Canadian Climate Normals 1981-2010 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
IQALUIT A
NUNAVUT
Latitude: 63°45'00.000" N Longitude: 68°33'00.000" W Elevation: 33.50 m
Climate ID: 2402590 WMO ID: 71909 TC ID: YFB
Temperature
1981 to 2010 Canadian Climate Normals station data
Temperature
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Daily Average (°C) -26.9 -27.5 -23.2 -14.2 -4.4 3.6 8.2 7.1 2.6 -3.7 -12.0 -21.3 -9.3 C
Standard Deviation 4.3 4.4 3.8 2.8 2.2 1.2 1.0 0.9 1.1 2.5 3.1 4.8 3.7 C
Daily Maximum (°C) -22.8 -23.3 -18.3 -9.4 -1.2 6.8 12.3 10.5 5.2 -1.0 -8.3 -17.0 -5.6 C
Daily Minimum (°C) -30.9 -31.7 -28.1 -18.9 -7.6 0.5 4.1 3.6 -0.1 -6.4 -15.8 -25.5 -13.1 C
Extreme Maximum (°C) 3.9 5.7 4.0 7.2 13.3 21.7 26.1 25.5 17.2 7.3 5.6 3.4
Date
(yyyy/dd)
1958/ 21 2006/ 27 2005/ 11 1981/ 23 1954/ 30 1955/ 22 2003/ 29 1991/ 08 1964/ 03 1981/ 05 1952/ 19 2001/ 29
Extreme Minimum (°C) -45.0 -45.6 -44.7 -34.2 -26.1 -10.2 -2.8 -2.5 -12.8 -27.1 -36.2 -43.4
Date
(yyyy/dd)
1953/ 24 1967/ 10 1991/ 01 1983/ 10 1949/ 02 1978/ 02 1961/ 03 1996/ 31 1965/ 30 1978/ 30 1978/ 18 1993/ 30
Precipitation
1981 to 2010 Canadian Climate Normals station data
Precipitation
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Rainfall (mm) 0.0 0.0 0.0 0.2 3.1 23.8 51.9 68.6 42.2 6.8 0.6 0.0 197.2 D
Snowfall (cm) 22 21 22 32 28 9 0 1 13 29 30 23 229 D
Precipitation (mm) 19.7 18.7 18.7 27.5 29.2 33.0 51.9 69.5 55.2 33.3 27.2 19.9 403.7 D
Average Snow Depth (cm) 22 25 26 31 22 3 0 0 0 5 15 19 14 D
Median Snow Depth (cm) 21 25 26 30 20 1 0 0 0 5 14 18 13 D
Snow Depth at Month-end (cm) 24 28 30 29 12 0 0 0 1 9 20 21 14 D
Extreme Daily Rainfall (mm) 2.5 2.0 0.5 5.1 11.7 28.4 52.8 48.2 40.4 23.3 11.9 0.5
Date
(yyyy/dd)
1958/ 21 1963/ 03 1958/ 09 1950/ 20 1986/ 14 1961/ 30 1968/ 14 1995/ 08 1979/ 01 1985/ 24 1955/ 01 1963/ 16
Extreme Daily Snowfall (cm) 31 32 25 22 30 19 4 6 21 21 28 22
Date
(yyyy/dd)
1958/ 18 1981/ 12 1973/ 08 1973/ 07 1965/ 09 1984/ 09 1970/ 08 1981/ 29 1946/ 26 1961/ 08 1960/ 24 1951/ 03
Extreme Daily Precipitation (mm) 30.7 27.4 23.9 23.9 27.4 68.0 52.8 48.2 40.4 33.5 27.9 21.8
Date
(yyyy/dd)
1958/ 18 1981/ 12 1953/ 29 1973/ 07 1965/ 09 2000/ 18 1968/ 14 1995/ 08 1979/ 01 2002/ 14 1960/ 24 1951/ 03
Extreme Snow Depth (cm) 57 74 69 86 86 43 1 3 15 33 52 48
Date
(yyyy/dd)
1977/ 15 1956/ 27 1963/ 01 1958/ 30 1958/ 01 1987/ 02 1978/ 01 1957/ 24 1992/ 29 1961/ 29 1989/ 27 1958/ 23
Days with Maximum Temperature
1981 to 2010 Canadian Climate Normals station data
Days with Maximum Temperature
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
<= 0 °C 30.9 28.0 30.6 28.0 17.9 0.4 0.0 0.0 1.2 16.8 28.0 30.3 212.2 C
> 0 °C 0.1 0.2 0.4 2.0 13.1 29.6 31.0 31.0 28.8 14.2 2.0 0.7 153.1 C
> 10 °C 0.0 0.0 0.0 0.0 0.0 5.2 21.5 15.9 1.9 0.0 0.0 0.0 44.4 C
> 20 °C 0.0 0.0 0.0 0.0 0.0 0.0 1.8 0.3 0.0 0.0 0.0 0.0 2.1 C
> 30 °C 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 C
> 35 °C 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 C
Days with Minimum Temperature
1981 to 2010 Canadian Climate Normals station data
Days with Minimum Temperature
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
> 0 °C 0.0 0.0 0.0 0.0 1.8 18.4 30.7 30.3 15.9 2.3 0.0 0.0 99.5 C
<= 2 °C 31.0 28.2 31.0 30.0 31.0 23.3 4.5 6.4 24.3 30.7 30.0 31.0 301.5 C
<= 0 °C 31.0 28.2 31.0 30.0 29.2 11.6 0.3 0.7 14.1 28.7 30.0 31.0 265.8 C
< -2 °C 31.0 28.2 31.0 29.6 24.8 3.6 0.0 0.0 5.5 23.7 29.6 31.0 237.7 C
< -10 °C 30.8 27.9 30.0 24.8 10.3 0.0 0.0 0.0 0.0 7.1 22.0 29.3 182.4 C
< -20 °C 28.5 25.9 26.1 15.4 0.4 0.0 0.0 0.0 0.0 0.6 9.9 23.7 130.6 C
< - 30 °C 19.1 17.8 14.8 1.3 0.0 0.0 0.0 0.0 0.0 0.0 0.6 9.3 62.8 C
Days with Rainfall
1981 to 2010 Canadian Climate Normals station data
Days with Rainfall
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 0.2 mm 0 0.06 0 0.28 1.4 7.4 12.7 16.7 10.6 2.2 0.28 0 51.6 D
>= 5 mm 0 0 0 0 0.24 1.6 3.3 4.5 2.4 0.24 0.06 0 12.4 D
>= 10 mm 0 0 0 0 0.12 0.56 1.3 1.6 1.3 0.18 0 0 5.1 D
>= 25 mm 0 0 0 0 0 0 0.25 0.25 0.13 0 0 0 0.63 D
Days With Snowfall
1981 to 2010 Canadian Climate Normals station data
Days With Snowfall
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 0.2 cm 12.2 11.6 12.7 13.4 12 3.9 0.13 0.50 7.2 13.7 13.8 12.3 113.5 D
>= 5 cm 1.2 0.83 1.2 2.1 1.7 0.50 0 0.06 0.63 2.1 1.7 1.2 13.2 D
>= 10 cm 0.33 0.39 0.33 0.61 0.29 0.31 0 0 0.38 0.24 0.44 0.22 3.5 D
>= 25 cm 0 0.06 0 0 0 0 0 0 0 0 0 0 0.06 D
Days with Precipitation
1981 to 2010 Canadian Climate Normals station data
Days with Precipitation
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 0.2 mm 11.4 11.1 11.8 13.1 12.0 10.9 12.5 15.3 15.0 14.0 13.2 12.2 152.2 C
>= 5 mm 1.1 0.8 0.7 1.7 1.8 2.9 3.1 4.2 3.1 2.2 1.4 0.8 23.6 C
>= 10 mm 0.2 0.2 0.2 0.4 0.4 1.1 1.1 1.6 1.8 0.6 0.3 0.2 7.9 C
>= 25 mm 0.0 0.0 0.0 0.0 0.0 0.1 0.2 0.4 0.1 0.1 0.0 0.0 0.9 C
Days with Snow Depth
1981 to 2010 Canadian Climate Normals station data
Days with Snow Depth
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 1 cm 30.9 28.2 31 30 29.1 10 0 0 2.7 24.6 30 31 247.5 D
>= 5 cm 30.9 28.2 31 29.9 27.3 5.5 0 0 0.33 14.2 29.1 31 227.5 D
>= 10 cm 30.5 28.2 30.9 27.9 23.2 3.1 0 0 0.05 5.9 23.4 30.4 203.5 D
>= 20 cm 20.7 20.1 22.8 24.8 15.8 1.1 0 0 0 0.93 5.1 13.3 124.6 D
Wind
1981 to 2010 Canadian Climate Normals station data
Wind
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Speed (km/h) 15.9 15.3 14.9 16.2 17.1 14.9 12.6 13.5 15.4 17.6 18.6 16.3 15.7 A
Most Frequent Direction NW NW NW NW NW SE SE SE SE NW NW NW NW A
Maximum Hourly Speed (km/h) 108 120 129 116 85 72 80 90 97 104 97 111
Date
(yyyy/dd)
1962/ 17 2007/ 04 1960/ 29 1962/ 05 1961/ 11 2000/ 23 1958/ 15 1961/ 23 1960/ 22 1986/ 12 1957/ 10 1982/ 04
Direction of Maximum Hourly Speed NE NE NW NW NW NE SE NW SE NW NE NW
Date
(yyyy/dd)
1962/ 17 2007/ 04 1960/ 29 1962/ 05 1961/ 11 2000/ 23 1958/ 15 1961/ 23 1960/ 22 1986/ 12 1957/ 10 1982/ 04
Maximum Gust Speed (km/h) 146 114 156 153 103 93 117 109 126 137 126 141
Date
(yyyy/dd)
1963/ 21 1962/ 07 1960/ 29 1962/ 05 1960/ 25 1994/ 16 1958/ 14 1961/ 22 1960/ 22 1986/ 12 1957/ 10 1982/ 04
Direction of Maximum Gust NE NW NW NW NW W E NW SE NW NE NW
Date
(yyyy/dd)
1963/ 21 1962/ 07 1960/ 29 1962/ 05 1960/ 25 1994/ 16 1958/ 14 1961/ 22 1960/ 22 1986/ 12 1957/ 10 1982/ 04
Degree Days
1981 to 2010 Canadian Climate Normals station data
Degree Days
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Above 24 °C 0 0 0 0 0 0 0 0 0 0 0 0 0 C
Above 18 °C 0 0 0 0 0 0 0 0 0 0 0 0 0 C
Above 15 °C 0 0 0 0 0 0 0.7 0.1 0 0 0 0 0.8 C
Above 10 °C 0 0 0 0 0 0.7 17.6 5.6 0 0 0 0 23.8 C
Above 5 °C 0 0 0 0 0 16.9 105.9 70 5.7 0 0 0 198.6 C
Above 0 °C 0 0.1 0 0.5 11.4 111.7 257.1 218.7 84.8 10.4 0.3 0 695.1 C
Below 0 °C 834.1 776.6 719.3 426.1 148.1 2.8 0 0 7.5 125.6 359.4 652.8 4052.3 C
Below 5 °C 989.1 917.6 874.3 575.6 291.7 58 3.9 6.3 78.4 270.2 509.1 807.8 5,382 C
Below 10 °C 1144.1 1058.8 1029.3 725.6 446.7 191.7 70.5 96.9 222.7 425.2 659.1 962.8 7033.4 C
Below 15 °C 1299.1 1,200 1184.3 875.6 601.7 341.1 208.6 246.5 372.7 580.2 809.1 1117.8 8836.6 C
Below 18 °C 1392.1 1284.8 1277.3 965.6 694.7 431.1 300.9 339.3 462.7 673.2 899.1 1210.8 9931.5 C
Bright Sunshine
1981 to 2010 Canadian Climate Normals station data
Bright Sunshine
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Total Hours 32.4 94.0 172.2 216.5 180.5 200.2 236.8 156.8 87.9 51.4 35.6 12.6 1476.8 D
Days with measureable 12.7 20.2 26.4 25.6 25.6 26.6 27.2 25.6 20.7 18.4 13.9 7.6 250.5 D
% of possible daylight hours 18.5 39.0 47.4 48.2 31.9 32.5 39.3 31.0 22.4 16.8 17.7 8.9 29.5 D
Extreme Daily 6.5 9.3 11.9 15.4 17.0 18.1 17.7 16.2 13.2 9.9 7.4 4.6
Date
(yyyy/dd)
1961/ 31 1980/ 29 1987/ 31 1988/ 30 1962/ 25 1987/ 26 1986/ 09 1991/ 03 1968/ 02 1991/ 01 1964/ 01 1962/ 01
Humidex
1981 to 2010 Canadian Climate Normals station data
Humidex
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Extreme Humidex 3.3 5.2 4.3 5.1 13.3 21.7 27.8 27.6 18.8 8.6 4.8 3.4
Date
(yyyy/dd)
1958/ 21 2006/ 27 2005/ 11 1995/ 24 1954/ 30 1955/ 22 2001/ 28 1991/ 08 1968/ 18 2010/ 10 1985/ 25 2001/ 29
Days with Humidex >= 30 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 A
Days with Humidex >= 35 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 A
Days with Humidex >= 40 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 A
Wind Chill
1981 to 2010 Canadian Climate Normals station data
Wind Chill
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Extreme Wind Chill -64 -66 -62 -53 -36 -19 -7 -9 -19 -43 -57 -60
Date
(yyyy/dd)
1983/ 22 1979/ 16 2004/ 11 1963/ 02 1993/ 08 1978/ 03 1972/ 03 1976/ 25 1997/ 29 1978/ 31 1963/ 27 1953/ 25
Days with Wind Chill < -20 30.3 27.7 28.9 21.7 4.9 0.0 0.0 0.0 0.0 4.2 18.2 27.2 163.2 A
Days with Wind Chill < -30 27.5 25.1 23.5 10.6 0.4 0.0 0.0 0.0 0.0 0.4 8.6 20.5 116.8 A
Days with Wind Chill < -40 18.9 17.7 12.7 2.5 0.0 0.0 0.0 0.0 0.0 0.0 1.4 10.6 63.8 A
Humidity
1981 to 2010 Canadian Climate Normals station data
Humidity
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Average Vapour Pressure (kPa) 0.1 0.1 0.1 0.2 0.4 0.6 0.8 0.8 0.6 0.4 0.2 0.1 0.4 A
Average Relative Humidity - 0600LST (%) 65.3 65.6 67.1 74.8 81.4 81.6 82.5 86.3 86.2 81.5 77.2 71.5 76.7 A
Average Relative Humidity - 1500LST (%) 65.3 64.6 65.4 72.8 76.4 72.6 69.4 72.6 75.6 78.1 76.6 71.5 71.7 A
Pressure
1981 to 2010 Canadian Climate Normals station data
Pressure
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Average Station Pressure (kPa) 100.3 100.6 101 101.3 101.1 100.7 100.5 100.4 100.4 100.6 100.4 100.4 100.6 A
Average Sea Level Pressure (kPa) 100.7 101.1 101.5 101.7 101.5 101.2 101 100.8 100.9 101.1 100.8 100.8 101.1 A
Visibility (hours with)
1981 to 2010 Canadian Climate Normals station data
Visibility (hours with)
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
< 1 km 21.6 22.5 19.3 11.5 7.1 3.8 7.9 6.9 7.6 5.5 11.3 13.8 138.7 C
1 to 9 km 155 149.8 142.7 111.4 91 40.4 39 47.9 64 91.6 111.1 143.8 1187.4 C
> 9 km 567.5 504.7 582.1 597.1 645.9 675.8 697.1 689.2 648.5 647 597.6 586.4 7438.9 C
Cloud Amount (hours with)
1981 to 2010 Canadian Climate Normals station data
Cloud Amount (hours with)
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
0 to 2 tenths 282 256.6 280.7 232.9 101.4 114.7 123 88.2 77 97.6 161 253.4 2068.6 C
3 to 7 tenths 144.2 139.6 130.4 113.8 105.2 124.6 182.2 148.9 105 96.8 101.6 140.9 1533.1 C
8 to 10 tenths 317.9 280.8 332.8 373.4 537.4 480.7 438.8 506.9 538 549.6 457.4 349.8 5163.3 C
Frost-Free
1981 to 2010 Canadian Climate Normals station data (Frost-Free)
Frost-FreeCode
Average Date of Last Spring Frost June 20 LegendCC
Average Date of First Fall Frost September 03 LegendCC
Average Length of Frost-Free Period 74 Days LegendCC
Probability of last temperature in spring of 0 °C or lower on or after indicated dates 10% 25% 33% 50% 66% 75% 90%
DateJul 12Jul 06Jul 02Jun 23Jun 18Jun 14Jun 13
Probability of first temperature in fall of 0 °C or lower on or after indicated dates 10% 25% 33% 50% 66% 75% 90%
DateAug 11Aug 23Aug 27Sep 01Sep 05Sep 09Sep 15
Probability of frost-free period equal to or less than indicated period (Days) 10% 25% 33% 50% 66% 75% 90%
Days43515965727891
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