Almanac Averages and Extremes for May 11
CALGARY INT'L A
ALBERTA
| Category (Period of Record) | Value | Year |
|---|---|---|
| Average Maximum Temperature | 15.7 °C | |
| Average Minimum Temperature | 2.4 °C | |
| Monthly Frequency of Precipitation | 36 % | |
| Highest Temperature (1885-2012) | ||
| Lowest Temperature (1885-2012) | -6.5 °C | 1999 |
| Greatest Precipitation (1885-2012) | 34.8 mm | 1909 |
| Greatest Rainfall (1885-2012) | 30.0 mm | 1954 |
| Greatest Snowfall (1885-2012) | 20.8 cm | 1909 |
| Most Snow on the Ground (1955-2012) | 5.0 cm | 2004 |
| 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 | 15.7 | 1.4 | 8.6 | 0.0 | 0.0 | 0.0 | 0 | 27LegendEE | 37LegendEE |
| 2011 | 21.4 | 2.9 | 12.2 | 0.0 | 0.0 | 0.0 | 0 | 16 | 54 |
| 2010 | 13.8 | -1.9 | 6.0 | 0.0 | 0.0 | 0.0 | 0 | <31 | |
| 2009 | 17.7 | 1.7 | 9.7 | 0.0 | 0.0 | 0.0 | 0 | 17LegendEE | 32LegendEE |
| 2008 | 13.8 | 2.6 | 8.2 | 0.0 | 0.0 | 0.0 | 0 | 36LegendEE | 46LegendEE |
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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