Norwood Threshold Days by Year (USC00056012)
13 fixed thresholds counted per year at Norwood (USC00056012): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Norwood Thresholds
- Norwood: days with 10 mm (0.39 in) or more of precipitation in 70 years, most in 1935 with 20.
- Norwood: nights with a minimum temperature at or below 0 C (32 F) in 69 years, most in 1971 with 232.
- Norwood: nights with a minimum temperature at or below -10 C (14 F) in 69 years, most in 1974 with 96.
- Norwood: days with a maximum temperature at or above 30 C (86 F) in 67 years, most in 1942 with 74.
- 13 fixed thresholds have at least one qualifying day at Norwood.
Days at or above 30 C (86 F)
67 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1932 | 32 | 35 |
| 1933 | 39 | 35 |
| 1935 | 30 | 35 |
| 1936 | 39 | 35 |
| 1942 | 74 | 19.4 |
| 1943 | 12 | 19.4 |
| 1944 | 1 | 19.4 |
| 1945 | 5 | 19.4 |
| 1946 | 15 | 19.4 |
| 1947 | 17 | 19.4 |
| 1948 | 18 | 19.4 |
| 1949 | 13 | 19.4 |
| 1950 | 3 | 20.1 |
| 1951 | 26 | 20.1 |
| 1952 | 10 | 20.1 |
| 1953 | 25 | 20.1 |
| 1954 | 26 | 20.1 |
| 1955 | 16 | 20.1 |
| 1956 | 24 | 20.1 |
| 1957 | 14 | 20.1 |
| 1958 | 26 | 20.1 |
| 1959 | 31 | 20.1 |
| 1960 | 37 | 20.4 |
| 1961 | 25 | 20.4 |
| 1962 | 20 | 20.4 |
| 1963 | 18 | 20.4 |
| 1964 | 23 | 20.4 |
| 1965 | 8 | 20.4 |
| 1966 | 23 | 20.4 |
| 1967 | 13 | 20.4 |
| 1968 | 14 | 20.4 |
| 1969 | 23 | 20.4 |
| 1970 | 27 | 25.5 |
| 1971 | 26 | 25.5 |
| 1972 | 25 | 25.5 |
| 1973 | 15 | 25.5 |
| 1974 | 24 | 25.5 |
| 1975 | 13 | 25.5 |
| 1976 | 26 | 25.5 |
| 1977 | 34 | 25.5 |
| 1978 | 32 | 25.5 |
| 1979 | 33 | 25.5 |
| 1981 | 34 | 21 |
| 1982 | 22 | 21 |
| 1983 | 13 | 21 |
| 1985 | 29 | 21 |
| 1986 | 22 | 21 |
| 1987 | 5 | 21 |
| 1989 | 22 | 21 |
| 1990 | 30 | 19.3 |
| 1991 | 10 | 19.3 |
| 1992 | 8 | 19.3 |
| 1993 | 14 | 19.3 |
| 1994 | 35 | 19.3 |
| 1995 | 27 | 19.3 |
| 1996 | 34 | 19.3 |
| 1997 | 7 | 19.3 |
| 1998 | 21 | 19.3 |
| 1999 | 7 | 19.3 |
| 2000 | 47 | 40.9 |
| 2001 | 30 | 40.9 |
| 2002 | 54 | 40.9 |
| 2003 | 52 | 40.9 |
| 2004 | 28 | 40.9 |
| 2005 | 30 | 40.9 |
| 2006 | 36 | 40.9 |
| 2007 | 50 | 40.9 |
| Year | First date | Last date |
|---|---|---|
| 1932 | 1932-06-14 | 1932-08-24 |
| 1933 | 1933-06-10 | 1933-09-06 |
| 1935 | 1935-06-09 | 1935-09-17 |
| 1936 | 1936-06-12 | 1936-08-26 |
| 1942 | 1942-05-11 | 1942-09-17 |
| 1943 | 1943-07-05 | 1943-07-30 |
| 1944 | 1944-07-28 | 1944-07-28 |
| 1945 | 1945-07-05 | 1945-08-23 |
| 1946 | 1946-06-30 | 1946-08-10 |
| 1947 | 1947-07-02 | 1947-08-06 |
| 1948 | 1948-07-09 | 1948-09-03 |
| 1949 | 1949-07-16 | 1949-08-31 |
| 1950 | 1950-07-01 | 1950-09-03 |
| 1951 | 1951-06-28 | 1951-08-18 |
| 1952 | 1952-06-09 | 1952-08-08 |
| 1953 | 1953-06-10 | 1953-08-08 |
| 1954 | 1954-06-18 | 1954-09-01 |
| 1955 | 1955-06-22 | 1955-09-06 |
| 1956 | 1956-05-31 | 1956-08-10 |
| 1957 | 1957-06-05 | 1957-08-18 |
| 1958 | 1958-06-23 | 1958-08-15 |
| 1959 | 1959-06-06 | 1959-08-17 |
| 1960 | 1960-06-03 | 1960-08-30 |
| 1961 | 1961-06-09 | 1961-08-22 |
| 1962 | 1962-06-20 | 1962-08-16 |
| 1963 | 1963-06-26 | 1963-08-01 |
| 1964 | 1964-07-02 | 1964-08-10 |
| 1965 | 1965-07-04 | 1965-08-12 |
| 1966 | 1966-06-25 | 1966-08-18 |
| 1967 | 1967-07-01 | 1967-08-25 |
| 1968 | 1968-06-18 | 1968-07-21 |
| 1969 | 1969-07-02 | 1969-08-26 |
| 1970 | 1970-06-24 | 1970-08-29 |
| 1971 | 1971-06-20 | 1971-09-12 |
| 1972 | 1972-06-13 | 1972-08-12 |
| 1973 | 1973-06-26 | 1973-08-16 |
| 1974 | 1974-06-13 | 1974-09-09 |
| 1975 | 1975-06-30 | 1975-08-10 |
| 1976 | 1976-06-20 | 1976-09-05 |
| 1977 | 1977-06-01 | 1977-09-07 |
| 1978 | 1978-06-21 | 1978-09-05 |
| 1979 | 1979-06-25 | 1979-09-07 |
| 1981 | 1981-06-02 | 1981-08-26 |
| 1982 | 1982-06-27 | 1982-08-21 |
| 1983 | 1983-06-18 | 1983-08-06 |
| 1985 | 1985-06-07 | 1985-08-31 |
| 1986 | 1986-06-14 | 1986-09-06 |
| 1987 | 1987-07-08 | 1987-08-18 |
| 1989 | 1989-05-28 | 1989-07-22 |
| 1990 | 1990-06-04 | 1990-09-14 |
| 1991 | 1991-07-02 | 1991-08-30 |
| 1992 | 1992-06-23 | 1992-08-21 |
| 1993 | 1993-06-14 | 1993-08-02 |
| 1994 | 1994-06-23 | 1994-08-26 |
| 1995 | 1995-07-06 | 1995-09-05 |
| 1996 | 1996-06-07 | 1996-08-16 |
| 1997 | 1997-07-06 | 1997-08-20 |
| 1998 | 1998-06-28 | 1998-08-30 |
| 1999 | 1999-06-24 | 1999-07-23 |
| 2000 | 2000-05-28 | 2000-09-17 |
| 2001 | 2001-06-07 | 2001-08-27 |
| 2002 | 2002-05-30 | 2002-08-26 |
| 2003 | 2003-05-27 | 2003-08-21 |
| 2004 | 2004-06-03 | 2004-08-31 |
| 2005 | 2005-05-20 | 2005-08-29 |
| 2006 | 2006-06-02 | 2006-08-21 |
| 2007 | 2007-06-15 | 2007-09-02 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 67 | 74 | 1942 | 50 |
| 35 C (95 F): Days | 10 | 10 | 1942 | 4 |
| 90 F (32.2 C): Days | 55 | 40 | 1942 | 17 |
| 0 C (32 F): Ice days (max | 67 | 49 | 1964 | 26 |
| 0 C (32 F): Frost days (min | 69 | 232 | 1971 | 171 |
| -10 C (14 F): Days with min | 69 | 96 | 1974 | 65 |
| -20 C (-4 F): Days with min | 66 | 26 | 1949 | 11 |
| -30 C (-22 F): Days with min | 13 | 3 | 1971 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 70 | 20 | 1935 | 13 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 40 | 3 | 1947 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 2 | 1 | 1942 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 64 | 13 | 1936 | 6 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 13 | 4 | 1932 | 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 (2025-12-31).