Petawawa A Threshold Days by Year (CA006106398)
16 fixed thresholds counted per year at Petawawa A (CA006106398): hot days, frost, tropical nights and heavy rain, with the most days in a year.
Key Facts for Petawawa A Thresholds
- Petawawa A: days with a maximum temperature at or above 30 C (86 F) in 13 years, most in 1975 with 25.
- Petawawa A: days with a maximum temperature at or below 0 C (32 F) in 13 years, most in 1972 with 104.
- Petawawa A: nights with a minimum temperature at or below 0 C (32 F) in 13 years, most in 1972 with 210.
- Petawawa A: nights with a minimum temperature at or below -10 C (14 F) in 13 years, most in 1976 with 110.
- 16 fixed thresholds have at least one qualifying day at Petawawa A.
Days at or above 30 C (86 F)
13 years with a qualifying day| Year | Days | Decade average |
|---|---|---|
| 1970 | 22 | 14 |
| 1971 | 16 | 14 |
| 1972 | 4 | 14 |
| 1973 | 13 | 14 |
| 1974 | 9 | 14 |
| 1975 | 25 | 14 |
| 1976 | 13 | 14 |
| 1977 | 15 | 14 |
| 1978 | 16 | 14 |
| 1979 | 7 | 14 |
| 1980 | 4 | 6.3 |
| 1981 | 6 | 6.3 |
| 1982 | 9 | 6.3 |
| Year | First date | Last date |
|---|---|---|
| 1970 | 1970-06-09 | 1970-08-16 |
| 1971 | 1971-05-18 | 1971-09-03 |
| 1972 | 1972-05-23 | 1972-07-18 |
| 1973 | 1973-07-03 | 1973-09-03 |
| 1974 | 1974-04-28 | 1974-08-22 |
| 1975 | 1975-05-20 | 1975-08-25 |
| 1976 | 1976-04-18 | 1976-08-28 |
| 1977 | 1977-05-16 | 1977-08-28 |
| 1978 | 1978-05-25 | 1978-08-15 |
| 1979 | 1979-05-08 | 1979-07-23 |
| 1980 | 1980-06-24 | 1980-08-06 |
| 1981 | 1981-07-06 | 1981-08-01 |
| 1982 | 1982-07-06 | 1982-09-13 |
Every Fixed Threshold
| Threshold | Years with a qualifying day | Most days in a year | Year | Latest year days |
|---|---|---|---|---|
| 30 C (86 F): Days | 13 | 25 | 1975 | 9 |
| 35 C (95 F): Days | 3 | 4 | 1975 | 1 |
| 90 F (32.2 C): Days | 12 | 15 | 1975 | 3 |
| 100 F (37.8 C): Days | 2 | 1 | 1975 | 1 |
| 0 C (32 F): Ice days (max | 13 | 104 | 1972 | 84 |
| 0 C (32 F): Frost days (min | 13 | 210 | 1972 | 181 |
| -10 C (14 F): Days with min | 13 | 110 | 1976 | 94 |
| -20 C (-4 F): Days with min | 13 | 60 | 1976 | 48 |
| -30 C (-22 F): Days with min | 13 | 17 | 1976 | 10 |
| -40 C (-40 F): Days with min | 2 | 1 | 1976 | 1 |
| 20 C (68 F): Tropical nights (min | 6 | 3 | 1973 | 1 |
| 10 mm (0.39 in): Days with 10 mm or more rain | 13 | 42 | 1972 | 17 |
| 25 mm (0.98 in): Days with 25 mm or more rain | 13 | 8 | 1972 | 3 |
| 50 mm (1.97 in): Days with 50 mm or more rain | 1 | 1 | 1973 | 1 |
| 10 cm (3.9 in): Days with 10 cm or more snowfall | 13 | 10 | 1971 | 1 |
| 25 cm (9.8 in): Days with 25 cm or more snowfall | 5 | 1 | 1972 | 1 |
Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1970.
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).