Island Falls Threshold Days by Year (CA004063560)
15 fixed thresholds counted per year at Island Falls (CA004063560): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Island Falls Thresholds
- Island Falls: days with a maximum temperature at or below 0 C (32 F) in 52 years, most in 1967 with 166.
- Island Falls: nights with a minimum temperature at or below 0 C (32 F) in 52 years, most in 1945 with 240.
- Island Falls: nights with a minimum temperature at or below -10 C (14 F) in 52 years, most in 1933 with 167.
- Island Falls: nights with a minimum temperature at or below -20 C (-4 F) in 52 years, most in 1932 with 120.
- 15 fixed thresholds have at least one qualifying day at Island Falls.
Days at or above 30 C (86 F)
44 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1933 | 3 | 3.6 |
| 1934 | 2 | 3.6 |
| 1935 | 4 | 3.6 |
| 1936 | 5 | 3.6 |
| 1937 | 6 | 3.6 |
| 1938 | 4 | 3.6 |
| 1939 | 1 | 3.6 |
| 1940 | 5 | 4.9 |
| 1941 | 4 | 4.9 |
| 1942 | 4 | 4.9 |
| 1943 | 8 | 4.9 |
| 1944 | 9 | 4.9 |
| 1945 | 6 | 4.9 |
| 1946 | 3 | 4.9 |
| 1947 | 5 | 4.9 |
| 1948 | 3 | 4.9 |
| 1949 | 2 | 4.9 |
| 1950 | 3 | 3.1 |
| 1951 | 1 | 3.1 |
| 1953 | 6 | 3.1 |
| 1954 | 2 | 3.1 |
| 1955 | 6 | 3.1 |
| 1956 | 3 | 3.1 |
| 1959 | 1 | 3.1 |
| 1960 | 2 | 3.4 |
| 1961 | 6 | 3.4 |
| 1962 | 2 | 3.4 |
| 1963 | 5 | 3.4 |
| 1964 | 5 | 3.4 |
| 1967 | 2 | 3.4 |
| 1969 | 2 | 3.4 |
| 1970 | 4 | 2.8 |
| 1971 | 2 | 2.8 |
| 1972 | 2 | 2.8 |
| 1973 | 2 | 2.8 |
| 1974 | 3 | 2.8 |
| 1975 | 4 | 2.8 |
| 1976 | 1 | 2.8 |
| 1978 | 1 | 2.8 |
| 1979 | 6 | 2.8 |
| 1980 | 1 | 2.8 |
| 1981 | 5 | 2.8 |
| 1982 | 1 | 2.8 |
| 1983 | 4 | 2.8 |
| Year | First date | Last date |
|---|---|---|
| 1933 | 1933-06-17 | 1933-08-14 |
| 1934 | 1934-07-10 | 1934-08-16 |
| 1935 | 1935-07-01 | 1935-07-25 |
| 1936 | 1936-05-29 | 1936-07-10 |
| 1937 | 1937-06-29 | 1937-08-23 |
| 1938 | 1938-06-19 | 1938-07-29 |
| 1939 | 1939-08-05 | 1939-08-05 |
| 1940 | 1940-07-03 | 1940-08-31 |
| 1941 | 1941-07-04 | 1941-07-20 |
| 1942 | 1942-06-07 | 1942-08-10 |
| 1943 | 1943-05-21 | 1943-07-24 |
| 1944 | 1944-05-28 | 1944-08-06 |
| 1945 | 1945-07-14 | 1945-08-09 |
| 1946 | 1946-07-21 | 1946-08-23 |
| 1947 | 1947-07-07 | 1947-08-02 |
| 1948 | 1948-07-06 | 1948-08-18 |
| 1949 | 1949-08-17 | 1949-08-18 |
| 1950 | 1950-07-19 | 1950-07-28 |
| 1951 | 1951-05-23 | 1951-05-23 |
| 1953 | 1953-06-13 | 1953-08-08 |
| 1954 | 1954-07-20 | 1954-07-21 |
| 1955 | 1955-06-30 | 1955-07-20 |
| 1956 | 1956-06-09 | 1956-06-20 |
| 1959 | 1959-07-13 | 1959-07-13 |
| 1960 | 1960-07-07 | 1960-07-08 |
| 1961 | 1961-05-21 | 1961-08-05 |
| 1962 | 1962-06-26 | 1962-06-27 |
| 1963 | 1963-07-04 | 1963-08-20 |
| 1964 | 1964-07-03 | 1964-07-12 |
| 1967 | 1967-08-11 | 1967-09-06 |
| 1969 | 1969-07-11 | 1969-08-10 |
| 1970 | 1970-06-04 | 1970-08-08 |
| 1971 | 1971-08-04 | 1971-08-06 |
| 1972 | 1972-08-18 | 1972-08-24 |
| 1973 | 1973-08-01 | 1973-08-13 |
| 1974 | 1974-06-24 | 1974-08-06 |
| 1975 | 1975-07-03 | 1975-07-12 |
| 1976 | 1976-07-02 | 1976-07-02 |
| 1978 | 1978-06-29 | 1978-06-29 |
| 1979 | 1979-07-02 | 1979-07-19 |
| 1980 | 1980-06-11 | 1980-06-11 |
| 1981 | 1981-07-01 | 1981-08-28 |
| 1982 | 1982-07-05 | 1982-07-05 |
| 1983 | 1983-08-02 | 1983-09-01 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 44 | 9 | 1944 | 4 |
| 35 C (95 F): Days | 2 | 1 | 1941 | 1 |
| 90 F (32.2 C): Days | 26 | 4 | 1944 | 1 |
| 0 C (32 F): Ice days (max | 52 | 166 | 1967 | 144 |
| 0 C (32 F): Frost days (min | 52 | 240 | 1945 | 232 |
| -10 C (14 F): Days with min | 52 | 167 | 1933 | 138 |
| -20 C (-4 F): Days with min | 52 | 120 | 1932 | 91 |
| -30 C (-22 F): Days with min | 52 | 77 | 1933 | 40 |
| -40 C (-40 F): Days with min | 52 | 22 | 1937 | 5 |
| 20 C (68 F): Tropical nights (min | 3 | 1 | 1942 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 52 | 21 | 1933 | 16 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 41 | 6 | 1957 | 4 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 11 | 2 | 1949 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 41 | 12 | 1933 | 3 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 2 | 1 | 1942 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1933.
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).