Rossburn Threshold Days by Year
14 fixed thresholds counted per year at Rossburn (CA005012500): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Rossburn Thresholds
- Rossburn: days with a maximum temperature at or above 30 C (86 F) in 20 years, most in 1983 with 20.
- Rossburn: days with a maximum temperature at or below 0 C (32 F) in 20 years, most in 1972 with 150.
- Rossburn: nights with a minimum temperature at or below 0 C (32 F) in 20 years, most in 1983 with 219.
- Rossburn: nights with a minimum temperature at or below -10 C (14 F) in 20 years, most in 1966 with 132.
- 14 fixed thresholds have at least one qualifying day at Rossburn.
Days at or above 30 C (86 F)
20 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1958 | 15 | 11.5 |
| 1959 | 8 | 11.5 |
| 1960 | 14 | 8.4 |
| 1963 | 11 | 8.4 |
| 1964 | 3 | 8.4 |
| 1965 | 4 | 8.4 |
| 1966 | 9 | 8.4 |
| 1967 | 12 | 8.4 |
| 1968 | 3 | 8.4 |
| 1969 | 11 | 8.4 |
| 1970 | 13 | 7.3 |
| 1971 | 5 | 7.3 |
| 1972 | 8 | 7.3 |
| 1973 | 11 | 7.3 |
| 1974 | 6 | 7.3 |
| 1975 | 11 | 7.3 |
| 1976 | 3 | 7.3 |
| 1978 | 1 | 7.3 |
| 1982 | 5 | 12.5 |
| 1983 | 20 | 12.5 |
| Year | First date | Last date |
|---|---|---|
| 1958 | 1958-05-12 | 1958-08-18 |
| 1959 | 1959-06-06 | 1959-08-08 |
| 1960 | 1960-05-12 | 1960-08-18 |
| 1963 | 1963-06-28 | 1963-09-09 |
| 1964 | 1964-06-27 | 1964-10-13 |
| 1965 | 1965-08-10 | 1965-08-13 |
| 1966 | 1966-06-20 | 1966-08-30 |
| 1967 | 1967-07-05 | 1967-09-06 |
| 1968 | 1968-07-06 | 1968-07-12 |
| 1969 | 1969-05-26 | 1969-08-25 |
| 1970 | 1970-06-03 | 1970-09-05 |
| 1971 | 1971-06-03 | 1971-08-28 |
| 1972 | 1972-05-18 | 1972-08-30 |
| 1973 | 1973-06-23 | 1973-08-27 |
| 1974 | 1974-06-25 | 1974-08-07 |
| 1975 | 1975-07-05 | 1975-07-30 |
| 1976 | 1976-08-23 | 1976-09-06 |
| 1978 | 1978-08-11 | 1978-08-11 |
| 1982 | 1982-07-04 | 1982-09-10 |
| 1983 | 1983-06-10 | 1983-09-02 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 20 | 20 | 1983 | 20 |
| 35 C (95 F): Days | 2 | 2 | 1983 | 2 |
| 90 F (32.2 C): Days | 17 | 7 | 1983 | 7 |
| 0 C (32 F): Ice days (max | 20 | 150 | 1972 | 125 |
| 0 C (32 F): Frost days (min | 20 | 219 | 1983 | 219 |
| -10 C (14 F): Days with min | 20 | 132 | 1966 | 123 |
| -20 C (-4 F): Days with min | 20 | 80 | 1978 | 53 |
| -30 C (-22 F): Days with min | 20 | 34 | 1972 | 19 |
| -40 C (-40 F): Days with min | 5 | 4 | 1972 | 1 |
| 20 C (68 F): Tropical nights (min | 9 | 3 | 1975 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 20 | 24 | 1975 | 5 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 16 | 6 | 1970 | 2 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 1 | 1 | 1968 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 16 | 7 | 1975 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1958.
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 2026-10-14 (14 October 2026). Threshold counts are computed by this site.
Data as of . Last revised (2026-10-14).