Stillwater Rsvr Threshold Days by Year (USC00308248)
17 fixed thresholds counted per year at Stillwater Rsvr (USC00308248): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Stillwater Rsvr Thresholds
- Stillwater Rsvr: days with a maximum temperature at or below 0 C (32 F) in 76 years, most in 1997 with 104.
- Stillwater Rsvr: days with 10 mm (0.39 in) or more of precipitation in 75 years, most in 1929 with 55.
- Stillwater Rsvr: days with 25 mm (0.98 in) or more of precipitation in 75 years, most in 1943 with 13.
- Stillwater Rsvr: nights with a minimum temperature at or below 0 C (32 F) in 73 years, most in 1971 with 207.
- 17 fixed thresholds have at least one qualifying day at Stillwater Rsvr.
Days at or above 30 C (86 F)
57 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1927 | 2 | 4 |
| 1928 | 5 | 4 |
| 1929 | 5 | 4 |
| 1930 | 5 | 9.1 |
| 1931 | 13 | 9.1 |
| 1932 | 2 | 9.1 |
| 1933 | 11 | 9.1 |
| 1934 | 12 | 9.1 |
| 1935 | 6 | 9.1 |
| 1936 | 5 | 9.1 |
| 1937 | 18 | 9.1 |
| 1938 | 10 | 9.1 |
| 1939 | 9 | 9.1 |
| 1940 | 2 | 10.1 |
| 1941 | 10 | 10.1 |
| 1943 | 4 | 10.1 |
| 1944 | 18 | 10.1 |
| 1945 | 8 | 10.1 |
| 1946 | 6 | 10.1 |
| 1947 | 19 | 10.1 |
| 1948 | 6 | 10.1 |
| 1949 | 18 | 10.1 |
| 1950 | 2 | 9.1 |
| 1952 | 4 | 9.1 |
| 1953 | 20 | 9.1 |
| 1955 | 28 | 9.1 |
| 1956 | 3 | 9.1 |
| 1957 | 3 | 9.1 |
| 1959 | 4 | 9.1 |
| 1962 | 3 | 3.3 |
| 1963 | 6 | 3.3 |
| 1964 | 3 | 3.3 |
| 1965 | 1 | 3.3 |
| 1966 | 7 | 3.3 |
| 1967 | 1 | 3.3 |
| 1968 | 4 | 3.3 |
| 1969 | 1 | 3.3 |
| 1970 | 2 | 4.2 |
| 1971 | 4 | 4.2 |
| 1972 | 1 | 4.2 |
| 1973 | 8 | 4.2 |
| 1974 | 2 | 4.2 |
| 1975 | 6 | 4.2 |
| 1977 | 5 | 4.2 |
| 1978 | 4 | 4.2 |
| 1979 | 6 | 4.2 |
| 1980 | 1 | 3.4 |
| 1982 | 1 | 3.4 |
| 1983 | 8 | 3.4 |
| 1987 | 1 | 3.4 |
| 1988 | 6 | 3.4 |
| 1990 | 1 | 1.8 |
| 1994 | 3 | 1.8 |
| 1995 | 1 | 1.8 |
| 1999 | 2 | 1.8 |
| 2025 | 5 | 3.5 |
| 2026 | 2 | 3.5 |
| Year | First date | Last date |
|---|---|---|
| 1927 | 1927-07-02 | 1927-07-14 |
| 1928 | 1928-07-08 | 1928-08-16 |
| 1929 | 1929-05-28 | 1929-09-04 |
| 1930 | 1930-05-23 | 1930-07-28 |
| 1931 | 1931-06-20 | 1931-09-14 |
| 1932 | 1932-05-16 | 1932-09-01 |
| 1933 | 1933-06-07 | 1933-08-01 |
| 1934 | 1934-06-01 | 1934-08-10 |
| 1935 | 1935-07-05 | 1935-08-18 |
| 1936 | 1936-07-08 | 1936-07-12 |
| 1937 | 1937-05-31 | 1937-09-02 |
| 1938 | 1938-06-21 | 1938-08-21 |
| 1939 | 1939-07-07 | 1939-09-16 |
| 1940 | 1940-07-28 | 1940-07-29 |
| 1941 | 1941-06-22 | 1941-07-31 |
| 1943 | 1943-06-26 | 1943-07-12 |
| 1944 | 1944-05-04 | 1944-08-16 |
| 1945 | 1945-06-29 | 1945-09-08 |
| 1946 | 1946-06-25 | 1946-07-19 |
| 1947 | 1947-06-10 | 1947-09-06 |
| 1948 | 1948-06-30 | 1948-08-29 |
| 1949 | 1949-06-13 | 1949-08-28 |
| 1950 | 1950-06-27 | 1950-07-10 |
| 1952 | 1952-07-15 | 1952-08-29 |
| 1953 | 1953-06-21 | 1953-09-05 |
| 1955 | 1955-05-05 | 1955-08-23 |
| 1956 | 1956-06-15 | 1956-08-06 |
| 1957 | 1957-06-18 | 1957-07-22 |
| 1959 | 1959-07-30 | 1959-09-10 |
| 1962 | 1962-05-17 | 1962-07-09 |
| 1963 | 1963-06-29 | 1963-07-28 |
| 1964 | 1964-07-01 | 1964-07-29 |
| 1965 | 1965-08-08 | 1965-08-08 |
| 1966 | 1966-06-26 | 1966-08-10 |
| 1967 | 1967-06-12 | 1967-06-12 |
| 1968 | 1968-07-16 | 1968-07-19 |
| 1969 | 1969-06-28 | 1969-06-28 |
| 1970 | 1970-07-31 | 1970-08-11 |
| 1971 | 1971-05-20 | 1971-08-20 |
| 1972 | 1972-07-13 | 1972-07-13 |
| 1973 | 1973-06-12 | 1973-09-06 |
| 1974 | 1974-06-11 | 1974-07-15 |
| 1975 | 1975-05-24 | 1975-08-04 |
| 1977 | 1977-05-22 | 1977-07-21 |
| 1978 | 1978-05-28 | 1978-07-22 |
| 1979 | 1979-07-14 | 1979-07-31 |
| 1980 | 1980-06-26 | 1980-06-26 |
| 1982 | 1982-07-19 | 1982-07-19 |
| 1983 | 1983-06-14 | 1983-07-13 |
| 1987 | 1987-07-13 | 1987-07-13 |
| 1988 | 1988-06-16 | 1988-08-04 |
| 1990 | 1990-06-18 | 1990-06-18 |
| 1994 | 1994-06-17 | 1994-06-19 |
| 1995 | 1995-06-20 | 1995-06-20 |
| 1999 | 1999-08-01 | 1999-09-05 |
| 2025 | 2025-06-24 | 2025-08-13 |
| 2026 | 2026-07-02 | 2026-07-03 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 57 | 28 | 1955 | 2 |
| 35 C (95 F): Days | 1 | 2 | 1931 | 2 |
| 90 F (32.2 C): Days | 22 | 11 | 1953 | 1 |
| 0 C (32 F): Ice days (max | 76 | 104 | 1997 | 53 |
| 0 C (32 F): Frost days (min | 73 | 207 | 1971 | 102 |
| -10 C (14 F): Days with min | 73 | 109 | 1970 | 49 |
| -20 C (-4 F): Days with min | 73 | 57 | 1934 | 17 |
| -30 C (-22 F): Days with min | 71 | 23 | 1934 | 3 |
| -40 C (-40 F): Days with min | 9 | 3 | 1943 | 1 |
| 20 C (68 F): Tropical nights (min | 21 | 4 | 2025 | 4 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 75 | 55 | 1929 | 15 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 75 | 13 | 1943 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 40 | 4 | 1998 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 3 | 1 | 1932 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 47 | 29 | 1971 | 9 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 36 | 6 | 1966 | 2 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 5 | 3 | 1971 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1927.
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 (2026-10-12).