| 1959 | 1959-04-06 | 1959-09-22 |
| 1960 | 1960-04-22 | 1960-10-11 |
| 1961 | 1961-04-19 | 1961-09-11 |
| 1962 | 1962-04-19 | 1962-10-15 |
| 1963 | 1963-04-15 | 1963-10-15 |
| 1964 | 1964-05-03 | 1964-09-19 |
| 1965 | 1965-04-20 | 1965-10-10 |
| 1966 | 1966-03-31 | 1966-10-13 |
| 1967 | 1967-03-29 | 1967-10-06 |
| 1968 | 1968-03-29 | 1968-10-30 |
| 1969 | 1969-05-14 | 1969-10-04 |
| 1970 | 1970-04-27 | 1970-09-21 |
| 1971 | 1971-04-12 | 1971-10-12 |
| 1972 | 1972-04-11 | 1972-10-11 |
| 1973 | 1973-05-21 | 1973-10-24 |
| 1974 | 1974-05-13 | 1974-09-18 |
| 1975 | 1975-04-23 | 1975-10-21 |
| 1976 | 1976-04-02 | 1976-10-11 |
| 1977 | 1977-04-08 | 1977-10-21 |
| 1978 | 1978-05-19 | 1978-10-20 |
| 1979 | 1979-04-16 | 1979-10-21 |
| 1980 | 1980-04-20 | 1980-11-08 |
| 1981 | 1981-04-12 | 1981-09-30 |
| 1982 | 1982-04-12 | 1982-10-05 |
| 1983 | 1983-05-06 | 1983-10-02 |
| 1984 | 1984-05-24 | 1984-09-24 |
| 1985 | 1985-04-16 | 1985-09-18 |
| 1986 | 1986-04-23 | 1986-09-28 |
| 1987 | 1987-04-17 | 1987-09-26 |
| 1988 | 1988-05-13 | 1988-10-17 |
| 1989 | 1989-03-10 | 1989-10-14 |
| 1990 | 1990-04-22 | 1990-10-16 |
| 1991 | 1991-05-13 | 1991-10-23 |
| 1992 | 1992-04-30 | 1992-10-13 |
| 1993 | 1993-06-07 | 1993-10-06 |
| 1994 | 1994-04-18 | 1994-10-02 |
| 1995 | 1995-06-07 | 1995-10-16 |
| 1996 | 1996-04-11 | 1996-09-11 |
| 1997 | 1997-05-17 | 1997-10-06 |
| 1998 | 1998-05-13 | 1998-09-29 |
| 1999 | 1999-05-16 | 1999-10-15 |
| 2000 | 2000-04-05 | 2000-10-03 |
| 2001 | 2001-04-20 | 2001-09-15 |
| 2002 | 2002-04-14 | 2002-10-01 |
| 2003 | 2003-04-14 | 2003-10-22 |
| 2004 | 2004-04-17 | 2004-10-09 |
| 2006 | 2006-04-14 | 2006-11-10 |
| 2007 | 2007-05-12 | 2007-10-10 |
| 2008 | 2008-05-20 | 2008-09-29 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 57 | 138 | 1956 | 61 |
| 35 C (95 F): Days | 57 | 82 | 1954 | 13 |
| 40 C (104 F): Days | 32 | 32 | 1954 | 1 |
| 45 C (113 F): Days | 1 | 4 | 1954 | 4 |
| 90 F (32.2 C): Days | 57 | 109 | 1956 | 33 |
| 100 F (37.8 C): Days | 53 | 49 | 1980 | 5 |
| 110 F (43.3 C): Days | 5 | 10 | 1980 | 1 |
| 0 C (32 F): Ice days (max | 57 | 54 | 1978 | 20 |
| 0 C (32 F): Frost days (min | 56 | 144 | 1952 | 136 |
| -10 C (14 F): Days with min | 56 | 46 | 1978 | 32 |
| -20 C (-4 F): Days with min | 37 | 13 | 1979 | 1 |
| -30 C (-22 F): Days with min | 1 | 1 | 1989 | 1 |
| 20 C (68 F): Tropical nights (min | 56 | 80 | 1980 | 54 |
| 25 C (77 F): Days with min | 45 | 27 | 1980 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 82 | 41 | 1951 | 30 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 82 | 18 | 1973 | 13 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 72 | 7 | 1965 | 4 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 14 | 2 | 1959 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 43 | 5 | 2007 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 6 | 1 | 1942 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1951.
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).