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Almanac Averages and Extremes for May 21

CALGARY INT'L A
ALBERTA

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Almanac Averages & Extremes
Averages and Extremes
Category (Period of Record) Value Year
Average Maximum Temperature 17.1 °C  
Average Minimum Temperature 3.9 °C  
Monthly Frequency of Precipitation 36 %  
Highest Temperature (1885-2012) 30.6 °C 1928
Lowest Temperature (1885-2012) -5.0 °C 1903
Greatest Precipitation (1885-2012) 30.0 mm 1948
Greatest Rainfall (1885-2012) 30.0 mm 1948
Greatest Snowfall (1885-2012) 20.3 cm 1906
Most Snow on the Ground (1955-2012) 20.0 cm 1997
Most Recent Daily Data for May 21
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
2012 20.4 8.0 14.2 0.0 0.0 0.0 0   <31
2011 21.4 6.9 14.2 0.0 0.0 0.0 0   <31
2010 15.0 1.5 8.3 0.0 0.0 0.0 0 25 59
2009 14.1 -1.4 6.4 0.0 0.0 0.0 0 35LegendEE 35LegendEE
2008 12.3 6.0 9.2 15.8 0.0 15.8 0 32LegendEE 61LegendEE

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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