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
DELHI CDA *
ONTARIO
Latitude: 42°52'00.000" N Longitude: 80°33'00.000" W Elevation: 231.60 m
Climate ID: 6131982 WMO ID: TC ID:

* 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)-5.7 -5.3 0 6.6 13.2 18.4 20.9 20 15.6 9.4 3.5 -2.5 7.8 LegendAA
Standard Deviation2.8 2.6 2.1 1.6 1.9 1.3 0.9 1.2 1 1.7 1.6 2.5 1.3 LegendAA
Daily Maximum (°C)-2.1 -1.3 4.4 11.9 19.3 24.4 27 25.7 20.9 14.2 7.2 1 12.7 LegendAA
Daily Minimum (°C)-9.4 -9.4 -4.3 1.2 7.1 12.3 14.8 14.2 10.2 4.5 -0.2 -5.9 2.9 LegendAA
Extreme Maximum (°C)18.3 16 25 29.5 33 36.7 40.6 36.7 36.1 31.7 25 19.5   Legend
Extreme Minimum (°C)-33.9 -30 -25 -15 -6.1 -1.7 3.3 -0.6 -3.9 -9.4 -18.9 -28   Legend
Precipitation:
Rainfall (mm)36.8 30 62.3 79.7 83.6 83.2 86.1 85.8 98.1 83.5 91.1 57.6 877.6 LegendAA
Snowfall (cm)33.3 29.7 20.9 5.6 0.1 0 0 0 0 0.5 9 33.7 132.7 LegendAA
Precipitation (mm)70.1 59.2 83.1 85.3 83.6 83.2 86.1 85.8 98.1 83.9 100.1 91.3 1009.8 LegendAA
Average Snow Depth (cm)9 11 3 0 0 0 0 0 0 0 0 4 2 LegendDD
Median Snow Depth (cm)9 10 1 0 0 0 0 0 0 0 0 2 2 LegendDD
Snow Depth at Month-end (cm)11 8 1 0 0 0 0 0 0 0 1 6 2 LegendCC
Extreme Daily Rainfall (mm)48.2 61 53.6 81.5 70 94.5 138.8 78.5 73.9 84.6 56.2 55.9   Legend
Extreme Daily Snowfall (cm)25 23 29 17 1.3 0 0 0 0.3 12.7 25.4 28.7   Legend
Extreme Daily Precipitation (mm)48.2 61 53.6 81.5 70 94.5 138.8 78.5 73.9 84.6 56.2 55.9   Legend
Extreme Snow Depth (cm)51 55 43 24 1 0 0 0 0 13 20 45   Legend
Days with Maximum Temperature:
<= 0 °C19.3 16.5 7.9 0.96 0 0 0 0 0 0 2.7 12.2 59.6 LegendAA
> 0 °C11.7 11.8 23.1 29 31 30 31 31 30 31 27.3 18.8 305.7 LegendAA
> 10 °C0.56 0.74 5.4 17.5 29.3 30 31 31 30 23.3 8.9 1.8 209.4 LegendAA
> 20 °C0 0 0.44 3.2 13.1 25 30.4 29.2 16.7 4 0.15 0 122 LegendAA
> 30 °C0 0 0 0 0.59 2.6 4.7 2.1 0.27 0 0 0 10.3 LegendAA
> 35 °C0 0 0 0 0 0.15 0.23 0.04 0 0 0 0 0.42 LegendAA
Days with Minimum Temperature:
> 0 °C1.7 2 5.7 16.4 28.1 30 31 31 29.4 24.6 12.7 4.2 216.6 LegendAA
<= 2 °C30.5 27.6 27.9 18.3 6 0.23 0 0.12 2.1 11 21.7 29.3 174.7 LegendAA
<= 0 °C29.3 26.3 25.3 13.6 2.9 0.04 0 0.04 0.65 6.4 17.4 26.8 148.7 LegendAA
< -2 °C26.2 22.6 18.4 7 0.44 0 0 0 0.08 2.6 10 21.2 108.6 LegendAA
< -10 °C13.6 12.7 4.9 0.30 0 0 0 0 0 0 0.50 7.3 39.3 LegendAA
< -20 °C1.9 2.2 0.44 0 0 0 0 0 0 0 0 0.46 4.9 LegendAA
< - 30 °C0.04 0 0 0 0 0 0 0 0 0 0 0 0.04 LegendAA
Days with Rainfall:
>= 0.2 mm4.6 4.2 8.4 11.9 11.9 10.4 10.5 9.4 11.3 11.6 11.6 7.5 113.2 LegendAA
>= 5 mm2.1 2 4.6 5.3 5 5.2 4.7 5 5.2 5.3 5.8 4.2 54.2 LegendAA
>= 10 mm1.3 1.2 2.2 2.9 2.6 2.9 2.6 3 3.8 3.1 3.1 2 30.5 LegendAA
>= 25 mm0.23 0.12 0.23 0.41 0.56 0.85 0.69 0.69 1 0.54 0.50 0.31 6.1 LegendAA
Days With Snowfall:
>= 0.2 cm10.5 9 5.2 1.4 0.04 0 0 0 0 0.12 2.4 8.3 37 LegendAA
>= 5 cm2.2 2.1 1.4 0.37 0 0 0 0 0 0.04 0.56 2.4 9 LegendAA
>= 10 cm0.46 0.62 0.42 0.11 0 0 0 0 0 0 0.20 0.84 2.7 LegendAA
>= 25 cm0.04 0 0.04 0 0 0 0 0 0 0 0 0.04 0.12 LegendAA
Days with Precipitation:
>= 0.2 mm14.4 12.4 12.6 13 11.9 10.4 10.5 9.4 11.3 11.6 13.8 14.6 146 LegendAA
>= 5 mm4.3 4 5.7 5.6 5 5.2 4.7 5 5.2 5.3 6.4 6.6 62.9 LegendAA
>= 10 mm1.9 1.9 2.7 3 2.6 2.9 2.6 3 3.8 3.1 3.4 2.9 33.8 LegendAA
>= 25 mm0.27 0.15 0.42 0.41 0.56 0.85 0.69 0.69 1 0.58 0.52 0.52 6.7 LegendAA
Days with Snow Depth:
>= 1 cm22.7 22.5 11.2 0.95 0.05 0 0 0 0 0.09 2.6 15.4 75.4 LegendDD
>= 5 cm17.9 18.3 6.6 0.63 0 0 0 0 0 0.09 1.3 9.5 54.3 LegendDD
>= 10 cm11.1 12.3 4.2 0.32 0 0 0 0 0 0 0.45 3.5 31.7 LegendDD
>= 20 cm3.4 5.9 1.5 0.11 0 0 0 0 0 0 0.05 0.95 11.9 LegendDD
Wind:
Speed (km/h)10.5 9.6 10.4 10.5 9 8.7 7.8 7.1 7.7 8.6 9.7 9.9 9.1 LegendCC
Most Frequent DirectionSW SW NW NW SW SW SW SW SW SW SW SW SW LegendDD
Maximum Hourly Speed (km/h)51 43 48 47 45 34 31 32 31 48 47 50   Legend
Degree Days:
Above 24 °C0 0 0 0 0.1 2.4 8.2 3.7 0.7 0 0 0 15.1 LegendAA
Above 18 °C0 0 0 1 13.1 51.2 98.7 76.5 24.4 1.2 0 0 266.2 LegendAA
Above 15 °C0 0 0.2 5.2 37.3 112.8 184.1 156.2 61.5 6.8 0.4 0.1 564.3 LegendAA
Above 10 °C0.1 0 3.1 24.9 119.3 251.9 338.6 308.4 172.8 46.9 7.2 0.5 1273.7 LegendAA
Above 5 °C1.7 1.3 19.1 86 254.7 401.5 493.6 463.3 317.8 144.1 39.3 5.7 2227.9 LegendAA
Above 0 °C13.9 15.9 69.3 204 408.9 551.5 648.6 618.3 467.8 289.6 122.4 31.3 3441.4 LegendAA
Below 0 °C191.7 166.5 68.6 6.5 0 0 0 0 0 0.2 17 107.6 558.1 LegendAA
Below 5 °C334.5 293.3 173.3 38.5 0.8 0 0 0 0 9.7 83.9 236.9 1170.9 LegendAA
Below 10 °C488 433.2 312.3 127.5 20.4 0.4 0 0 5 67.5 201.8 386.8 2043 LegendAA
Below 15 °C642.8 574.5 464.4 257.7 93.4 11.4 0.5 2.9 43.7 182.4 345 541.3 3159.9 LegendAA
Below 18 °C735.8 659.3 557.3 343.5 162.3 39.8 8.1 16.2 96.6 269.8 434.6 634.2 3957.6 LegendAA
Evaporation:
Lake Evaporation (mm)0 0 0 0 3.7 4.5 4.5 3.7 2.7 1.6 0 0 0 LegendCC
Bright Sunshine:
Total Hours84 98.6 132.3 189.3 242.5 272.1 289.1 251.1 179.1 139.2 84.3 59.6 2021.1 LegendDD
Days with measureable21.4 21.4 24.6 27 29.2 29.3 30.8 30.1 26.9 26.3 21.1 18.3 306.4 LegendDD
% of possible daylight hours28.8 33.2 35.8 47.2 53.5 59.3 62.2 58.2 47.7 40.6 28.7 21.2 43 LegendDD
Extreme Daily8.7 9.7 10 12.9 14 14.2 14.1 13.3 11.9 9.7 9 8   LegendDD
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