National Climate Data and Information Archive
www.climate.weatheroffice.gc.ca
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Canadian Climate Normals 1961-1990
NOTE!! Data used in the calculation of these Normals may be subject to further quality assurance checks. This may result in minor changes to some values presented here.
GRIMSBY
ONTARIO
ONTARIO
| Latitude: | 43°12' N | Longitude: | 79°34' W | Elevation: | 91 m |
|---|
| Temperature: | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year | |
| Daily (°C) | -4.8 | -3.9 | 0.9 | 7.1 | 13.1 | 18.8 | 21.9 | 21.2 | 17 | 10.9 | 5.1 | -1 | 8.9 | |
| Daily Maximum (°C) | -1.6 | -0.4 | 4.6 | 11.6 | 18.3 | 24 | 26.8 | 25.9 | 21.2 | 14.7 | 8.1 | 2 | 12.9 | |
| Daily Minimum (°C) | -8.2 | -7.5 | -2.8 | 2.5 | 7.7 | 13.6 | 17 | 16.5 | 12.8 | 7 | 2 | -4 | 4.7 | |
| Extreme Maximum (°C) | 19.4 | 17.2 | 26.1 | 30.6 | 36.1 | 36.1 | 40.6 | 39.4 | 37.8 | 31.7 | 26.1 | 21 | ||
| Date(yyyy/dd) | 1950/25 | 1954/28 | 1946/28+ | 1962/27+ | 1911/29 | 1925/06+ | 1911/04 | 1948/25+ | 1953/02 | 1951/05 | 1961/03 | 1982/03 | ||
| Extreme Minimum (°C) | -25 | -26.1 | -21.7 | -16.1 | -2.8 | 2.2 | 6.7 | 4.4 | 0 | -7.2 | -13.9 | -27.2 | ||
| Date(yyyy/dd) | 1914/13 | 1912/10 | 1916/17 | 1923/01 | 1931/01 | 1945/01+ | 1926/14+ | 1965/30+ | 1916/30 | 1925/29 | 1958/30 | 1925/27 | ||
| Precipitation: | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 22.3 | 28.8 | 53.3 | 70.7 | 69.2 | 83 | 56.8 | 86.1 | 92.2 | 64 | 64.5 | 48.3 | 739.2 | |
| Snowfall (cm) | 46.2 | 32.1 | 18.2 | 6.3 | 0 | 0 | 0 | 0 | 0 | 0.6 | 4.4 | 33.8 | 141.6 | |
| Precipitation (mm) | 68.5 | 60.3 | 71.5 | 77 | 69.2 | 83 | 56.8 | 86.1 | 92.2 | 64.6 | 68.9 | 82.1 | 880.3 | |
| Snow Depth at Month-end (cm) | N | N | N | N | 0 | N | 0 | 0 | N | N | N | N | ||
| Extreme Daily Rainfall (mm) | 50.8 | 54.9 | 51.1 | 45.7 | 62.7 | 82 | 66.3 | 107.7 | 60.5 | 122.7 | 59.7 | 40.1 | ||
| Date(yyyy/dd) | 1917/04 | 1954/16 | 1945/31 | 1929/28 | 1953/25 | 1922/11 | 1964/12 | 1950/28 | 1979/14 | 1954/15 | 1951/06 | 1949/20 | ||
| Extreme Daily Snowfall (cm) | 35 | 40.6 | 30.5 | 25 | 0 | 0 | 0 | 0 | 0 | 7.6 | 20.3 | 35.6 | ||
| Date(yyyy/dd) | 1982/31 | 1911/15 | 1949/10 | 1979/08 | 1985/31+ | 1985/30+ | 1985/31+ | 1985/31+ | 1984/30+ | 1962/24 | 1950/23 | 1939/11 | ||
| Extreme Daily Precipitation (mm) | 50.8 | 54.9 | 51.1 | 45.7 | 62.7 | 82 | 66.3 | 107.7 | 60.5 | 122.7 | 59.7 | 40.1 | ||
| Date(yyyy/dd) | 1917/04 | 1954/16 | 1945/31 | 1929/28 | 1953/25 | 1922/11 | 1964/12 | 1950/28 | 1979/14 | 1954/15 | 1951/06 | 1949/20 | ||
| Degree Days: | ||||||||||||||
| Above 18 °C | 0 | 0 | 0 | 1.6 | 14.1 | 60.8 | 125.2 | 107.1 | 40.4 | 4.4 | 0 | 0 | 354 | |
| Above 5 °C | 1.3 | 1.9 | 15.9 | 89 | 248.5 | 414 | 524.2 | 502.8 | 361.4 | 185.9 | 50.3 | 7.7 | 2403 | |
| Below 0 °C | 169.4 | 126.2 | 46.9 | 2.7 | 0 | 0 | 0 | 0 | 0 | 0 | 5.3 | 76.3 | 427 | |
| Below 18 °C | 710.8 | 612.7 | 533.3 | 329.2 | 169 | 36.8 | 4 | 7.3 | 69 | 225.6 | 389.5 | 589.9 | 3677 | |
| Days With: | ||||||||||||||
| Maximum Temperature >0°C | 12 | 13 | 24 | 30 | 31 | 30 | 31 | 31 | 30 | 31 | 29 | 20 | 312 | |
| Measurable Rainfall | 4 | 4 | 8 | 11 | 11 | 9 | 8 | 10 | 10 | 11 | 10 | 6 | 103 | |
| Measurable Snowfall | 9 | 7 | 4 | 1 | 0 | 0 | 0 | 0 | 0 | * | 2 | 8 | 31 | |
| Measurable Precipitation | 13 | 11 | 12 | 12 | 11 | 9 | 8 | 10 | 10 | 11 | 12 | 13 | 131 | |
- Legend
- + = most recent occurrence of the extreme value
- M = no data for the period
- * = quantity is less than one
- N or X = data exists, but not enough to derive a value
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