Almanac Averages and Extremes for October 21

OTTAWA MACDONALD-CARTIER INT'L A
ONTARIO

45°19'21.000" N
75°40'09.000" W
114.00 m
6106000
71628
YOW

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Almanac Averages & Extremes
Averages and Extremes
Category (Period of Record) Value Year
Average Maximum Temperature 11.3 °C  
Average Minimum Temperature 2.0 °C  
Monthly Frequency of Precipitation 46 %  
Highest Temperature (1939-2011) 24.2 °C 1979
Lowest Temperature (1939-2011) -5.6 °C 1946, 1959
Greatest Precipitation (1939-2011) 58.8 mm 1995
Greatest Rainfall (1939-2011) 58.8 mm 1995
Greatest Snowfall (1939-2011) 1.8 cm 1981
Most Snow on the Ground (1955-2010) 2.0 cm 1992
Most Recent Daily Data for October 21
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
Year
2011  11.7 6.7 9.2 2.0 0.0 2.0     <31
2010 7.7 1.7 4.7 1.0 0.0 1.0 0 29LegendEE 48LegendEE
2009 9.0 4.0 6.5 7.0 0.0 7.0 0   <31
2008 7.6 2.4 5.0 14.4 0.0 14.4 0 2LegendEE 37LegendEE
2007 22.4 8.7 15.6 0.0 0.0 0.0 0 22LegendEE 43LegendEE

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] = No data available
  • ^ = The value displayed is based on incomplete data
  • † = Data for this day has undergone only basic quality checking
  • ‡ = Partner data that is not subject to review by the National Climate Archives
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