Exeter Threshold Days by Year (CA006122370)
14 fixed thresholds counted per year at Exeter (CA006122370): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Exeter Thresholds
- Exeter: days with 10 mm (0.39 in) or more of precipitation in 23 years, most in 1975 with 39.
- Exeter: days with 25 mm (0.98 in) or more of precipitation in 23 years, most in 1966 with 10.
- Exeter: days with 10 cm (3.9 in) or more of snowfall in 23 years, most in 1963 with 11.
- Exeter: nights with a minimum temperature at or below 0 C (32 F) in 15 years, most in 1978 with 176.
- 14 fixed thresholds have at least one qualifying day at Exeter.
Days at or above 30 C (86 F)
14 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1968 | 14 | 17.5 |
| 1969 | 21 | 17.5 |
| 1970 | 9 | 10 |
| 1971 | 9 | 10 |
| 1972 | 7 | 10 |
| 1974 | 9 | 10 |
| 1975 | 7 | 10 |
| 1977 | 12 | 10 |
| 1978 | 15 | 10 |
| 1979 | 12 | 10 |
| 1980 | 6 | 8 |
| 1981 | 8 | 8 |
| 1982 | 3 | 8 |
| 1983 | 15 | 8 |
| Year | First date | Last date |
|---|---|---|
| 1968 | 1968-06-05 | 1968-08-24 |
| 1969 | 1969-06-12 | 1969-09-01 |
| 1970 | 1970-06-10 | 1970-08-26 |
| 1971 | 1971-06-19 | 1971-09-08 |
| 1972 | 1972-06-14 | 1972-08-24 |
| 1974 | 1974-07-03 | 1974-08-23 |
| 1975 | 1975-05-19 | 1975-08-01 |
| 1977 | 1977-05-20 | 1977-08-28 |
| 1978 | 1978-05-27 | 1978-09-20 |
| 1979 | 1979-05-09 | 1979-09-05 |
| 1980 | 1980-06-24 | 1980-08-29 |
| 1981 | 1981-06-15 | 1981-07-19 |
| 1982 | 1982-07-06 | 1982-07-18 |
| 1983 | 1983-06-13 | 1983-09-10 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 14 | 21 | 1969 | 15 |
| 35 C (95 F): Days | 1 | 1 | 1971 | 1 |
| 90 F (32.2 C): Days | 9 | 4 | 1969 | 2 |
| 0 C (32 F): Ice days (max | 14 | 90 | 1978 | 53 |
| 0 C (32 F): Frost days (min | 15 | 176 | 1978 | 135 |
| -10 C (14 F): Days with min | 15 | 76 | 1978 | 37 |
| -20 C (-4 F): Days with min | 14 | 23 | 1978 | 3 |
| 20 C (68 F): Tropical nights (min | 15 | 11 | 1977 | 6 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 23 | 39 | 1975 | 27 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 23 | 10 | 1966 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 13 | 3 | 1964 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1969 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 23 | 11 | 1963 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 7 | 3 | 1977 | 3 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1968.
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 (2026-10-17).