Glenham Threshold Days by Year (USC00303259)
18 fixed thresholds counted per year at Glenham (USC00303259): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Glenham Thresholds
- Glenham: days with 10 mm (0.39 in) or more of precipitation in 63 years, most in 1952 with 52.
- Glenham: days with 25 mm (0.98 in) or more of precipitation in 63 years, most in 1983 with 18.
- Glenham: days with 10 cm (3.9 in) or more of snowfall in 62 years, most in 1947 with 9.
- Glenham: days with a maximum temperature at or above 30 C (86 F) in 61 years, most in 1983 with 71.
- 18 fixed thresholds have at least one qualifying day at Glenham.
Days at or above 30 C (86 F)
61 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1933 | 49 | 48.3 |
| 1934 | 47 | 48.3 |
| 1935 | 45 | 48.3 |
| 1936 | 46 | 48.3 |
| 1937 | 50 | 48.3 |
| 1938 | 47 | 48.3 |
| 1939 | 54 | 48.3 |
| 1940 | 34 | 45.1 |
| 1941 | 50 | 45.1 |
| 1942 | 43 | 45.1 |
| 1943 | 58 | 45.1 |
| 1944 | 66 | 45.1 |
| 1946 | 31 | 45.1 |
| 1947 | 39 | 45.1 |
| 1948 | 37 | 45.1 |
| 1949 | 48 | 45.1 |
| 1950 | 23 | 50.1 |
| 1951 | 35 | 50.1 |
| 1952 | 57 | 50.1 |
| 1953 | 58 | 50.1 |
| 1954 | 45 | 50.1 |
| 1955 | 67 | 50.1 |
| 1956 | 46 | 50.1 |
| 1957 | 69 | 50.1 |
| 1958 | 32 | 50.1 |
| 1959 | 69 | 50.1 |
| 1960 | 37 | 45.8 |
| 1961 | 56 | 45.8 |
| 1962 | 42 | 45.8 |
| 1963 | 33 | 45.8 |
| 1964 | 41 | 45.8 |
| 1965 | 50 | 45.8 |
| 1966 | 62 | 45.8 |
| 1967 | 38 | 45.8 |
| 1968 | 49 | 45.8 |
| 1969 | 50 | 45.8 |
| 1970 | 65 | 45.2 |
| 1971 | 54 | 45.2 |
| 1972 | 34 | 45.2 |
| 1973 | 54 | 45.2 |
| 1974 | 33 | 45.2 |
| 1975 | 41 | 45.2 |
| 1976 | 36 | 45.2 |
| 1977 | 46 | 45.2 |
| 1978 | 45 | 45.2 |
| 1979 | 44 | 45.2 |
| 1980 | 61 | 50.8 |
| 1981 | 49 | 50.8 |
| 1982 | 30 | 50.8 |
| 1983 | 71 | 50.8 |
| 1984 | 52 | 50.8 |
| 1985 | 42 | 50.8 |
| 1986 | 45 | 50.8 |
| 1987 | 53 | 50.8 |
| 1988 | 55 | 50.8 |
| 1989 | 50 | 50.8 |
| 1990 | 57 | 49.8 |
| 1991 | 69 | 49.8 |
| 1992 | 35 | 49.8 |
| 1993 | 52 | 49.8 |
| 1995 | 36 | 49.8 |
| Year | First date | Last date |
|---|---|---|
| 1933 | 1933-05-20 | 1933-09-27 |
| 1934 | 1934-05-05 | 1934-09-26 |
| 1935 | 1935-04-27 | 1935-08-26 |
| 1936 | 1936-05-08 | 1936-09-12 |
| 1937 | 1937-05-30 | 1937-09-04 |
| 1938 | 1938-04-20 | 1938-10-17 |
| 1939 | 1939-04-25 | 1939-10-10 |
| 1940 | 1940-06-03 | 1940-09-21 |
| 1941 | 1941-04-15 | 1941-10-06 |
| 1942 | 1942-04-30 | 1942-09-17 |
| 1943 | 1943-05-08 | 1943-09-07 |
| 1944 | 1944-05-04 | 1944-10-07 |
| 1946 | 1946-05-25 | 1946-09-20 |
| 1947 | 1947-05-13 | 1947-09-14 |
| 1948 | 1948-05-12 | 1948-09-19 |
| 1949 | 1949-05-05 | 1949-10-12 |
| 1950 | 1950-06-08 | 1950-08-30 |
| 1951 | 1951-05-16 | 1951-09-13 |
| 1952 | 1952-06-04 | 1952-09-14 |
| 1953 | 1953-05-11 | 1953-10-04 |
| 1954 | 1954-04-21 | 1954-10-14 |
| 1955 | 1955-05-05 | 1955-09-20 |
| 1956 | 1956-05-14 | 1956-09-15 |
| 1957 | 1957-04-25 | 1957-09-23 |
| 1958 | 1958-06-02 | 1958-09-27 |
| 1959 | 1959-05-08 | 1959-10-07 |
| 1960 | 1960-06-03 | 1960-09-10 |
| 1961 | 1961-05-15 | 1961-09-25 |
| 1962 | 1962-04-28 | 1962-09-15 |
| 1963 | 1963-05-10 | 1963-10-08 |
| 1964 | 1964-05-08 | 1964-09-24 |
| 1965 | 1965-05-11 | 1965-09-24 |
| 1966 | 1966-06-05 | 1966-09-03 |
| 1967 | 1967-06-03 | 1967-09-09 |
| 1968 | 1968-06-07 | 1968-09-26 |
| 1969 | 1969-04-28 | 1969-09-18 |
| 1970 | 1970-04-30 | 1970-09-27 |
| 1971 | 1971-06-05 | 1971-09-10 |
| 1972 | 1972-05-25 | 1972-09-27 |
| 1973 | 1973-04-23 | 1973-09-06 |
| 1974 | 1974-04-30 | 1974-09-14 |
| 1975 | 1975-05-20 | 1975-08-28 |
| 1976 | 1976-04-18 | 1976-09-15 |
| 1977 | 1977-04-13 | 1977-09-04 |
| 1978 | 1978-05-21 | 1978-09-22 |
| 1979 | 1979-05-10 | 1979-10-23 |
| 1980 | 1980-05-06 | 1980-09-23 |
| 1981 | 1981-05-25 | 1981-09-15 |
| 1982 | 1982-06-27 | 1982-09-13 |
| 1983 | 1983-04-29 | 1983-09-21 |
| 1984 | 1984-05-27 | 1984-09-26 |
| 1985 | 1985-04-22 | 1985-09-21 |
| 1986 | 1986-05-06 | 1986-10-01 |
| 1987 | 1987-05-11 | 1987-08-21 |
| 1988 | 1988-05-24 | 1988-09-20 |
| 1989 | 1989-05-19 | 1989-09-14 |
| 1990 | 1990-04-27 | 1990-10-09 |
| 1991 | 1991-04-08 | 1991-09-18 |
| 1992 | 1992-05-03 | 1992-09-17 |
| 1993 | 1993-05-12 | 1993-09-16 |
| 1995 | 1995-06-18 | 1995-09-08 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 61 | 71 | 1983 | 36 |
| 35 C (95 F): Days | 54 | 24 | 1988 | 2 |
| 40 C (104 F): Days | 1 | 1 | 1966 | 1 |
| 90 F (32.2 C): Days | 61 | 47 | 1955 | 13 |
| 100 F (37.8 C): Days | 19 | 6 | 1953 | 1 |
| 0 C (32 F): Ice days (max | 61 | 44 | 1963 | 25 |
| 0 C (32 F): Frost days (min | 56 | 150 | 1943 | 97 |
| -10 C (14 F): Days with min | 56 | 51 | 1934 | 3 |
| -20 C (-4 F): Days with min | 41 | 19 | 1948 | 2 |
| -30 C (-22 F): Days with min | 2 | 2 | 1934 | 1 |
| 20 C (68 F): Tropical nights (min | 56 | 36 | 1949 | 22 |
| 25 C (77 F): Days with min | 6 | 2 | 1936 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 63 | 52 | 1952 | 26 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 63 | 18 | 1983 | 7 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 49 | 7 | 1938 | 4 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 5 | 2 | 1955 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 62 | 9 | 1947 | 2 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 20 | 3 | 1969 | 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 (2025-12-31).