Canadian Climate Normals 1981-2010 Station Data

Temperature and Precipitation Graph
Javascript must be enabled for this page to work
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.

MONTREAL/PIERRE ELLIOTT TRUDEAU INTL A *
QUEBEC

* This station meets WMO standards for temperature and precipitation.

Additional Search Options

Download Data

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)-9.7-7.7-2.06.413.418.621.220.115.58.52.1-5.46.8A
Standard Deviation3.32.72.11.61.61.31.01.21.51.41.63.00.9A
Daily Maximum (°C)-5.3-3.22.511.618.923.926.325.320.613.05.9-1.411.5A
Daily Minimum (°C)-14.0-12.2-6.51.27.913.216.114.810.33.9-1.7-9.32.0A
Extreme Maximum (°C)13.915.025.630.034.735.035.637.633.528.321.718.0
Date (yyyy/dd)1950/ 251981/ 221945/ 281990/ 272010/ 261964/ 301953/ 171975/ 011999/ 041968/ 021948/ 062001/ 06
Extreme Minimum (°C)-37.8-33.9-29.4-15.0-4.40.06.13.3-2.2-7.2-19.4-32.4
Date (yyyy/dd)1957/ 151943/ 151950/ 041954/ 041974/ 021995/ 051982/ 031957/ 281951/ 301972/ 201949/ 271980/ 25
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)27.320.929.767.781.287.089.394.183.189.176.738.8784.9A
Snowfall (cm)49.541.236.212.90.00.00.00.00.01.819.048.9209.5A
Precipitation (mm)77.262.769.182.281.287.089.394.183.191.396.486.81000.3A
Average Snow Depth (cm)111391000000174A
Median Snow Depth (cm)111380000000073A
Snow Depth at Month-end (cm)1311300000002103A
Extreme Daily Rainfall (mm)46.631.532.448.245.666.563.673.881.980.593.551.2
Date (yyyy/dd)2006/ 181961/ 251998/ 092006/ 232006/ 191997/ 212005/ 052005/ 311979/ 141995/ 061996/ 082003/ 11
Extreme Daily Snowfall (cm)35.839.443.233.921.80.00.00.06.121.230.541.2
Date (yyyy/dd)1999/ 151954/ 161971/ 042000/ 091963/ 101942/ 011942/ 011942/ 011946/ 301988/ 221944/ 302005/ 16
Extreme Daily Precipitation (mm)47.043.442.848.245.666.563.673.881.980.593.551.4
Date (yyyy/dd)2006/ 182008/ 012001/ 222006/ 232006/ 191997/ 212005/ 052005/ 311979/ 141995/ 061996/ 082003/ 11
Extreme Snow Depth (cm)61911024480000153364
Date (yyyy/dd)1959/ 171958/ 221971/ 122001/ 011963/ 111955/ 011955/ 011955/ 011955/ 011962/ 291965/ 221970/ 24
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 °C23.219.29.90.52000000417.274A
> 0 °C7.8921.129.53130313130312613.8291.2A
> 10 °C0.140.273.416.93030313129.821.66.50.77201.3A
> 20 °C000.102.811.92430.128.816.62.800117.1A
> 30 °C00000.372.23.62.50.680009.3A
> 35 °C00000000.0700000.07A
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 °C1.11.5518.730.430313129.82511.42.6217.5A
<= 2 °C30.727.829.517.62.10.03000.7911.523.430.3173.6A
<= 0 °C29.926.72611.30.570000.18618.628.4147.7A
< -2 °C28.925.421.96.30.1100002.313.426124.3A
< -10 °C21.517.48.90.280000001.413.562.9A
< -20 °C7.63.60.83000000002.314.3A
< - 30 °C0.170.070000000000.030.27A
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 mm4.246.911.613.613.312.311.611.11311.75.9119.1A
>= 5 mm1.71.224.55.155.25.44.94.94.82.446.9A
>= 10 mm0.970.730.872.22.82.92.83.42.62.82.31.425.8A
>= 25 mm0.200.030.030.340.470.730.790.800.830.630.570.175.6A
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 cm15.312.19.13.20.0700000.725.41358.9A
>= 5 cm3.22.62.20.90000000.101.33.313.6A
>= 10 cm1.110.930.33000000.030.571.35.4A
>= 25 cm0.030.100.130.1000000000.170.53A
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 mm16.713.713.612.913.613.312.311.611.113.314.816.3163.3A
>= 5 mm4.63.84.55.35.155.25.44.955.95.359.9A
>= 10 mm2.42.22.22.72.82.92.83.42.62.83.1332.9A
>= 25 mm0.430.100.300.520.470.730.770.800.830.730.730.506.9A
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 cm28.726.4202.6000000.13521.2104.1A
>= 5 cm23.620.9151.30000002.216.579.6A
>= 10 cm15.514.111.20.800000000.6710.352.5A
>= 20 cm5.27.460.270000000.102.421.3A
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)16.015.515.615.914.613.212.411.812.614.215.315.614.4A
Most Frequent DirectionWWWWSWSWSWSWWWWWWA
Maximum Hourly Speed (km/h)908074707266585565727672
Date (yyyy/dd)1959/ 221961/ 261971/ 041977/ 031964/ 091972/ 221956/ 111965/ 062005/ 291979/ 061975/ 102000/ 18
Direction of Maximum Hourly SpeedSWNNEWSWNESWNWSWSWSWW
Maximum Gust Speed (km/h)11713816110610311112610597117113103
Date (yyyy/dd)1959/ 221956/ 251964/ 051975/ 191956/ 141957/ 291975/ 021966/ 091956/ 061979/ 061989/ 161971/ 11
Direction of Maximum GustSWSWSSWSWSWSSWSWSSW
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 °C00000.23.47.951.100017.6A
Above 18 °C0000.61052.8104.381.221.40.800271.2A
Above 15 °C0002.830.9115191.7159.458.84.900563.5A
Above 10 °C000.519.6116.8255.6346.3311.9171.535.12.70.11,260A
Above 5 °C0.50.97.379.5258.3405.4501.3466.9317.1121.224.41.82184.5A
Above 0 °C6.69.345.9198.2412.8555.4656.3621.9467263.19616.73349.3A
Below 0 °C310.3226.7108.65.4000000.232.2183.4866.8A
Below 5 °C459.1359.422536.80.50000.113.3110.6323.41528.3A
Below 10 °C613.7499.7373.2126.9140.2004.582.1239476.72,430A
Below 15 °C768.7640.9527.726083.19.60.42.541.8207386.2631.73559.6A
Below 18 °C861.7725.6620.7347.9155.237.4617.494.4295.9476.2724.74,363A
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)00004.24.64.63.82.61.7000
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
Total Hours101.2127.8164.3178.3228.9240.3271.5246.3182.2143.583.683.62051.3D
Days with measurable21.221.825.625.328.328.230.029.626.826.521.020.9305.2D
% of possible daylight hours35.743.744.644.049.651.357.356.348.342.229.230.744.4D
Extreme Daily9.310.711.813.614.614.914.814.212.710.99.88.6
Date (yyyy/dd)2000/ 291978/ 281971/ 312000/ 301970/ 281970/ 121994/ 111987/ 011986/ 011983/ 101987/ 021999/ 01
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 Humidex13.514.723.233.839.745.045.846.842.833.524.618.1
Date (yyyy/dd)1996/ 191981/ 221977/ 302002/ 162010/ 261953/ 212002/ 021975/ 011953/ 041967/ 031971/ 021982/ 04
Days with Humidex >= 300.00.00.00.11.88.817.013.74.40.30.00.046.1A
Days with Humidex >= 350.00.00.00.00.43.06.14.71.00.00.00.015.1A
Days with Humidex >= 400.00.00.00.00.00.51.40.60.00.00.00.02.5A
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-49-46-43-26-10000-5-11-31-46
Date (yyyy/dd)1976/ 231967/ 122003/ 031995/ 051978/ 011953/ 011953/ 011953/ 012000/ 281976/ 261958/ 301980/ 25
Days with Wind Chill < -2016.712.24.80.10.00.00.00.00.00.00.28.342.2A
Days with Wind Chill < -305.31.70.50.00.00.00.00.00.00.00.01.48.8A
Days with Wind Chill < -400.60.00.00.00.00.00.00.00.00.00.00.10.7A
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)0.30.30.40.611.51.81.71.40.90.60.40.9A
Average Relative Humidity - 0600LST (%)74.673.573.172.473.6788184.786.383.780.879.378.4A
Average Relative Humidity - 1500LST (%)68.163.458.351.951.455.356.156.859.7626871.460.2A
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)101.2101.3101.2101101100.8100.9101.1101.2101.3101.2101.2101.1A
Average Sea Level Pressure (kPa)101.7101.7101.6101.4101.4101.3101.3101.5101.7101.7101.7101.7101.6A
Radiation
1981 to 2010 Canadian Climate Normals station data
Radiation
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Diffuse - RF2 (MJ/m2)941301882672311651258972
Extreme Global - RF1 (MJ/m2)11172328313231272318128
Date (yyyy/dd)1994/ 311992/ 291994/ 301992/ 261997/ 271994/ 101993/ 011995/ 081992/ 021995/ 011993/ 021989/ 01
Extreme Diffuse - RF2 (MJ/m2)6913141414151311854
Date (yyyy/dd)1993/ 291990/ 251998/ 231989/ 241997/ 291992/ 051993/ 051989/ 111990/ 211993/ 051990/ 131992/ 27
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 km7.66.89.13.31.30.80.20.81.84.94.37.147.9C
1 to 9 km145.7113.790.756.836.539.536.549.242.460.198.5136.6906.3C
> 9 km590.7556.3644.3659.9706.2679.7707.3694675.8679617.3600.37810.6C
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 tenths182.3194220181.7181.4180.4196.9209.1219.4188.3130.3155.22239.1C
3 to 7 tenths94.496.1103.4121.1152.8178.7205.3204.7158.2125.5102.7971639.9C
8 to 10 tenths467.3386.7420.6417.2409.8360.9341.9330.2342.5430.1487491.84885.9C
Frost-Free
1981 to 2010 Canadian Climate Normals station data
Frost-Free
Date/Days Code
Average Date of Last Spring Frost Apr 29 A
Average Date of First Fall Frost Oct 12 A
Average Length of Frost-Free Period 165 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%
DateMay 15May 08May 06Apr 29Apr 27Apr 25Apr 19
Probability of first temperature in fall of 0 °C or lower on or after indicated dates10%25%33%50%66%75%90%
DateSep 27Oct 02Oct 06Oct 09Oct 14Oct 15Oct 21
Probability of frost-free period equal to or less than indicated period (Days)10%25%33%50%66%75%90%
Days139152155160165169177

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.

MONTREAL/PIERRE ELLIOTT TRUDEAU INTL A

Date modified: