Almanac Averages and Extremes for December 20
CALGARY INT'L A
ALBERTA
Category (Period of Record) | Value | Year |
---|---|---|
Average Maximum Temperature | -1.7 °C | |
Average Minimum Temperature | -13.9 °C | |
Monthly Frequency of Precipitation | 22 % | |
Highest Temperature (1881-2011) | 13.9 °C | 1954 |
Lowest Temperature (1881-2011) | -35.0 °C | 1921 |
Greatest Precipitation (1881-2011) | 11.7 mm | 1953 |
Greatest Rainfall (1881-2011) | 1.5 mm | 1939 |
Greatest Snowfall (1881-2011) | 11.7 cm | 1953 |
Most Snow on the Ground (1955-2011) | 29.0 cm | 2008 |
Year | Maximum Temperature DefinitionMax Temp °C |
Minimum Temperature DefinitionMin Temp °C |
Mean Temperature DefinitionMean Temp °C |
Total Rain DefinitionTotal Rain mm |
Total Snow DefinitionTotal Snow cm |
Total Precipitation DefinitionTotal Precip mm |
Snow on Ground DefinitionSnow on Grnd cm |
Direction of Maximum Gust DefinitionDir of Max Gust 10's deg |
Speed of Maximum Gust DefinitionSpd of Max Gust km/h |
---|---|---|---|---|---|---|---|---|---|
2011 | 9.2 | -1.2 | 4.0 | 0.0 | 0.0 | 0.0 | LegendTT | 28LegendEE | 54LegendEE |
2010 | -14.7 | -21.6 | -18.2 | 0.0 | LegendTT | LegendTT | 9 | <31 | |
2009 | -4.7 | -12.3 | -8.5 | 0.0 | 3.6 | 2.4 | 7 | 34LegendEE | 54LegendEE |
2008 | -20.1 | -30.4 | -25.3 | 0.0 | LegendTT | LegendTT | 29 | <31 | |
2007 | 4.4 | -9.0 | -2.3 | 0.0 | 0.4 | LegendTT | LegendTT | 1LegendEE | 57LegendEE |
Legend
- A = Accumulated
- B = More than one occurrence and estimated
- C = Precipitation occurred, amount uncertain
- E = Estimated
- F = Accumulated and estimated
- L = Precipitation may or may not have occurred
- M = Missing
- N = Temperature missing but known to be > 0
- S = More than one occurrence
- T = Trace
- Y = Temperature missing but known to be < 0
- [empty] = Indicates an unobserved value
- ^ = The value displayed is based on incomplete data
- † = Data that is not subject to review by the National Climate Archives
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