Station Results | Canadian Climate Normals 1961-1990

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.

Metadata including Station Name, Province, Latitude, Longitude, Elevation
GRIMSBY
ONTARIO
DefinitionLatitude:43°12' N DefinitionLongitude:79°34' W DefinitionElevation:91 m
1961 to 1990 Canadian Climate Normals station data
 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Temperature
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/ 28Legend++ 1962/ 27Legend++ 1911/ 29 1925/ 06Legend++ 1911/ 04 1948/ 25Legend++ 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/ 01Legend++ 1926/ 14Legend++ 1965/ 30Legend++ 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)LegendNXN LegendNXN LegendNXN LegendNXN 0 LegendNXN 0 0 LegendNXN LegendNXN LegendNXN LegendNXN
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/ 31Legend++ 1985/ 30Legend++ 1985/ 31Legend++ 1985/ 31Legend++ 1984/ 30Legend++ 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 Rainfall4 4 8 11 11 9 8 10 10 11 10 6 103
Measurable Snowfall9 7 4 1 0 0 0 0 0 Legend** 2 8 31
Measurable Precipitation13 11 12 12 11 9 8 10 10 11 12 13 131
Legend
  • C = Calm
  • M = no data for the period
  • N or X = data exists, but not enough to derive a value
  • + = most recent occurrence of the extreme value
  • * = quantity is less than one