Canadian Climate Normals 1981-2010 Station Data

Temperature and Precipitation Graph
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Normals 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.

WINNIPEG RICHARDSON INT'L A *
MANITOBA

* This station meets WMO standards for temperature and precipitation.

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Normals Station Data
(all elements)
Temperature
1981 to 2010 Canadian Climate Normals station data
Temperature
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Daily Average (°C)-16.4-13.2-5.84.411.617.019.718.812.75.0-4.9-13.23.0A
Standard Deviation4.14.23.12.72.12.01.41.91.31.83.64.41.2A
Daily Maximum (°C)-11.3-8.1-0.810.918.623.225.925.419.010.5-0.5-8.58.7A
Daily Minimum (°C)-21.4-18.3-10.7-2.04.510.713.512.16.4-0.5-9.2-17.8-2.7A
Extreme Maximum (°C)7.811.723.334.337.037.837.840.638.830.523.911.7
Date (yyyy/dd)1942/ 231958/ 251946/ 271980/ 211980/ 221995/ 171939/ 121949/ 071983/ 021992/ 011975/ 051939/ 06
Extreme Minimum (°C)-42.2-45.0-37.8-26.3-11.1-3.31.10.0-7.2-17.2-34.0-37.8
Date (yyyy/dd)1943/ 201966/ 181962/ 011979/ 021958/ 011964/ 031972/ 032004/ 201965/ 261941/ 301985/ 301967/ 31
Precipitation
1981 to 2010 Canadian Climate Normals station data
Precipitation
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Rainfall (mm)0.22.79.719.254.190.079.577.045.532.76.91.5418.9A
Snowfall (cm)23.712.516.510.62.60.00.00.00.34.819.923.0113.7A
Precipitation (mm)19.913.824.530.056.790.079.577.045.837.525.021.5521.1A
Average Snow Depth (cm)16171020000004105C
Median Snow Depth (cm)15181020000004105C
Snow Depth at Month-end (cm)1816400000017135C
Extreme Daily Rainfall (mm)3.820.033.636.060.269.883.683.865.074.419.021.8
Date (yyyy/dd)1944/ 202000/ 252004/ 271986/ 301978/ 251984/ 211993/ 251962/ 111941/ 031949/ 102000/ 061982/ 02
Extreme Daily Snowfall (cm)23.023.635.622.029.00.30.00.05.824.627.721.6
Date (yyyy/dd)1989/ 071955/ 201966/ 041997/ 052004/ 111969/ 121938/ 011938/ 011984/ 241971/ 301958/ 171948/ 15
Extreme Daily Precipitation (mm)22.523.635.644.160.269.883.683.865.074.427.721.8
Date (yyyy/dd)1989/ 071955/ 201966/ 041986/ 301978/ 251984/ 211993/ 251962/ 111941/ 031949/ 101958/ 171982/ 02
Extreme Snow Depth (cm)91898561180002185581
Date (yyyy/dd)1956/ 301956/ 011956/ 091956/ 011967/ 021955/ 011955/ 011955/ 011984/ 251971/ 311955/ 231955/ 23
Days with Maximum Temperature
1981 to 2010 Canadian Climate Normals station data
Days with Maximum Temperature
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
<= 0 °C28.523.215.52.3000001.415.326.8113A
> 0 °C2.5515.527.7313031313029.614.74.2252.2A
> 10 °C001.616.22830313128.316.31.90184.2A
> 20 °C0003.71322.229.12712.42.200109.7A
> 30 °C0000.111.22.54.14.70.650.040013.3A
> 35 °C00000.040.300.150.480.040001A
Days with Minimum Temperature
1981 to 2010 Canadian Climate Normals station data
Days with Minimum Temperature
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
> 0 °C00.302.610.423.529.9313127.514.11.70.23172.1A
<= 2 °C3128.230.723.610.70.7800.115.721.229.531212.6A
<= 0 °C3127.928.419.67.50.1500.042.516.928.330.8193.1A
< -2 °C30.927.325.7154.60000.811125.630.5171.4A
< -10 °C27.421.914.62.20.0400000.9311.823.5102.2A
< -20 °C17.912.85.20.110000002.613.352A
< - 30 °C5.93.30.5200000000.192.712.6A
Days with Rainfall
1981 to 2010 Canadian Climate Normals station data
Days with Rainfall
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
>= 0.2 mm0.670.932.95.111.313.311.410.710.37.930.8478.3A
>= 5 mm00.150.671.23.55.14.33.82.71.80.480.0423.7A
>= 10 mm00.110.220.481.62.72.621.61.10.150.0412.6A
>= 25 mm000.070.040.300.780.630.810.190.15003A
Days With Snowfall
1981 to 2010 Canadian Climate Normals station data
Days With Snowfall
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
>= 0.2 cm12.47.77.42.90.560000.112.38.611.553.5A
>= 5 cm1.20.560.890.740.150000.040.231.11.26.1A
>= 10 cm0.230.110.330.330.0700000.120.410.352A
>= 25 cm00000.04000000.0400.08A
Days with Precipitation
1981 to 2010 Canadian Climate Normals station data
Days with Precipitation
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
>= 0.2 mm12.289.27.211.513.311.410.710.49.410.311.8125.3A
>= 5 mm0.730.521.51.93.75.14.33.82.72.11.4128.7A
>= 10 mm0.120.190.630.851.72.72.621.61.20.560.3514.5A
>= 25 mm000.070.110.330.780.630.810.190.15003.1A
Days with Snow Depth
1981 to 2010 Canadian Climate Normals station data
Days with Snow Depth
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
>= 1 cm3127.421.93.80.230000.041.215.327127.8C
>= 5 cm26.925.615.62.50.0400000.429.320.4100.7C
>= 10 cm22.120.8122000000.084.312.673.7C
>= 20 cm79.96.11.400000023.529.8C
Wind
1981 to 2010 Canadian Climate Normals station data
Wind
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Speed (km/h)17.416.918.018.518.416.314.615.416.918.017.917.417.1A
Most Frequent DirectionSSSSSSSSSSSSSA
Maximum Hourly Speed (km/h)808081807280897471778778
Date (yyyy/dd)2009/ 311960/ 081982/ 131959/ 071955/ 031954/ 071959/ 271982/ 151953/ 091962/ 161999/ 011995/ 05
Direction of Maximum Hourly SpeedNWNWWNWSSSEENNWNWW
Maximum Gust Speed (km/h)1061291131061091271271229811912498
Date (yyyy/dd)1982/ 261965/ 201966/ 041963/ 031959/ 111967/ 291959/ 141973/ 181959/ 091991/ 171960/ 211991/ 01
Direction of Maximum GustSENWNNNWWSNWNWWWW
Degree Days
1981 to 2010 Canadian Climate Normals station data
Degree Days
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Above 24 °C00000.52.83.440.500011.1A
Above 18 °C0000.410.637.470.760.99.50.100189.6A
Above 15 °C0002.928.385.9146.8127.129.21.300421.5A
Above 10 °C00018.897.3211.7298.6271.8105.813.70.101017.7A
Above 5 °C001.766.3212.9359.4453.6426.5233.364301820.7A
Above 0 °C0.32.123160.1359.1509.4608.6581.5381.1171.323.21.12820.6A
Below 0 °C508.4374.2202.127.20.5000015.1168.8408.81705.1A
Below 5 °C663.1513.2335.883.59.40002.262.8298.6562.72531.3A
Below 10 °C818.1654.3489.118648.72.300.324.7167.5445.7717.73554.4A
Below 15 °C973.1795.4644.1320134.826.63.310.698.1310.2595.6872.74784.3A
Below 18 °C1066.1880737.1407.5210.16820.137.3168.4402685.6965.75648.1A
Evaporation
1981 to 2010 Canadian Climate Normals station data
Evaporation
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Lake Evaporation (mm)00004.74.94.74.52.91.4000
Bright Sunshine
1981 to 2010 Canadian Climate Normals station data
Bright Sunshine
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Extreme Daily9.011.712.414.115.416.015.714.612.910.79.48.0
Date (yyyy/dd)1993/ 281986/ 221994/ 291978/ 301967/ 311979/ 161972/ 171969/ 011966/ 011957/ 031963/ 011978/ 06
Humidex
1981 to 2010 Canadian Climate Normals station data
Humidex
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Extreme Humidex6.311.118.834.140.246.147.345.545.934.323.99.3
Date (yyyy/dd)1986/ 111958/ 251967/ 301980/ 211988/ 311996/ 272007/ 252001/ 041983/ 021961/ 061975/ 051982/ 02
Days with Humidex >= 300.00.00.00.21.66.613.912.12.70.00.00.037.1A
Days with Humidex >= 350.00.00.00.00.32.15.24.20.50.00.00.012.3A
Days with Humidex >= 400.00.00.00.00.00.51.00.70.00.00.00.02.2A
Wind Chill
1981 to 2010 Canadian Climate Normals station data
Wind Chill
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Extreme Wind Chill-56-57-49-36-21-800-11-24-48-51
Date (yyyy/dd)1966/ 281996/ 011962/ 011954/ 021967/ 022009/ 061953/ 011953/ 011965/ 261991/ 301958/ 291989/ 20
Days with Wind Chill < -2024.819.311.10.90.00.00.00.00.00.27.920.985.1A
Days with Wind Chill < -3016.311.13.60.00.00.00.00.00.00.01.611.343.9A
Days with Wind Chill < -405.92.80.40.00.00.00.00.00.00.00.12.812.1A
Humidity
1981 to 2010 Canadian Climate Normals station data
Humidity
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Average Vapour Pressure (kPa)0.20.20.40.60.91.41.71.51.10.70.40.20.8A
Average Relative Humidity - 0600LST (%)76.978.381.779.178.383.487.787.887.484.384.58082.4A
Average Relative Humidity - 1500LST (%)72.771.768.549.146.754.555.652.454.860.17275.161.1A
Pressure
1981 to 2010 Canadian Climate Normals station data
Pressure
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Average Station Pressure (kPa)98.998.998.998.798.598.398.498.598.598.698.798.898.6A
Average Sea Level Pressure (kPa)102102101.9101.6101.4101.2101.3101.4101.4101.5101.6101.9101.6A
Radiation
1981 to 2010 Canadian Climate Normals station data
Radiation
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Extreme Global - RF1 (MJ/m2)9152228333433292316106
Date (yyyy/dd)1979/ 311962/ 281975/ 301966/ 301964/ 281963/ 201965/ 051958/ 021962/ 011977/ 021963/ 011964/ 04
Extreme Diffuse - RF2 (MJ/m2)68131714201718111054
Date (yyyy/dd)1978/ 271991/ 281979/ 311989/ 101980/ 201998/ 251990/ 081990/ 011977/ 011999/ 131988/ 011978/ 04
Visibility (hours with)
1981 to 2010 Canadian Climate Normals station data
Visibility (hours with)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
< 1 km7.98.99.14.11.31.41.71.41.84.99.37.659.5C
1 to 9 km96.774.97729.720.62415.119.420.845.484.7113621.2C
> 9 km639.4593.7657.8686.3722.1694.6727.2723.2697.4693.8626623.48084.8C
Cloud Amount (hours with)
1981 to 2010 Canadian Climate Normals station data
Cloud Amount (hours with)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
0 to 2 tenths239.8211.2237.4241.8214.2177.4236261220.6206.3165.8214.32625.7C
3 to 7 tenths109114.4127.9163.3175197230.1207174144114.5107.81863.9C
8 to 10 tenths395.2352378.8314.9354.8345.6277.9276.1325.3393.8439.8421.84,276C
Frost-Free
1981 to 2010 Canadian Climate Normals station data
Frost-Free
Date/Days Code
Average Date of Last Spring Frost May 23 A
Average Date of First Fall Frost Sept 22 A
Average Length of Frost-Free Period 121 Days A
1981 to 2010 Canadian Climate Normals station data
Frost-Free
Probability of last temperature in spring of 0 °C or lower on or after indicated dates10%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 dates10%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
Station / Element Metadata

Statistics listed below are provided as a guide to determine the validity of Normals and Extremes calculations. For example, a station with 30 years of record between 1981 and 2010 with no missing years would be a more reliable normal than a station with 15 years of record and 2 missing years. Less than 100% possible observations indicates that out of the total number of observations used, some records were missing.

WINNIPEG RICHARDSON INT'L A

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