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.

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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)-6.1-6.8-3.22.68.012.817.317.313.07.52.3-2.55.2C
Standard Deviation1.92.82.21.61.51.31.41.11.11.21.11.62.5C
Daily Maximum (°C)-2.7-3.00.86.412.417.422.021.617.110.85.00.49.0C
Daily Minimum (°C)-9.6-10.6-7.2-1.23.48.212.612.98.84.0-0.4-5.31.3C
Extreme Maximum (°C)16.514.020.522.527.235.034.434.431.125.021.716.7
Date (yyyy/dd)2006/ 151996/ 171999/ 291986/ 261950/ 262003/ 271936/ 111936/ 111936/ 241968/ 041967/ 031973/ 22
Extreme Minimum (°C)-31.7-31.7-29.4-18.5-7.5-4.41.10.0-2.8-7.8-16.1-20.6
Date (yyyy/dd)1934/ 221934/ 101939/ 111994/ 031993/ 111934/ 021934/ 011934/ 311954/ 151935/ 161935/ 161962/ 30
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)39.328.041.856.181.186.891.8107.2105.5106.085.755.3884.5C
Snowfall (cm)105.577.651.624.35.20.20.00.00.16.236.794.0401.3C
Precipitation (mm)144.8105.693.380.486.387.091.8107.2105.5112.2122.4149.21285.8C
Average Snow Depth (cm)4254471500000021815D
Median Snow Depth (cm)4254461500000001614D
Snow Depth at Month-end (cm)485734100000043115C
Extreme Daily Rainfall (mm)52.349.076.553.551.782.864.372.482.679.863.551.9
Date (yyyy/dd)1999/ 241996/ 172003/ 311994/ 071993/ 151995/ 081996/ 141935/ 021948/ 011957/ 021958/ 071990/ 08
Extreme Daily Snowfall (cm)45.261.030.029.017.82.50.00.01.019.638.143.2
Date (yyyy/dd)2005/ 171938/ 101985/ 211948/ 261939/ 051959/ 101933/ 011933/ 011989/ 271999/ 181938/ 251955/ 10
Extreme Daily Precipitation (mm)52.361.076.553.551.782.864.372.482.679.864.556.1
Date (yyyy/dd)1999/ 241938/ 102003/ 311994/ 071993/ 151995/ 081996/ 141935/ 021948/ 011957/ 021958/ 071990/ 08
Extreme Snow Depth (cm)12015512279100000102873
Date (yyyy/dd)1982/ 191988/ 181982/ 031997/ 041990/ 071978/ 011978/ 011978/ 011978/ 011999/ 191978/ 301978/ 12
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 °C22.620.313.22.10.0900000416.779C
> 0 °C8.4817.827.930.930313130312614.3286.2C
> 10 °C0.910.421.56.219.327.631312916.141.2168C
> 20 °C000.040.162920.419.36.70.910058.5C
> 30 °C000000.040.300.3500000.69C
> 35 °C0000000000000C
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 °C0.780.813.610.22630313129.926.213.33.3205.9C
<= 2 °C30.627.93025.411.91.4001.19.622.830190.5C
<= 0 °C30.227.427.419.850.04000.094.816.727.7159.3C
< -2 °C28.525.422.8100.6500000.73922.3119.4C
< -10 °C13.414.89.40.600000000.304.543C
< -20 °C0.521.81.10000000003.4C
< - 30 °C00.0400000000000.04C
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 mm54.76.51114.814.715.215.116.518.814.58.7145.2C
>= 5 mm2.31.72.73.754.95.56.376.95.73.755.3C
>= 10 mm1.40.731.31.82.52.52.73.53.73.22.81.827.8C
>= 25 mm0.380.190.210.200.480.650.580.750.670.420.460.225.2C
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 cm2115.7126.72.10.13000.0821018.988.7C
>= 5 cm7.95.43.81.60.3000000.422.76.828.7C
>= 10 cm2.621.10.520.0400000.2112.510.1C
>= 25 cm0.250.230.130.0400000000.260.91C
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 mm22.817.715.814.915.814.715.215.116.519.320.623.7212.2C
>= 5 mm9.97.26.35.55.34.95.56.377.28.410.383.8C
>= 10 mm4.432.72.62.62.52.73.53.73.44.2540.3C
>= 25 mm0.750.500.420.280.480.650.580.750.670.500.500.526.6C
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 °C0000000.30.500000.9C
Above 18 °C00000.14.829.230.13.70.10067.9C
Above 15 °C0000.11.320.984.885.118.51.300211.9C
Above 10 °C0.100.12.521.799.8226.3225.398.717.32.20694C
Above 5 °C1.60.6319.5102.7234.9380.9380.1239.989.518.92.31473.7C
Above 0 °C8.78.62794.4246.6384.4535.9535.1389.8231.688.223.62573.8C
Below 0 °C199.1200.6128.215.80.200000.118.7100.1662.9C
Below 5 °C347.1333.8259.290.811.30.5000.11399.4233.81388.9C
Below 10 °C500.6474.3411.3223.985.315.40.40.38.995.8232.7386.52435.4C
Below 15 °C655.5615.5566.2371.5219.986.513.91578.7234.8380.5541.53779.4C
Below 18 °C748.5700.2659.2461.4311.7160.551.353153.8326.6470.5634.54731.2C
Frost-Free
1981 to 2010 Canadian Climate Normals station data
Frost-Free
Date/Days Code
Average Date of Last Spring Frost May 19 D
Average Date of First Fall Frost Oct 13 D
Average Length of Frost-Free Period 146 Days D
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 06May 28May 27May 23May 18May 17May 08
Probability of first temperature in fall of 0 °C or lower on or after indicated dates10%25%33%50%66%75%90%
DateSep 19Oct 01Oct 04Oct 11Oct 16Oct 19Oct 23
Probability of frost-free period equal to or less than indicated period (Days)10%25%33%50%66%75%90%
Days116125129140145152164

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.

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