Dalton Threshold Days by Year (USC00471970)
18 fixed thresholds counted per year at Dalton (USC00471970): 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 1988 with 61.
- Dalton: days with a maximum temperature at or below 0 C (32 F) in 57 years, most in 1978 with 86.
- Dalton: days with 10 mm (0.39 in) or more of precipitation in 57 years, most in 1993 with 36.
- Dalton: days with 25 mm (0.98 in) or more of precipitation in 57 years, most in 1965 with 17.
- 18 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 |
|---|---|---|
| 1945 | 23 | 38 |
| 1946 | 30 | 38 |
| 1947 | 50 | 38 |
| 1948 | 51 | 38 |
| 1949 | 36 | 38 |
| 1950 | 13 | 25.2 |
| 1951 | 6 | 25.2 |
| 1952 | 39 | 25.2 |
| 1953 | 28 | 25.2 |
| 1954 | 24 | 25.2 |
| 1955 | 51 | 25.2 |
| 1956 | 22 | 25.2 |
| 1957 | 21 | 25.2 |
| 1958 | 23 | 25.2 |
| 1962 | 22 | 25.3 |
| 1963 | 35 | 25.3 |
| 1964 | 34 | 25.3 |
| 1965 | 17 | 25.3 |
| 1966 | 25 | 25.3 |
| 1967 | 15 | 25.3 |
| 1968 | 28 | 25.3 |
| 1969 | 26 | 25.3 |
| 1970 | 45 | 27.1 |
| 1971 | 24 | 27.1 |
| 1972 | 23 | 27.1 |
| 1973 | 26 | 27.1 |
| 1974 | 14 | 27.1 |
| 1975 | 38 | 27.1 |
| 1976 | 41 | 27.1 |
| 1977 | 24 | 27.1 |
| 1978 | 25 | 27.1 |
| 1979 | 11 | 27.1 |
| 1980 | 27 | 29.5 |
| 1981 | 20 | 29.5 |
| 1982 | 10 | 29.5 |
| 1983 | 50 | 29.5 |
| 1984 | 25 | 29.5 |
| 1985 | 22 | 29.5 |
| 1986 | 19 | 29.5 |
| 1987 | 37 | 29.5 |
| 1988 | 61 | 29.5 |
| 1989 | 24 | 29.5 |
| 1990 | 17 | 27.9 |
| 1991 | 43 | 27.9 |
| 1992 | 13 | 27.9 |
| 1993 | 12 | 27.9 |
| 1994 | 19 | 27.9 |
| 1995 | 45 | 27.9 |
| 1996 | 32 | 27.9 |
| 1997 | 21 | 27.9 |
| 1998 | 42 | 27.9 |
| 1999 | 35 | 27.9 |
| 2000 | 14 | 36.8 |
| 2001 | 41 | 36.8 |
| 2002 | 50 | 36.8 |
| 2005 | 51 | 36.8 |
| 2006 | 28 | 36.8 |
| Year | First date | Last date |
|---|---|---|
| 1945 | 1945-06-23 | 1945-09-07 |
| 1946 | 1946-06-06 | 1946-08-17 |
| 1947 | 1947-06-27 | 1947-10-21 |
| 1948 | 1948-05-20 | 1948-09-19 |
| 1949 | 1949-05-03 | 1949-08-27 |
| 1950 | 1950-05-24 | 1950-08-24 |
| 1951 | 1951-07-21 | 1951-08-30 |
| 1952 | 1952-04-28 | 1952-09-28 |
| 1953 | 1953-05-29 | 1953-09-29 |
| 1954 | 1954-06-11 | 1954-09-06 |
| 1955 | 1955-05-03 | 1955-09-18 |
| 1956 | 1956-05-22 | 1956-08-27 |
| 1957 | 1957-06-16 | 1957-09-01 |
| 1958 | 1958-06-28 | 1958-09-03 |
| 1962 | 1962-05-16 | 1962-08-29 |
| 1963 | 1963-06-02 | 1963-10-06 |
| 1964 | 1964-05-22 | 1964-09-07 |
| 1965 | 1965-05-02 | 1965-08-15 |
| 1966 | 1966-06-22 | 1966-09-01 |
| 1967 | 1967-05-26 | 1967-08-25 |
| 1968 | 1968-06-05 | 1968-09-03 |
| 1969 | 1969-05-28 | 1969-08-31 |
| 1970 | 1970-04-29 | 1970-09-07 |
| 1971 | 1971-06-04 | 1971-09-07 |
| 1972 | 1972-05-18 | 1972-08-29 |
| 1973 | 1973-06-08 | 1973-09-02 |
| 1974 | 1974-07-02 | 1974-08-26 |
| 1975 | 1975-05-18 | 1975-10-13 |
| 1976 | 1976-06-06 | 1976-10-01 |
| 1977 | 1977-05-13 | 1977-08-27 |
| 1978 | 1978-05-26 | 1978-09-19 |
| 1979 | 1979-05-10 | 1979-08-07 |
| 1980 | 1980-04-22 | 1980-08-21 |
| 1981 | 1981-06-05 | 1981-09-11 |
| 1982 | 1982-06-28 | 1982-08-04 |
| 1983 | 1983-06-13 | 1983-09-10 |
| 1984 | 1984-06-06 | 1984-09-19 |
| 1985 | 1985-06-08 | 1985-09-08 |
| 1986 | 1986-05-30 | 1986-08-16 |
| 1987 | 1987-05-10 | 1987-08-16 |
| 1988 | 1988-05-28 | 1988-09-17 |
| 1989 | 1989-05-24 | 1989-08-27 |
| 1990 | 1990-04-25 | 1990-09-06 |
| 1991 | 1991-04-06 | 1991-09-09 |
| 1992 | 1992-05-01 | 1992-08-25 |
| 1993 | 1993-07-02 | 1993-08-27 |
| 1994 | 1994-05-21 | 1994-09-15 |
| 1995 | 1995-06-15 | 1995-09-05 |
| 1996 | 1996-05-18 | 1996-09-10 |
| 1997 | 1997-06-20 | 1997-10-07 |
| 1998 | 1998-05-17 | 1998-09-14 |
| 1999 | 1999-05-28 | 1999-09-04 |
| 2000 | 2000-06-08 | 2000-09-01 |
| 2001 | 2001-05-15 | 2001-09-04 |
| 2002 | 2002-04-15 | 2002-09-10 |
| 2005 | 2005-06-08 | 2005-10-05 |
| 2006 | 2006-05-29 | 2006-08-26 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 57 | 61 | 1988 | 28 |
| 35 C (95 F): Days | 29 | 19 | 1988 | 1 |
| 90 F (32.2 C): Days | 54 | 44 | 1988 | 14 |
| 100 F (37.8 C): Days | 6 | 4 | 1947 | 2 |
| 0 C (32 F): Ice days (max | 57 | 86 | 1978 | 24 |
| 0 C (32 F): Frost days (min | 55 | 178 | 1976 | 172 |
| -10 C (14 F): Days with min | 55 | 85 | 1955 | 34 |
| -20 C (-4 F): Days with min | 54 | 39 | 1963 | 9 |
| -30 C (-22 F): Days with min | 18 | 7 | 1951 | 4 |
| 20 C (68 F): Tropical nights (min | 54 | 23 | 1988 | 5 |
| 25 C (77 F): Days with min | 9 | 2 | 1995 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 57 | 36 | 1993 | 31 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 57 | 17 | 1965 | 9 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 38 | 4 | 1987 | 3 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 5 | 1 | 1985 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 51 | 7 | 1977 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 11 | 2 | 1971 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 1 | 1 | 1999 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1945.
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).