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Canadian Climate Normals 1961-1990 Station Data

Temperature and Precipitation Graph
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Normals Data

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.

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ONTARIO

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Normals Station Data
(all elements)
1961 to 1990 Canadian Climate Normals Station Data
 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Temperature
Daily Average (°C)LegendNXN LegendNXN LegendNXN 7 13.2 18.8 22 21 17 LegendNXN 5 -0.7 LegendNXN
Daily Maximum (°C)LegendNXN LegendNXN 5.2 12 18.9 24.1 27.2 26 21.8 14.5 8.5 2.7 LegendNXN
Daily Minimum (°C)-7.1 LegendNXN LegendNXN 2.1 7.5 13.4 16.7 15.9 12.3 5.9 1.3 -4.1 LegendNXN
Extreme Maximum (°C)20 19.4 26.7 32.2 35 36.1 40 38.3 36.7 31.1 25 21
Date (yyyy/dd)1950/ 25 1930/ 20 1945/ 26 1915/ 26 1982/ 20 1933/ 28 1936/ 10 1948/ 27 1953/ 03 1946/ 06 1950/ 01 1982/ 03
Extreme Minimum (°C)-23.3 -23.9 -19.4 -15 -4.4 1 -20 4 0 -7 -13.9 -24.4
Date (yyyy/dd)1914/ 14 1943/ 15Legend++ 1948/ 12Legend++ 1923/ 01 1974/ 07 1982/ 03 1983/ 14 1982/ 29 1929/ 22 1987/ 26Legend++ 1933/ 16 1925/ 27
Precipitation
Rainfall (mm)20.4 LegendNXN 42.8 60.6 70.6 75.1 60.9 75.5 81.5 63.9 70.9 52.1 LegendNXN
Snowfall (cm)LegendNXN LegendNXN 14 3 0.3 0.4 0 0 0 0.4 5 21.2 LegendNXN
Precipitation (mm)LegendNXN LegendNXN 56.8 63.7 70.9 75.5 60.9 75.5 81.5 64.4 75.9 75.3 LegendNXN
Snow Depth at Month-end (cm)LegendNXN LegendNXN LegendNXN LegendNXN 0 0 0 0 0 LegendNXN LegendNXN LegendNXN
Extreme Daily Rainfall (mm)35.8 58.2 48.8 36.8 50.8 70.9 60.5 69.3 77 59.7 45 36.8
Date (yyyy/dd)1929/ 10 1954/ 16 1945/ 31 1939/ 10 1976/ 16Legend++ 1968/ 25 1920/ 24 1938/ 10 1924/ 29 1954/ 15 1985/ 04 1949/ 20
Extreme Daily Snowfall (cm)45.7 34 25.4 14 7 9 0 0 0 10.2 25.4 41.9
Date (yyyy/dd)1902/ 22 1971/ 08 1954/ 29 1979/ 09 1989/ 07 1983/ 26 1990/ 31Legend++ 1990/ 31Legend++ 1990/ 30Legend++ 1969/ 21 1926/ 19 1944/ 11
Extreme Daily Precipitation (mm)45.7 58.2 48.8 36.8 50.8 70.9 60.5 69.3 77 59.7 45 41.9
Date (yyyy/dd)1902/ 22 1954/ 16 1945/ 31 1939/ 10 1976/ 16Legend++ 1968/ 25 1920/ 24 1938/ 10 1924/ 29 1954/ 15 1985/ 04 1944/ 11
Degree Days
Above 18 °CLegendNXN LegendNXN LegendNXN 1.4 15.7 61 124.4 100.9 LegendNXN LegendNXN LegendNXN LegendNXN LegendNXN
Above 5 °CLegendNXN LegendNXN LegendNXN 90.5 264.5 413 522.2 494.2 LegendNXN LegendNXN LegendNXN LegendNXN LegendNXN
Below 0 °CLegendNXN LegendNXN LegendNXN 3 0 0 0 0 LegendNXN LegendNXN LegendNXN LegendNXN LegendNXN
Below 18 °CLegendNXN LegendNXN LegendNXN 328.5 154.9 38 5.2 9.7 LegendNXN LegendNXN LegendNXN LegendNXN LegendNXN
Days With
Maximum Temperature >°CLegendNXN LegendNXN LegendNXN 30 31 30 31 31 30 LegendNXN LegendNXN 22 LegendNXN
Measurable Rainfall4 LegendNXN 8 11 11 9 8 9 10 12 11 8 LegendNXN
Measurable SnowfallLegendNXN LegendNXN 3 Legend** Legend** Legend** 0 0 0 Legend** 1 5 LegendNXN
Measurable PrecipitationLegendNXN LegendNXN 10 11 11 9 8 9 10 12 12 13 LegendNXN

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
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