Jasper Threshold Days by Year (CA003053520)
16 fixed thresholds counted per year at Jasper (CA003053520): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Jasper Thresholds
- Jasper: days with a maximum temperature at or below 0 C (32 F) in 47 years, most in 1951 with 114.
- Jasper: nights with a minimum temperature at or below 0 C (32 F) in 47 years, most in 1950 with 240.
- Jasper: nights with a minimum temperature at or below -10 C (14 F) in 47 years, most in 1948 with 112.
- Jasper: nights with a minimum temperature at or below -20 C (-4 F) in 47 years, most in 1951 with 58.
- 16 fixed thresholds have at least one qualifying day at Jasper.
Days at or above 30 C (86 F)
42 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1932 | 2 | 6.5 |
| 1936 | 7 | 6.5 |
| 1938 | 8 | 6.5 |
| 1939 | 9 | 6.5 |
| 1941 | 13 | 5.8 |
| 1942 | 9 | 5.8 |
| 1944 | 3 | 5.8 |
| 1945 | 6 | 5.8 |
| 1946 | 8 | 5.8 |
| 1947 | 3 | 5.8 |
| 1948 | 1 | 5.8 |
| 1949 | 3 | 5.8 |
| 1950 | 5 | 5.5 |
| 1951 | 3 | 5.5 |
| 1952 | 1 | 5.5 |
| 1953 | 4 | 5.5 |
| 1955 | 9 | 5.5 |
| 1956 | 11 | 5.5 |
| 1958 | 4 | 5.5 |
| 1959 | 7 | 5.5 |
| 1960 | 12 | 5.5 |
| 1961 | 15 | 5.5 |
| 1962 | 2 | 5.5 |
| 1963 | 2 | 5.5 |
| 1964 | 2 | 5.5 |
| 1965 | 3 | 5.5 |
| 1966 | 2 | 5.5 |
| 1967 | 12 | 5.5 |
| 1968 | 2 | 5.5 |
| 1969 | 3 | 5.5 |
| 1970 | 12 | 6.4 |
| 1971 | 12 | 6.4 |
| 1972 | 3 | 6.4 |
| 1973 | 9 | 6.4 |
| 1974 | 5 | 6.4 |
| 1975 | 9 | 6.4 |
| 1977 | 2 | 6.4 |
| 1978 | 2 | 6.4 |
| 1979 | 4 | 6.4 |
| 1981 | 10 | 4.3 |
| 1982 | 1 | 4.3 |
| 1983 | 2 | 4.3 |
| Year | First date | Last date |
|---|---|---|
| 1932 | 1932-08-08 | 1932-08-18 |
| 1936 | 1936-06-28 | 1936-09-17 |
| 1938 | 1938-07-16 | 1938-09-03 |
| 1939 | 1939-06-29 | 1939-08-11 |
| 1941 | 1941-06-22 | 1941-08-21 |
| 1942 | 1942-06-30 | 1942-08-19 |
| 1944 | 1944-07-18 | 1944-09-12 |
| 1945 | 1945-06-24 | 1945-08-15 |
| 1946 | 1946-07-20 | 1946-09-02 |
| 1947 | 1947-07-21 | 1947-07-23 |
| 1948 | 1948-08-01 | 1948-08-01 |
| 1949 | 1949-06-06 | 1949-07-16 |
| 1950 | 1950-07-04 | 1950-09-03 |
| 1951 | 1951-07-27 | 1951-08-03 |
| 1952 | 1952-07-31 | 1952-07-31 |
| 1953 | 1953-07-08 | 1953-08-15 |
| 1955 | 1955-06-10 | 1955-08-30 |
| 1956 | 1956-07-09 | 1956-08-22 |
| 1958 | 1958-07-19 | 1958-08-25 |
| 1959 | 1959-07-11 | 1959-08-01 |
| 1960 | 1960-07-06 | 1960-08-10 |
| 1961 | 1961-06-03 | 1961-08-24 |
| 1962 | 1962-07-23 | 1962-07-24 |
| 1963 | 1963-08-09 | 1963-08-10 |
| 1964 | 1964-07-08 | 1964-07-12 |
| 1965 | 1965-07-31 | 1965-08-02 |
| 1966 | 1966-08-24 | 1966-08-25 |
| 1967 | 1967-07-12 | 1967-09-16 |
| 1968 | 1968-07-04 | 1968-07-28 |
| 1969 | 1969-06-16 | 1969-06-18 |
| 1970 | 1970-06-03 | 1970-08-23 |
| 1971 | 1971-07-19 | 1971-08-12 |
| 1972 | 1972-08-07 | 1972-08-28 |
| 1973 | 1973-06-22 | 1973-08-13 |
| 1974 | 1974-06-15 | 1974-08-04 |
| 1975 | 1975-07-03 | 1975-07-27 |
| 1977 | 1977-07-25 | 1977-07-27 |
| 1978 | 1978-07-26 | 1978-08-09 |
| 1979 | 1979-07-17 | 1979-07-20 |
| 1981 | 1981-07-18 | 1981-09-18 |
| 1982 | 1982-07-29 | 1982-07-29 |
| 1983 | 1983-05-29 | 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 | 42 | 15 | 1961 | 2 |
| 35 C (95 F): Days | 2 | 3 | 1941 | 1 |
| 90 F (32.2 C): Days | 24 | 6 | 1941 | 3 |
| 0 C (32 F): Ice days (max | 47 | 114 | 1951 | 78 |
| 0 C (32 F): Frost days (min | 47 | 240 | 1950 | 198 |
| -10 C (14 F): Days with min | 47 | 112 | 1948 | 65 |
| -20 C (-4 F): Days with min | 47 | 58 | 1951 | 21 |
| -30 C (-22 F): Days with min | 47 | 20 | 1950 | 6 |
| -40 C (-40 F): Days with min | 12 | 9 | 1950 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 46 | 14 | 1932 | 4 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 24 | 4 | 1932 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 2 | 1 | 1944 | 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 | 43 | 8 | 1953 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 11 | 3 | 1932 | 2 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 1 | 1 | 1948 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1932.
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).