Hemon Threshold Days by Year (CA007063090)
16 fixed thresholds counted per year at Hemon (CA007063090): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Hemon Thresholds
- Hemon: days with a maximum temperature at or below 0 C (32 F) in 17 years, most in 1976 with 137.
- Hemon: days with a maximum temperature at or above 30 C (86 F) in 16 years, most in 1983 with 18.
- Hemon: nights with a minimum temperature at or below 0 C (32 F) in 16 years, most in 1965 with 232.
- Hemon: nights with a minimum temperature at or below -10 C (14 F) in 16 years, most in 1965 with 147.
- 16 fixed thresholds have at least one qualifying day at Hemon.
Days at or above 30 C (86 F)
16 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1964 | 1 | 3 |
| 1965 | 1 | 3 |
| 1966 | 1 | 3 |
| 1967 | 6 | 3 |
| 1968 | 3 | 3 |
| 1969 | 6 | 3 |
| 1970 | 5 | 6.4 |
| 1973 | 4 | 6.4 |
| 1974 | 4 | 6.4 |
| 1975 | 9 | 6.4 |
| 1976 | 13 | 6.4 |
| 1978 | 4 | 6.4 |
| 1979 | 6 | 6.4 |
| 1981 | 2 | 8.3 |
| 1982 | 5 | 8.3 |
| 1983 | 18 | 8.3 |
| Year | First date | Last date |
|---|---|---|
| 1964 | 1964-07-21 | 1964-07-21 |
| 1965 | 1965-06-28 | 1965-06-28 |
| 1966 | 1966-05-24 | 1966-05-24 |
| 1967 | 1967-06-03 | 1967-07-22 |
| 1968 | 1968-07-15 | 1968-07-18 |
| 1969 | 1969-06-27 | 1969-08-31 |
| 1970 | 1970-07-23 | 1970-08-10 |
| 1973 | 1973-07-24 | 1973-09-02 |
| 1974 | 1974-06-08 | 1974-08-22 |
| 1975 | 1975-06-22 | 1975-08-09 |
| 1976 | 1976-06-05 | 1976-08-21 |
| 1978 | 1978-05-27 | 1978-08-16 |
| 1979 | 1979-07-08 | 1979-07-30 |
| 1981 | 1981-06-05 | 1981-07-31 |
| 1982 | 1982-05-28 | 1982-09-13 |
| 1983 | 1983-06-13 | 1983-09-06 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 16 | 18 | 1983 | 18 |
| 35 C (95 F): Days | 3 | 1 | 1975 | 1 |
| 90 F (32.2 C): Days | 11 | 6 | 1976 | 3 |
| 100 F (37.8 C): Days | 1 | 1 | 1975 | 1 |
| 0 C (32 F): Ice days (max | 17 | 137 | 1976 | 112 |
| 0 C (32 F): Frost days (min | 16 | 232 | 1965 | 225 |
| -10 C (14 F): Days with min | 16 | 147 | 1965 | 109 |
| -20 C (-4 F): Days with min | 16 | 97 | 1965 | 65 |
| -30 C (-22 F): Days with min | 16 | 42 | 1982 | 27 |
| -40 C (-40 F): Days with min | 16 | 15 | 1976 | 6 |
| 20 C (68 F): Tropical nights (min | 1 | 1 | 1973 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 16 | 36 | 1979 | 30 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 16 | 7 | 1970 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 6 | 2 | 1970 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 16 | 11 | 1976 | 8 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 9 | 3 | 1969 | 2 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1964.
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).