Canadian Climate Normals 1981-2010 Station Data

The minimum number of years used to calculate these Normals is indicated by a code for each element. A "+" beside an extreme date indicates that this date is the first occurrence of the extreme value. Values and dates in bold indicate all-time extremes for the location.

Data used in the calculation of these Normals may be subject to further quality assurance checks. This may result in minor changes to some values presented here.

Metadata including Station Name, Province, Latitude, Longitude, Elevation, Climate ID, WMO ID, TC ID
CALGARY INT'L A *
ALBERTA
Latitude: 51°06'50.000" N Longitude: 114°01'13.000" W Elevation: 1,084.10 m
Climate ID: 3031093 WMO ID: 71877 TC ID: YYC

* This station meets WMO standards for temperature and precipitation.

Temperature
1981 to 2010 Canadian Climate Normals station data
Temperature
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Daily Average (°C) -7.1 -5.4 -1.6 4.6 9.7 13.7 16.5 15.8 11.0 5.2 -2.4 -6.8 4.4 A
Standard Deviation 4.5 3.6 3.5 1.7 1.6 1.1 1.4 1.5 2.0 1.8 3.6 4.4 1.0 A
Daily Maximum (°C) -0.9 0.7 4.4 11.2 16.3 19.8 23.2 22.8 17.8 11.7 3.4 -0.8 10.8 A
Daily Minimum (°C) -13.2 -11.4 -7.5 -2.0 3.1 7.5 9.8 8.8 4.1 -1.4 -8.2 -12.8 -1.9 A
Extreme Maximum (°C) 17.6 22.6 25.4 29.4 32.4 35.0 36.1 35.6 33.3 29.4 22.8 19.5
Date
(yyyy/dd)
2003/ 07 1992/ 27 2004/ 30 1926/ 29 1986/ 30 1926/ 26 1919/ 15 1914/ 03 1967/ 01 1889/ 05 1975/ 04 1999/ 27
Extreme Minimum (°C) -44.4 -45.0 -37.2 -30.0 -16.7 -3.3 -0.6 -3.2 -13.3 -25.7 -35.0 -42.8
Date
(yyyy/dd)
1893/ 31 1893/ 04 1951/ 08 1954/ 02 1954/ 01 1891/ 08 1884/ 05 1992/ 25 1926/ 24 1984/ 31 1893/ 30 1924/ 17
Precipitation
1981 to 2010 Canadian Climate Normals station data
Precipitation
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Rainfall (mm) 0.1 0.1 2.2 10.8 46.1 93.9 65.5 57.0 41.7 7.5 1.5 0.3 326.4 A
Snowfall (cm) 15 15 23 19 12 0 0 0 4 10 17 15 129 A
Precipitation (mm) 9.4 9.4 17.8 25.2 56.8 94.0 65.5 57.0 45.1 15.3 13.1 10.2 418.8 A
Average Snow Depth (cm) 4 3 3 1 0 0 0 0 0 0 2 4 1 A
Median Snow Depth (cm) 3 2 2 0 0 0 0 0 0 0 1 3 1 A
Snow Depth at Month-end (cm) 3 3 1 0 0 0 0 0 0 1 3 5 1 A
Extreme Daily Rainfall (mm) 7.6 6.4 23.4 37.1 65.0 79.2 95.3 80.8 92.6 45.7 9.2 6.4
Date
(yyyy/dd)
1902/ 07 1885/ 26 1910/ 23 1912/ 30 1902/ 18 1932/ 01 1927/ 15 1945/ 25 1985/ 12 1915/ 01 1992/ 27 1885/ 03
Extreme Daily Snowfall (cm) 25 28 24 46 48 25 0 6 23 30 36 22
Date
(yyyy/dd)
1913/ 03 1951/ 10 1889/ 13 1932/ 21 1981/ 06 1951/ 06 1918/ 23 1900/ 25 1895/ 19 1914/ 04 1914/ 13 1889/ 11
Extreme Daily Precipitation (mm) 25.4 27.7 25.0 45.7 65.0 79.2 95.3 80.8 92.6 45.7 35.6 21.8
Date
(yyyy/dd)
1913/ 03 1951/ 10 1998/ 16 1932/ 21 1902/ 18 1932/ 01 1927/ 15 1945/ 25 1985/ 12 1915/ 01 1914/ 13 1889/ 11
Extreme Snow Depth (cm) 36 37 38 33 22 0 0 0 10 23 25 30
Date
(yyyy/dd)
1997/ 10 1978/ 13 1998/ 18 1966/ 27 2002/ 07 1955/ 01 1955/ 01 1955/ 01 1965/ 26 1957/ 22 1965/ 15 1996/ 30
Days with Maximum Temperature
1981 to 2010 Canadian Climate Normals station data
Days with Maximum Temperature
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
<= 0 °C 13.4 11.1 8.3 2.0 0.2 0.0 0.0 0.0 0.0 2.0 8.4 13.9 59.3 A
> 0 °C 17.6 17.1 22.7 28.0 30.8 30.0 31.0 31.0 30.0 29.0 21.6 17.1 305.9 A
> 10 °C 2.7 4.0 8.3 18.0 26.5 29.4 31.0 30.5 26.0 19.2 5.7 2.4 203.7 A
> 20 °C 0.0 0.0 0.1 2.5 9.0 14.5 23.8 22.0 11.6 3.4 0.1 0.0 87.2 A
> 30 °C 0.0 0.0 0.0 0.0 0.1 0.3 2.1 2.1 0.5 0.0 0.0 0.0 5.1 A
> 35 °C 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 A
Days with Minimum Temperature
1981 to 2010 Canadian Climate Normals station data
Days with Minimum Temperature
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
> 0 °C 1.0 1.2 1.9 9.4 24.7 29.8 31.0 30.9 25.8 12.2 2.1 1.0 170.8 A
<= 2 °C 30.6 27.7 30.4 25.6 12.3 1.3 0.0 0.4 8.8 24.0 29.2 30.6 221.0 A
<= 0 °C 30.0 27.0 29.1 20.6 6.3 0.2 0.0 0.1 4.2 18.8 27.9 30.0 194.4 A
< -2 °C 28.8 25.8 25.6 13.9 2.3 0.0 0.0 0.1 1.4 12.2 24.9 28.8 163.7 A
< -10 °C 17.7 14.4 8.3 1.4 0.0 0.0 0.0 0.0 0.0 1.5 9.9 18.1 71.3 A
< -20 °C 7.3 4.6 2.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 2.0 5.6 21.7 A
< - 30 °C 1.5 0.4 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 1.3 3.7 A
Days with Rainfall
1981 to 2010 Canadian Climate Normals station data
Days with Rainfall
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 0.2 mm 0.27 0.20 1.3 4.1 10.1 13.8 13 10.5 8.7 4.2 1.4 0.40 67.9 A
>= 5 mm 0 0 0.14 0.53 2.9 5.1 4.2 3.6 2.4 0.47 0.07 0 19.3 A
>= 10 mm 0 0 0.03 0.27 1.4 3.1 2.2 1.7 0.90 0.03 0 0 9.6 A
>= 25 mm 0 0 0 0.03 0.17 0.93 0.10 0.37 0.23 0 0 0 1.8 A
Days With Snowfall
1981 to 2010 Canadian Climate Normals station data
Days With Snowfall
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 0.2 cm 7.7 7.4 9.5 6.4 2.6 0.07 0 0.10 1.3 4.1 7.4 7.7 54.2 A
>= 5 cm 0.47 0.57 1.5 0.97 0.69 0 0 0 0.33 0.57 1.1 0.70 6.9 A
>= 10 cm 0.17 0.10 0.31 0.33 0.31 0 0 0 0 0.17 0.20 0.13 1.7 A
>= 25 cm 0 0 0 0.03 0.07 0 0 0 0 0 0 0 0.10 A
Days with Precipitation
1981 to 2010 Canadian Climate Normals station data
Days with Precipitation
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 0.2 mm 7.3 6.8 9.2 9.0 11.2 13.8 13.0 10.6 9.1 7.2 7.6 6.9 111.8 A
>= 5 mm 0.2 0.2 0.9 1.4 3.6 5.1 4.2 3.6 2.7 0.9 0.7 0.4 23.8 A
>= 10 mm 0.1 0.0 0.2 0.5 1.7 3.1 2.2 1.7 1.0 0.2 0.0 0.1 10.7 A
>= 25 mm 0.0 0.0 0.0 0.0 0.2 0.9 0.1 0.4 0.2 0.0 0.0 0.0 1.9 A
Days with Snow Depth
1981 to 2010 Canadian Climate Normals station data
Days with Snow Depth
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 1 cm 18.9 16.3 12.6 4.4 1.4 0 0 0 0.33 3.1 11.6 17 85.6 A
>= 5 cm 8.6 7.4 7 2 0.80 0 0 0 0.03 1.4 5.6 8 40.9 A
>= 10 cm 4.3 2.5 2.1 0.83 0.20 0 0 0 0 0.27 1.6 4.6 16.3 A
>= 20 cm 1 0.03 0.28 0.13 0.07 0 0 0 0 0 0.20 0.90 2.6 A
Wind
1981 to 2010 Canadian Climate Normals station data
Wind
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Speed (km/h) 13.9 13.7 14.6 16.1 16.1 15.0 13.5 12.7 13.4 14.0 13.4 13.7 14.2 A
Most Frequent Direction S S S N N N N N S S S S S A
Maximum Hourly Speed (km/h) 84 89 85 105 90 82 82 97 84 93 84 100
Date
(yyyy/dd)
1934/ 23 1972/ 16 1951/ 15 1935/ 13 1946/ 08 1963/ 22 1944/ 06 1931/ 03 1964/ 05 1993/ 27 1941/ 24 1933/ 23
Direction of Maximum Hourly Speed N NW NW N NW NW NW N NW N W N
Date
(yyyy/dd)
1934/ 23 1972/ 16 1951/ 15 1935/ 13 1946/ 08 1963/ 22 1944/ 06 1931/ 03 1964/ 05 1993/ 27 1941/ 24 1933/ 23
Maximum Gust Speed (km/h) 127 126 114 116 121 127 122 109 111 117 113 111
Date
(yyyy/dd)
1976/ 27 1972/ 16 1974/ 21 1974/ 26 1976/ 11 1956/ 10 1971/ 23 1973/ 05 1984/ 06 1989/ 10 1975/ 03 1962/ 21
Direction of Maximum Gust W NW N NW NW S NW NW W NW SW NW
Date
(yyyy/dd)
1976/ 27 1972/ 16 1974/ 21 1974/ 26 1976/ 11 1956/ 10 1971/ 23 1973/ 05 1984/ 06 1989/ 10 1975/ 03 1962/ 21
Days with Winds >= 52 km/h 3.1 2.1 2.2 2.2 2.6 2.1 1.8 1.7 2.1 2.5 2.1 3.1 27.7 A
Days with Winds >= 63 km/h 1.0 0.6 0.4 0.7 0.8 0.4 0.5 0.3 0.5 0.7 0.6 0.8 7.3 A
Degree Days
1981 to 2010 Canadian Climate Normals station data
Degree Days
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Above 24 °C 0 0 0 0 0 0 0.2 0 0 0 0 0 0.2 A
Above 18 °C 0 0 0 0 1.2 5 20.3 16 2.4 0.1 0 0 44.9 A
Above 15 °C 0 0 0 0.4 7.8 22.7 65.6 57.3 13.4 1.1 0 0 168.1 A
Above 10 °C 0 0.3 0.3 9 52.5 116.7 202.2 183 72 14.2 0.3 0 650.5 A
Above 5 °C 2.4 4 9.6 52.5 159.7 260.6 356.7 335 186.1 69.6 9 2.1 1447.2 A
Above 0 °C 21.5 27.7 60.4 155.9 305.5 410.5 511.7 489.8 329.4 180.2 47.6 19.9 2560.3 A
Below 0 °C 241.3 178.5 109.2 18.8 0.7 0 0 0 0.4 20.6 119.9 231.1 920.6 A
Below 5 °C 377.1 296 213.4 65.4 9.9 0.1 0 0.2 7 65 231.4 368.3 1633.7 A
Below 10 °C 529.8 433.4 359.1 171.9 57.7 6.1 0.5 3.2 43 164.6 372.7 521.2 2663.1 A
Below 15 °C 684.8 574.3 513.8 313.3 168 62.2 18.9 32.5 134.4 306.5 522.4 676.2 4,007 A
Below 18 °C 777.8 659 606.8 402.9 254.4 134.4 66.6 84.2 213.4 398.5 612.4 769.2 4979.5 A
Evaporation
1981 to 2010 Canadian Climate Normals station data
Evaporation
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Lake Evaporation (mm) 0 0 0 0 0 5.1 5 4.4 3.2 0 0 0 0
Bright Sunshine
1981 to 2010 Canadian Climate Normals station data
Bright Sunshine
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Total Hours 119.5 144.6 177.2 220.2 249.4 269.9 314.1 284.0 207.0 175.4 121.1 114.0 2396.3 C
Days with measureable 27.0 25.5 27.1 28.0 28.7 28.2 30.5 29.7 27.3 28.5 25.0 27.1 332.6 C
% of possible daylight hours 45.6 51.3 48.2 53.1 51.8 54.6 63.1 62.9 54.4 52.7 45.0 46.0 52.4 C
Extreme Daily 9.0 10.5 11.9 14.2 15.6 16.2 16.0 14.7 13.1 11.0 9.6 7.9
Date
(yyyy/dd)
1998/ 31 1968/ 28 1990/ 24 2000/ 29 1973/ 23 1973/ 26 1968/ 02 1978/ 03 1993/ 02 1989/ 03 1968/ 01 1974/ 01
Humidex
1981 to 2010 Canadian Climate Normals station data
Humidex
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Extreme Humidex 17.3 21.9 25.2 27.2 31.6 33.3 36.9 36.0 32.9 28.7 22.2 19.4
Date
(yyyy/dd)
2003/ 07 1992/ 27 2004/ 30 1977/ 24 1956/ 31 1961/ 16 2002/ 13 1971/ 02 1967/ 05 1980/ 06 1975/ 04 1999/ 27
Days with Humidex >= 30 0.0 0.0 0.0 0.0 0.1 0.5 4.0 2.7 0.5 0.0 0.0 0.0 7.8 A
Days with Humidex >= 35 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.1 0.0 0.0 0.0 0.0 0.3 A
Days with Humidex >= 40 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 A
Wind Chill
1981 to 2010 Canadian Climate Normals station data
Wind Chill
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Extreme Wind Chill -52 -53 -45 -37 -24 -6 0 -4 -12 -34 -48 -55
Date
(yyyy/dd)
1954/ 16 1989/ 01 1976/ 02 1954/ 01 1954/ 01 1969/ 11 1953/ 01 1992/ 24 1972/ 25 1984/ 31 1985/ 26 1964/ 15
Days with Wind Chill < -20 11.8 8.3 5.1 0.5 0.0 0.0 0.0 0.0 0.0 0.7 4.5 10.8 41.6 A
Days with Wind Chill < -30 6.1 2.9 1.2 0.0 0.0 0.0 0.0 0.0 0.0 0.1 1.3 4.0 15.6 A
Days with Wind Chill < -40 1.2 0.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 0.9 2.7 A
Humidity
1981 to 2010 Canadian Climate Normals station data
Humidity
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Average Vapour Pressure (kPa) 0.3 0.3 0.4 0.5 0.7 1 1.2 1.1 0.8 0.5 0.4 0.3 0.6 A
Average Relative Humidity - 0600LST (%) 66 67.7 71.2 70.2 71.9 76 78.3 79.3 75.8 69.4 69.4 65.7 71.7 A
Average Relative Humidity - 1500LST (%) 54.5 53.2 50.3 40.7 43.5 48.6 46.8 44.6 44.3 44.3 54 55.3 48.3 A
Pressure
1981 to 2010 Canadian Climate Normals station data
Pressure
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Average Station Pressure (kPa) 88.8 88.8 88.8 88.9 88.9 89 89.2 89.2 89.1 89 88.7 88.8 88.9 A
Average Sea Level Pressure (kPa) 101.7 101.8 101.6 101.5 101.4 101.4 101.5 101.6 101.7 101.6 101.6 101.7 101.6 A
Visibility (hours with)
1981 to 2010 Canadian Climate Normals station data
Visibility (hours with)
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
< 1 km 11.3 8 13.3 5.4 3.2 0.8 0.2 1.3 2 5.7 9 4.8 65 B
1 to 9 km 86.2 97.2 105.9 59.4 38.4 22.5 6.2 25.8 27.4 41.2 73.6 81.5 665.2 B
> 9 km 646.5 572.5 624.9 655.2 702.4 696.8 737.7 716.9 690.6 697.1 637.4 657.7 8035.6 B
Cloud Amount (hours with)
1981 to 2010 Canadian Climate Normals station data
Cloud Amount (hours with)
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
0 to 2 tenths 195.7 175.5 161.4 149.1 143.3 145.9 235.3 234.7 230.2 210.8 187.9 202.6 2272.3 B
3 to 7 tenths 157 141.2 170.4 178.8 191.3 204.2 221.7 200.4 166.5 169.4 156.3 165.5 2122.8 B
8 to 10 tenths 391.3 361.1 412.1 392.1 409.4 369.9 287 308.9 323.3 363.8 375.8 375.9 4370.6 B
Frost-Free
1981 to 2010 Canadian Climate Normals station data (Frost-Free)
Frost-FreeCode
Average Date of Last Spring Frost May 21 LegendAA
Average Date of First Fall Frost September 16 LegendAA
Average Length of Frost-Free Period 117 Days LegendAA
Probability of last temperature in spring of 0 °C or lower on or after indicated dates 10% 25% 33% 50% 66% 75% 90%
DateJun 11Jun 06Jun 01May 26May 21May 19May 11
Probability of first temperature in fall of 0 °C or lower on or after indicated dates 10% 25% 33% 50% 66% 75% 90%
DateAug 27Sep 03Sep 06Sep 10Sep 15Sep 19Sep 26
Probability of frost-free period equal to or less than indicated period (Days) 10% 25% 33% 50% 66% 75% 90%
Days809397105114118131
Legend
  • A = WMO "3 and 5 rule" (i.e. no more than 3 consecutive and no more than 5 total missing for either temperature or precipitation)
  • B = At least 25 years
  • C = At least 20 years
  • D = At least 15 years