Canadian Climate Normals 1971-2000 Station 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.

Metadata including Station Name, Province, Latitude, Longitude, Elevation, Climate ID, WMO ID, TC ID
MONTREAL/ST-HUBERT A *
QUEBEC
Latitude: 45°31'00.000" N Longitude: 73°25'00.000" W Elevation: 27.40 m
Climate ID: 7027320 WMO ID: 71371 TC ID: YHU

* This station meets WMO standards for temperature and precipitation.

1971 to 2000 Canadian Climate Normals station data
 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Temperature:
Daily Average (°C)-10.4 -9 -2.5 5.5 12.9 17.7 20.5 19.2 13.9 7.5 1 -6.8 5.8 LegendAA
Standard Deviation3 2.9 2.1 1.5 1.4 1 1 1.2 1.3 1.7 1.4 3.2 3.9 LegendAA
Daily Maximum (°C)-5.6 -4.2 2.2 10.9 19.1 23.8 26.4 25.1 19.6 12.6 5.1 -2.3 11.1 LegendAA
Daily Minimum (°C)-15.2 -13.7 -7.3 0 6.6 11.7 14.6 13.3 8.1 2.4 -3 -11.2 0.5 LegendAA
Extreme Maximum (°C)13.9 15.3 23.7 30.6 33.3 35 35.6 35.6 32.8 28.9 22.8 15   Legend
Extreme Minimum (°C)-36.1 -37.2 -36.1 -15 -4.4 0 4.9 1.7 -4.9 -8.9 -22.2 -37.2   Legend
Precipitation:
Rainfall (mm)28.7 22.1 39.2 70.5 81.8 86 98.1 90.6 98 87 78.5 39.3 819.7 LegendAA
Snowfall (cm)53 43.2 33.9 13.6 0.4 0 0 0 0 1.3 22.6 52.6 220.5 LegendAA
Precipitation (mm)79.8 65.4 75.5 86 82.2 86 98.1 90.6 98 88.5 103 93.2 1046.2 LegendAA
Average Snow Depth (cm)19 21 14 1 0 0 0 0 0 0 1 11 6 LegendAA
Median Snow Depth (cm)19 21 13 0 0 0 0 0 0 0 0 10 5 LegendAA
Snow Depth at Month-end (cm)22 22 3 0 0 0 0 0 0 0 4 18 6 LegendCC
Extreme Daily Rainfall (mm)34.3 33 39.6 45.7 49 77.7 73.4 74.4 73.6 67.3 106 47   Legend
Extreme Daily Snowfall (cm)37.8 32.6 51.1 35.6 10.7 0 0 0 0.5 17.8 32.8 46.7   Legend
Extreme Daily Precipitation (mm)37.3 33 52.3 45.7 49 77.7 73.4 74.4 73.6 67.3 106 58.7   Legend
Extreme Snow Depth (cm)89 94 112 43 10 0 0 0 0 13 41 66   Legend
Days with Maximum Temperature:
<= 0 °C23 20 10.6 0.65 0 0 0 0 0 0 5.4 18.1 77.7 LegendAA
> 0 °C8 8.3 20.4 29.4 31 30 31 31 30 31 24.6 12.9 287.6 LegendAA
> 10 °C0.15 0.23 2.9 15.9 29.9 30 31 31 29.6 20.6 5.4 0.44 197.1 LegendAA
> 20 °C0 0 0.08 2.3 13.2 24.3 30 28.1 13 2.5 0.16 0 113.7 LegendAA
> 30 °C0 0 0 0.08 0.64 1.8 4.1 2.1 0.36 0 0 0 9 LegendAA
> 35 °C0 0 0 0 0 0 0.04 0.08 0 0 0 0 0.12 LegendAA
Days with Minimum Temperature:
> 0 °C0.88 1.2 3.7 14.7 29.3 30 31 31 29.1 20.4 8.6 1.9 201.8 LegendAA
<= 2 °C30.9 27.9 29.9 21 4.8 0.16 0 0.04 3.1 15.3 25 30.5 188.6 LegendAA
<= 0 °C30.1 27.1 27.3 15.3 1.7 0.04 0 0 0.92 10.6 21.4 29.1 163.5 LegendAA
< -2 °C29.3 26 23.2 9.5 0.44 0 0 0 0.32 5.8 16.3 27.4 138.2 LegendAA
< -10 °C22.8 19.5 10 0.35 0 0 0 0 0 0 3.1 16.4 72 LegendAA
< -20 °C9.6 5.9 1.4 0 0 0 0 0 0 0 0.08 4.6 21.5 LegendAA
< - 30 °C0.54 0.15 0 0 0 0 0 0 0 0 0 0.08 0.77 LegendAA
Days with Rainfall:
>= 0.2 mm4.5 4.2 7.7 11.7 12.8 12.6 12.3 12.4 12.1 13.2 11.9 6.4 122 LegendAA
>= 5 mm1.9 1.4 2.5 4.8 5.4 5.2 5.5 5.6 5.6 5.4 4.8 2.8 50.9 LegendAA
>= 10 mm1.2 0.54 1.1 2.4 3.2 2.8 3.6 3.4 3.1 2.8 2.4 1.4 27.9 LegendAA
>= 25 mm0.19 0.19 0.15 0.31 0.32 0.64 0.80 0.68 0.92 0.56 0.60 0.12 5.5 LegendAA
Days With Snowfall:
>= 0.2 cm15.8 12.1 8.9 3.9 0.16 0 0 0 0 0.92 6.6 13.9 62.2 LegendAA
>= 5 cm3.4 2.7 2.3 0.69 0.04 0 0 0 0 0.08 1.2 3.4 13.9 LegendAA
>= 10 cm1.4 1 0.62 0.31 0 0 0 0 0 0 0.72 1.7 5.7 LegendAA
>= 25 cm0 0.19 0.08 0.08 0 0 0 0 0 0 0 0.04 0.39 LegendAA
Days with Precipitation:
>= 0.2 mm17.7 14 13.6 13.6 12.8 12.6 12.3 12.4 12.1 13.6 15.8 17.3 167.9 LegendAA
>= 5 mm5 4.1 5 5.6 5.4 5.2 5.5 5.6 5.6 5.4 6.2 5.9 64.7 LegendAA
>= 10 mm2.6 1.9 2.2 2.9 3.2 2.8 3.6 3.4 3.1 2.9 3.3 3.4 35.3 LegendAA
>= 25 mm0.33 0.46 0.31 0.46 0.40 0.64 0.80 0.68 0.92 0.56 0.76 0.40 6.7 LegendAA
Days with Snow Depth:
>= 1 cm28.8 26.6 21.4 4.3 0 0 0 0 0 0.12 7.2 23 111.5 LegendCC
>= 5 cm24.9 22.5 17.2 2.4 0 0 0 0 0 0.04 3.5 18.8 89.3 LegendCC
>= 10 cm20.8 19.4 14.2 1.2 0 0 0 0 0 0 1.4 14.8 71.7 LegendCC
>= 20 cm14.7 14.3 10.2 0.42 0 0 0 0 0 0 0.44 6.5 46.5 LegendCC
Wind:
Speed (km/h)18.1 16.8 17.6 17.2 15.5 14.7 13.1 12.1 13.7 15.3 16.4 16.5 15.6 LegendAA
Most Frequent DirectionSW SW N SW SW SW SW SW S S SW SW SW LegendAA
Maximum Hourly Speed (km/h)80 93 103 93 80 72 64 63 69 72 92 80   Legend
Maximum Gust Speed (km/h)113 145 137 122 113 105 113 109 100 105 130 113   Legend
Direction of Maximum GustSW SW S W SW SW NE W SW SW SW W SW Legend
Days with Winds >= 52 km/h2.4 1.4 1.7 1.1 0.9 0.7 0.4 0.4 0.7 1.2 1.6 1.6 14.1 LegendCC
Days with Winds >= 63 km/h0.9 0.5 0.6 0.3 0.3 0.3 0.1 0.1 0.3 0.2 0.6 0.5 4.8 LegendCC
Degree Days:
Above 24 °C0 0 0 0 0.1 2 5.8 3.5 0.5 0 0 0 11.9 LegendCC
Above 18 °C0 0 0 0.4 9.5 40.4 88.6 64.9 13.6 0.5 0 0 217.9 LegendCC
Above 15 °C0 0 0 2.3 28.8 96.1 172.2 135.8 36.8 3.1 0.1 0 475.3 LegendCC
Above 10 °C0 0 0.7 14.6 108.5 232.7 326.3 285.3 127.3 26.4 2.9 0 1124.6 LegendCC
Above 5 °C0.2 0.8 6.2 63.3 245.9 382.2 481.3 440.3 267 100.9 19.6 0.9 2008.3 LegendCC
Above 0 °C5.1 7.7 39.7 172.1 400 532.2 636.3 595.3 416.7 233.9 78.5 11.6 3129.2 LegendCC
Below 0 °C333.1 260.7 118.5 7.6 0 0 0 0 0 0.9 47.5 222.1 990.4 LegendCC
Below 5 °C483.2 395.1 239.9 48.8 0.9 0 0 0 0.3 22.8 138.6 366.4 1695.9 LegendCC
Below 10 °C638 535.7 389.4 150.1 18.5 0.6 0 0 10.6 103.3 271.9 520.5 2638.5 LegendCC
Below 15 °C793 677 543.7 287.8 93.9 14 1 5.5 70.1 235 419.1 675.5 3815.5 LegendCC
Below 18 °C886 761.8 636.7 375.9 167.5 48.3 10.3 27.6 136.8 325.5 509 768.5 4653.9 LegendCC
Humidex:
Extreme Humidex15.4 15.5 23.4 34.7 38.7 47.2 46.2 46.9 41.8 34.5 24.9 18   Legend
Days with Humidex >= 300 0 0 0.1 2.3 9.2 17.5 14.1 3.9 0.1 0 0 47.1 LegendAA
Days with Humidex >= 350 0 0 0 0.6 2.7 6.5 4.3 0.8 0 0 0 14.9 LegendAA
Days with Humidex >= 400 0 0 0 0 0.4 1.1 0.7 0.1 0 0 0 2.3 LegendAA
Wind Chill:
Extreme Wind Chill-48.6 -45.8 -37.6 -25.7 -10 -1.7 4 0.8 -4.9 -13.5 -30.2 -45.4   Legend
Days with Wind Chill < -2017.9 14 5.6 0.2 0 0 0 0 0 0 0.4 10.7 48.8 LegendAA
Days with Wind Chill < -307.1 3.1 0.5 0 0 0 0 0 0 0 0 2.8 13.5 LegendAA
Days with Wind Chill < -400.6 0.1 0 0 0 0 0 0 0 0 0 0.1 0.8 LegendAA
Humidity:
Average Vapour Pressure (kPa)0.3 0.3 0.4 0.6 1 1.5 1.8 1.7 1.3 0.9 0.6 0.4 0.9 LegendAA
Average Relative Humidity - 0600LST (%)74.6 75.1 76.9 78.3 77.8 81.2 84.7 90 90.9 85.9 82.5 80.4 81.5 LegendAA
Average Relative Humidity - 1500LST (%)68.8 65.6 62.1 53.8 51.4 55.2 56.3 58.3 61.5 62.2 69.5 72.4 61.4 LegendAA
Pressure:
Average Station Pressure (kPa)101.3 101.4 101.2 101 101 100.9 101 101.2 101.3 101.4 101.3 101.4 101.2 LegendAA
Average Sea Level Pressure (kPa)101.6 101.7 101.6 101.4 101.4 101.3 101.3 101.5 101.6 101.7 101.6 101.7 101.5 LegendAA
Visibility (hours with):
< 1 km11.9 11.6 12.2 6.5 2.5 2.5 2.4 4.7 4.8 8.5 11.4 14.1 93.1 LegendCC
1 to 9 km174.4 135.4 110.6 73.5 60.3 79.3 81.9 94.4 91 81.4 122.5 155.2 1259.9 LegendCC
> 9 km557.7 531.5 621.2 639.9 681.2 638.2 659.7 644.9 624.2 654.1 586.1 574.8 7413.5 LegendCC
Cloud Amount (hours with):
0 to 2 tenths189.5 193.8 217.3 174.8 189.4 178.7 211.1 207.4 199.5 184.4 130.4 168.9 2245.3 LegendCC
3 to 7 tenths103.2 102.5 114.6 127.3 162.8 191.1 214.4 197.7 161.4 132.8 103.2 92.2 1703.1 LegendCC
8 to 10 tenths451.4 381.6 412.1 417.9 391.8 350.2 318.4 338.9 359.1 426.7 486.4 482.9 4817.6 LegendCC
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