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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.

COMOX A *
BRITISH COLUMBIA
Latitude: 49°43'00.000" N Longitude: 124°54'00.000" W Elevation: 25.60 m
Climate ID: 1021830 WMO ID: 71893 TC ID: YQQ
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)3 4.2 5.8 8.6 12.1 15 17.6 17.6 14.2 9.3 5.5 3.4 9.7 A
Standard Deviation1.7 1.4 1 1 1.1 1.1 1.1 1.1 1.1 0.7 1.5 1.6 0.6 A
Daily Maximum (°C)5.6 7.2 9.5 12.8 16.5 19.4 22.4 22.5 18.8 12.9 8.4 5.9 13.5 A
Daily Minimum (°C)0.4 1.1 2.2 4.3 7.6 10.6 12.7 12.7 9.5 5.6 2.6 0.8 5.8 A
Extreme Maximum (°C)16.7 16.3 18.9 26.8 31.7 34.4 34.4 33.6 30.6 22.9 17.8 16    
Date (yyyy/dd)1968/20 1986/27 1965/11 1998/30 1983/29 1969/09 1961/11 1981/08 1949/05 1992/01 1944/04 1980/25  
Extreme Minimum (°C)-21.1 -16.1 -13.9 -4.4 -2.8 0.5 5 3.3 -1.7 -4.8 -13.3 -15    
Date (yyyy/dd)1950/31 1949/05 1951/10 1948/01 1954/01 1988/05 1952/06 1997/29 1972/27 1984/31 1985/27 1968/28  
Precipitation:
Rainfall (mm)142.9 121 99.8 61 46.6 44.2 29.7 34.8 45 120.4 194.2 160.7 1100.3 A
Snowfall (cm)22.8 10.6 10.6 0.6 0 0 0 0 0 0.2 8 21.2 74 A
Precipitation (mm)168.7 132.3 110.9 61.6 46.6 44.2 29.7 34.8 45 120.7 203.4 181.1 1179 A
Average Snow Depth (cm)2 1 0 0 0 0 0 0 0 0 0 1 0 A
Median Snow Depth (cm)1 0 0 0 0 0 0 0 0 0 0 0 0 A
Snow Depth at Month-end (cm)1 1 0 0 0 0 0 0 0 0 1 4 1 A
Extreme Daily Rainfall (mm)77 80.2 66.8 40.9 29.2 39.4 37.3 69.1 42.2 59.4 78.8 113    
Date (yyyy/dd)1968/18 1983/11 1997/17 1950/11 1973/23 1992/29 1974/16 1957/11 1973/20 1956/19 1998/24 1957/22  
Extreme Daily Snowfall (cm)60.2 27.7 66.2 15.2 0.3 0 0 0 0 3.3 35.8 59.7    
Date (yyyy/dd)1978/04 1975/12 1996/03 1962/27 1974/14 1945/01 1944/01 1944/01 1944/01 1975/29 1984/01 1967/21  
Extreme Daily Precipitation (mm)77 80.2 66.8 46.5 29.2 39.4 37.3 69.1 42.2 65.5 78.8 113    
Date (yyyy/dd)1968/18 1983/11 1997/17 1962/27 1973/23 1992/29 1974/16 1957/11 1973/20 1975/29 1998/24 1957/22  
Extreme Snow Depth (cm)63 46 37 0 0 0 0 0 0 0 21 71    
Date (yyyy/dd)1978/05 1975/13 1996/04 1955/01 1955/01 1955/01 1955/01 1955/01 1955/01 1955/01 1977/24 1964/31  
Days with Maximum Temperature:
<= 0 °C1.5 0.23 0 0 0 0 0 0 0 0 0.60 1.8 4.1 A
> 0 °C29.5 28 31 30 31 30 31 31 30 31 29.4 29.2 361.2 A
> 10 °C1.9 3.7 12 24.5 30.7 30 31 31 29.9 27 7.2 2.2 231 A
> 20 °C0 0 0 0.77 4.9 10.7 22.1 22.6 9.5 0.30 0 0 70.9 A
> 30 °C0 0 0 0 0.07 0.30 0.93 1 0 0 0 0 2.3 A
> 35 °C0 0 0 0 0 0 0 0 0 0 0 0 0 A
Days with Minimum Temperature:
> 0 °C17.1 17.3 22.7 27.7 31 30 31 31 30 29.6 22.9 17.3 307.6 A
<= 2 °C21.3 16.9 15.5 7.2 0.67 0.03 0 0 0.07 4.4 13.1 19.7 99 A
<= 0 °C13.9 11 8.3 2.3 0 0 0 0 0.03 1.4 7.1 13.7 57.7 A
< -2 °C6.9 4.5 2.1 0.10 0 0 0 0 0 0.27 2.4 5.8 22.1 A
< -10 °C0.20 0.10 0 0 0 0 0 0 0 0 0.21 0.10 0.61 A
< -20 °C0 0 0 0 0 0 0 0 0 0 0 0 0 A
< - 30 °C0 0 0 0 0 0 0 0 0 0 0 0 0 A
Days with Rainfall:
>= 0.2 mm17 15.7 15.9 13.9 12.6 11.6 8.4 7.7 9.3 15.5 19.7 18.6 166 A
>= 5 mm8.8 6.8 6.3 4.5 3.2 2.8 1.8 2.1 3 6.9 10.3 9.4 66.1 A
>= 10 mm5.2 3.9 3.4 1.6 1.2 1 0.70 1.1 1.3 4.1 6.7 5.3 35.6 A
>= 25 mm0.97 0.97 0.70 0.10 0.07 0.13 0.03 0.10 0.13 1 1.9 1.4 7.6 A
Days With Snowfall:
>= 0.2 cm3.8 2.4 1.6 0.40 0.03 0 0 0 0 0.10 1.1 3.2 12.8 A
>= 5 cm1.4 0.80 0.57 0.03 0 0 0 0 0 0 0.52 1.3 4.7 A
>= 10 cm0.83 0.27 0.37 0 0 0 0 0 0 0 0.24 0.67 2.4 A
>= 25 cm0.10 0.03 0.10 0 0 0 0 0 0 0 0.07 0.13 0.43 A
Days with Precipitation:
>= 0.2 mm18.6 16.7 16.3 13.9 12.6 11.6 8.4 7.7 9.3 15.6 19.8 19.9 170.3 A
>= 5 mm10 7.8 6.7 4.6 3.2 2.8 1.8 2.1 3 6.9 10.6 10.5 70 A
>= 10 mm6.3 4.2 3.8 1.6 1.2 1 0.70 1.1 1.3 4.1 6.8 6.3 38.5 A
>= 25 mm1.3 1.1 0.87 0.10 0.07 0.13 0.03 0.10 0.13 1 2 1.6 8.4 A
Days with Snow Depth:
>= 1 cm5.2 2.3 1.1 0 0 0 0 0 0 0 1.2 3.4 13.2 A
>= 5 cm3.9 1.5 0.83 0 0 0 0 0 0 0 0.87 2.5 9.6 A
>= 10 cm2.7 0.73 0.47 0 0 0 0 0 0 0 0.57 1.7 6.2 A
>= 20 cm0.80 0.30 0.17 0 0 0 0 0 0 0 0.03 0.67 2 A
Wind:
Speed (km/h)12.7 13.4 13.7 12.8 12.4 12.3 11.8 10.9 9.9 11.5 13.8 14.3 12.5 A
Most Frequent DirectionSE SE SE SE SE SE NW NW W SE SE SE SE A
Maximum Hourly Speed (km/h)77 84 81 67 63 64 56 56 64 69 93 81    
Date (yyyy/dd)1964/17 1959/12 1985/23 1979/12 1976/29 1962/02 1957/28 1991/29 1957/05 1962/07 1962/29 1987/09  
Direction of Maximum Hourly SpeedSE E E SE SE SE SE SE SE SE SE SE SE  
Maximum Gust Speed (km/h)113 114 133 106 90 93 97 78 97 159 129 121    
Date (yyyy/dd)1964/17 1959/12 1985/23 1960/13 1976/29 1962/02 1963/22 1991/29 1962/28 1990/02 1962/24 1967/01  
Direction of Maximum GustSE E E E SE SE E SE E SE SE SE SE  
Days with Winds >= 52 km/h4.5 4 4.1 1.4 0.8 0.3 0.2 0.2 0.6 2.7 5.1 5.4 29.3 A
Days with Winds >= 63 km/h1.5 1.6 1.5 0.5 0.2 0 0 0 0.1 0.8 2.2 2.3 10.7 A
Degree Days:
Above 24 °C0 0 0 0 0 0 0.1 0.1 0 0 0 0 0.2 A
Above 18 °C0 0 0 0 0.4 5.7 24.5 24 1.4 0 0 0 56.1 A
Above 15 °C0 0 0 0.1 6 28.7 85.5 84.5 18 0.3 0 0 223.1 A
Above 10 °C0.1 0.2 0.5 12.9 73 151.1 235.5 235.1 126.2 21.8 1.8 0.4 858.5 A
Above 5 °C15.9 21.1 43.1 107.8 218.8 300.8 390.5 390.1 274.6 134.4 43.9 19.4 1960.3 A
Above 0 °C105.7 122.1 181.4 256.5 373.8 450.8 545.5 545.1 424.6 287.9 169.3 115.7 3578.4 A
Below 0 °C12.5 4.2 0.6 0 0 0 0 0 0 0.1 3.5 10 30.8 A
Below 5 °C77.7 44.5 17.2 1.3 0 0 0 0 0 1.6 28 68.7 239.1 A
Below 10 °C217 164.9 129.7 56.3 9.2 0.3 0 0 1.6 43.9 136 204.7 963.6 A
Below 15 °C371.9 306 284.2 193.6 97.2 27.9 5 4.4 43.4 177.4 284.2 359.4 2154.5 A
Below 18 °C464.9 390.8 377.2 283.5 184.6 94.9 37 36.9 116.8 270.2 374.2 452.4 3083.3 A
Evaporation:
Lake Evaporation (mm)0 0 0 2.5 3.5 4 4.7 3.9 2.4 1.4 0 0 0 A
Humidex:
Extreme Humidex16.2 15.8 18.3 26.2 31.6 37.3 37.4 40.3 31.8 26 18 15.5    
Date (yyyy/dd)1968/20 1986/27 1965/11 1998/30 1958/26 1958/18 1965/31 1981/07 1955/05 1992/01 1954/05 1976/15  
Days with Humidex >= 300 0 0 0 0 0.6 2.5 2.7 0.1 0 0 0 5.9 A
Days with Humidex >= 350 0 0 0 0 0 0.1 0.2 0 0 0 0 0.3 A
Days with Humidex >= 400 0 0 0 0 0 0 0 0 0 0 0 0 A
Wind Chill:
Extreme Wind Chill-18.6 -21.6 -16.1 -6.3 -2.2 1.1 3.4 4 -2.7 -9.8 -20.3 -25    
Date (yyyy/dd)1969/27 1989/01 1955/03 1976/14 1954/01 1976/13 1954/08 1973/18 1972/27 1984/31 1985/27 1968/28  
Days with Wind Chill < -200 0 0 0 0 0 0 0 0 0 0 0 0.1 A
Days with Wind Chill < -300 0 0 0 0 0 0 0 0 0 0 0 0 A
Days with Wind Chill < -400 0 0 0 0 0 0 0 0 0 0 0 0 A
Humidity:
Average Vapour Pressure (kPa)0.7 0.7 0.7 0.8 1 1.2 1.4 1.4 1.2 1 0.8 0.7 1 A
Average Relative Humidity - 0600LST (%)89.4 87.9 86.3 84.4 80.4 79.2 80.1 83.7 87.8 90.2 89.2 89 85.6 A
Average Relative Humidity - 1500LST (%)82.9 76.8 69.6 62.3 59.9 60.3 57 57.6 62.9 75.3 80.5 83 69 A
Pressure:
Average Station Pressure (kPa)101.3 101.2 101.2 101.3 101.3 101.3 101.4 101.3 101.4 101.4 101.2 101.4 101.3 A
Average Sea Level Pressure (kPa)101.6 101.5 101.5 101.6 101.6 101.6 101.7 101.6 101.7 101.7 101.5 101.7 101.6 A
Visibility (hours with):
< 1 km28.7 18 6.5 0.4 0.1 0.1 0 0.2 2.1 18.5 11.5 18.4 104.4 B
1 to 9 km88.2 59.9 31.4 10 8.2 8 3.6 7.3 17.7 73.9 53.9 69.5 431.5 B
> 9 km627.2 600.3 706.1 709.6 735.7 712 740.4 736.5 700.2 651.6 654.7 656.2 8230.4 B
Cloud Amount (hours with):
0 to 2 tenths107.2 104.8 158.4 156.6 180 153 268 295.2 275.1 175 105.8 101.9 2080.9 B
3 to 7 tenths95.3 103.3 144.5 157.3 190.4 178.4 185 175.3 160.9 137.5 103.2 98.9 1729.9 B
8 to 10 tenths541.5 470.1 441.1 406.1 373.6 388.6 291.1 273.6 284 431.5 511 543.2 4955.5 B


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Date Modified: 2013-02-04

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