Robson Threshold Days by Year (CA001146810)
15 fixed thresholds counted per year at Robson (CA001146810): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Robson Thresholds
- Robson: days with 10 mm (0.39 in) or more of precipitation in 32 years, most in 1975 with 28.
- Robson: days with 10 cm (3.9 in) or more of snowfall in 30 years, most in 1968 with 11.
- Robson: days with 25 mm (0.98 in) or more of precipitation in 25 years, most in 1951 with 6.
- Robson: days with a maximum temperature at or above 30 C (86 F) in 15 years, most in 1967 with 52.
- 15 fixed thresholds have at least one qualifying day at Robson.
Days at or above 30 C (86 F)
15 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1965 | 28 | 28.8 |
| 1966 | 16 | 28.8 |
| 1967 | 52 | 28.8 |
| 1968 | 20 | 28.8 |
| 1969 | 28 | 28.8 |
| 1970 | 40 | 29.3 |
| 1971 | 39 | 29.3 |
| 1972 | 22 | 29.3 |
| 1973 | 38 | 29.3 |
| 1974 | 27 | 29.3 |
| 1975 | 20 | 29.3 |
| 1976 | 10 | 29.3 |
| 1977 | 33 | 29.3 |
| 1978 | 24 | 29.3 |
| 1979 | 40 | 29.3 |
| Year | First date | Last date |
|---|---|---|
| 1965 | 1965-06-09 | 1965-08-18 |
| 1966 | 1966-06-16 | 1966-09-06 |
| 1967 | 1967-06-15 | 1967-09-28 |
| 1968 | 1968-06-25 | 1968-08-10 |
| 1969 | 1969-06-03 | 1969-09-12 |
| 1970 | 1970-05-16 | 1970-08-27 |
| 1971 | 1971-06-22 | 1971-08-29 |
| 1972 | 1972-05-29 | 1972-08-29 |
| 1973 | 1973-05-17 | 1973-09-11 |
| 1974 | 1974-06-11 | 1974-08-30 |
| 1975 | 1975-06-01 | 1975-08-14 |
| 1976 | 1976-07-15 | 1976-09-01 |
| 1977 | 1977-06-06 | 1977-08-21 |
| 1978 | 1978-06-04 | 1978-08-10 |
| 1979 | 1979-06-02 | 1979-08-29 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 15 | 52 | 1967 | 40 |
| 35 C (95 F): Days | 11 | 8 | 1967 | 2 |
| 90 F (32.2 C): Days | 15 | 29 | 1967 | 17 |
| 100 F (37.8 C): Days | 2 | 3 | 1967 | 1 |
| 0 C (32 F): Ice days (max | 15 | 49 | 1978 | 41 |
| 0 C (32 F): Frost days (min | 15 | 147 | 1977 | 131 |
| -10 C (14 F): Days with min | 15 | 30 | 1972 | 13 |
| -20 C (-4 F): Days with min | 1 | 4 | 1968 | 4 |
| 20 C (68 F): Tropical nights (min | 1 | 1 | 1975 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 32 | 28 | 1975 | 16 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 25 | 6 | 1951 | 1 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 2 | 1 | 1952 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 30 | 11 | 1968 | 5 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 6 | 4 | 1951 | 1 |
| 50 cm (19.7 in): Days with 50 cm or more snowfall | 1 | 1 | 1965 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1965.
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).