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Notices:

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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.

LA GRANDE RIVIERE A
QUEBEC
Latitude: 53°38'00.000" N Longitude: 77°42'00.000" W Elevation: 195.10 m
Climate ID: 7093715 WMO ID: 71827 TC ID: YGL
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)-23.2 -21.6 -14.6 -4.9 4.3 10.5 13.7 12.9 7.4 1.2 -6.3 -17.1 -3.1 C
Standard Deviation3 3.4 3.2 2.6 2.1 2.1 1.4 1.6 1.7 1.6 2.3 4 1.9 C
Daily Maximum (°C)-18.3 -15.8 -8.2 0.7 10.3 17.1 20 18.4 11.6 4.4 -3.3 -13 2 C
Daily Minimum (°C)-28 -27.4 -20.9 -10.5 -1.6 3.9 7.4 7.4 3.1 -2 -9.4 -21.2 -8.3 C
Extreme Maximum (°C)1.4 5 11.3 22.3 32.6 35 32.3 31.2 26.8 23.5 12.3 12.5    
Date (yyyy/dd)1993/22 2000/26 1979/21 1980/30 1998/16 1983/21 1990/15 1996/03 1996/02 1997/09 1977/03 1986/13  
Extreme Minimum (°C)-40.9 -44.6 -38.5 -31.4 -13.5 -6.6 -0.9 -0.5 -7 -16.7 -29.2 -40.3    
Date (yyyy/dd)1982/18 1979/15 1984/12 1994/01 1981/10 1986/02 1978/01 1984/17 1978/29 1990/26 1989/25 1993/28  
Precipitation:
Rainfall (mm)0.1 1.2 3 11.5 30.2 62.3 79.5 85.1 100.8 52.5 10.2 1.2 437.4 C
Snowfall (cm)34.2 23.3 29.5 20.9 11.1 2.5 0 0.1 6.4 35.5 60.8 42.5 266.7 C
Precipitation (mm)31.8 21.8 29.3 31.5 40.3 64.8 79.5 85.2 106.9 86.5 66.3 40.1 683.9 C
Average Snow Depth (cm)43 50 47 30 3 0 0 0 0 2 16 32 19 C
Median Snow Depth (cm)43 50 47 30 2 0 0 0 0 1 16 32 18 C
Snow Depth at Month-end (cm)50 49 41 13 0 0 0 0 0 6 25 37 18 C
Extreme Daily Rainfall (mm)0.6 6.4 12.6 18 28.6 64.2 42 66.4 66.2 35.4 22 16.8    
Date (yyyy/dd)1995/18 1994/19 1991/28 1988/06 1991/11 1977/29 1986/24 2000/16 1987/13 1995/02 2001/25 1982/03  
Extreme Daily Snowfall (cm)21.2 17.4 22.4 16.9 16.5 9.4 0.2 2 12.6 25.4 25.8 17.2    
Date (yyyy/dd)1996/19 1994/19 1984/21 1982/18 1977/06 1980/09 2001/25 1986/28 1984/25 1991/21 1985/20 1982/06  
Extreme Daily Precipitation (mm)21.2 23.8 19.1 20.4 28.6 64.2 42 66.4 66.2 35.5 23.4 16.8    
Date (yyyy/dd)1996/19 1994/19 1984/21 1997/07 1991/11 1977/29 1986/24 2000/16 1987/13 1981/18 1988/27 1982/03  
Extreme Snow Depth (cm)102 110 99 88 61 4 0 1 10 38 59 61    
Date (yyyy/dd)1996/31 1996/13 1977/03 1994/12 1994/03 1989/05 1977/01 1986/28 1980/30 1992/21 1993/22 1992/31  
Days with Maximum Temperature:
<= 0 °C30.9 27.3 25.3 13.2 2.1 0.09 0 0 0 5.3 22.6 30.2 156.9 C
> 0 °C0.14 0.96 5.7 16.8 28.9 29.9 31 31 30 25.8 7.4 0.83 208.4 C
> 10 °C0 0 0.13 2 15.1 25.5 30.1 30.2 17.4 3.6 0.17 0.04 124.1 C
> 20 °C0 0 0 0.04 3.4 10 15.5 11.2 1.7 0.04 0 0 42 C
> 30 °C0 0 0 0 0.08 0.70 0.43 0.24 0 0 0 0 1.5 C
> 35 °C0 0 0 0 0 0 0 0 0 0 0 0 0 C
Days with Minimum Temperature:
> 0 °C0 0.09 0.33 2 10.2 21.8 30.8 30.8 23.5 8.3 1.3 0.04 129 C
<= 2 °C31 28.2 31 29.3 24.3 13.1 2.4 1.3 13.8 27.3 29.4 31 262.2 C
<= 0 °C31 28.1 30.7 28 20.8 8.2 0.17 0.24 6.5 22.8 28.7 31 236.2 C
< -2 °C31 28.1 30.1 26 15.3 3 0 0 2 15 27.3 30.9 208.6 C
< -10 °C30.2 27.3 26.9 15.4 1.4 0 0 0 0 0.46 13 26.6 141.1 C
< -20 °C26.3 23.7 17.8 3 0 0 0 0 0 0 1.8 16.8 89.4 C
< - 30 °C13.6 11.5 5.1 0.04 0 0 0 0 0 0 0 5.6 35.8 C
Days with Rainfall:
>= 0.2 mm0.35 0.52 1.1 3.8 8.2 11.6 14.3 16.6 18.4 12 3.9 0.76 91.4 C
>= 5 mm0 0.04 0.08 0.74 2 3.9 5.5 5.6 6 3.6 0.79 0.04 28.4 C
>= 10 mm0 0 0.04 0.22 0.83 2 2.5 2.5 3.4 1.7 0.21 0.04 13.4 C
>= 25 mm0 0 0 0 0.08 0.35 0.38 0.36 0.48 0.13 0 0 1.8 C
Days With Snowfall:
>= 0.2 cm15.9 12.2 11.1 8.2 5.1 1.6 0 0.05 2.5 13.1 20.1 18.7 108.5 C
>= 5 cm1.6 1.1 1.8 1.3 0.63 0.13 0 0 0.48 2 4 2.3 15.2 C
>= 10 cm0.39 0.13 0.33 0.30 0.13 0 0 0 0.09 0.50 0.83 0.52 3.2 C
>= 25 cm0 0 0 0 0 0 0 0 0 0.04 0.04 0 0.08 C
Days with Precipitation:
>= 0.2 mm15.8 12.3 11.5 10.3 11.9 12.4 14.5 16.5 19.4 20.9 21.7 18.8 185.9 C
>= 5 mm1.4 1 1.8 2 2.5 4.1 5.6 5.5 6.6 5.9 4.3 1.9 42.6 C
>= 10 mm0.30 0.09 0.38 0.52 0.96 2 2.6 2.4 3.7 2.4 1.2 0.40 16.9 C
>= 25 mm0 0 0 0 0.08 0.35 0.35 0.29 0.48 0.13 0 0 1.7 C
Days with Snow Depth:
>= 1 cm31 28.3 31 28.4 8.1 0.22 0 0.05 0.65 10.1 25.9 31 194.8 C
>= 5 cm31 28.3 31 26.3 4.4 0 0 0 0.30 5.1 23.1 30.7 180.1 C
>= 10 cm31 28.3 30.8 24.8 3.2 0 0 0 0.04 3.1 20.1 29.8 171.1 C
>= 20 cm30.6 27.5 28.8 19.4 1.8 0 0 0 0 0.83 9.9 25.3 144.1 C
Wind:
Speed (km/h)14.4 13.8 14.6 14.4 15 15.5 14.5 14.6 15.9 16.2 16 14.3 14.9 C
Most Frequent DirectionW W W W W W W W W S SW S W C
Maximum Hourly Speed (km/h)57 56 72 63 56 59 65 65 65 93 74 67    
Date (yyyy/dd)1978/10 2000/09 2002/11 1984/28 1987/13 1978/19 1978/18 1978/12 1992/09 1984/28 1994/22 1982/04  
Maximum Gust Speed (km/h)83 78 89 85 81 82 104 102 93 122 89 85    
Date (yyyy/dd)1990/28 1990/13 1986/23 1984/28 1987/13 1999/30 1984/23 1978/12 1989/29 1984/28 1982/21 1982/04  
Direction of Maximum GustW NW SW SE SW W W SW W W SW W W  
Days with Winds >= 52 km/h0.4 0.1 0.4 0.2 0.3 0.4 0.3 0.3 0.8 0.6 0.4 0.3 4.4 C
Days with Winds >= 63 km/h0 0 0.1 0 0.1 0.1 0.2 0.1 0.1 0.1 0.1 0 1 C
Degree Days:
Above 24 °C0 0 0 0 0 0.6 0.1 0.1 0 0 0 0 0.7 C
Above 18 °C0 0 0 0 0.5 8.8 10.4 8.9 0.2 0 0 0 28.8 C
Above 15 °C0 0 0 0 3.3 23.5 34.5 28.4 1.8 0 0 0 91.6 C
Above 10 °C0 0 0 0.4 19.2 77.6 126.2 106.7 20.9 0.7 0 0 351.6 C
Above 5 °C0 0 0.1 4.2 62.6 178.6 268.8 249.3 86.3 11.3 1 0 862.1 C
Above 0 °C0 0.3 2.2 24.3 156.5 317.9 423.6 404.1 217.5 67.2 8 0.2 1621.8 C
Below 0 °C713.8 617.3 453.2 169.6 22.2 0.4 0 0 0.6 29.2 200 527.9 2734.2 C
Below 5 °C868.8 758.4 606.1 299.4 83.3 11.1 0.1 0.2 19.5 128.3 343.1 682.7 3800.8 C
Below 10 °C1023.8 899.8 761 445.6 194.9 60.1 12.5 12.5 104 272.7 492.1 837.7 5116.7 C
Below 15 °C1178.8 1041.2 916 595.2 334 156 75.9 89.3 235 427 642.1 992.7 6683.1 C
Below 18 °C1271.8 1126 1009 685.2 424.2 231.3 144.8 162.8 323.4 520 732.1 1085.7 7716.2 C
Bright Sunshine:
Extreme Daily8.4 10 12.1 14.3 16 17.2 16.3 14.8 12.5 9.8 8.7 6.9   C
Date (yyyy/dd)2000/28 1989/27 1989/31 1977/27 1977/27 1996/19 1978/01 1981/05 1983/02 1987/03 1985/02 1987/13  
Humidex:
Extreme Humidex0.1 4.8 11.1 21.8 33.9 37.5 35 35.5 31.5 28.3 11.7 7.6    
Date (yyyy/dd)1992/04 2000/26 1979/21 1980/30 1998/16 1989/23 1990/28 1996/07 1996/02 1997/09 1977/03 1982/03  
Days with Humidex >= 300 0 0 0 0 1.2 1.5 1.3 0.1 0 0 0 4.1 C
Days with Humidex >= 350 0 0 0 0 0.3 0 0.1 0 0 0 0 0.4 C
Days with Humidex >= 400 0 0 0 0 0 0 0 0 0 0 0 0 C
Wind Chill:
Extreme Wind Chill-56 -56.9 -48.9 -40.1 -21 -12.5 -5.6 -6.5 -10.3 -18.2 -40.3 -52.9    
Date (yyyy/dd)1977/10 1979/15 1984/12 1994/01 1983/16 1982/03 1983/05 1986/28 1980/28 1981/24 1976/30 1993/28  
Days with Wind Chill < -2029.6 26.4 24.2 9.9 0.2 0 0 0 0 0 6.8 24.6 121.7 C
Days with Wind Chill < -3025.4 22.2 14.7 1.7 0 0 0 0 0 0 1.3 15 80.1 C
Days with Wind Chill < -4013.7 11.7 3.7 0 0 0 0 0 0 0 0 5.3 34.5 C
Humidity:
Average Vapour Pressure (kPa)0.1 0.1 0.2 0.3 0.6 0.8 1.1 1.1 0.9 0.6 0.4 0.2 0.5 C
Average Relative Humidity - 0600LST (%)71.9 72.1 74.7 78.3 78.6 78.6 84.2 88 90.3 89.2 87.5 79.2 81.1 C
Average Relative Humidity - 1500LST (%)73 68.6 61.2 58.2 53.5 50.5 55.2 59.9 68.7 75.3 82.9 79 65.5 C
Pressure:
Average Station Pressure (kPa)98.9 99.1 99.2 99.2 99.1 98.8 98.8 98.9 98.9 98.9 98.8 98.9 99 C
Average Sea Level Pressure (kPa)101.4 101.7 101.7 101.7 101.5 101.2 101.1 101.3 101.3 101.3 101.2 101.4 101.4 C
Visibility (hours with):
< 1 km8.1 6 6.9 12.6 19 13 26.9 24 16.5 24.2 23.7 11.4 192.2 D
1 to 9 km154.2 118.9 112.8 79.4 63.7 58.4 69.4 75.9 96.9 145.8 188.6 182.4 1346.3 D
> 9 km581.7 552 624.4 628.1 661.3 648.6 647.8 644.1 606.6 574 507.7 550.2 7226.4 D
Cloud Amount (hours with):
0 to 2 tenths237.5 257.5 269.3 221 171.2 155.4 145.3 141.4 85.5 82.5 62.7 156 1985.2 D
3 to 7 tenths148.5 139.9 140.4 126.7 143.6 178.5 191.1 169.1 125.5 98.6 86.1 117.9 1665.9 D
8 to 10 tenths358 279.5 334.4 372.3 429.2 386.1 407.7 433.5 509.1 562.8 571.2 470.2 5113.7 D


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Date Modified: 2013-02-04

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