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.

ATHABASCA 2 *
ALBERTA

* 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)-13.4-10.3-4.33.910.314.316.615.49.93.5-6.3-11.92.3A
Standard Deviation4.94.13.72.11.61.01.01.61.71.63.94.51.2A
Daily Maximum (°C)-8.5-4.81.210.216.820.422.721.615.98.7-2.3-7.27.9A
Daily Minimum (°C)-18.1-15.7-9.7-2.33.88.210.59.23.9-1.7-10.4-16.5-3.2A
Extreme Maximum (°C)13.016.116.729.032.034.434.534.532.228.018.515.0
Date (yyyy/dd)2003/ 071968/ 281964/ 311980/ 281986/ 261970/ 032006/ 221981/ 101967/ 011980/ 061979/ 151999/ 27
Extreme Minimum (°C)-47.0-45.6-42.2-27.2-9.5-1.12.5-3.0-11.7-23.5-40.6-44.0
Date (yyyy/dd)2004/ 271962/ 271962/ 011975/ 012002/ 031967/ 041999/ 061992/ 241974/ 301984/ 311961/ 291992/ 28
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)0.60.61.415.546.587.4103.758.137.114.11.90.4367.3A
Snowfall (cm)21.914.315.910.22.50.00.00.00.48.018.719.6111.4A
Precipitation (mm)22.514.917.225.749.087.4103.758.137.522.120.620.0478.7A
Snow Depth at Month-end (cm)283110100000311199D
Extreme Daily Rainfall (mm)6.06.46.026.544.655.584.865.044.821.012.76.4
Date (yyyy/dd)1984/ 311963/ 232005/ 051997/ 201989/ 181999/ 181953/ 311995/ 081984/ 061981/ 081956/ 051979/ 05
Extreme Daily Snowfall (cm)17.316.520.331.012.00.00.00.010.220.316.020.3
Date (yyyy/dd)1974/ 141972/ 151968/ 122002/ 141982/ 051952/ 201952/ 011952/ 011970/ 231959/ 081984/ 111955/ 21
Extreme Daily Precipitation (mm)17.316.520.331.046.655.584.865.044.821.016.020.3
Date (yyyy/dd)1974/ 141972/ 151968/ 122002/ 141989/ 181999/ 181953/ 311995/ 081984/ 061981/ 081984/ 111955/ 21
Extreme Snow Depth (cm)57626361120000244442
Date (yyyy/dd)1994/ 181994/ 261982/ 121982/ 011982/ 051981/ 011981/ 011981/ 011980/ 011984/ 181984/ 191991/ 06
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 °C24.718.7122.50.0400003.11824.1103.1C
> 0 °C6.39.51927.5313031313027.9126.9262.1C
> 10 °C0.080.582.21626.629.63130.724.3130.270.15174.4C
> 20 °C0001.5916.422.718.56.71.10075.8C
> 30 °C00000.080.240.520.880.110001.8C
> 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 °C0.370.460.818.524.329.73130.824.510.40.650.38161.9A
<= 2 °C30.928.130.825.611.40.6400.6910.325.829.730.9224.8A
<= 0 °C30.627.830.221.36.70.2800.235.520.629.430.6203.1A
< -2 °C29.926.925.9122000.041.91227.229.7167.5A
< -10 °C23.219.311.72000001.412.922.292.8A
< -20 °C11.67.43.60.36000000.083.39.535.8A
< - 30 °C4.12.10.3000000000.382.99.7A
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 mm0.260.330.784.38.913.914.611.39.25.40.810.2369.9A
>= 5 mm0.0400.1112.75.35.83.82.40.690.07021.9A
>= 10 mm0000.311.42.931.710.270.04010.7A
>= 25 mm0000.040.260.461.10.190.120002.1A
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 cm6.95.4520.590000.1925.57.134.6A
>= 5 cm1.60.700.930.810.2200000.541.31.27.4A
>= 10 cm0.190.150.300.220.0700000.120.370.191.6A
>= 25 cm0000.04000000000.04A
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 mm7.15.65.76.19.213.914.611.39.47.16.27.3103.5A
>= 5 mm1.70.7811.82.95.35.83.82.41.41.41.229.5A
>= 10 mm0.190.150.300.541.52.931.710.420.440.1912.4A
>= 25 mm0000.080.260.461.10.190.120002.2A
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 °C0000000.2000000.2C
Above 18 °C000024.517.415.50.700040.1C
Above 15 °C0000.110.226.964.151.65.90.100159.1C
Above 10 °C0006.960.6131.9204.9169.651.15.500630.6C
Above 5 °C0.40.71.543.9173.8278.5359.9321.3156.540.30.50.41377.5C
Above 0 °C4.37.829.2144.8320.7428.5514.9476.3298.5135.510.54.92375.8C
Below 0 °C418292.816124.90.70000.126.3200.6372.11496.5C
Below 5 °C569.2426.8288.2748.90008.186.1340.6522.62324.5C
Below 10 °C723.8567.3441.718750.73.40.13.352.6206.3490.2677.33403.7C
Below 15 °C878.8708.5596.7330.3155.348.514.340.3157.5355.9640.2832.34758.3C
Below 18 °C971.8793.2689.7420.124011660.597.2242.3448.8730.2925.35,735C
Frost-Free
1981 to 2010 Canadian Climate Normals station data
Frost-Free
Date/Days Code
Average Date of Last Spring Frost May 23 C
Average Date of First Fall Frost Sept 11 C
Average Length of Frost-Free Period 110 Days C
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 10May 30May 28May 21May 16May 15May 10
Probability of first temperature in fall of 0 °C or lower on or after indicated dates10%25%33%50%66%75%90%
DateAug 29Sep 07Sep 09Sep 10Sep 16Sep 20Oct 03
Probability of frost-free period equal to or less than indicated period (Days)10%25%33%50%66%75%90%
Days8598106112122125136

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.

ATHABASCA 2

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