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Home  »  Climate Normals & Averages 1971-2000  »  Station Results

Notices:

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The Notice Inventory contains a record of all past and current Notices.

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.

WATERLOO WELLINGTON A *
ONTARIO
Latitude: 43°27'00.000" N Longitude: 80°23'00.000" W Elevation: 317.00 m
Climate ID: 6149387 WMO ID: TC ID:

* 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)-7.1 -6.4 -1.2 5.8 12.5 17.3 19.8 18.7 14.3 8.2 2.3 -3.8 6.7 A
Standard Deviation2.8 2.8 2.4 1.7 1.9 1.4 1.1 1.2 1 1.7 1.5 2.6 0.8 A
Daily Maximum (°C)-3.1 -2 3.3 11.1 18.6 23.4 25.9 24.7 20.2 13.4 6.1 -0.2 11.8 A
Daily Minimum (°C)-11 -10.7 -5.8 0.4 6.3 11.2 13.7 12.7 8.4 2.9 -1.5 -7.3 1.6 A
Extreme Maximum (°C)14.2 13.7 24.4 29.2 32 36.1 36 36.5 33.3 29.4 21.7 18.7    
Date (yyyy/dd)1995/14 2000/26 2000/08 1990/25 1987/28 1988/25 1988/07 2001/08 1973/03 1971/02 1974/01 1982/03  
Extreme Minimum (°C)-31.9 -29.2 -25.4 -16.1 -3.9 -0.6 5 1.1 -3.7 -8.3 -15.4 -27.2    
Date (yyyy/dd)1984/16 1979/18 1980/02 1972/08 1970/07 1972/11 1971/03 1982/29 1989/27 1976/27 2000/23 1980/25  
Precipitation:
Rainfall (mm)27.9 25.6 45.1 69.1 77.9 81.3 91.8 86.3 85.8 64.5 70.4 39.5 765 A
Snowfall (cm)43.5 30.6 24.1 7.8 0.3 0 0 0 0 1.2 13.7 38.5 159.5 A
Precipitation (mm)64.4 51.5 69.9 76.9 78.3 81.3 91.8 86.3 85.8 65.6 82.7 73.6 907.9 A
Average Snow Depth (cm)12 14 6 0 0 0 0 0 0 0 1 5 3 A
Median Snow Depth (cm)12 14 5 0 0 0 0 0 0 0 0 4 3 A
Snow Depth at Month-end (cm)15 11 1 0 0 0 0 0 0 0 1 8 3 A
Extreme Daily Rainfall (mm)43 47 36.8 53.4 51.8 54.2 89.8 73.7 74.4 39.2 56 36.8    
Date (yyyy/dd)1995/15 2001/09 1991/27 1992/16 1996/20 1984/17 1985/15 1975/24 1986/10 1977/08 1992/12 1990/29  
Extreme Daily Snowfall (cm)16.8 17.8 21.2 14 6 0 0 0 0 6 16.6 22.4    
Date (yyyy/dd)1992/14 1985/12 1980/08 1975/02 1984/13 1970/01 1970/01 1970/01 1970/01 1997/26 1986/20 1971/30  
Extreme Daily Precipitation (mm)43 47 53.8 53.4 51.8 54.2 89.8 73.7 74.4 39.2 56 36.8    
Date (yyyy/dd)1995/15 2001/09 1976/02 1992/16 1996/20 1984/17 1985/15 1975/24 1986/10 1977/08 1992/12 1990/29  
Extreme Snow Depth (cm)58 74 77 18 0 0 0 0 0 2 19 50    
Date (yyyy/dd)1976/24 1982/14 1982/10 1975/04 1970/01 1970/01 1970/01 1970/01 1970/01 1989/21 1986/21 2000/31  
Days with Maximum Temperature:
<= 0 °C21.5 17.2 9.9 1 0 0 0 0 0 0 3.8 15.1 68.5 A
> 0 °C9.5 11 21.1 29 31 30 31 31 30 31 26.2 15.9 296.8 A
> 10 °C0.37 0.33 4.9 16.6 29.2 29.9 31 31 29.7 22 7.1 1.3 203.4 A
> 20 °C0 0 0.28 2.7 12.4 23.3 29.6 27.9 15.2 3.8 0.14 0 115.4 A
> 30 °C0 0 0 0 0.33 1.7 3 1.5 0.37 0 0 0 6.9 A
> 35 °C0 0 0 0 0 0.03 0.17 0 0 0 0 0 0.20 A
Days with Minimum Temperature:
> 0 °C1 1.5 4.1 14.5 28.8 30 31 31 28.9 22 9.9 2.2 204.8 A
<= 2 °C30.6 28 29 20.5 6.2 0.30 0 0.07 3 14.5 24.1 30 186.3 A
<= 0 °C30 26.8 26.9 15.5 2.2 0.03 0 0 1.1 9 20.1 28.8 160.4 A
< -2 °C27.8 24.4 21.8 8.8 0.27 0 0 0 0.23 4 13.6 24 124.8 A
< -10 °C16.7 14.8 7.1 0.30 0 0 0 0 0 0 1 9.6 49.5 A
< -20 °C3.2 3 0.53 0 0 0 0 0 0 0 0 0.90 7.6 A
< - 30 °C0.10 0 0 0 0 0 0 0 0 0 0 0 0.10 A
Days with Rainfall:
>= 0.2 mm5.1 4.3 7.5 11.3 12 11.7 10.4 11 11.5 13.1 11 6.7 115.6 A
>= 5 mm1.9 1.6 3 4.2 4.9 5 5 4.5 5 4.1 4.4 2.9 46.5 A
>= 10 mm0.90 0.87 1.7 2.4 2.7 3 3.1 2.9 2.9 2.3 2.2 1.3 26.4 A
>= 25 mm0.10 0.13 0.20 0.37 0.43 0.37 0.87 0.80 0.60 0.13 0.40 0.20 4.6 A
Days With Snowfall:
>= 0.2 cm16.7 12.6 8.9 3.3 0.10 0 0 0 0 0.83 7.1 14.6 64.1 A
>= 5 cm2.4 1.8 1.6 0.47 0.03 0 0 0 0 0.03 0.70 2.4 9.4 A
>= 10 cm0.67 0.43 0.50 0.17 0 0 0 0 0 0 0.07 0.60 2.4 A
>= 25 cm0 0 0 0 0 0 0 0 0 0 0 0 0 A
Days with Precipitation:
>= 0.2 mm18.3 14.3 14.2 13.4 12 11.7 10.4 11 11.5 13.3 16.1 18.1 164.4 A
>= 5 mm4.1 3 4.4 4.7 4.9 5 5 4.5 5 4.2 5.2 4.8 54.8 A
>= 10 mm1.6 1.3 2.2 2.6 2.8 3 3.1 2.9 2.9 2.4 2.4 2.1 29.2 A
>= 25 mm0.10 0.20 0.40 0.37 0.43 0.37 0.87 0.80 0.60 0.13 0.40 0.40 5.1 A
Days with Snow Depth:
>= 1 cm26.4 24.9 17.4 2.2 0 0 0 0 0 0.13 5 20.5 96.6 A
>= 5 cm20.7 19.5 11.5 0.77 0 0 0 0 0 0 1.2 11.8 65.4 A
>= 10 cm14.3 13.7 7.6 0.17 0 0 0 0 0 0 0.27 5.4 41.4 A
>= 20 cm6.9 7.5 2.1 0 0 0 0 0 0 0 0 1.4 17.9 A
Wind:
Speed (km/h)15.4 14 14.9 14.9 12.3 10.9 9.6 8.7 9.8 11.5 14.2 14.6 12.6 A
Most Frequent DirectionSW W W W W W W W W W SW SW W A
Maximum Hourly Speed (km/h)70 67 74 72 71 52 52 45 53 63 66 61    
Date (yyyy/dd)1982/04 2002/01 2002/09 1984/30 1976/05 1998/02 2001/01 1966/09 1967/26 2001/26 1975/10 1972/13  
Maximum Gust Speed (km/h)113 102 120 98 106 89 111 98 89 96 100 96    
Date (yyyy/dd)1978/26 2001/25 1981/30 1984/30 1976/05 1998/02 1997/14 1990/27 1997/29 2001/25 1998/11 1982/28  
Direction of Maximum GustS SW S SW SW W W NW W SW SW SW S  
Days with Winds >= 52 km/h2.2 1.6 2 1.9 1 0.9 0.5 0.3 0.3 1 1.5 1.9 15.2 D
Days with Winds >= 63 km/h0.9 0.4 0.6 0.6 0.3 0.3 0.2 0 0.1 0.3 0.7 0.8 5.1 D
Degree Days:
Above 24 °C0 0 0 0 0.1 1.4 4.1 1.8 0.3 0 0 0 7.6 A
Above 18 °C0 0 0 0.8 10.5 36.7 72 52.1 15.1 0.6 0 0 187.8 A
Above 15 °C0 0 0.1 3.4 30.5 88.4 150.4 121.3 43.2 3.7 0 0 441 A
Above 10 °C0 0 2 18.3 104.9 220.6 303.9 270.9 140.1 32.3 3.8 0.3 1097.1 A
Above 5 °C0.9 0.6 13.5 70.3 235.5 369.5 458.9 425.8 280.3 114.7 27.4 3.8 2001.1 A
Above 0 °C9.4 11.1 54.1 182.3 389.2 519.5 613.9 580.8 430.1 253.7 97.1 21.5 3162.6 A
Below 0 °C228.9 191.7 94.3 9 0 0 0 0 0 0.5 26.3 137.6 688.2 A
Below 5 °C375.3 322.4 208.7 47 1.3 0 0 0 0.2 16.5 106.7 274.8 1353.1 A
Below 10 °C529.4 463.2 352.2 145 25.7 1.1 0 0.1 10 89.1 233 426.4 2275.4 A
Below 15 °C684.4 604.5 505.3 280.2 106.3 18.9 1.5 5.5 63.1 215.5 379.3 581.1 3445.6 A
Below 18 °C777.4 689.3 598.2 367.6 179.4 57.2 16.1 29.3 125 305.4 469.3 674.1 4288.3 A
Humidex:
Extreme Humidex13.4 13 28 33.7 39.6 43.2 47.7 48.3 41.2 34.5 24.4 22.1    
Date (yyyy/dd)1995/14 1997/21 1998/30 2002/16 1987/30 1988/25 1995/14 1988/02 1983/10 1971/02 1987/03 1982/03  
Wind Chill:
Extreme Wind Chill-40.5 -37.1 -30.2 -20.6 -8.1 0.4 4.7 1.4 -4.1 -11.9 -22.2 -31.2    
Date (yyyy/dd)1982/17 1979/17 1989/07 1982/04 1978/01 1972/10 1992/22 1982/29 1989/27 1969/23 1976/29 1983/26  
Humidity:
Average Relative Humidity - 0600LST (%)86.4 83.6 85.1 84.2 84.9 87.3 90.5 94 93.9 90.9 87.5 87 87.9 D


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Date Modified: 2013-02-04

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