Coronation A Threshold Days by Year (CA003011880)
17 fixed thresholds counted per year at Coronation A (CA003011880): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Coronation A Thresholds
- Coronation A: days with a maximum temperature at or above 30 C (86 F) in 39 years, most in 1961 with 25.
- Coronation A: days with a maximum temperature at or below 0 C (32 F) in 39 years, most in 1951 with 145.
- Coronation A: nights with a minimum temperature at or below 0 C (32 F) in 39 years, most in 1959 with 222.
- Coronation A: nights with a minimum temperature at or below -10 C (14 F) in 39 years, most in 1982 with 140.
- 17 fixed thresholds have at least one qualifying day at Coronation A.
Days at or above 30 C (86 F)
39 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1945 | 12 | 10.4 |
| 1946 | 8 | 10.4 |
| 1947 | 17 | 10.4 |
| 1948 | 8 | 10.4 |
| 1949 | 7 | 10.4 |
| 1950 | 4 | 6.4 |
| 1951 | 3 | 6.4 |
| 1952 | 4 | 6.4 |
| 1953 | 6 | 6.4 |
| 1954 | 3 | 6.4 |
| 1955 | 10 | 6.4 |
| 1956 | 4 | 6.4 |
| 1957 | 5 | 6.4 |
| 1958 | 16 | 6.4 |
| 1959 | 9 | 6.4 |
| 1960 | 12 | 11.2 |
| 1961 | 25 | 11.2 |
| 1962 | 2 | 11.2 |
| 1963 | 8 | 11.2 |
| 1964 | 8 | 11.2 |
| 1965 | 14 | 11.2 |
| 1966 | 9 | 11.2 |
| 1967 | 15 | 11.2 |
| 1968 | 6 | 11.2 |
| 1969 | 13 | 11.2 |
| 1970 | 17 | 9.6 |
| 1971 | 15 | 9.6 |
| 1972 | 9 | 9.6 |
| 1973 | 8 | 9.6 |
| 1974 | 8 | 9.6 |
| 1975 | 10 | 9.6 |
| 1976 | 3 | 9.6 |
| 1977 | 8 | 9.6 |
| 1978 | 9 | 9.6 |
| 1979 | 9 | 9.6 |
| 1980 | 2 | 8.8 |
| 1981 | 19 | 8.8 |
| 1982 | 4 | 8.8 |
| 1983 | 10 | 8.8 |
| Year | First date | Last date |
|---|---|---|
| 1945 | 1945-06-21 | 1945-08-18 |
| 1946 | 1946-07-11 | 1946-08-23 |
| 1947 | 1947-07-02 | 1947-08-08 |
| 1948 | 1948-06-07 | 1948-09-10 |
| 1949 | 1949-06-09 | 1949-08-17 |
| 1950 | 1950-06-20 | 1950-09-03 |
| 1951 | 1951-07-27 | 1951-08-04 |
| 1952 | 1952-08-06 | 1952-09-26 |
| 1953 | 1953-07-12 | 1953-08-19 |
| 1954 | 1954-07-05 | 1954-07-19 |
| 1955 | 1955-07-14 | 1955-09-02 |
| 1956 | 1956-06-01 | 1956-07-20 |
| 1957 | 1957-07-13 | 1957-07-26 |
| 1958 | 1958-05-28 | 1958-09-11 |
| 1959 | 1959-07-11 | 1959-08-01 |
| 1960 | 1960-07-06 | 1960-09-03 |
| 1961 | 1961-06-03 | 1961-08-24 |
| 1962 | 1962-06-24 | 1962-06-25 |
| 1963 | 1963-06-19 | 1963-09-08 |
| 1964 | 1964-07-07 | 1964-08-18 |
| 1965 | 1965-06-11 | 1965-08-23 |
| 1966 | 1966-05-29 | 1966-09-18 |
| 1967 | 1967-07-16 | 1967-09-05 |
| 1968 | 1968-06-26 | 1968-07-28 |
| 1969 | 1969-06-04 | 1969-08-24 |
| 1970 | 1970-06-02 | 1970-08-23 |
| 1971 | 1971-07-16 | 1971-08-21 |
| 1972 | 1972-05-30 | 1972-08-28 |
| 1973 | 1973-06-22 | 1973-08-13 |
| 1974 | 1974-06-23 | 1974-08-05 |
| 1975 | 1975-07-03 | 1975-08-28 |
| 1976 | 1976-08-14 | 1976-08-25 |
| 1977 | 1977-04-26 | 1977-07-21 |
| 1978 | 1978-06-04 | 1978-08-10 |
| 1979 | 1979-06-29 | 1979-09-15 |
| 1980 | 1980-07-09 | 1980-09-06 |
| 1981 | 1981-07-03 | 1981-09-19 |
| 1982 | 1982-06-21 | 1982-08-10 |
| 1983 | 1983-07-31 | 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 | 39 | 25 | 1961 | 10 |
| 35 C (95 F): Days | 10 | 2 | 1955 | 1 |
| 90 F (32.2 C): Days | 34 | 12 | 1961 | 3 |
| 100 F (37.8 C): Days | 1 | 1 | 1961 | 1 |
| 0 C (32 F): Ice days (max | 39 | 145 | 1951 | 108 |
| 0 C (32 F): Frost days (min | 39 | 222 | 1959 | 216 |
| -10 C (14 F): Days with min | 39 | 140 | 1982 | 96 |
| -20 C (-4 F): Days with min | 39 | 73 | 1950 | 40 |
| -30 C (-22 F): Days with min | 39 | 26 | 1950 | 12 |
| -40 C (-40 F): Days with min | 12 | 5 | 1950 | 3 |
| 20 C (68 F): Tropical nights (min | 1 | 1 | 1955 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 39 | 17 | 1951 | 6 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 30 | 5 | 1966 | 4 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 5 | 2 | 1983 | 2 |
| 100 mm (3.94 in): Days with 100 mm or more rain | 1 | 1 | 1973 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 31 | 8 | 1974 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 2 | 1 | 1950 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1945.
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).