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Almanac Averages and Extremes for December 18

CALGARY INT'L A
ALBERTA

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Almanac Averages & Extremes
Averages and Extremes
Category (Period of Record) Value Year
Average Maximum Temperature -1.5 °C  
Average Minimum Temperature -13.7 °C  
Monthly Frequency of Precipitation 22 %  
Highest Temperature (1881-2011) 14.4 °C 1954
Lowest Temperature (1881-2011) -36.1 °C 1955
Greatest Precipitation (1881-2011) 6.6 mm 1960
Greatest Rainfall (1881-2011) 0.8 mm 1946
Greatest Snowfall (1881-2011) 12.7 cm 1960
Most Snow on the Ground (1955-2011) 27.0 cm 2008
Most Recent Daily Data for December 18
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 5.8 -7.2 -0.7 0.0 1.2 1.2 LegendTT 34LegendEE 32LegendEE
2010 -11.6 -13.4 -12.5 0.0 2.2 0.2 6   <31
2009 8.2 -13.2 -2.5 0.0 0.0 0.0 8 26 61
2008 -19.4 -25.2 -22.3 0.0 2.6 1.4 27   <31
2007 0.7 -11.8 -5.6 0.0 0.0 0.0 LegendTT 17LegendEE 44LegendEE

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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