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.

SWIFT CURRENT A
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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)-10.1-8.7-2.55.310.915.318.217.611.54.9-3.9-9.34.1D
Standard Deviation4.94.73.82.01.71.81.62.12.12.03.44.33.1D
Daily Maximum (°C)-5.1-3.72.711.817.621.725.124.618.111.01.1-4.410.1D
Daily Minimum (°C)-15.0-13.6-7.7-1.34.08.911.210.54.9-1.4-8.9-14.2-1.9D
Extreme Maximum (°C)11.917.220.633.837.338.937.838.936.131.722.220.0
Date (yyyy/dd)2002/ 071992/ 271939/ 221980/ 201988/ 291941/ 231946/ 301949/ 061940/ 031943/ 031975/ 041939/ 05
Extreme Minimum (°C)-42.8-41.7-35.6-28.9-12.2-2.91.7-1.1-9.4-24.2-33.7-44.4
Date (yyyy/dd)1943/ 231939/ 101951/ 081975/ 011954/ 021985/ 041967/ 021950/ 191961/ 301991/ 291985/ 261977/ 09
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)0.80.72.58.344.877.160.147.432.19.51.50.5285.3D
Snowfall (cm)16.411.417.211.06.40.00.00.03.99.914.519.2109.9D
Precipitation (mm)16.611.819.419.151.277.160.147.436.018.915.819.1392.5D
Extreme Daily Rainfall (mm)7.66.414.621.836.465.845.756.239.425.210.47.6
Date (yyyy/dd)1985/ 171989/ 231993/ 261969/ 301989/ 131966/ 241950/ 091993/ 171967/ 121994/ 021967/ 221977/ 14
Extreme Daily Snowfall (cm)13.722.133.522.931.45.10.00.020.717.822.923.6
Date (yyyy/dd)1967/ 051974/ 271951/ 051940/ 021982/ 281950/ 071938/ 011938/ 011982/ 281969/ 241966/ 161988/ 13
Extreme Daily Precipitation (mm)14.517.533.526.442.065.845.756.239.425.219.326.4
Date (yyyy/dd)1964/ 211974/ 271951/ 051969/ 301986/ 051966/ 241950/ 091993/ 171967/ 121994/ 021966/ 161988/ 13
Extreme Snow Depth (cm)435361461800015202336
Date (yyyy/dd)1965/ 071974/ 281974/ 221975/ 081966/ 011955/ 011955/ 011955/ 011982/ 301961/ 231958/ 171964/ 29
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 °C19.516.610.22.10.050000.112.911.620.783.7D
> 0 °C11.511.620.8283130313129.928.218.410.3281.5D
> 10 °C0.220.755.51927.129.53130.926.417.93.40.61192.2D
> 20 °C000.053.910.81826.824.211.83.40.11099D
> 30 °C00000.582.35.151.500014.4D
> 35 °C00000.050.320.530.500.050001.5D
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 °C0.501.12.212.424.829.73130.926.112.72.10.37173.7D
<= 2 °C30.728.130.422.8100.8400.408.122.929.331214.4D
<= 0 °C30.527.128.917.66.20.3200.10418.32830.6191.5D
< -2 °C29.625.524.112.23.10.05001.912.925.629.5164.3D
< -10 °C19.416.191.6000001.910.619.277.6D
< -20 °C9.67.32.40.05000000.302.57.329.5D
< - 30 °C2.91.80.2500000000.112.27.3D
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 mm0.400.382.15.310.913.39.910.58.451.60.6968.5D
>= 5 mm0.070.060.130.312.54.63.9320.310016.8D
>= 10 mm000.060.060.882.41.91.30.800.06007.5D
>= 25 mm00000.440.630.440.250.130.06002D
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 cm10.98.684.61.40001.13.97.910.656.8D
>= 5 cm0.400.190.940.630.380000.270.500.670.884.9D
>= 10 cm000.130.250.190000.070.310.070.131.2D
>= 25 cm00000.0600000000.06D
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 mm11.38.7108.611.913.69.310.58.589.210.7120.2D
>= 5 mm0.580.351.212.84.63.632.210.790.8921.9D
>= 10 mm0.1100.150.4012.51.61.41.10.400.050.118.9D
>= 25 mm00000.450.630.350.200.210.0500.051.9D
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)22.120.520.020.120.518.616.516.818.420.020.321.919.6A
Most Frequent DirectionWWWSWWWWWWWWWA
Maximum Hourly Speed (km/h)9789808911311197778910393105
Date (yyyy/dd)1966/ 081965/ 201964/ 151981/ 061965/ 161963/ 221956/ 251962/ 051964/ 251967/ 191962/ 201963/ 11
Direction of Maximum Hourly SpeedWWNWWWSNWWNENWWNW
Maximum Gust Speed (km/h)129121109130153158129105122129138129
Date (yyyy/dd)1966/ 081965/ 201968/ 301981/ 061965/ 161976/ 031956/ 251962/ 181971/ 111967/ 191962/ 191963/ 11
Direction of Maximum GustWWNWWSWNWNWWNWWNW
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 °C000001.422.60.10006D
Above 18 °C0000.14.621.545.546.59.10.200127.5D
Above 15 °C0001.617.453107.5102.926.42.400311.1D
Above 10 °C000.517.777.2163.9253.8236.589.119.20.50858.4D
Above 5 °C0.51.28.672.5191.2309.6408.8389.7203.773.25.40.21664.5D
Above 0 °C814.349.9179336.1459.5563.8544.7345.5177.2338.42719.3D
Below 0 °C321.2258.4127.320.70.80000.826.8146.1303.71205.9D
Below 5 °C468.7386.324164.210.90.100.18.977.9268.5450.61,977D
Below 10 °C623.3526.1388159.4524.401.944.4178.8413.5605.32996.9D
Below 15 °C778.3667.1542.5293.3147.143.58.723.2131.6317.1563.1760.34275.7D
Below 18 °C871.3751.7635.5381.8227.410239.759.8204.3407.9653.1853.35187.7D
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 Daily8.810.512.014.115.316.315.714.613.210.89.48.6
Date (yyyy/dd)1973/ 311990/ 281994/ 311961/ 301980/ 271954/ 211951/ 031951/ 021978/ 011992/ 011974/ 041975/ 21
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 Humidex11.816.919.933.639.840.240.940.536.229.922.213.7
Date (yyyy/dd)2002/ 071992/ 272007/ 241980/ 201960/ 121961/ 252002/ 141969/ 241960/ 041980/ 051975/ 041997/ 14
Days with Humidex >= 300.00.00.00.00.32.97.47.11.50.00.00.019.2C
Days with Humidex >= 350.00.00.00.00.00.81.71.00.00.00.00.03.5C
Days with Humidex >= 400.00.00.00.00.00.00.10.00.00.00.00.00.2C
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-58-58-48-41-17-70-4-15-35-51-59
Date (yyyy/dd)1963/ 221996/ 012003/ 091975/ 011953/ 111969/ 121953/ 011992/ 251961/ 291991/ 291985/ 261964/ 16
Days with Wind Chill < -2018.513.97.00.70.00.00.00.00.00.86.515.963.2C
Days with Wind Chill < -3010.16.02.80.00.00.00.00.00.00.12.16.928.1C
Days with Wind Chill < -403.61.40.50.00.00.00.00.00.00.00.22.48.1C
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)0.30.30.40.50.71.11.31.20.80.60.40.30.7C
Average Relative Humidity - 0600LST (%)77.579.281.676.675.980.781.677.876.377.279.477.778.5A
Average Relative Humidity - 1500LST (%)74.772.864.144.844.949.446.542.245.251.666.873.556.4A
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)91.891.991.991.991.891.892929291.991.891.891.9C
Average Sea Level Pressure (kPa)101.8101.9101.7101.5101.4101.3101.4101.5101.5101.6101.6101.8101.6C
Frost-Free
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 11Jun 02May 29May 22May 15May 13May 06
Probability of first temperature in fall of 0 °C or lower on or after indicated dates10%25%33%50%66%75%90%
DateSep 03Sep 11Sep 15Sep 19Sep 23Sep 24Oct 01
Probability of frost-free period equal to or less than indicated period (Days)10%25%33%50%66%75%90%
Days90107111119128131138

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.

SWIFT CURRENT A

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