Williams Lake A Threshold Days by Year
12 fixed thresholds counted per year at Williams Lake A (CA001098940): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Williams Lake A Thresholds
- Williams Lake A: days with a maximum temperature at or below 0 C (32 F) in 23 years, most in 1975 with 88.
- Williams Lake A: nights with a minimum temperature at or below 0 C (32 F) in 23 years, most in 1964 with 212.
- Williams Lake A: nights with a minimum temperature at or below -10 C (14 F) in 23 years, most in 1982 with 84.
- Williams Lake A: nights with a minimum temperature at or below -20 C (-4 F) in 23 years, most in 1972 with 35.
- 12 fixed thresholds have at least one qualifying day at Williams Lake A.
Days at or above 30 C (86 F)
20 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1961 | 11 | 5 |
| 1962 | 2 | 5 |
| 1963 | 1 | 5 |
| 1965 | 3 | 5 |
| 1966 | 2 | 5 |
| 1967 | 13 | 5 |
| 1968 | 2 | 5 |
| 1969 | 6 | 5 |
| 1970 | 6 | 5.4 |
| 1971 | 14 | 5.4 |
| 1972 | 3 | 5.4 |
| 1973 | 5 | 5.4 |
| 1974 | 3 | 5.4 |
| 1975 | 4 | 5.4 |
| 1977 | 4 | 5.4 |
| 1978 | 5 | 5.4 |
| 1979 | 5 | 5.4 |
| 1981 | 9 | 5 |
| 1982 | 2 | 5 |
| 1983 | 4 | 5 |
| Year | First date | Last date |
|---|---|---|
| 1961 | 1961-06-17 | 1961-08-20 |
| 1962 | 1962-07-24 | 1962-07-31 |
| 1963 | 1963-08-11 | 1963-08-11 |
| 1965 | 1965-07-31 | 1965-08-02 |
| 1966 | 1966-05-06 | 1966-08-24 |
| 1967 | 1967-06-20 | 1967-09-17 |
| 1968 | 1968-07-03 | 1968-07-04 |
| 1969 | 1969-06-09 | 1969-06-18 |
| 1970 | 1970-07-15 | 1970-08-23 |
| 1971 | 1971-07-18 | 1971-08-11 |
| 1972 | 1972-08-06 | 1972-08-08 |
| 1973 | 1973-06-22 | 1973-08-12 |
| 1974 | 1974-08-02 | 1974-08-04 |
| 1975 | 1975-07-05 | 1975-07-10 |
| 1977 | 1977-07-26 | 1977-08-18 |
| 1978 | 1978-07-23 | 1978-08-09 |
| 1979 | 1979-07-16 | 1979-07-20 |
| 1981 | 1981-08-08 | 1981-09-17 |
| 1982 | 1982-06-18 | 1982-06-19 |
| 1983 | 1983-05-28 | 1983-07-31 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 20 | 14 | 1971 | 4 |
| 90 F (32.2 C): Days | 12 | 4 | 1961 | 3 |
| 0 C (32 F): Ice days (max | 23 | 88 | 1975 | 59 |
| 0 C (32 F): Frost days (min | 23 | 212 | 1964 | 185 |
| -10 C (14 F): Days with min | 23 | 84 | 1982 | 38 |
| -20 C (-4 F): Days with min | 23 | 35 | 1972 | 14 |
| -30 C (-22 F): Days with min | 21 | 9 | 1969 | 6 |
| -40 C (-40 F): Days with min | 2 | 3 | 1969 | 3 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 23 | 23 | 1982 | 7 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 7 | 4 | 1962 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 22 | 9 | 1975 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 2 | 1 | 1962 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1961.
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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-14).