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Canadian Climate Normals 1971-2000

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.

NOTE!! 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.

EDMONTON INT'L A *
ALBERTA
Latitude: 53°19'00.000" N Longitude: 113°35'00.000" W Elevation: 723.30 m
Climate ID: 3012205 WMO ID: 71123 TC ID: YEG
Normals from to  
January-June January-December+Year July-December
Temperature:Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Daily Average (°C)-13.5 -10.5 -4.5 4.3 10.4 14.1 15.9 15.1 10.1 4.3 -5.7 -11.3 2.4 A
Standard Deviation4.8 4.8 3.6 2.1 1.4 1 1 1.9 1.9 1.5 3.7 4.6 1.2 A
Daily Maximum (°C)-8 -4.7 1 10.7 17.4 20.5 22.2 21.7 16.9 10.9 -0.4 -5.9 8.5 A
Daily Minimum (°C)-19.1 -16.3 -9.9 -2.2 3.4 7.7 9.5 8.3 3.3 -2.4 -11 -16.7 -3.8 A
Extreme Maximum (°C)9.6 13.3 17.6 30.5 32.8 34.4 35 35.3 34.9 29.1 18.3 13.4    
Date (yyyy/dd)1989/26 1992/27 1992/26 1977/26 1986/26 1961/04 1961/14 1998/05 1981/17 1987/02 1975/03 1997/14  
Extreme Minimum (°C)-48.3 -43.9 -42.2 -28.3 -11.1 -6.1 0 -3.8 -9.6 -26.5 -35.6 -44.5    
Date (yyyy/dd)1972/26 1994/07 1972/01 1975/01 1968/10 1969/12 1967/25 1992/24 1983/28 1984/31 1963/20 1977/09  
Precipitation:
Rainfall (mm)1.1 0.5 1.3 13.4 45.3 87.4 95.2 70.3 45.4 12 2 1 374.8 A
Snowfall (cm)24.9 14.9 17.1 13.3 4.5 0 0 0.1 1.8 8 17.7 19.1 121.4 A
Precipitation (mm)22.7 13 16 26.3 49.9 87.4 95.2 70.3 47.1 19.8 17.7 17.3 482.7 A
Average Snow Depth (cm)19 21 16 3 0 0 0 0 0 1 5 12 6 A
Median Snow Depth (cm)19 21 16 3 0 0 0 0 0 0 5 11 6 A
Snow Depth at Month-end (cm)22 21 8 0 0 0 0 0 0 1 8 13 6 A
Extreme Daily Rainfall (mm)10.4 4 6.9 43.4 40.9 66.3 75.6 69.5 60.5 23.7 8.6 4.6    
Date (yyyy/dd)1971/07 1991/15 1972/23 1990/23 1991/13 1970/30 1990/03 1980/28 1969/04 1981/08 1971/19 1985/18  
Extreme Daily Snowfall (cm)33.6 19.1 21.1 36.2 20.6 0 0 2 8.6 31.5 15.9 16.8    
Date (yyyy/dd)1989/30 1962/03 1974/13 1991/06 1987/19 1959/01 1961/01 1992/21 1984/22 1970/25 1996/10 1979/09  
Extreme Daily Precipitation (mm)38.6 15 18.5 43.4 41.6 66.3 75.6 69.5 60.5 30.4 14.2 15.4    
Date (yyyy/dd)1989/30 1962/03 1974/13 1990/23 1987/19 1970/30 1990/03 1980/28 1969/04 1991/16 1972/30 1979/09  
Extreme Snow Depth (cm)66 66 84 71 9 0 0 0 5 32 28 48    
Date (yyyy/dd)1971/30 1971/01 1974/18 1974/01 1987/20 1961/01 1961/01 1961/01 1965/25 1984/19 1996/20 1970/19  
Days with Maximum Temperature:
<= 0 °C23.4 17.8 11.6 1.8 0 0 0 0 0.10 1.7 14.1 21.7 92.2 A
> 0 °C7.6 10.5 19.4 28.2 31 30 31 31 29.9 29.3 15.9 9.3 273.1 A
> 10 °C0 0.30 2.4 16.2 27.8 29.8 31 30.8 25.5 17.5 1.6 0.10 183 A
> 20 °C0 0 0 2.4 9.7 16.3 22.2 20.1 9.1 2.5 0 0 82.3 A
> 30 °C0 0 0 0.03 0.33 0.23 0.50 0.83 0.17 0 0 0 2.1 A
> 35 °C0 0 0 0 0 0 0 0.03 0 0 0 0 0.03 A
Days with Minimum Temperature:
> 0 °C0.17 0.20 0.87 9.1 25.1 29.9 31 30.8 24.1 9.2 0.77 0.20 161.5 A
<= 2 °C31 28.3 30.9 26.1 11.6 0.97 0.07 0.87 10.6 26.5 29.9 31 227.7 A
<= 0 °C30.8 28.1 30.1 20.9 5.9 0.13 0 0.20 5.9 21.8 29.2 30.8 203.8 A
< -2 °C30.6 27.5 26.1 13.6 1.9 0 0 0.03 2.8 16 27.6 30.2 176.5 A
< -10 °C25.3 20.4 13.1 2 0 0 0 0 0 1.5 14.3 23.2 99.8 A
< -20 °C12.8 9.7 3.8 0.20 0 0 0 0 0 0.20 3.8 9.9 40.4 A
< - 30 °C4.6 2.1 0.63 0 0 0 0 0 0 0 0.33 3 10.6 A
Days with Rainfall:
>= 0.2 mm0.80 0.63 1.3 5.2 10.8 14.2 14.4 12.6 9.6 4.9 1.5 0.90 76.8 A
>= 5 mm0.07 0 0.03 0.67 3.2 5.4 5.5 4 2.8 0.73 0.10 0 22.5 A
>= 10 mm0.03 0 0 0.27 1.2 2.7 3.1 2.1 1.3 0.23 0 0 11 A
>= 25 mm0 0 0 0.03 0.10 0.63 0.73 0.43 0.13 0 0 0 2.1 A
Days With Snowfall:
>= 0.2 cm10.9 8.5 8.5 4.1 1.2 0 0 0.03 0.80 2.5 7.8 9.9 54.2 A
>= 5 cm1.3 0.53 0.80 0.77 0.23 0 0 0 0.10 0.47 1 1 6.3 A
>= 10 cm0.27 0.07 0.20 0.27 0.17 0 0 0 0 0.23 0.17 0.10 1.5 A
>= 25 cm0.03 0 0 0.03 0 0 0 0 0 0.03 0 0 0.09 A
Days with Precipitation:
>= 0.2 mm11.1 8.3 9.1 8 11.3 14.2 14.4 12.6 9.9 6.6 8.5 10.1 124.1 A
>= 5 mm1.1 0.43 0.67 1.6 3.5 5.4 5.5 4 2.9 1.2 0.90 0.80 27.9 A
>= 10 mm0.23 0.07 0.13 0.60 1.3 2.7 3.1 2.1 1.3 0.43 0.17 0.10 12.3 A
>= 25 mm0.03 0 0 0.10 0.17 0.63 0.73 0.43 0.13 0.03 0 0 2.3 A
Days with Snow Depth:
>= 1 cm31 28.2 26.2 7 0.50 0 0 0 0.13 2.5 18.1 27.4 141 A
>= 5 cm28.8 27.1 21.9 4.8 0.10 0 0 0 0.03 1.6 12.4 23 119.8 A
>= 10 cm24.5 24.1 18.1 3 0 0 0 0 0 0.97 5.1 17.4 93.2 A
>= 20 cm12.9 11.6 9.3 2 0 0 0 0 0 0.20 1.8 5 42.9 A
Wind:
Speed (km/h)12.2 11.8 12.4 14 14.6 12.9 10.4 10 12 12.6 11.4 12.1 12.2 A
Most Frequent DirectionS S SE SE SE W W W S S S S S A
Maximum Hourly Speed (km/h)80 69 72 63 72 76 61 71 68 87 72 69    
Date (yyyy/dd)1962/05 1964/07 1965/13 1982/29 1965/16 1984/01 1972/28 1965/13 1967/22 1965/01 1962/24 1967/11  
Direction of Maximum Hourly SpeedW W NW W NW NW NW SW W NW NW W NW  
Maximum Gust Speed (km/h)105 97 100 106 113 111 111 109 113 146 126 103    
Date (yyyy/dd)1967/08 1965/19 1965/13 1982/29 1965/16 1985/19 1987/31 1997/27 1967/22 1965/01 1962/24 1967/11  
Direction of Maximum GustW N NW W NW W W S W NW NW NW NW  
Days with Winds >= 52 km/h0.8 0.4 0.5 0.9 1.2 1 0.3 0.3 0.6 0.9 0.6 0.7 8.2 A
Days with Winds >= 63 km/h0.3 0.1 0.1 0.1 0.2 0.2 0.1 0.1 0.1 0.2 0.1 0.2 1.9 A
Degree Days:
Above 24 °C0 0 0 0 0 0 0 0 0 0 0 0 0 A
Above 18 °C0 0 0 0 1.7 3.8 10.4 11.7 0.8 0 0 0 28.4 A
Above 15 °C0 0 0 0.6 9.3 24.4 49.2 45.6 6.1 0.5 0 0 135.7 A
Above 10 °C0 0 0 7.9 56.6 127.1 183.2 160.5 53.1 9.2 0 0 597.5 A
Above 5 °C0 0.1 1.8 47.9 173.1 274.3 337.9 311.6 162.2 49.5 1.7 0.1 1360 A
Above 0 °C2.4 5.4 27.3 149.5 323.6 424.3 492.9 466.6 304 151.8 16.6 3.9 2368.1 A
Below 0 °C421.6 302.1 165.3 21.3 0.2 0 0 0 0.5 20 188 354.3 1473.1 A
Below 5 °C574.2 438.2 294.7 69.7 4.6 0 0 0.1 8.7 72.6 323.1 505.4 2291.3 A
Below 10 °C729.2 579.4 448 179.7 43.2 2.8 0.3 3.9 49.6 187.3 471.4 660.3 3355.1 A
Below 15 °C884.2 720.7 603 322.4 150.8 50.1 21.3 44 152.6 333.7 621.4 815.3 4719.7 A
Below 18 °C977.2 805.5 696 411.9 236.2 119.6 75.5 103.1 237.3 426.2 711.4 908.3 5708.2 A
Bright Sunshine:
Total Hours97.1 125 171.3 232.7 271.6 276.8 303.4 275.8 190.9 162.5 98.4 83.3 2288.6 A
Days with measureable24.3 24.3 27.4 27.8 29.1 28.4 30.3 29.8 26.6 28 23.2 23.4 322.6 A
% of possible daylight hours38.5 45.2 46.7 55.5 55.3 54.6 59.6 60.2 50 49.4 37.7 35.3 49 A
Extreme Daily8.6 10.7 12.8 14 15.8 16.3 16.4 15.2 13.5 10.6 9.1 7.5   A
Date (yyyy/dd)1998/31 1974/23 1980/31 1976/29 1989/28 1980/08 1976/05 1978/02 1974/01 1983/01 1999/01 1985/01  
Humidex:
Extreme Humidex8.6 12.8 16.5 30 33.6 37.3 37 38.7 33.9 28.4 18.3 13    
Date (yyyy/dd)1996/12 1992/27 1992/26 1977/26 1986/26 1970/21 1975/06 1965/02 1967/01 1987/02 1975/03 1997/14  
Days with Humidex >= 300 0 0 0 0.3 0.5 3.4 3.4 0.3 0 0 0 7.9 A
Days with Humidex >= 350 0 0 0 0 0 0.3 0.3 0 0 0 0 0.7 A
Days with Humidex >= 400 0 0 0 0 0 0 0 0 0 0 0 0 A
Wind Chill:
Extreme Wind Chill-61.1 -53.6 -47.2 -33.7 -16.3 -7.3 -2 -5.8 -14.3 -34.9 -51.5 -57.4    
Date (yyyy/dd)1972/26 1962/28 1972/01 1975/01 1968/10 1969/13 1967/25 1992/24 1974/30 1984/31 1985/26 1964/15  
Days with Wind Chill < -2019.8 14.5 8 0.9 0 0 0 0 0 0.5 8 16.1 67.8 A
Days with Wind Chill < -3010.6 6.9 2.4 0.2 0 0 0 0 0 0.1 1.8 7.8 29.7 A
Days with Wind Chill < -404 1.6 0.2 0 0 0 0 0 0 0 0.1 2.1 8.1 A
Humidity:
Average Vapour Pressure (kPa)0.2 0.3 0.4 0.5 0.7 1.1 1.3 1.3 0.9 0.6 0.3 0.2 0.6 A
Average Relative Humidity - 0600LST (%)71.2 72.6 77.1 77.3 74.7 80.9 87.7 89.7 85.9 79.5 79.1 73.4 79.1 A
Average Relative Humidity - 1500LST (%)67 65.1 62.1 46.3 41.9 50.3 55.8 54.6 51.6 49.9 66.8 68.4 56.7 A
Pressure:
Average Station Pressure (kPa)92.9 92.9 92.8 92.9 92.8 92.8 93 93.1 93 92.9 92.8 92.9 92.9 A
Average Sea Level Pressure (kPa)101.8 101.8 101.6 101.5 101.3 101.2 101.4 101.5 101.6 101.5 101.6 101.7 101.5 A
Visibility (hours with):
< 1 km8.2 7.9 9.1 4.8 2.4 1.1 1 4 1.9 3.2 15.7 8 67.2 C
1 to 9 km91.7 85 76.9 33.8 22 17 19.1 24.9 20 26.3 80.8 87.2 584.5 C
> 9 km644.2 585.4 658.1 681.4 719.6 702 723.8 715.2 698.1 714.4 623.5 648.9 8114.5 C
Cloud Amount (hours with):
0 to 2 tenths169.2 151.2 165.8 159.9 142.3 124.4 171.6 180.6 177.2 183.6 157.7 167.9 1951.3 C
3 to 7 tenths147.1 139.8 176.2 202.8 214.9 224 241.8 237.8 183.1 178 148.2 143.8 2237.4 C
8 to 10 tenths427.7 387.2 402.1 357.3 386.9 371.5 330.6 325.6 359.7 382.4 414.2 432.3 4577.5 C


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Date Modified: 2013-02-04

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