Shemya USAF Base Threshold Days by Year (USW00045715)
9 fixed thresholds counted per year at Shemya USAF Base (USW00045715): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Shemya USAF Base Thresholds
- Shemya USAF Base: days with a maximum temperature at or below 0 C (32 F) in 42 years, most in 1988 with 64.
- Shemya USAF Base: nights with a minimum temperature at or below 0 C (32 F) in 42 years, most in 1960 with 168.
- Shemya USAF Base: days with 10 mm (0.39 in) or more of precipitation in 40 years, most in 1952 with 35.
- Shemya USAF Base: days with 25 mm (0.98 in) or more of precipitation in 32 years, most in 1953 with 10.
- 9 fixed thresholds have at least one qualifying day at Shemya USAF Base.
Nights at or below 0 C (32 F)
42 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1944 | 132 | 125.5 |
| 1945 | 103 | 125.5 |
| 1946 | 136 | 125.5 |
| 1947 | 133 | 125.5 |
| 1948 | 112 | 125.5 |
| 1949 | 137 | 125.5 |
| 1950 | 102 | 118.2 |
| 1951 | 110 | 118.2 |
| 1952 | 134 | 118.2 |
| 1953 | 141 | 118.2 |
| 1959 | 104 | 118.2 |
| 1960 | 168 | 139 |
| 1961 | 128 | 139 |
| 1962 | 121 | 139 |
| 1963 | 88 | 139 |
| 1964 | 145 | 139 |
| 1965 | 123 | 139 |
| 1966 | 149 | 139 |
| 1967 | 150 | 139 |
| 1968 | 165 | 139 |
| 1969 | 153 | 139 |
| 1970 | 126 | 128.3 |
| 1971 | 152 | 128.3 |
| 1972 | 117 | 128.3 |
| 1975 | 132 | 128.3 |
| 1976 | 131 | 128.3 |
| 1979 | 112 | 128.3 |
| 1980 | 141 | 113 |
| 1981 | 122 | 113 |
| 1982 | 94 | 113 |
| 1983 | 104 | 113 |
| 1984 | 110 | 113 |
| 1985 | 119 | 113 |
| 1986 | 91 | 113 |
| 1987 | 121 | 113 |
| 1988 | 141 | 113 |
| 1989 | 87 | 113 |
| 1990 | 83 | 99 |
| 1991 | 95 | 99 |
| 1994 | 119 | 99 |
| 2025 | 47 | 46 |
| 2026 | 45 | 46 |
| Year | First date | Last date |
|---|---|---|
| 1944 | 1944-01-01 | 1944-12-31 |
| 1945 | 1945-01-01 | 1945-12-31 |
| 1946 | 1946-01-01 | 1946-12-31 |
| 1947 | 1947-01-01 | 1947-12-31 |
| 1948 | 1948-01-01 | 1948-12-31 |
| 1949 | 1949-01-01 | 1949-12-31 |
| 1950 | 1950-01-01 | 1950-12-27 |
| 1951 | 1951-01-06 | 1951-12-31 |
| 1952 | 1952-01-01 | 1952-12-31 |
| 1953 | 1953-01-01 | 1953-12-31 |
| 1959 | 1959-01-01 | 1959-12-31 |
| 1960 | 1960-01-01 | 1960-12-31 |
| 1961 | 1961-01-01 | 1961-12-31 |
| 1962 | 1962-01-01 | 1962-12-31 |
| 1963 | 1963-01-02 | 1963-12-31 |
| 1964 | 1964-01-01 | 1964-12-29 |
| 1965 | 1965-01-04 | 1965-12-23 |
| 1966 | 1966-01-02 | 1966-12-31 |
| 1967 | 1967-01-01 | 1967-12-31 |
| 1968 | 1968-01-01 | 1968-12-29 |
| 1969 | 1969-01-06 | 1969-12-31 |
| 1970 | 1970-01-01 | 1970-12-31 |
| 1971 | 1971-01-01 | 1971-12-31 |
| 1972 | 1972-01-01 | 1972-12-31 |
| 1975 | 1975-01-01 | 1975-12-29 |
| 1976 | 1976-01-01 | 1976-12-31 |
| 1979 | 1979-01-01 | 1979-12-31 |
| 1980 | 1980-01-01 | 1980-12-31 |
| 1981 | 1981-01-01 | 1981-12-31 |
| 1982 | 1982-01-02 | 1982-12-31 |
| 1983 | 1983-01-01 | 1983-12-28 |
| 1984 | 1984-01-01 | 1984-12-31 |
| 1985 | 1985-01-01 | 1985-12-31 |
| 1986 | 1986-01-02 | 1986-12-31 |
| 1987 | 1987-01-01 | 1987-12-31 |
| 1988 | 1988-01-01 | 1988-12-31 |
| 1989 | 1989-01-01 | 1989-12-28 |
| 1990 | 1990-01-02 | 1990-12-12 |
| 1991 | 1991-01-11 | 1991-12-31 |
| 1994 | 1994-01-01 | 1994-12-31 |
| 2025 | 2025-01-01 | 2025-10-27 |
| 2026 | 2026-01-06 | 2026-09-17 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 0 C (32 F): Ice days (max | 42 | 64 | 1988 | 5 |
| 0 C (32 F): Frost days (min | 42 | 168 | 1960 | 45 |
| -10 C (14 F): Days with min | 9 | 5 | 1975 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 40 | 35 | 1952 | 1 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 32 | 10 | 1953 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 6 | 1 | 1962 | 1 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1962 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 21 | 6 | 1987 | 6 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 2 | 1 | 1976 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1944.
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).