Ridgeville Threshold Days by Year (CA006137161)
12 fixed thresholds counted per year at Ridgeville (CA006137161): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Ridgeville Thresholds
- Ridgeville: days with a maximum temperature at or above 30 C (86 F) in 16 years, most in 1952 with 19.
- Ridgeville: days with a maximum temperature at or below 0 C (32 F) in 16 years, most in 1978 with 81.
- Ridgeville: nights with a minimum temperature at or below 0 C (32 F) in 16 years, most in 1972 with 148.
- Ridgeville: nights with a minimum temperature at or below -10 C (14 F) in 16 years, most in 1978 with 59.
- 12 fixed thresholds have at least one qualifying day at Ridgeville.
Days at or above 30 C (86 F)
16 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1952 | 19 | 10.5 |
| 1956 | 2 | 10.5 |
| 1970 | 4 | 6 |
| 1971 | 7 | 6 |
| 1972 | 7 | 6 |
| 1973 | 6 | 6 |
| 1974 | 5 | 6 |
| 1975 | 7 | 6 |
| 1976 | 2 | 6 |
| 1977 | 6 | 6 |
| 1978 | 8 | 6 |
| 1979 | 8 | 6 |
| 1980 | 5 | 5 |
| 1981 | 3 | 5 |
| 1982 | 6 | 5 |
| 1983 | 6 | 5 |
| Year | First date | Last date |
|---|---|---|
| 1952 | 1952-06-24 | 1952-09-12 |
| 1956 | 1956-06-15 | 1956-07-01 |
| 1970 | 1970-06-10 | 1970-09-24 |
| 1971 | 1971-06-29 | 1971-09-06 |
| 1972 | 1972-07-12 | 1972-08-24 |
| 1973 | 1973-07-07 | 1973-09-04 |
| 1974 | 1974-07-04 | 1974-08-21 |
| 1975 | 1975-07-05 | 1975-08-02 |
| 1976 | 1976-06-10 | 1976-06-15 |
| 1977 | 1977-05-21 | 1977-09-01 |
| 1978 | 1978-05-27 | 1978-08-19 |
| 1979 | 1979-05-11 | 1979-07-25 |
| 1980 | 1980-07-11 | 1980-07-21 |
| 1981 | 1981-07-08 | 1981-07-11 |
| 1982 | 1982-07-07 | 1982-09-13 |
| 1983 | 1983-06-14 | 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 | 16 | 19 | 1952 | 6 |
| 90 F (32.2 C): Days | 6 | 3 | 1952 | 2 |
| 0 C (32 F): Ice days (max | 16 | 81 | 1978 | 55 |
| 0 C (32 F): Frost days (min | 16 | 148 | 1972 | 119 |
| -10 C (14 F): Days with min | 16 | 59 | 1978 | 24 |
| -20 C (-4 F): Days with min | 12 | 7 | 1979 | 4 |
| 20 C (68 F): Tropical nights (min | 15 | 27 | 1983 | 27 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 12 | 38 | 1972 | 32 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 12 | 11 | 1977 | 6 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 7 | 1 | 1952 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 13 | 8 | 1979 | 3 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 3 | 2 | 1977 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1952.
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).