Canadian Climate Normals 1971-2000 Station Data

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.

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.

Metadata including Station Name, Province, Latitude, Longitude, Elevation, Climate ID, WMO ID, TC ID
WINDSOR A *
ONTARIO
Latitude: 42°16'32.000" N Longitude: 82°57'20.000" W Elevation: 189.60 m
Climate ID: 6139525 WMO ID: 71538 TC ID: YQG

* This station meets WMO standards for temperature and precipitation.

1971 to 2000 Canadian Climate Normals station data
 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Temperature:
Daily Average (°C)-4.5 -3.2 2 8.2 14.9 20.1 22.7 21.6 17.4 11 4.6 -1.5 9.4 LegendAA
Standard Deviation2.9 2.7 2.1 1.6 2.1 1.3 1.1 1.2 1.3 1.7 1.7 2.7 0.8 LegendAA
Daily Maximum (°C)-0.9 0.6 6.4 13.4 20.5 25.4 27.9 26.6 22.5 15.6 8.3 1.9 14 LegendAA
Daily Minimum (°C)-8.1 -7 -2.4 3 9.3 14.7 17.4 16.6 12.3 6.2 0.9 -4.8 4.9 LegendAA
Extreme Maximum (°C)17.8 20.4 26.6 31.1 34 40.2 38.3 37.7 37.2 32.2 26.1 19.6   Legend
Extreme Minimum (°C)-29.1 -23.4 -19.4 -9.5 -2.8 2.8 5.6 5.2 -1.1 -5 -15.6 -23.4   Legend
Precipitation:
Rainfall (mm)28.7 33.3 55.6 80.7 80.7 89.8 81.8 79.7 96.2 64.1 67.3 47.3 805.2 LegendAA
Snowfall (cm)35 27.5 20.6 4.3 0 0 0 0 0 0.7 8.3 30.1 126.6 LegendAA
Precipitation (mm)57.6 57.3 75 85.1 80.8 89.8 81.8 79.7 96.2 64.9 75.5 74.7 918.3 LegendAA
Average Snow Depth (cm)5 4 1 0 0 0 0 0 0 0 0 3 1 LegendAA
Median Snow Depth (cm)5 3 0 0 0 0 0 0 0 0 0 1 1 LegendAA
Snow Depth at Month-end (cm)4 3 0 0 0 0 0 0 0 0 0 4 1 LegendAA
Extreme Daily Rainfall (mm)43 70.6 39.6 94.6 54.9 78 82 79.4 89 71.6 48.4 72.6   Legend
Extreme Daily Snowfall (cm)28.2 36.8 22.4 14.2 0.5 0 0 0 0 13.8 34.8 32.3   Legend
Extreme Daily Precipitation (mm)43 70.6 39.6 94.6 54.9 78 82 79.4 89 71.6 51.1 72.6   Legend
Extreme Snow Depth (cm)36 42 30 14 0 0 0 0 0 0 15 33   Legend
Days with Maximum Temperature:
<= 0 °C16.3 13.5 4.6 0.17 0 0 0 0 0 0 1.2 10.3 46.1 LegendAA
> 0 °C14.7 14.8 26.4 29.8 31 30 31 31 30 31 28.8 20.7 319.1 LegendAA
> 10 °C1.1 1.8 8.2 20.3 30.1 30 31 31 30 26.5 11 2.4 223.4 LegendAA
> 20 °C0 0.03 1 4.6 15.8 26.4 30.6 30.1 20.7 6.1 0.63 0 135.9 LegendAA
> 30 °C0 0 0 0.07 1.6 4.6 8.1 4.8 1.6 0 0 0 20.7 LegendAA
> 35 °C0 0 0 0 0 0.23 0.60 0.17 0.03 0 0 0 1 LegendAA
Days with Minimum Temperature:
> 0 °C2.4 3.7 9.5 22.7 30.9 30 31 31 29.9 29.1 16.6 5.6 242.5 LegendAA
<= 2 °C30.1 27.2 26.2 12.8 0.77 0 0 0 0.13 5 18.9 29 150.1 LegendAA
<= 0 °C28.6 24.6 21.5 7.3 0.10 0 0 0 0.07 1.9 13.4 25.4 122.8 LegendAA
< -2 °C25.4 20.9 15.8 3.3 0 0 0 0 0 0.47 7.7 19.9 93.4 LegendAA
< -10 °C11.7 9 2.2 0 0 0 0 0 0 0 0.07 5.7 28.7 LegendAA
< -20 °C0.83 0.47 0 0 0 0 0 0 0 0 0 0.30 1.6 LegendAA
< - 30 °C0 0 0 0 0 0 0 0 0 0 0 0 0 LegendAA
Days with Rainfall:
>= 0.2 mm5.7 5.6 9.4 12.2 11.8 11 10.2 10 10.9 10.5 10.6 7.9 115.7 LegendAA
>= 5 mm1.7 2 4 5 4.9 5.6 4.8 4.4 5 3.9 4.2 3.2 48.8 LegendAA
>= 10 mm1 1 1.9 2.9 2.7 3.4 2.8 2.7 3.3 2.2 2.3 1.5 27.7 LegendAA
>= 25 mm0.13 0.23 0.20 0.37 0.60 0.83 0.60 0.63 1.1 0.40 0.40 0.20 5.7 LegendAA
Days With Snowfall:
>= 0.2 cm12.5 9.1 6.7 2.3 0.03 0 0 0 0 0.33 3.8 10.2 45 LegendAA
>= 5 cm2.2 1.8 1.3 0.23 0 0 0 0 0 0.03 0.53 1.9 8.1 LegendAA
>= 10 cm0.57 0.53 0.47 0.07 0 0 0 0 0 0.03 0.10 0.53 2.3 LegendAA
>= 25 cm0.03 0.03 0 0 0 0 0 0 0 0 0 0.03 0.09 LegendAA
Days with Precipitation:
>= 0.2 mm15.1 12.3 13.9 13.3 11.8 11 10.2 10 10.9 10.5 12.8 14.9 146.7 LegendAA
>= 5 mm3.7 3.3 5.2 5.4 4.9 5.6 4.8 4.4 5 3.9 4.8 4.9 55.9 LegendAA
>= 10 mm1.5 1.7 2.4 3 2.7 3.4 2.8 2.7 3.3 2.2 2.6 2.2 30.5 LegendAA
>= 25 mm0.20 0.33 0.23 0.40 0.60 0.83 0.60 0.63 1.1 0.43 0.40 0.30 6.1 LegendAA
Days with Snow Depth:
>= 1 cm19.3 15 6.6 0.80 0 0 0 0 0 0 1.5 10.6 53.9 LegendAA
>= 5 cm13.2 9.3 3.4 0.23 0 0 0 0 0 0 0.63 6.1 32.8 LegendAA
>= 10 cm7 4.8 1.7 0.10 0 0 0 0 0 0 0.17 3.3 17.1 LegendAA
>= 20 cm1.4 1.5 0 0 0 0 0 0 0 0 0 0.73 3.6 LegendAA
Wind:
Speed (km/h)19.3 18.1 18.8 18 15.6 14.2 12.6 11.6 13 15.3 17.4 17.5 16 LegendAA
Most Frequent DirectionSW S S S S S S S S S SW SW S LegendAA
Maximum Hourly Speed (km/h)72 77 92 80 76 59 74 64 85 72 76 79   Legend
Maximum Gust Speed (km/h)109 113 148 134 107 124 145 109 113 102 121 113   Legend
Direction of Maximum GustW W S S SW NW S SW NW N SW SW S Legend
Days with Winds >= 52 km/h1.9 1.4 2.5 1.8 1.1 0.9 0.7 0.3 0.4 0.5 1.2 1.2 14 LegendAA
Days with Winds >= 63 km/h0.6 0.4 0.7 0.7 0.5 0.3 0.4 0.2 0.1 0.2 0.3 0.3 4.7 LegendAA
Degree Days:
Above 24 °C0 0 0 0 1 8.4 20.8 10.8 2.4 0 0 0 43.4 LegendAA
Above 18 °C0 0 0.2 2.6 24.7 84.1 146.5 116.7 43.6 3.2 0 0 421.7 LegendAA
Above 15 °C0 0 1.3 8.4 57.6 157.3 237.9 205 95.2 14.4 0.7 0.1 777.7 LegendAA
Above 10 °C0.1 0.1 7.9 38 160.4 301.8 392.9 359.6 224.3 70.5 11.3 1.5 1568.4 LegendAA
Above 5 °C2.6 3.8 32.9 118.7 307 451.7 547.9 514.6 373.1 188.7 53 8.6 2602.7 LegendAA
Above 0 °C20.2 29.4 102.5 249 462 601.7 702.9 669.6 523.1 339.3 149 42.7 3891.4 LegendAA
Below 0 °C159.8 119.8 40.1 2.3 0 0 0 0 0 0 10.2 87.6 419.7 LegendAA
Below 5 °C297.1 235.5 125.5 22 0 0 0 0 0 4.4 64.3 208.6 957.3 LegendAA
Below 10 °C449.6 373.1 255.5 91.3 8.5 0.1 0 0 1.2 41.2 172.5 356.4 1749.4 LegendAA
Below 15 °C604.5 514.3 403.9 211.7 60.6 5.6 0 0.3 22.1 140.1 312 510 2785.1 LegendAA
Below 18 °C697.5 599.1 495.8 295.9 120.8 22.4 1.6 5.1 60.5 221.9 401.3 602.9 3524.8 LegendAA
Humidex:
Extreme Humidex18.1 22.3 29.9 35.7 42.3 52.1 50.9 47.3 46.9 36.3 27.5 24.1   Legend
Days with Humidex >= 300 0 0 0.5 4.7 13.2 21.1 18.7 8.4 0.8 0 0 67.4 LegendAA
Days with Humidex >= 350 0 0 0 1.3 5.3 10.5 8.1 2.7 0.1 0 0 28.1 LegendAA
Days with Humidex >= 400 0 0 0 0 1 2.9 2.1 0.5 0 0 0 6.4 LegendAA
Wind Chill:
Extreme Wind Chill-42.4 -36 -27.5 -18 -7.5 1.2 7 3.8 -1.4 -11 -25.2 -35.3   Legend
Days with Wind Chill < -207.5 5.2 1 0 0 0 0 0 0 0 0.1 3.2 17 LegendAA
Days with Wind Chill < -301.1 0.5 0 0 0 0 0 0 0 0 0 0.2 1.8 LegendAA
Days with Wind Chill < -400.1 0 0 0 0 0 0 0 0 0 0 0 0.1 LegendAA
Humidity:
Average Vapour Pressure (kPa)0.4 0.4 0.5 0.7 1.1 1.6 1.9 1.9 1.5 1 0.7 0.5 1 LegendAA
Average Relative Humidity - 0600LST (%)80.1 79.4 78.8 77.4 78.4 80.6 83 86.8 85.9 82.3 81.4 81.4 81.3 LegendAA
Average Relative Humidity - 1500LST (%)70.1 66.8 61.1 54.1 51.3 53.4 53.8 57.4 57 58.1 66.5 72.1 60.1 LegendAA
Pressure:
Average Station Pressure (kPa)99.4 99.5 99.3 99.2 99.2 99.2 99.3 99.4 99.5 99.5 99.4 99.5 99.4 LegendAA
Average Sea Level Pressure (kPa)101.8 101.8 101.6 101.5 101.5 101.4 101.5 101.7 101.7 101.8 101.7 101.8 101.7 LegendAA
Visibility (hours with):
< 1 km16 18.2 17.4 5.4 4.2 3 2.2 4.8 7.3 11.5 8.3 22.1 120.4 LegendCC
1 to 9 km196.2 176.1 146.5 91.6 112.5 124.2 147.4 185.2 141.6 111.9 140.4 175.9 1749.4 LegendCC
> 9 km531.8 484.5 580.2 623 627.4 592.8 594.4 554 571.2 620.6 571.3 546 6896.9 LegendCC
Cloud Amount (hours with):
0 to 2 tenths136.3 139.5 181 183.4 220.7 207.6 240.1 240.2 233.7 226.9 140.1 127.2 2276.7 LegendCC
3 to 7 tenths102.4 103.2 122.9 127.4 152.7 200.9 223.5 198.9 172.4 142.2 106.5 92.9 1745.9 LegendCC
8 to 10 tenths505.3 436.1 440.1 409.2 370.6 311.4 280.4 305 313.8 374.9 473.3 524 4744.1 LegendCC
Legend
  • A = WMO "3 and 5 rule" (i.e. no more than 3 consecutive and no more than 5 total missing for either temperature or precipitation)
  • B = At least 25 years
  • C = At least 20 years
  • D = At least 15 years