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Almanac Averages and Extremes for September 12

CALGARY INT'L A
ALBERTA

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Almanac Averages & Extremes
Averages and Extremes
Category (Period of Record) Value Year
Average Maximum Temperature 18.0 °C  
Average Minimum Temperature 4.5 °C  
Monthly Frequency of Precipitation 30 %  
Highest Temperature (1884-2011) 30.0 °C 1888, 1937
Lowest Temperature (1884-2011) -6.1 °C 1890
Greatest Precipitation (1884-2011) 92.6 mm 1985
Greatest Rainfall (1884-2011) 92.6 mm 1985
Greatest Snowfall (1884-2011) 8.9 cm 1907
Most Snow on the Ground (1955-2011)    
Most Recent Daily Data for September 12
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 12.3 7.7 10.0 0.0 0.0 0.0 0   <31
2010 16.0 1.3 8.7 0.4 0.0 0.4 0   <31
2009 26.6 5.8 16.2 0.0 0.0 0.0 0 15LegendEE 39LegendEE
2008 16.7 5.6 11.2 6.2 0.0 6.2 0 30LegendEE 37LegendEE
2007 11.8 2.4 7.1 20.0 0.0 20.0 0 1LegendEE 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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