Canadian Climate Normals 1961-1990 Station Data

Temperature and Precipitation Graph
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Normals Data

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/DORVAL INT'L A
QUEBEC

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Normals Station Data
(all elements)
1961 to 1990 Canadian Climate Normals Station Data
 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Temperature
Daily Average (°C)-10.3 -8.8 -2.4 5.7 12.9 18 20.8 19.4 14.5 8.3 1.6 -6.9 6.1
Daily Maximum (°C)-5.8 -4.2 2.0 10.7 18.5 23.4 26.2 24.6 19.8 13.0 5.2 -2.9 10.9
Daily Minimum (°C)-14.9 -13.5 -6.9 0.6 7.3 12.5 15.4 14.1 9.3 3.6 -2 -11 1.2
Extreme Maximum (°C)13.9 15 25.6 30 33.9 35 35.6 37.6 32.8 28.3 21.7 16.7
Date (yyyy/dd)1950/ 25 1981/ 22 1945/ 28 1990/ 27 1962/ 19 1964/ 30 1955/ 22Legend++ 1975/ 01 1953/ 04 1968/ 02 1948/ 06 1951/ 06
Extreme Minimum (°C)-37.8 -33.9 -29.4 -15 -4.4 0.7 6.1 3.3 -2.2 -7.2 -19.4 -32.4
Date (yyyy/dd)1957/ 15 1943/ 15 1950/ 04 1954/ 04 1974/ 02 1986/ 03 1982/ 03 1986/ 29Legend++ 1951/ 30 1972/ 20 1949/ 27 1980/ 25
Precipitation
Rainfall (mm)20.8 18.8 34.1 62.6 66.7 82.5 85.6 100.3 86.5 72.8 70.4 35.1 736.3
Snowfall (cm)47.7 41.2 31.3 10.9 1.6 0 0 0 0 2.6 24.1 54.8 214.2
Precipitation (mm)63.3 56.4 67.6 74.8 68.3 82.5 85.6 100.3 86.5 75.4 93.4 85.6 939.7
Snow Depth at Month-end (cm)21 21 3 0 0 0 0 0 0 0 4 19
Extreme Daily Rainfall (mm)31 31.5 32 34.5 37.6 61.6 57.4 68.8 81.9 63.8 55.1 42.9
Date (yyyy/dd)1964/ 20 1961/ 25 1973/ 17 1979/ 02 1945/ 17 1987/ 08 1987/ 14 1952/ 21 1979/ 14 1989/ 20 1950/ 04 1957/ 26
Extreme Daily Snowfall (cm)32.8 39.4 43.2 25.7 21.8 0 0 0 6.1 21.2 30.5 37.8
Date (yyyy/dd)1979/ 21 1954/ 16 1971/ 04 1975/ 03 1963/ 10 1990/ 30Legend++ 1990/ 31Legend++ 1990/ 31Legend++ 1946/ 30 1988/ 22 1944/ 30 1969/ 27
Extreme Daily Precipitation (mm)32.5 39.4 37.6 34.5 37.6 61.6 57.4 68.8 81.9 63.8 55.1 50.8
Date (yyyy/dd)1985/ 01 1954/ 16 1955/ 22 1979/ 02 1945/ 17 1987/ 08 1987/ 14 1952/ 21 1979/ 14 1989/ 20 1950/ 04 1942/ 30
Degree Days
Above 18 °C0.0 0.0 0.0 0.4 10.0 44.5 97.3 68.2 16.0 0.7 0.0 0.0 237
Above 5 °C0.1 0.6 6.4 65.7 247.7 390.1 491.2 446.0 286.5 121.3 22.4 0.8 2079
Below 0 °C325.7 257.1 114.9 7.6 0.0 0.0 0.0 0.0 0.0 0.6 38.4 227.5 972
Below 18 °C879.6 759.3 633.7 370.1 166.7 44.3 9.1 25.2 119.5 300.7 492.3 774.5 4575
Days With
Maximum Temperature >°C8 8 20 29 31 30 31 31 30 31 25 11 286
Measurable Rainfall4 4 7 11 13 13 12 13 11 13 11 6 117
Measurable Snowfall15 12 9 3 Legend** 0 0 0 0 1 6 14 61
Measurable Precipitation16 13 13 13 13 13 12 13 11 13 15 17 162
Freezing Precipitation3 2 2 Legend** 0 0 0 0 0 Legend** 1 4 13
Fog1 2 1 1 Legend** 1 Legend** 1 2 2 2 2 18
Thunderstorms0 Legend** Legend** 1 2 5 7 6 2 Legend** Legend** Legend** 26
Wind
Speed (km/h)17 16 16 16 14 14 12 11 12 14 16 16 15
Most Frequent DirectionW W W W SW SW SW SW SW W W W W
Hourly Speed (km/h)90 80 74 70 72 66 58 71 61 72 76 69
DirectionSW N NE W SW NE SW SE NE SW W W
Gust Speed (km/h)117 138 161 106 103 111 126 105 97 117 113 103
DirectionSW W S W W S W S W SW S W
Pressure
Station Pressure (kPa)101.17 101.23 101.12 100.96 100.98 100.88 100.93 101.08 101.26 101.28 101.18 101.26 101.11
Sunshine
Bright Sunshine (hours)102.9 123 158.7 182.5 LegendNXN LegendNXN 275.9 240.8 169.8 141.1 84.2 80 LegendNXN
Humidity
Vapour Pressure (kPa)0.25 0.27 0.39 0.61 0.98 1.44 1.73 1.67 1.3 0.86 0.57 0.33 0.87
Relative Humidity - 0600LST (%)75 75 75 75 75 78 82 86 87 84 82 78
Relative Humidity - 1500LST (%)69 66 61 55 52 56 55 58 60 62 70 72

Legend

  • C = Calm
  • M = No data for the period
  • N or X = Data exists, but not enough to derive a value
  • + = Most recent occurrence of the extreme value
  • * = Quantity is less than one
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