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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.

SANDSPIT A *
BRITISH COLUMBIA
Latitude: 53°15'14.000" N Longitude: 131°48'47.000" W Elevation: 6.40 m
Climate ID: 1057050 WMO ID: TC ID: YZP

* This station meets WMO standards for temperature and precipitation.

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)3.2 3.7 4.7 6.4 9 11.8 14.3 15 13.1 9.3 5.6 3.8 8.3 A
Standard Deviation1.9 1.8 1.1 0.9 1 1.1 0.9 0.9 0.9 0.9 1.7 1.5 0.8 A
Daily Maximum (°C)5.6 6.3 7.6 9.4 12 14.6 17 17.9 16 12.1 8.3 6.3 11.1 A
Daily Minimum (°C)0.7 1.1 1.8 3.3 6 8.9 11.5 12.1 10.2 6.4 2.9 1.3 5.5 A
Extreme Maximum (°C)12.4 13.4 13.9 18.9 21.7 25.9 27.8 26.7 24.1 20.6 16.3 13.4    
Date (yyyy/dd)1981/18 1977/19 1965/12 1958/29 1958/25 1987/29 1971/28 1952/05 1980/15 1986/04 1985/02 1980/15  
Extreme Minimum (°C)-13.9 -12.3 -12.2 -5.1 -1.1 2.2 5 1.9 -0.6 -3.1 -15.5 -12.8    
Date (yyyy/dd)1954/26 1989/01 1951/05 1996/02 1965/04 1950/04 1971/01 1992/11 1948/22 1984/30 1985/26 1970/04  
Precipitation:
Rainfall (mm)148.8 123.1 107.2 99.9 63.2 56.2 46.7 57.5 83.7 185.5 195.6 174 1341.2 A
Snowfall (cm)22.3 16 6.5 2 0 0 0 0 0 0 3.6 11.3 61.7 A
Precipitation (mm)168.7 139 113.3 102 63.2 56.2 46.6 57.5 83.7 185.5 198.2 184.5 1398.2 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)2 2 0 0 0 0 0 0 0 0 0 1 0 A
Extreme Daily Rainfall (mm)66.4 45.8 41.5 79.5 48.3 39.1 22.1 46.5 48.5 58.6 66.2 66.8    
Date (yyyy/dd)2001/09 1983/09 1983/08 1952/15 1950/16 1973/11 1957/30 1991/29 1961/04 1978/31 1984/01 1991/20  
Extreme Daily Snowfall (cm)38 27.4 19.6 8.6 1.5 0 0 0 0 2 22.9 23.4    
Date (yyyy/dd)1996/27 1972/25 1951/05 1971/19 1962/01 1949/01 1949/01 1948/01 1945/01 1984/30 1964/27 1955/19  
Extreme Daily Precipitation (mm)71.4 45.8 47.5 79.5 48.3 39.1 22.1 46.5 48.5 58.6 67 66.8    
Date (yyyy/dd)2001/09 1983/09 1946/27 1952/15 1950/16 1973/11 1957/30 1991/29 1961/04 1978/31 1984/01 1991/20  
Extreme Snow Depth (cm)81 66 30 3 0 0 0 0 0 1 28 43    
Date (yyyy/dd)1969/13 1969/06 1972/01 1968/11 1955/01 1955/01 1955/01 1955/01 1955/01 1984/29 1964/28 1971/23  
Days with Maximum Temperature:
<= 0 °C1.9 0.97 0.10 0 0 0 0 0 0 0 0.44 1.3 4.7 A
> 0 °C29.1 27.3 30.9 30 31 30 31 31 30 31 29.6 29.7 360.6 A
> 10 °C1.6 1.5 3 9.7 25.6 29.8 31 31 30 26 7 2.5 198.6 A
> 20 °C0 0 0 0 0.14 0.67 2.9 4.4 0.93 0.07 0 0 9.1 A
> 30 °C0 0 0 0 0 0 0 0 0 0 0 0 0 A
> 35 °C0 0 0 0 0 0 0 0 0 0 0 0 0 A
Days with Minimum Temperature:
> 0 °C18.4 18 23.4 27.3 30.9 30 31 31 30 30.8 25.2 21.5 317.4 A
<= 2 °C19.9 16.7 16.8 9.6 1.2 0 0 0.03 0 1.5 11 18.8 95.5 A
<= 0 °C12.6 10.3 7.6 2.7 0.07 0 0 0 0 0.21 4.8 9.6 47.9 A
< -2 °C5.9 4.1 1.8 0.28 0 0 0 0 0 0 1.6 3.8 17.4 A
< -10 °C0.10 0.14 0 0 0 0 0 0 0 0 0.07 0.10 0.41 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 mm19.6 17.6 20.1 19.6 17.7 16 14.1 13.9 16.9 22.6 23 21.3 222.3 A
>= 5 mm9.3 7.8 7.5 6.6 4.2 3.6 3.2 4 5.7 11.8 11.9 11.3 86.7 A
>= 10 mm4.9 4.5 3.6 3.1 1.3 1.2 0.90 1.4 2.3 6.3 7 6.4 42.7 A
>= 25 mm1.1 0.93 0.21 0.41 0.14 0.03 0 0.10 0.34 1.4 1.4 1.3 7.4 A
Days With Snowfall:
>= 0.2 cm5.5 4.4 2.9 1.3 0.07 0 0 0 0 0.07 1.7 2.9 18.8 A
>= 5 cm1.5 1 0.28 0.10 0 0 0 0 0 0 0.22 0.75 3.9 A
>= 10 cm0.55 0.31 0.07 0 0 0 0 0 0 0 0.04 0.21 1.2 A
>= 25 cm0.03 0.03 0 0 0 0 0 0 0 0 0 0 0.06 A
Days with Precipitation:
>= 0.2 mm22.3 19.7 20.7 19.8 17.8 16 14.1 13.8 16.9 22.6 23.7 22.8 230.2 A
>= 5 mm10.8 8.8 8 6.7 4.2 3.6 3.2 4 5.7 11.8 12.2 12.2 91.2 A
>= 10 mm5.6 4.9 3.7 3.1 1.3 1.2 0.90 1.4 2.3 6.3 7 6.8 44.5 A
>= 25 mm1.2 1 0.28 0.41 0.14 0.03 0 0.10 0.34 1.4 1.4 1.3 7.6 A
Days with Snow Depth:
>= 1 cm5.5 4.7 1.3 0.03 0 0 0 0 0 0 0.48 2.8 14.8 A
>= 5 cm4 2.9 0.82 0 0 0 0 0 0 0 0.11 1.7 9.5 A
>= 10 cm2.2 1.4 0.43 0 0 0 0 0 0 0 0 0.92 5 A
>= 20 cm0.48 0.25 0.14 0 0 0 0 0 0 0 0 0.50 1.4 A
Wind:
Speed (km/h)21.6 21.1 20 20.5 19.3 17.7 16.4 16 17.2 19.9 21.4 21.4 19.4 A
Most Frequent DirectionSE SE SE SE SE SE W W SE SE SE SE SE A
Maximum Hourly Speed (km/h)129 105 100 113 97 77 74 74 93 137 121 121    
Date (yyyy/dd)1955/03 1974/20 1981/24 1954/08 1954/30 1965/10 1993/21 1991/29 1962/27 1954/20 1954/12 1954/08  
Maximum Gust Speed (km/h)161 164 121 140 122 97 93 100 113 148 161 152    
Date (yyyy/dd)1955/03 1974/20 1970/12 1960/16 1987/29 1956/21 1982/05 1991/29 1958/24 1977/24 1959/01 1981/04  
Direction of Maximum GustSE SE SE SE E SE SE E SE E SW SE SE  
Days with Winds >= 52 km/h7.3 5.9 5.1 4.4 2.8 1.4 0.8 0.9 2.1 5.2 7.4 7.1 50.5 C
Days with Winds >= 63 km/h3.4 3 2.7 2 0.9 0.3 0.2 0.3 1 2.4 3.8 3.6 23.4 C
Degree Days:
Above 24 °C0 0 0 0 0 0 0 0 0 0 0 0 0 A
Above 18 °C0 0 0 0 0 0.2 1.3 1.9 0.2 0 0 0 3.6 A
Above 15 °C0 0 0 0 0.1 1.7 11.8 21.2 5.2 0.2 0 0 40.2 A
Above 10 °C0 0 0 0.7 11.9 56.3 131.9 154.2 94.8 18.8 1.2 0 469.8 A
Above 5 °C16.1 15.6 20.9 48.3 125.1 202.9 286.8 309.2 243 134.2 42.3 17.6 1462 A
Above 0 °C110.3 111.7 146.8 190.7 280 352.9 441.8 464.2 393 288.5 171.2 125.3 3076.4 A
Below 0 °C11.9 6 1 0 0 0 0 0 0 0 3 6.9 28.8 A
Below 5 °C72.7 51.3 30 7.5 0.2 0 0 0 0 0.7 24.1 54.2 240.7 A
Below 10 °C211.6 177.1 164.1 110 41.9 3.4 0.1 0 1.7 40.2 133 191.7 1074.9 A
Below 15 °C366.6 318.5 319.1 259.3 185.2 98.9 35 22 62.1 176.6 281.8 346.7 2471.7 A
Below 18 °C459.6 403.3 412.1 349.3 278 187.4 117.5 95.7 147.1 269.5 371.8 439.7 3530.9 A
Bright Sunshine:
Total Hours48.6 78.1 118.1 154.6 199.1 176.8 186.6 186.8 141.8 97.9 63 47 1498.1 C
Days with measureable18.9 20.8 25.7 26.6 28.7 27.2 28 28.3 25.8 24.2 20.2 18.9 293.2 C
% of possible daylight hours19.3 28.2 32.2 36.9 40.5 34.9 36.7 40.8 37.1 29.7 24.1 19.9 31.7 C
Extreme Daily7.6 9.8 11.5 14.1 15.9 17 16.5 15.2 12.9 10.6 8.3 6.6   C
Date (yyyy/dd)1972/26 1991/28 1994/28 1979/27 1982/28 1976/06 1994/04 1977/03 1993/02 1994/14 1994/01 1972/05  
Humidex:
Extreme Humidex13.8 13.4 12.8 17.8 23 28.4 30.8 30.2 27.6 24.5 17.9 15    
Date (yyyy/dd)1963/06 1977/19 1965/10 1958/29 1998/27 1987/29 1971/28 1997/13 1980/15 1986/04 1986/02 1980/14  
Days with Humidex >= 300 0 0 0 0 0 0 0 0 0 0 0 0.1 A
Days with Humidex >= 350 0 0 0 0 0 0 0 0 0 0 0 0 A
Days with Humidex >= 400 0 0 0 0 0 0 0 0 0 0 0 0 A
Wind Chill:
Extreme Wind Chill-22.9 -24.1 -22.9 -10.8 -4.2 -0.2 3.8 4 0.7 -10.7 -26 -20.8    
Date (yyyy/dd)1971/10 1989/01 1955/02 1954/03 1964/12 1973/01 1971/01 1969/19 1958/21 1984/30 1985/26 1964/15  
Days with Wind Chill < -200.2 0.1 0 0 0 0 0 0 0 0 0.1 0 0.4 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 0.9 1.1 1.3 1.4 1.2 1 0.8 0.7 1 A
Average Relative Humidity - 0600LST (%)87.5 87 86.7 86.6 84.6 84.5 84.9 85.3 86.2 87.2 86.8 86.9 86.2 A
Average Relative Humidity - 1500LST (%)83.4 80 77.1 76.7 75.3 76.7 76.3 76.2 76.3 78.5 80.9 83.7 78.4 A
Pressure:
Average Station Pressure (kPa)101 100.9 101 101.3 101.5 101.6 101.8 101.6 101.5 101.2 100.8 101 101.2 A
Average Sea Level Pressure (kPa)101 100.9 101.1 101.3 101.5 101.6 101.8 101.7 101.6 101.2 100.9 101 101.3 A
Radiation:
Extreme Global - RF1 (MJ/m2)6.5 12 18.9 26.7 30 31.6 31 27.5 20.7 13 7.2 4.1    
Date (yyyy/dd)1974/29 1978/27 1987/30 1988/30 1986/31 1976/12 1972/01 1977/03 1985/01 1985/06 1967/03 1985/01  
Visibility (hours with):
< 1 km10.8 9.5 3.8 4.6 2.2 2.7 2.5 3.7 6.2 4.7 2.7 5.5 58.9 C
1 to 9 km81.7 74 57.5 46.1 32.8 30.2 29.2 28 33.5 65.4 65.9 77.6 621.9 C
> 9 km651.4 595.6 682.7 669.4 709 687 712.4 712.3 680.3 673.9 651.4 660.9 8086.3 C
Cloud Amount (hours with):
0 to 2 tenths95.5 101.3 116.8 115.7 114.9 86.2 110.7 145 151.3 109.2 98.6 96.3 1341.5 D
3 to 7 tenths137.1 133.3 169.8 165 172.1 150.9 150.4 154.6 167 172.2 166.6 154.6 1893.5 D
8 to 10 tenths511.5 443.4 457.4 439.3 457 482.9 483 444.4 401.7 462.6 454.8 493.1 5531 D


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Date Modified: 2013-02-04

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