Dalton Threshold Days by Year (USC00092493)
16 fixed thresholds counted per year at Dalton (USC00092493): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Dalton Thresholds
- Dalton: days with a maximum temperature at or above 30 C (86 F) in 57 years, most in 1941 with 136.
- Dalton: days with a maximum temperature at or above 90 F (32.2 C) in 57 years, most in 1941 with 93.
- Dalton: days with 10 mm (0.39 in) or more of precipitation in 56 years, most in 1989 with 60.
- Dalton: days with 25 mm (0.98 in) or more of precipitation in 56 years, most in 1948 with 26.
- 16 fixed thresholds have at least one qualifying day at Dalton.
Days at or above 30 C (86 F)
57 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1936 | 124 | 113.8 |
| 1937 | 111 | 113.8 |
| 1938 | 107 | 113.8 |
| 1939 | 113 | 113.8 |
| 1940 | 106 | 100.4 |
| 1941 | 136 | 100.4 |
| 1942 | 84 | 100.4 |
| 1943 | 105 | 100.4 |
| 1944 | 102 | 100.4 |
| 1945 | 99 | 100.4 |
| 1946 | 87 | 100.4 |
| 1947 | 98 | 100.4 |
| 1948 | 102 | 100.4 |
| 1949 | 85 | 100.4 |
| 1951 | 100 | 103.8 |
| 1952 | 100 | 103.8 |
| 1953 | 103 | 103.8 |
| 1954 | 99 | 103.8 |
| 1956 | 108 | 103.8 |
| 1957 | 110 | 103.8 |
| 1958 | 102 | 103.8 |
| 1959 | 108 | 103.8 |
| 1960 | 101 | 89.2 |
| 1961 | 80 | 89.2 |
| 1962 | 110 | 89.2 |
| 1963 | 94 | 89.2 |
| 1964 | 100 | 89.2 |
| 1965 | 103 | 89.2 |
| 1966 | 68 | 89.2 |
| 1967 | 54 | 89.2 |
| 1968 | 87 | 89.2 |
| 1969 | 95 | 89.2 |
| 1970 | 104 | 75.8 |
| 1971 | 92 | 75.8 |
| 1972 | 70 | 75.8 |
| 1973 | 60 | 75.8 |
| 1974 | 62 | 75.8 |
| 1975 | 74 | 75.8 |
| 1978 | 92 | 75.8 |
| 1979 | 52 | 75.8 |
| 1981 | 85 | 89 |
| 1982 | 87 | 89 |
| 1983 | 84 | 89 |
| 1984 | 76 | 89 |
| 1985 | 77 | 89 |
| 1986 | 104 | 89 |
| 1987 | 117 | 89 |
| 1988 | 96 | 89 |
| 1989 | 75 | 89 |
| 1990 | 95 | 89.1 |
| 1991 | 87 | 89.1 |
| 1992 | 51 | 89.1 |
| 1993 | 104 | 89.1 |
| 1995 | 98 | 89.1 |
| 1997 | 80 | 89.1 |
| 1998 | 117 | 89.1 |
| 1999 | 81 | 89.1 |
| Year | First date | Last date |
|---|---|---|
| 1936 | 1936-04-15 | 1936-09-29 |
| 1937 | 1937-04-18 | 1937-10-06 |
| 1938 | 1938-05-02 | 1938-10-19 |
| 1939 | 1939-04-24 | 1939-10-25 |
| 1940 | 1940-04-02 | 1940-10-27 |
| 1941 | 1941-04-18 | 1941-10-25 |
| 1942 | 1942-04-18 | 1942-09-19 |
| 1943 | 1943-04-29 | 1943-10-02 |
| 1944 | 1944-05-14 | 1944-10-04 |
| 1945 | 1945-05-26 | 1945-09-30 |
| 1946 | 1946-04-20 | 1946-09-27 |
| 1947 | 1947-05-16 | 1947-10-22 |
| 1948 | 1948-03-20 | 1948-09-23 |
| 1949 | 1949-05-04 | 1949-10-09 |
| 1951 | 1951-05-01 | 1951-10-06 |
| 1952 | 1952-05-02 | 1952-10-01 |
| 1953 | 1953-05-02 | 1953-10-03 |
| 1954 | 1954-04-29 | 1954-10-14 |
| 1956 | 1956-04-29 | 1956-10-01 |
| 1957 | 1957-04-26 | 1957-09-23 |
| 1958 | 1958-04-24 | 1958-09-28 |
| 1959 | 1959-05-03 | 1959-10-06 |
| 1960 | 1960-04-23 | 1960-09-22 |
| 1961 | 1961-05-08 | 1961-11-03 |
| 1962 | 1962-05-01 | 1962-10-14 |
| 1963 | 1963-04-01 | 1963-10-27 |
| 1964 | 1964-04-20 | 1964-09-24 |
| 1965 | 1965-04-22 | 1965-09-23 |
| 1966 | 1966-05-30 | 1966-09-07 |
| 1967 | 1967-03-13 | 1967-10-08 |
| 1968 | 1968-04-20 | 1968-10-03 |
| 1969 | 1969-04-05 | 1969-09-19 |
| 1970 | 1970-04-24 | 1970-09-27 |
| 1971 | 1971-04-13 | 1971-10-05 |
| 1972 | 1972-04-15 | 1972-09-21 |
| 1973 | 1973-05-11 | 1973-09-26 |
| 1974 | 1974-04-02 | 1974-09-14 |
| 1975 | 1975-04-28 | 1975-09-06 |
| 1978 | 1978-04-09 | 1978-09-23 |
| 1979 | 1979-05-11 | 1979-09-13 |
| 1981 | 1981-04-15 | 1981-10-07 |
| 1982 | 1982-03-20 | 1982-10-11 |
| 1983 | 1983-06-04 | 1983-09-20 |
| 1984 | 1984-06-03 | 1984-09-26 |
| 1985 | 1985-04-21 | 1985-09-12 |
| 1986 | 1986-04-26 | 1986-10-05 |
| 1987 | 1987-04-22 | 1987-09-29 |
| 1988 | 1988-04-06 | 1988-09-25 |
| 1989 | 1989-04-24 | 1989-09-15 |
| 1990 | 1990-04-27 | 1990-09-22 |
| 1991 | 1991-05-16 | 1991-09-19 |
| 1992 | 1992-04-25 | 1992-09-11 |
| 1993 | 1993-05-08 | 1993-10-10 |
| 1995 | 1995-03-24 | 1995-09-15 |
| 1997 | 1997-05-18 | 1997-10-07 |
| 1998 | 1998-05-14 | 1998-10-05 |
| 1999 | 1999-04-03 | 1999-09-30 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 57 | 136 | 1941 | 81 |
| 35 C (95 F): Days | 50 | 36 | 1936 | 15 |
| 40 C (104 F): Days | 1 | 1 | 1947 | 1 |
| 90 F (32.2 C): Days | 57 | 93 | 1941 | 49 |
| 100 F (37.8 C): Days | 15 | 12 | 1936 | 1 |
| 0 C (32 F): Ice days (max | 44 | 10 | 1978 | 3 |
| 0 C (32 F): Frost days (min | 47 | 98 | 1981 | 57 |
| -10 C (14 F): Days with min | 39 | 18 | 1963 | 3 |
| -20 C (-4 F): Days with min | 4 | 3 | 1940 | 1 |
| 20 C (68 F): Tropical nights (min | 47 | 89 | 1995 | 46 |
| 25 C (77 F): Days with min | 3 | 5 | 1995 | 5 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 56 | 60 | 1989 | 42 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 56 | 26 | 1948 | 18 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 53 | 8 | 1936 | 5 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 9 | 1 | 1936 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 9 | 1 | 1949 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1936.
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).