St Ambroise Threshold Days by Year (CA007066820)
15 fixed thresholds counted per year at St Ambroise (CA007066820): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for St Ambroise Thresholds
- St Ambroise: days with 10 cm (3.9 in) or more of snowfall in 27 years, most in 1972 with 15.
- St Ambroise: days with 10 mm (0.39 in) or more of precipitation in 24 years, most in 1982 with 43.
- St Ambroise: days with 25 mm (0.98 in) or more of precipitation in 24 years, most in 1964 with 7.
- St Ambroise: days with a maximum temperature at or above 30 C (86 F) in 23 years, most in 1970 with 15.
- 15 fixed thresholds have at least one qualifying day at St Ambroise.
Days at or above 30 C (86 F)
23 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1955 | 10 | 5.5 |
| 1956 | 3 | 5.5 |
| 1957 | 1 | 5.5 |
| 1959 | 8 | 5.5 |
| 1960 | 2 | 4.1 |
| 1961 | 2 | 4.1 |
| 1962 | 2 | 4.1 |
| 1963 | 13 | 4.1 |
| 1964 | 1 | 4.1 |
| 1965 | 2 | 4.1 |
| 1966 | 1 | 4.1 |
| 1967 | 10 | 4.1 |
| 1970 | 15 | 9.3 |
| 1971 | 1 | 9.3 |
| 1972 | 5 | 9.3 |
| 1975 | 12 | 9.3 |
| 1976 | 15 | 9.3 |
| 1977 | 8 | 9.3 |
| 1978 | 9 | 9.3 |
| 1980 | 2 | 7.8 |
| 1981 | 10 | 7.8 |
| 1982 | 6 | 7.8 |
| 1983 | 13 | 7.8 |
| Year | First date | Last date |
|---|---|---|
| 1955 | 1955-06-18 | 1955-08-19 |
| 1956 | 1956-06-14 | 1956-08-09 |
| 1957 | 1957-06-23 | 1957-06-23 |
| 1959 | 1959-05-27 | 1959-09-10 |
| 1960 | 1960-05-29 | 1960-08-20 |
| 1961 | 1961-07-23 | 1961-07-24 |
| 1962 | 1962-06-15 | 1962-06-16 |
| 1963 | 1963-06-02 | 1963-07-29 |
| 1964 | 1964-07-18 | 1964-07-18 |
| 1965 | 1965-06-20 | 1965-06-28 |
| 1966 | 1966-05-24 | 1966-05-24 |
| 1967 | 1967-06-03 | 1967-08-08 |
| 1970 | 1970-06-09 | 1970-08-16 |
| 1971 | 1971-06-18 | 1971-06-18 |
| 1972 | 1972-05-28 | 1972-09-01 |
| 1975 | 1975-06-23 | 1975-08-02 |
| 1976 | 1976-06-05 | 1976-08-21 |
| 1977 | 1977-05-22 | 1977-08-29 |
| 1978 | 1978-05-27 | 1978-08-19 |
| 1980 | 1980-05-21 | 1980-08-01 |
| 1981 | 1981-06-05 | 1981-08-01 |
| 1982 | 1982-05-07 | 1982-07-18 |
| 1983 | 1983-06-13 | 1983-09-06 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 23 | 15 | 1970 | 13 |
| 35 C (95 F): Days | 3 | 2 | 1975 | 1 |
| 90 F (32.2 C): Days | 13 | 5 | 1963 | 3 |
| 0 C (32 F): Ice days (max | 23 | 127 | 1965 | 104 |
| 0 C (32 F): Frost days (min | 22 | 236 | 1956 | 199 |
| -10 C (14 F): Days with min | 22 | 122 | 1972 | 92 |
| -20 C (-4 F): Days with min | 22 | 78 | 1972 | 50 |
| -30 C (-22 F): Days with min | 22 | 37 | 1976 | 15 |
| -40 C (-40 F): Days with min | 18 | 8 | 1971 | 1 |
| 20 C (68 F): Tropical nights (min | 8 | 2 | 1961 | 2 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 24 | 43 | 1982 | 28 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 24 | 7 | 1964 | 4 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 4 | 1 | 1963 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 27 | 15 | 1972 | 6 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 13 | 2 | 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 1955.
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).