Canadian Climate Normals 1981-2010 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
WINNIPEG RICHARDSON INT'L A *
MANITOBA
Latitude: 49°55'00.000" N Longitude: 97°14'00.000" W Elevation: 238.70 m
Climate ID: 5023222 WMO ID: 71852 TC ID: YWG

* This station meets WMO standards for temperature and precipitation.

1981 to 2010 Canadian Climate Normals station data
 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Temperature:
Daily Average (°C)-16.4 -13.2 -5.8 4.4 11.6 17 19.7 18.8 12.7 5 -4.9 -13.2 3 Legend AA
Standard Deviation4.1 4.2 3.1 2.7 2.1 2 1.4 1.9 1.3 1.8 3.6 4.4 1.2 Legend AA
Daily Maximum (°C)-11.3 -8.1 -0.8 10.9 18.6 23.2 25.9 25.4 19 10.5 -0.5 -8.5 8.7 Legend AA
Daily Minimum (°C)-21.4 -18.3 -10.7 -2 4.5 10.7 13.5 12.1 6.4 -0.5 -9.2 -17.8 -2.7 Legend AA
Extreme Maximum (°C)7.8 11.7 23.3 34.3 37 37.8 37.8 40.6 38.8 30.5 23.9 11.7   Legend
Date
(yyyy/dd)
1942/ 23 1958/ 25 1946/ 27 1980/ 21 1980/ 22 1995/ 17 1939/ 12 1949/ 07 1983/ 02 1992/ 01 1975/ 05 1939/ 06  
Extreme Minimum (°C)-42.2 -45 -37.8 -26.3 -11.1 -3.3 1.1 0 -7.2 -17.2 -34 -37.8   Legend
Date
(yyyy/dd)
1943/ 20 1966/ 18 1962/ 01 1979/ 02 1958/ 01 1964/ 03 1972/ 03 2004/ 20 1965/ 26 1941/ 30 1985/ 30 1967/ 31  
Precipitation:
Rainfall (mm)0.2 2.7 9.7 19.2 54.1 90 79.5 77 45.5 32.7 6.9 1.5 418.9 Legend AA
Snowfall (cm)23.7 12.5 16.5 10.6 2.6 0 0 0 0.3 4.8 19.9 23 113.7 Legend AA
Precipitation (mm)19.9 13.8 24.5 30 56.7 90 79.5 77 45.8 37.5 25 21.5 521.1 Legend AA
Average Snow Depth (cm)16 17 10 2 0 0 0 0 0 0 4 10 5 Legend CC
Median Snow Depth (cm)15 18 10 2 0 0 0 0 0 0 4 10 5 Legend CC
Snow Depth at Month-end (cm)18 16 4 0 0 0 0 0 0 1 7 13 5 Legend CC
Extreme Daily Rainfall (mm)3.8 20 33.6 36 60.2 69.8 83.6 83.8 65 74.4 19 21.8   Legend
Date
(yyyy/dd)
1944/ 20 2000/ 25 2004/ 27 1986/ 30 1978/ 25 1984/ 21 1993/ 25 1962/ 11 1941/ 03 1949/ 10 2000/ 06 1982/ 02  
Extreme Daily Snowfall (cm)23 23.6 35.6 22 29 0.3 0 0 5.8 24.6 27.7 21.6   Legend
Date
(yyyy/dd)
1989/ 07 1955/ 20 1966/ 04 1997/ 05 2004/ 11 1969/ 12 1938/ 01 1938/ 01 1984/ 24 1971/ 30 1958/ 17 1948/ 15  
Extreme Daily Precipitation (mm)22.5 23.6 35.6 44.1 60.2 69.8 83.6 83.8 65 74.4 27.7 21.8   Legend
Date
(yyyy/dd)
1989/ 07 1955/ 20 1966/ 04 1986/ 30 1978/ 25 1984/ 21 1993/ 25 1962/ 11 1941/ 03 1949/ 10 1958/ 17 1982/ 02  
Extreme Snow Depth (cm)91 89 85 61 18 0 0 0 2 18 55 81   Legend
Date
(yyyy/dd)
1956/ 30 1956/ 01 1956/ 09 1956/ 01 1967/ 02 1955/ 01 1955/ 01 1955/ 01 1984/ 25 1971/ 31 1955/ 23 1955/ 23  
Days with Maximum Temperature:
<= 0 °C28.5 23.2 15.5 2.3 0 0 0 0 0 1.4 15.3 26.8 113 Legend AA
> 0 °C2.5 5 15.5 27.7 31 30 31 31 30 29.6 14.7 4.2 252.2 Legend AA
> 10 °C0 0 1.6 16.2 28 30 31 31 28.3 16.3 1.9 0 184.2 Legend AA
> 20 °C0 0 0 3.7 13 22.2 29.1 27 12.4 2.2 0 0 109.7 Legend AA
> 30 °C0 0 0 0.11 1.2 2.5 4.1 4.7 0.65 0.04 0 0 13.3 Legend AA
> 35 °C0 0 0 0 0.04 0.30 0.15 0.48 0.04 0 0 0 1 Legend AA
Days with Minimum Temperature:
> 0 °C0 0.30 2.6 10.4 23.5 29.9 31 31 27.5 14.1 1.7 0.23 172.1 Legend AA
<= 2 °C31 28.2 30.7 23.6 10.7 0.78 0 0.11 5.7 21.2 29.5 31 212.6 Legend AA
<= 0 °C31 27.9 28.4 19.6 7.5 0.15 0 0.04 2.5 16.9 28.3 30.8 193.1 Legend AA
< -2 °C30.9 27.3 25.7 15 4.6 0 0 0 0.81 11 25.6 30.5 171.4 Legend AA
< -10 °C27.4 21.9 14.6 2.2 0.04 0 0 0 0 0.93 11.8 23.5 102.2 Legend AA
< -20 °C17.9 12.8 5.2 0.11 0 0 0 0 0 0 2.6 13.3 52 Legend AA
< - 30 °C5.9 3.3 0.52 0 0 0 0 0 0 0 0.19 2.7 12.6 Legend AA
Days with Rainfall:
>= 0.2 mm0.67 0.93 2.9 5.1 11.3 13.3 11.4 10.7 10.3 7.9 3 0.84 78.3 Legend AA
>= 5 mm0 0.15 0.67 1.2 3.5 5.1 4.3 3.8 2.7 1.8 0.48 0.04 23.7 Legend AA
>= 10 mm0 0.11 0.22 0.48 1.6 2.7 2.6 2 1.6 1.1 0.15 0.04 12.6 Legend AA
>= 25 mm0 0 0.07 0.04 0.30 0.78 0.63 0.81 0.19 0.15 0 0 3 Legend AA
Days With Snowfall:
>= 0.2 cm12.4 7.7 7.4 2.9 0.56 0 0 0 0.11 2.3 8.6 11.5 53.5 Legend AA
>= 5 cm1.2 0.56 0.89 0.74 0.15 0 0 0 0.04 0.23 1.1 1.2 6.1 Legend AA
>= 10 cm0.23 0.11 0.33 0.33 0.07 0 0 0 0 0.12 0.41 0.35 2 Legend AA
>= 25 cm0 0 0 0 0.04 0 0 0 0 0 0.04 0 0.08 Legend AA
Days with Precipitation:
>= 0.2 mm12.2 8 9.2 7.2 11.5 13.3 11.4 10.7 10.4 9.4 10.3 11.8 125.3 Legend AA
>= 5 mm0.73 0.52 1.5 1.9 3.7 5.1 4.3 3.8 2.7 2.1 1.4 1 28.7 Legend AA
>= 10 mm0.12 0.19 0.63 0.85 1.7 2.7 2.6 2 1.6 1.2 0.56 0.35 14.5 Legend AA
>= 25 mm0 0 0.07 0.11 0.33 0.78 0.63 0.81 0.19 0.15 0 0 3.1 Legend AA
Days with Snow Depth:
>= 1 cm31 27.4 21.9 3.8 0.23 0 0 0 0.04 1.2 15.3 27 127.8 Legend CC
>= 5 cm26.9 25.6 15.6 2.5 0.04 0 0 0 0 0.42 9.3 20.4 100.7 Legend CC
>= 10 cm22.1 20.8 12 2 0 0 0 0 0 0.08 4.3 12.6 73.7 Legend CC
>= 20 cm7 9.9 6.1 1.4 0 0 0 0 0 0 2 3.5 29.8 Legend CC
Wind:
Speed (km/h)17.4 16.9 18 18.5 18.4 16.3 14.6 15.4 16.9 18 17.9 17.4 17.1 Legend AA
Most Frequent DirectionS S S S S S S S S S S S S Legend AA
Maximum Hourly Speed (km/h)80 80 81 80 72 80 89 74 71 77 87 78   Legend
Date
(yyyy/dd)
2009/ 31 1960/ 08 1982/ 13 1959/ 07 1955/ 03 1954/ 07 1959/ 27 1982/ 15 1953/ 09 1962/ 16 1999/ 01 1995/ 05  
Direction of Maximum Hourly SpeedNW NW W NW S S SE E N NW NW W SE Legend
Maximum Gust Speed (km/h)106 129 113 106 109 127 127 122 98 119 124 98   Legend
Date
(yyyy/dd)
1982/ 26 1965/ 20 1966/ 04 1963/ 03 1959/ 11 1967/ 29 1959/ 14 1973/ 18 1959/ 09 1991/ 17 1960/ 21 1991/ 01  
Direction of Maximum GustSE NW N N NW W S NW NW W W W NW Legend
Degree Days:
Above 24 °C0 0 0 0 0.5 2.8 3.4 4 0.5 0 0 0 11.1 Legend AA
Above 18 °C0 0 0 0.4 10.6 37.4 70.7 60.9 9.5 0.1 0 0 189.6 Legend AA
Above 15 °C0 0 0 2.9 28.3 85.9 146.8 127.1 29.2 1.3 0 0 421.5 Legend AA
Above 10 °C0 0 0 18.8 97.3 211.7 298.6 271.8 105.8 13.7 0.1 0 1017.7 Legend AA
Above 5 °C0 0 1.7 66.3 212.9 359.4 453.6 426.5 233.3 64 3 0 1820.7 Legend AA
Above 0 °C0.3 2.1 23 160.1 359.1 509.4 608.6 581.5 381.1 171.3 23.2 1.1 2820.6 Legend AA
Below 0 °C508.4 374.2 202.1 27.2 0.5 0 0 0 0 15.1 168.8 408.8 1705.1 Legend AA
Below 5 °C663.1 513.2 335.8 83.5 9.4 0 0 0 2.2 62.8 298.6 562.7 2531.3 Legend AA
Below 10 °C818.1 654.3 489.1 186 48.7 2.3 0 0.3 24.7 167.5 445.7 717.7 3554.4 Legend AA
Below 15 °C973.1 795.4 644.1 320 134.8 26.6 3.3 10.6 98.1 310.2 595.6 872.7 4784.3 Legend AA
Below 18 °C1066.1 880 737.1 407.5 210.1 68 20.1 37.3 168.4 402 685.6 965.7 5648.1 Legend AA
Evaporation:
Lake Evaporation (mm)0 0 0 0 4.7 4.9 4.7 4.5 2.9 1.4 0 0 0 Legend
Bright Sunshine:
Extreme Daily9 11.7 12.4 14.1 15.4 16 15.7 14.6 12.9 10.7 9.4 8   Legend
Date
(yyyy/dd)
1993/ 28 1986/ 22 1994/ 29 1978/ 30 1967/ 31 1979/ 16 1972/ 17 1969/ 01 1966/ 01 1957/ 03 1963/ 01 1978/ 06  
Humidex:
Extreme Humidex6.3 11.1 18.8 34.1 40.2 46.1 47.3 45.5 45.9 34.3 23.9 9.3   Legend
Date
(yyyy/dd)
1986/ 11 1958/ 25 1967/ 30 1980/ 21 1988/ 31 1996/ 27 2007/ 25 2001/ 04 1983/ 02 1961/ 06 1975/ 05 1982/ 02  
Days with Humidex >= 300 0 0 0.2 1.6 6.6 13.9 12.1 2.7 0 0 0 37.1 Legend AA
Days with Humidex >= 350 0 0 0 0.3 2.1 5.2 4.2 0.5 0 0 0 12.3 Legend AA
Days with Humidex >= 400 0 0 0 0 0.5 1 0.7 0 0 0 0 2.2 Legend AA
Wind Chill:
Extreme Wind Chill-56.4 -57.1 -48.8 -35.8 -20.8 -7.9 0 0 -11.5 -24.2 -48.1 -50.6   Legend
Date
(yyyy/dd)
1966/ 28 1996/ 01 1962/ 01 1954/ 02 1967/ 02 2009/ 06 1953/ 01 1953/ 01 1965/ 26 1991/ 30 1958/ 29 1989/ 20  
Days with Wind Chill < -2024.8 19.3 11.1 0.9 0 0 0 0 0 0.2 7.9 20.9 85.1 Legend AA
Days with Wind Chill < -3016.3 11.1 3.6 0 0 0 0 0 0 0 1.6 11.3 43.9 Legend AA
Days with Wind Chill < -405.9 2.8 0.4 0 0 0 0 0 0 0 0.1 2.8 12.1 Legend AA
Humidity:
Average Vapour Pressure (kPa)0.2 0.2 0.4 0.6 0.9 1.4 1.7 1.5 1.1 0.7 0.4 0.2 0.8 Legend AA
Average Relative Humidity - 0600LST (%)76.9 78.3 81.7 79.1 78.3 83.4 87.7 87.8 87.4 84.3 84.5 80 82.4 Legend AA
Average Relative Humidity - 1500LST (%)72.7 71.7 68.5 49.1 46.7 54.5 55.6 52.4 54.8 60.1 72 75.1 61.1 Legend AA
Pressure:
Average Station Pressure (kPa)98.9 98.9 98.9 98.7 98.5 98.3 98.4 98.5 98.5 98.6 98.7 98.8 98.6 Legend AA
Average Sea Level Pressure (kPa)102 102 101.9 101.6 101.4 101.2 101.3 101.4 101.4 101.5 101.6 101.9 101.6 Legend AA
Radiation:
Extreme Global - RF1 (MJ/m2)8.9 15.4 22.1 27.9 32.9 33.8 32.7 28.9 22.9 15.6 9.6 6.4   Legend
Date
(yyyy/dd)
1979/ 31 1962/ 28 1975/ 30 1966/ 30 1964/ 28 1963/ 20 1965/ 05 1958/ 02 1962/ 01 1977/ 02 1963/ 01 1964/ 04  
Extreme Diffuse - RF2 (MJ/m2)5.7 8.5 13.1 17.2 14 19.5 17.5 18.1 11 9.7 5.4 4   Legend
Date
(yyyy/dd)
1978/ 27 1991/ 28 1979/ 31 1989/ 10 1980/ 20 1998/ 25 1990/ 08 1990/ 01 1977/ 01 1999/ 13 1988/ 01 1978/ 04  
Visibility (hours with):
< 1 km7.9 8.9 9.1 4.1 1.3 1.4 1.7 1.4 1.8 4.9 9.3 7.6 59.5 Legend CC
1 to 9 km96.7 74.9 77 29.7 20.6 24 15.1 19.4 20.8 45.4 84.7 113 621.2 Legend CC
> 9 km639.4 593.7 657.8 686.3 722.1 694.6 727.2 723.2 697.4 693.8 626 623.4 8084.8 Legend CC
Cloud Amount (hours with):
0 to 2 tenths239.8 211.2 237.4 241.8 214.2 177.4 236 261 220.6 206.3 165.8 214.3 2625.7 Legend CC
3 to 7 tenths109 114.4 127.9 163.3 175 197 230.1 207 174 144 114.5 107.8 1863.9 Legend CC
8 to 10 tenths395.2 352 378.8 314.9 354.8 345.6 277.9 276.1 325.3 393.8 439.8 421.8 4276 Legend CC
1981 to 2010 Canadian Climate Normals station data (Frost-Free)
Frost-Free:Code
Average Date of Last Spring Frost May 23 LegendAA
Average Date of First Fall Frost September 22 LegendAA
Average Length of Frost-Free Period 121 Days LegendAA
Probability of last temperature in spring of 0 °C or lower on or after indicated dates 10% 25% 33% 50% 66% 75% 90%
DateJun 07Jun 01May 28May 24May 20May 17May 09
Probability of first temperature in fall of 0 °C or lower on or after indicated dates 10% 25% 33% 50% 66% 75% 90%
DateSep 12Sep 16Sep 18Sep 22Sep 25Sep 27Oct 03
Probability of frost-free period equal to or less than indicated period (Days) 10% 25% 33% 50% 66% 75% 90%
Days96109114119126129141
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