Almanac Averages and Extremes for December 15
CALGARY INT'L A
ALBERTA
| Category (Period of Record) | Value | Year |
|---|---|---|
| Average Maximum Temperature | -1.3 °C | |
| Average Minimum Temperature | -13.3 °C | |
| Monthly Frequency of Precipitation | 22 % | |
| Highest Temperature (1881-2011) | 16.4 °C | 1980 |
| Lowest Temperature (1881-2011) | -34.4 °C | 1924 |
| Greatest Precipitation (1881-2011) | 15.2 mm | 1901 |
| Greatest Rainfall (1881-2011) | ||
| Greatest Snowfall (1881-2011) | 15.2 cm | 1901 |
| Most Snow on the Ground (1955-2011) | 23.0 cm | 1995 |
| 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 | -2.8 | -8.3 | -5.6 | 0.0 | LegendTT | LegendTT | 2 | 35 | 32 |
| 2010 | 1.9 | -11.2 | -4.7 | 0.0 | LegendTT | LegendTT | 1 | 27LegendEE | 44LegendEE |
| 2009 | -1.1 | -29.4 | -15.3 | 0.0 | LegendTT | LegendTT | 11 | <31 | |
| 2008 | -16.3 | -30.6 | -23.5 | 0.0 | LegendTT | LegendTT | 21 | <31 | |
| 2007 | 3.9 | -16.1 | -6.1 | 0.0 | 0.0 | 0.0 | 2 | 26LegendEE | 65LegendEE |
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
- Date modified: