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
HALIFAX STANFIELD INT'L A *
NOVA SCOTIA
Latitude: 44°52'48.060" N Longitude: 63°30'00.050" W Elevation: 145.40 m
Climate ID: 8202250 WMO ID: 71395 TC ID: YHZ

* This station meets WMO standards for temperature and precipitation.

Temperature
1981 to 2010 Canadian Climate Normals station data
Temperature
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Daily Average (°C) -5.9 -5.2 -1.3 4.4 10.0 15.1 18.8 18.7 14.6 8.7 3.5 -2.4 6.6 A
Standard Deviation 2.2 2.0 1.6 1.2 1.3 1.1 1.1 1.0 1.3 1.3 1.3 2.2 0.8 A
Daily Maximum (°C) -1.3 -0.6 3.1 9.1 15.3 20.4 23.8 23.6 19.4 13.1 7.3 1.7 11.3 A
Daily Minimum (°C) -10.4 -9.7 -5.7 -0.3 4.6 9.7 13.7 13.7 9.7 4.2 -0.4 -6.4 1.9 A
Extreme Maximum (°C) 14.8 17.5 25.6 29.5 32.8 33.4 33.9 35.0 34.2 25.8 19.4 16.3
Date
(yyyy/dd)
1999/ 25 1994/ 20 1998/ 31 2009/ 28 1977/ 23 2001/ 27 1963/ 26 1995/ 01 2010/ 01 1990/ 07 1961/ 05 2008/ 12
Extreme Minimum (°C) -28.5 -27.3 -22.4 -12.8 -4.4 0.6 6.1 4.4 -0.8 -6.7 -13.1 -23.3
Date
(yyyy/dd)
1993/ 31 1993/ 07 1989/ 07 1995/ 05 1966/ 08 1975/ 10 1970/ 02 1965/ 30 1989/ 28 1974/ 22 1978/ 27 1980/ 25
Precipitation
1981 to 2010 Canadian Climate Normals station data
Precipitation
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Rainfall (mm) 83.5 65.0 86.9 98.2 109.8 96.2 95.5 93.5 102.0 124.6 139.1 101.8 1196.1 A
Snowfall (cm) 58 45 37 16 2 0 0 0 0 0 17 45 221 A
Precipitation (mm) 134.3 105.8 120.1 114.5 111.9 96.2 95.5 93.5 102.0 124.9 154.2 143.3 1396.2 A
Average Snow Depth (cm) 11 13 6 1 0 0 0 0 0 0 1 4 3 A
Median Snow Depth (cm) 9 11 5 0 0 0 0 0 0 0 0 2 2 A
Snow Depth at Month-end (cm) 13 10 1 0 0 0 0 0 0 0 1 9 3 A
Extreme Daily Rainfall (mm) 94.1 84.9 89.2 76.7 79.5 64.0 71.1 218.2 84.3 66.8 87.8 98.8
Date
(yyyy/dd)
1978/ 14 1996/ 17 1972/ 23 1962/ 08 2005/ 22 1972/ 10 1981/ 21 1971/ 15 2002/ 11 1967/ 10 2004/ 25 1975/ 10
Extreme Daily Snowfall (cm) 44 66 29 28 27 0 0 0 0 39 28 48
Date
(yyyy/dd)
1961/ 04 2004/ 19 1984/ 09 1963/ 11 1972/ 10 1953/ 01 1953/ 01 1953/ 01 1953/ 01 1974/ 20 1986/ 19 1970/ 24
Extreme Daily Precipitation (mm) 100.1 84.9 90.2 76.7 79.5 64.0 71.1 218.2 84.3 66.8 87.8 98.8
Date
(yyyy/dd)
1978/ 14 1996/ 17 1972/ 23 1962/ 08 2005/ 22 1972/ 10 1981/ 21 1971/ 15 2002/ 11 1967/ 10 2004/ 25 1975/ 10
Extreme Snow Depth (cm) 94 81 53 38 18 0 0 0 0 25 33 71
Date
(yyyy/dd)
1971/ 24 2004/ 23 1967/ 25 1972/ 10 1972/ 11 1961/ 01 1960/ 01 1960/ 01 1960/ 01 1974/ 21 2004/ 15 1970/ 27
Days with Maximum Temperature
1981 to 2010 Canadian Climate Normals station data
Days with Maximum Temperature
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
<= 0 °C 17.7 15.0 8.4 0.3 0.0 0.0 0.0 0.0 0.0 0.0 2.3 11.5 55.2 A
> 0 °C 13.3 13.2 22.6 29.7 31.0 30.0 31.0 31.0 30.0 31.0 27.7 19.6 310.1 A
> 10 °C 1.1 0.7 2.5 12.3 26.4 29.6 31.0 31.0 29.8 23.1 9.7 2.7 200.0 A
> 20 °C 0.0 0.0 0.0 0.6 5.6 16.3 26.0 26.0 12.3 1.7 0.0 0.0 88.5 A
> 30 °C 0.0 0.0 0.0 0.0 0.1 0.5 0.9 1.1 0.3 0.0 0.0 0.0 2.8 A
> 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 A
Days with Minimum Temperature
1981 to 2010 Canadian Climate Normals station data
Days with Minimum Temperature
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
> 0 °C 1.3 1.3 3.0 12.8 29.0 30.0 31.0 31.0 30.0 26.4 12.9 3.8 212.5 A
<= 2 °C 30.5 27.8 30.0 24.1 6.8 0.0 0.0 0.0 0.2 10.5 21.8 28.9 180.7 A
<= 0 °C 29.7 26.9 28.0 17.2 2.0 0.0 0.0 0.0 0.0 4.6 17.2 27.2 152.7 A
< -2 °C 27.2 24.7 23.2 7.6 0.2 0.0 0.0 0.0 0.0 0.8 11.7 23.2 118.6 A
< -10 °C 16.0 13.7 5.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.5 8.6 44.7 A
< -20 °C 1.8 0.8 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 3.0 A
< - 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 A
Days with Rainfall
1981 to 2010 Canadian Climate Normals station data
Days with Rainfall
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 0.2 mm 8 6.1 8.6 12.1 13.5 12.9 11.3 11 10.2 12.1 12.8 9.8 128.4 A
>= 5 mm 4.2 3 4.4 5.7 5.9 5.4 4.8 4.8 4.7 6 6.9 5.2 61 A
>= 10 mm 3.1 2.3 3.1 3.2 3.3 3.4 3.3 3 3.3 3.8 4.6 3.4 39.7 A
>= 25 mm 1 0.79 1 0.72 0.93 0.81 0.96 1 1.5 1.5 1.6 1.1 12.9 A
Days With Snowfall
1981 to 2010 Canadian Climate Normals station data
Days With Snowfall
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 0.2 cm 14.6 12 9.6 5.2 0.61 0 0 0 0 0.14 3.9 11.7 57.7 A
>= 5 cm 3.7 2.6 2.6 0.90 0.18 0 0 0 0 0.04 0.89 3 13.9 A
>= 10 cm 1.5 1.2 1.2 0.21 0.07 0 0 0 0 0 0.57 1.3 6.2 A
>= 25 cm 0.21 0.17 0.10 0.07 0 0 0 0 0 0 0.07 0.17 0.79 A
Days with Precipitation
1981 to 2010 Canadian Climate Normals station data
Days with Precipitation
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 0.2 mm 18.7 15.2 15.1 14.8 13.7 12.9 11.3 11.0 10.2 12.1 15.1 17.4 167.4 A
>= 5 mm 7.3 5.1 6.3 6.8 6.0 5.4 4.8 4.8 4.7 6.1 7.5 7.8 72.6 A
>= 10 mm 4.7 3.6 4.3 3.8 3.4 3.4 3.3 3.0 3.3 3.9 5.1 4.6 46.3 A
>= 25 mm 1.5 1.1 1.2 0.8 1.0 0.8 1.0 1.0 1.5 1.5 1.7 1.3 14.3 A
Days with Snow Depth
1981 to 2010 Canadian Climate Normals station data
Days with Snow Depth
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 1 cm 22.6 22.2 18.7 4.6 0.21 0 0 0 0 0 3.6 14.1 86 A
>= 5 cm 17.2 17.5 12.6 1.8 0.14 0 0 0 0 0 2 9.1 60.4 A
>= 10 cm 11.6 13.4 7.7 0.61 0.07 0 0 0 0 0 1.6 5.4 40.4 A
>= 20 cm 6.7 7.3 3.2 0.21 0 0 0 0 0 0 0.64 2 20 A
Wind
1981 to 2010 Canadian Climate Normals station data
Wind
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Speed (km/h) 17.7 18.3 18.5 18.3 16.5 15.2 14.2 13.2 14.4 16.0 17.5 18.3 16.5 A
Most Frequent Direction NW NW N N S S S S S W NW NW S A
Maximum Hourly Speed (km/h) 80 89 77 71 64 65 79 65 85 68 93 85
Date
(yyyy/dd)
1973/ 29 1969/ 10 1976/ 17 1975/ 04 1961/ 26 2008/ 13 1975/ 28 2009/ 30 2003/ 29 1972/ 07 2007/ 04 1976/ 27
Direction of Maximum Hourly Speed S E S E S N SE S SE SE SE E
Date
(yyyy/dd)
1973/ 29 1969/ 10 1976/ 17 1975/ 04 1961/ 26 2008/ 13 1975/ 28 2009/ 30 2003/ 29 1972/ 07 2007/ 04 1976/ 27
Maximum Gust Speed (km/h) 117 127 126 115 92 97 130 91 120 109 113 132
Date
(yyyy/dd)
1978/ 09 1976/ 02 1976/ 17 1982/ 04 1961/ 28 1973/ 17 1975/ 28 2009/ 30 2010/ 04 1972/ 07 2007/ 04 1976/ 26
Direction of Maximum Gust SE SW SW SE SE N SE S SE SE SE SE
Date
(yyyy/dd)
1978/ 09 1976/ 02 1976/ 17 1982/ 04 1961/ 28 1973/ 17 1975/ 28 2009/ 30 2010/ 04 1972/ 07 2007/ 04 1976/ 26
Days with Winds >= 52 km/h 2.4 1.9 1.9 1.3 0.4 0.3 0.2 0.2 0.5 0.6 1.7 2.2 13.3 B
Days with Winds >= 63 km/h 0.7 0.5 0.2 0.2 0.0 0.0 0.0 0.0 0.0 0.1 0.3 0.7 2.9 B
Degree Days
1981 to 2010 Canadian Climate Normals station data
Degree Days
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Above 24 °C 0 0 0 0 0 0.1 0.4 0.7 0.3 0 0 0 1.5 A
Above 18 °C 0 0 0 0 0.4 11.2 46.6 46.9 8.8 0.5 0 0 114.3 A
Above 15 °C 0 0 0 0.1 4.6 42.8 120.6 118.4 35 3.1 0.1 0 324.6 A
Above 10 °C 0.1 0 0.2 3.5 44.3 154.9 272.5 269.5 140.7 31.1 5.1 0.1 921.9 A
Above 5 °C 1.6 1.3 4.3 34.6 158.3 301.9 427.5 424.5 286.9 122.6 37.4 5.9 1806.8 A
Above 0 °C 15.5 14 39.3 136.5 310.2 451.9 582.5 579.5 436.9 269.8 120.9 37 2,994 A
Below 0 °C 197.2 159.8 81.1 4.2 0 0 0 0 0 0 16.9 109 568.3 A
Below 5 °C 338.3 288.3 201.1 52.3 3.1 0 0 0 0 7.8 83.4 232.9 1207.3 A
Below 10 °C 491.7 428.2 352 171.2 44.2 3 0 0 3.8 71.3 201.1 382.2 2148.6 A
Below 15 °C 646.6 569.4 506.8 317.8 159.4 40.9 3.1 3.9 48.1 198.2 346.1 537 3377.5 A
Below 18 °C 739.6 654.1 599.8 407.8 248.2 99.3 22.1 25.4 111.9 288.6 436 630 4262.9 A
Humidex
1981 to 2010 Canadian Climate Normals station data
Humidex
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Extreme Humidex 18.4 18.3 27.7 32.1 36.0 40.2 42.4 41.9 42.1 31.9 25.4 20.4
Date
(yyyy/dd)
1999/ 25 1976/ 02 1998/ 31 2009/ 28 1977/ 23 2005/ 25 1977/ 21 1988/ 05 2010/ 01 2010/ 01 1982/ 05 2008/ 12
Days with Humidex >= 30 0.0 0.0 0.0 0.0 0.3 2.7 10.0 9.4 1.9 0.1 0.0 0.0 24.5 A
Days with Humidex >= 35 0.0 0.0 0.0 0.0 0.0 0.5 2.0 2.0 0.3 0.0 0.0 0.0 4.8 A
Days with Humidex >= 40 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.1 0.0 0.0 0.0 0.3 A
Wind Chill
1981 to 2010 Canadian Climate Normals station data
Wind Chill
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Extreme Wind Chill -40 -41 -34 -24 -11 0 0 0 -3 -10 -24 -36
Date
(yyyy/dd)
1982/ 18 1967/ 13 1989/ 07 1995/ 05 1972/ 11 1961/ 01 1961/ 01 1961/ 01 1980/ 29 1969/ 24 1978/ 27 1980/ 25
Days with Wind Chill < -20 10.7 8.7 3.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.1 4.0 26.7 A
Days with Wind Chill < -30 1.6 0.6 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 2.6 A
Days with Wind Chill < -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
Humidity
1981 to 2010 Canadian Climate Normals station data
Humidity
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Average Vapour Pressure (kPa) 0.4 0.4 0.5 0.6 0.9 1.3 1.6 1.7 1.4 1 0.7 0.5 0.9 A
Average Relative Humidity - 0600LST (%) 83.8 82.8 83.8 85.5 87 88.2 89.5 90.9 91.6 89.9 87 85.6 87.1 A
Average Relative Humidity - 1500LST (%) 73 67.4 64.5 62.9 61.9 62.6 63 62.9 64.4 66.9 73.2 75.5 66.5 A
Pressure
1981 to 2010 Canadian Climate Normals station data
Pressure
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Average Station Pressure (kPa) 99.5 99.5 99.5 99.6 99.7 99.6 99.7 99.8 99.9 99.9 99.8 99.5 99.7 A
Average Sea Level Pressure (kPa) 101.3 101.3 101.4 101.3 101.5 101.4 101.4 101.6 101.7 101.6 101.5 101.3 101.4 A
Visibility (hours with)
1981 to 2010 Canadian Climate Normals station data
Visibility (hours with)
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
< 1 km 41.1 36.2 47.2 56.5 70.1 69.8 77.4 57.5 30.9 25.9 37.1 36.1 585.7 C
1 to 9 km 157.5 128.6 140.5 142.5 112.8 115.9 128.3 126.7 107.3 105.7 135 146.3 1547.2 C
> 9 km 545.4 512.5 556.3 521 561.1 534.3 538.3 559.9 581.8 612.4 547.9 561.7 6632.4 C
Cloud Amount (hours with)
1981 to 2010 Canadian Climate Normals station data
Cloud Amount (hours with)
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
0 to 2 tenths 163.2 163.3 181 143.9 128.4 114 126.1 169.8 200.5 191.2 130.1 149 1860.5 C
3 to 7 tenths 133.4 120.5 114.2 114 141.6 164.2 192.7 184.1 158 151.5 122.2 125.7 1722.3 C
8 to 10 tenths 447.4 393.5 448.7 462.1 474 441.9 425.2 390.1 361.5 401.2 467.6 469.3 5182.6 C
Frost-Free
1981 to 2010 Canadian Climate Normals station data (Frost-Free)
Frost-FreeCode
Average Date of Last Spring Frost May 07 LegendCC
Average Date of First Fall Frost October 18 LegendCC
Average Length of Frost-Free Period 163 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%
DateMay 26May 17May 13May 09May 02Apr 30Apr 26
Probability of first temperature in fall of 0 °C or lower on or after indicated dates 10% 25% 33% 50% 66% 75% 90%
DateOct 03Oct 10Oct 12Oct 17Oct 20Oct 22Oct 31
Probability of frost-free period equal to or less than indicated period (Days) 10% 25% 33% 50% 66% 75% 90%
Days140149151159168171177
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