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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.

ST CATHARINES
ONTARIO

DefinitionLatitude:
43°12' N
DefinitionLongitude:
79°15' W
DefinitionElevation:
91 m

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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 7.0 13.2 18.8 22.0 21.0 17.0 LegendNXN 5.0 -0.7 LegendNXN
Daily Maximum (°C)LegendNXN LegendNXN 5.2 12.0 18.9 24.1 27.2 26.0 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)20.0 19.4 26.7 32.2 35.0 36.1 40.0 38.3 36.7 31.1 25.0 21.0
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 -15.0 -4.4 1.0 -20.0 4.0 0.0 -7.0 -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 14.0 3.0 0.3 0.4 0.0 0.0 0.0 0.4 5.0 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 0.0 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 77.0 59.7 45.0 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 34.0 25.4 14.0 7.0 9.0 0.0 0.0 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 77.0 59.7 45.0 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 61.0 124.4 100.9 LegendNXN LegendNXN LegendNXN LegendNXN LegendNXN
Above 5 °CLegendNXN LegendNXN LegendNXN 90.5 264.5 413.0 522.2 494.2 LegendNXN LegendNXN LegendNXN LegendNXN LegendNXN
Below 0 °CLegendNXN LegendNXN LegendNXN 3.0 0.0 0.0 0.0 0.0 LegendNXN LegendNXN LegendNXN LegendNXN LegendNXN
Below 18 °CLegendNXN LegendNXN LegendNXN 328.5 154.9 38.0 5.2 9.7 LegendNXN LegendNXN LegendNXN LegendNXN LegendNXN
Days With
Maximum Temperature >0 °CLegendNXN LegendNXN LegendNXN 30.0 31.0 30.0 31.0 31.0 30.0 LegendNXN LegendNXN 22.0 LegendNXN
Measurable Rainfall4.0 LegendNXN 8.0 11.0 11.0 9.0 8.0 9.0 10.0 12.0 11.0 8.0 LegendNXN
Measurable SnowfallLegendNXN LegendNXN 3.0 Legend** Legend** Legend** 0.0 0.0 0.0 Legend** 1.0 5.0 LegendNXN
Measurable PrecipitationLegendNXN LegendNXN 10.0 11.0 11.0 9.0 8.0 9.0 10.0 12.0 12.0 13.0 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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