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
SUDBURY A *
ONTARIO
Latitude: 46°37'32.000" N Longitude: 80°47'52.000" W Elevation: 348.40 m
Climate ID: 6068150 WMO ID: 71730 TC ID: YSB

* This station meets WMO standards for temperature and precipitation.

Temperature
1981 to 2010 Canadian Climate Normals station data
Temperature
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Daily Average (°C) -13.0 -10.8 -4.9 3.8 11.1 16.5 19.1 18.0 13.0 6.0 -1.0 -8.6 4.1 A
Standard Deviation 3.5 2.7 2.3 2.1 2.1 1.5 1.4 1.3 1.6 1.5 2.0 3.3 1.0 A
Daily Maximum (°C) -8.0 -5.5 0.4 9.2 17.0 22.2 24.8 23.4 18.1 10.3 2.6 -4.4 9.2 A
Daily Minimum (°C) -17.9 -16.0 -10.2 -1.7 5.2 10.7 13.4 12.4 7.8 1.7 -4.7 -12.7 -1.0 A
Extreme Maximum (°C) 7.6 9.4 17.3 29.8 33.9 35.7 38.3 36.7 31.9 27.2 18.5 14.4
Date
(yyyy/dd)
1995/ 14 2000/ 26 1999/ 31 1986/ 28 1986/ 29 1995/ 19 1975/ 31 1975/ 01 2002/ 08 2005/ 04 2008/ 06 1982/ 03
Extreme Minimum (°C) -39.3 -37.8 -31.7 -21.1 -6.7 -1.6 3.8 -1.1 -5.7 -10.0 -25.0 -36.0
Date
(yyyy/dd)
1982/ 10 1967/ 12 2003/ 03 1954/ 03 1957/ 16 1980/ 10 1992/ 21 1976/ 30 1993/ 30 1966/ 30 1958/ 30 1993/ 26
Precipitation
1981 to 2010 Canadian Climate Normals station data
Precipitation
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Rainfall (mm) 11.9 7.2 27.9 49.7 81.4 80.3 76.9 85.5 101.0 84.9 52.3 16.6 675.7 A
Snowfall (cm) 60 52 35 17 2 0 0 0 0 6 30 63 263 A
Precipitation (mm) 62.2 51.1 60.5 65.7 83.4 80.3 76.9 85.4 101.1 90.9 78.5 67.5 903.3 A
Average Snow Depth (cm) 30 38 27 2 0 0 0 0 0 0 3 16 10 A
Median Snow Depth (cm) 29 37 27 1 0 0 0 0 0 0 1 15 9 A
Snow Depth at Month-end (cm) 36 36 8 0 0 0 0 0 0 0 6 26 9 A
Extreme Daily Rainfall (mm) 50.8 19.3 47.0 49.9 62.8 86.9 91.8 77.7 112.0 55.6 37.1 42.9
Date
(yyyy/dd)
1980/ 11 1954/ 28 1963/ 26 1979/ 26 1990/ 17 1961/ 12 1977/ 24 1972/ 21 1970/ 03 1954/ 15 1957/ 14 1971/ 10
Extreme Daily Snowfall (cm) 37 38 39 34 10 0 0 0 3 25 27 27
Date
(yyyy/dd)
1978/ 26 1974/ 22 1992/ 10 1961/ 01 1957/ 15 1992/ 21 1954/ 01 1954/ 01 2001/ 25 1981/ 01 1999/ 03 1978/ 31
Extreme Daily Precipitation (mm) 51.6 37.8 47.0 49.9 62.8 86.9 91.8 77.7 112.0 55.6 44.0 42.9
Date
(yyyy/dd)
1980/ 11 1974/ 22 1963/ 26 1979/ 26 1990/ 17 1961/ 12 1977/ 24 1972/ 21 1970/ 03 1954/ 15 1995/ 11 1971/ 10
Extreme Snow Depth (cm) 94 119 145 81 9 0 0 0 0 15 38 69
Date
(yyyy/dd)
1962/ 16 1959/ 27 1959/ 16 1959/ 04 2004/ 03 1955/ 01 1955/ 01 1955/ 01 1955/ 01 1962/ 26 2000/ 21 1956/ 31
Days with Maximum Temperature
1981 to 2010 Canadian Climate Normals station data
Days with Maximum Temperature
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
<= 0 °C 26.9 23.0 14.4 2.0 0.0 0.0 0.0 0.0 0.0 0.4 9.9 23.2 99.7 A
> 0 °C 4.1 5.3 16.6 28.0 31.0 30.0 31.0 31.0 30.0 30.6 20.1 7.8 265.5 A
> 10 °C 0.0 0.0 1.9 12.6 27.2 29.8 31.0 31.0 28.4 15.3 3.1 0.2 180.5 A
> 20 °C 0.0 0.0 0.0 2.1 9.2 20.0 27.8 24.8 10.5 1.2 0.0 0.0 95.6 A
> 30 °C 0.0 0.0 0.0 0.0 0.4 1.7 2.7 1.4 0.2 0.0 0.0 0.0 6.4 A
> 35 °C 0.0 0.0 0.0 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.2 A
Days with Minimum Temperature
1981 to 2010 Canadian Climate Normals station data
Days with Minimum Temperature
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
> 0 °C 0.2 0.4 2.1 10.9 26.7 30.0 31.0 31.0 28.9 19.4 5.2 1.0 186.8 A
<= 2 °C 30.9 28.2 30.5 24.2 8.8 0.6 0.0 0.1 3.1 17.5 27.5 30.9 202.3 A
<= 0 °C 30.8 27.8 28.9 19.1 4.3 0.0 0.0 0.0 1.1 11.6 24.8 30.0 178.4 A
< -2 °C 30.1 27.1 26.5 13.3 1.2 0.0 0.0 0.0 0.3 5.4 19.1 28.3 151.2 A
< -10 °C 25.3 22.0 15.3 1.3 0.0 0.0 0.0 0.0 0.0 0.0 5.3 18.7 87.9 A
< -20 °C 13.0 9.1 3.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 6.0 31.5 A
< - 30 °C 2.5 0.3 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 3.3 A
Days with Rainfall
1981 to 2010 Canadian Climate Normals station data
Days with Rainfall
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 0.2 mm 2.8 2.1 4.5 8.4 12.3 12.7 12.2 12.1 13.1 14 9 4.3 107.6 A
>= 5 mm 0.80 0.63 1.9 3.3 5.7 4.9 4.8 4.7 5.5 5.5 3.5 1.3 42.5 A
>= 10 mm 0.40 0.17 1 1.5 2.6 2.7 2.7 2.7 3.6 3.1 1.8 0.57 22.9 A
>= 25 mm 0.03 0 0.17 0.33 0.43 0.53 0.57 0.87 0.93 0.45 0.30 0 4.6 A
Days With Snowfall
1981 to 2010 Canadian Climate Normals station data
Days With Snowfall
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 0.2 cm 17.2 13.4 9.6 4.9 0.87 0.03 0 0 0.10 2.9 9.7 16.3 74.9 A
>= 5 cm 3.9 3.5 2.3 1.2 0.10 0 0 0 0 0.34 2 4.1 17.5 A
>= 10 cm 1.3 1.1 0.70 0.33 0 0 0 0 0 0.07 0.53 1.7 5.7 A
>= 25 cm 0.10 0.10 0.10 0 0 0 0 0 0 0.03 0.07 0 0.40 A
Days with Precipitation
1981 to 2010 Canadian Climate Normals station data
Days with Precipitation
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 0.2 mm 17.7 13.8 11.8 11.2 12.7 12.7 12.2 12.1 13.1 15.2 16.0 18.2 166.9 A
>= 5 mm 4.1 3.3 3.9 4.1 5.7 4.9 4.8 4.7 5.5 5.8 5.2 4.9 57.0 A
>= 10 mm 1.5 1.2 1.7 2.1 2.7 2.7 2.7 2.7 3.6 3.4 2.4 1.7 28.4 A
>= 25 mm 0.1 0.1 0.4 0.4 0.4 0.5 0.6 0.9 0.9 0.5 0.4 0.0 5.2 A
Days with Snow Depth
1981 to 2010 Canadian Climate Normals station data
Days with Snow Depth
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 1 cm 30.8 28.1 27.9 9 0.27 0 0 0 0 0.83 11 27.6 135.6 A
>= 5 cm 29.9 28 25.6 5 0.07 0 0 0 0 0.17 5.8 24 118.5 A
>= 10 cm 28.2 26.8 22 2.2 0 0 0 0 0 0 3.2 19.5 102 A
>= 20 cm 20.5 22.7 17 0.60 0 0 0 0 0 0 1.1 10.7 72.5 A
Wind
1981 to 2010 Canadian Climate Normals station data
Wind
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Speed (km/h) 14.8 14.9 15.3 15.9 14.4 12.6 11.3 11.7 13.2 14.3 15.1 14.4 14.0 A
Most Frequent Direction N N N N N SW SW SW SW S S SW SW A
Maximum Hourly Speed (km/h) 82 89 87 90 72 87 77 64 71 84 89 80
Date
(yyyy/dd)
1971/ 26 1965/ 25 1973/ 17 1963/ 30 1956/ 14 1964/ 19 1968/ 21 1956/ 13 1963/ 12 1958/ 10 1956/ 21 1959/ 09
Direction of Maximum Hourly Speed N N N N SW SW S NW N W S W
Date
(yyyy/dd)
1971/ 26 1965/ 25 1973/ 17 1963/ 30 1956/ 14 1964/ 19 1968/ 21 1956/ 13 1963/ 12 1958/ 10 1956/ 21 1959/ 09
Maximum Gust Speed (km/h) 109 113 115 137 103 126 121 129 105 102 122 119
Date
(yyyy/dd)
1975/ 11 1965/ 25 2002/ 09 1964/ 14 1964/ 19 1964/ 19 1968/ 21 1965/ 06 1962/ 18 1985/ 04 1956/ 21 1971/ 10
Direction of Maximum Gust S N N S W SW S SW NW E S SW
Date
(yyyy/dd)
1975/ 11 1965/ 25 2002/ 09 1964/ 14 1964/ 19 1964/ 19 1968/ 21 1965/ 06 1962/ 18 1985/ 04 1956/ 21 1971/ 10
Days with Winds >= 52 km/h 0.9 0.9 1.2 0.9 0.7 0.5 0.4 0.2 0.7 1.1 1.3 1.0 9.9 A
Days with Winds >= 63 km/h 0.1 0.3 0.3 0.2 0.1 0.0 0.1 0.1 0.1 0.2 0.4 0.2 1.9 A
Degree Days
1981 to 2010 Canadian Climate Normals station data
Degree Days
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Above 24 °C 0 0 0 0 0.1 0.7 2.9 1.6 0.1 0 0 0 5.4 A
Above 18 °C 0 0 0 0.5 6.2 30.1 59.1 41.6 8.5 0.3 0 0 146.2 A
Above 15 °C 0 0 0 2 21 74.3 132 102.3 28.5 1.6 0 0 361.6 A
Above 10 °C 0 0 0 12 79.4 197.1 282.7 246.7 109.1 16 0.5 0 943.6 A
Above 5 °C 0 0 3.1 46.8 194.7 344.2 437.7 401.4 240.4 71.6 8.6 0.4 1748.8 A
Above 0 °C 1.3 2.7 24.1 135.2 344.8 494.1 592.7 556.4 388.8 190.5 49.2 6.3 2786.1 A
Below 0 °C 406 307.5 175.6 22.2 0.1 0 0 0 0 3.7 79.2 271.7 1265.9 A
Below 5 °C 559.7 446 309.6 83.8 4.9 0.1 0 0 1.7 39.7 188.6 420.8 2054.8 A
Below 10 °C 714.7 587.1 461.5 199 44.7 3 0 0.4 20.4 139.1 330.5 575.4 3075.7 A
Below 15 °C 869.7 728.3 616.5 339 141.2 30.2 4.3 10.9 89.7 279.7 480 730.4 4319.9 A
Below 18 °C 962.7 813 709.5 427.5 219.4 76 24.5 43.3 159.7 371.5 570 823.4 5200.3 A
Bright Sunshine
1981 to 2010 Canadian Climate Normals station data
Bright Sunshine
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Total Hours 86.3 118.2 161.0 195.6 228.4 246.9 274.7 245.2 162.1 121.4 69.8 63.5 1973.2 C
Days with measureable 20.0 21.0 25.0 25.4 27.1 28.0 30.2 29.4 26.0 25.3 18.1 17.1 292.6 C
% of possible daylight hours 30.9 40.7 43.7 48.1 49.1 52.2 57.4 55.8 42.9 35.8 24.6 23.7 42.1 C
Extreme Daily 9.2 10.6 11.9 13.8 15.0 15.4 15.4 14.5 12.7 11.8 9.6 8.9
Date
(yyyy/dd)
2008/ 31 1986/ 26 1997/ 31 1974/ 26 1973/ 30 1979/ 19 1979/ 05 1985/ 01 1989/ 02 1988/ 10 1977/ 05 1980/ 21
Humidex
1981 to 2010 Canadian Climate Normals station data
Humidex
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Extreme Humidex 7.1 10.0 16.7 30.7 39.4 41.4 42.9 49.2 38.7 34.3 20.0 17.7
Date
(yyyy/dd)
1996/ 18 2000/ 26 1999/ 31 1990/ 26 2010/ 26 1995/ 19 1975/ 31 1955/ 19 1973/ 02 2005/ 04 1956/ 02 1982/ 03
Days with Humidex >= 30 0.0 0.0 0.0 0.1 1.0 4.9 8.9 6.5 1.6 0.1 0.0 0.0 23.1 A
Days with Humidex >= 35 0.0 0.0 0.0 0.0 0.2 1.0 2.3 1.6 0.2 0.0 0.0 0.0 5.2 A
Days with Humidex >= 40 0.0 0.0 0.0 0.0 0.0 0.1 0.2 0.1 0.0 0.0 0.0 0.0 0.4 A
Wind Chill
1981 to 2010 Canadian Climate Normals station data
Wind Chill
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Extreme Wind Chill -53 -50 -43 -32 -15 -9 0 -5 -9 -17 -36 -51
Date
(yyyy/dd)
1982/ 10 1995/ 05 1962/ 01 1964/ 03 1966/ 09 1972/ 10 1954/ 01 1976/ 30 1993/ 30 1955/ 24 1958/ 30 1993/ 26
Days with Wind Chill < -20 22.0 18.9 10.5 0.7 0.0 0.0 0.0 0.0 0.0 0.0 2.1 14.0 68.2 A
Days with Wind Chill < -30 10.5 6.7 2.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.1 23.6 A
Days with Wind Chill < -40 2.1 0.5 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 3.1 A
Humidity
1981 to 2010 Canadian Climate Normals station data
Humidity
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Average Vapour Pressure (kPa) 0.2 0.2 0.3 0.5 0.8 1.3 1.5 1.5 1.2 0.8 0.5 0.3 0.8 A
Average Relative Humidity - 0600LST (%) 79.4 77.4 75 74.5 77.1 82.4 85.6 89.6 91.7 88.4 87.2 84.1 82.7 A
Average Relative Humidity - 1500LST (%) 71.3 64.3 56.4 49.9 48.5 52 52.6 55.1 60.8 64.7 73.1 76 60.4 A
Pressure
1981 to 2010 Canadian Climate Normals station data
Pressure
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Average Station Pressure (kPa) 97.2 97.4 97.4 97.3 97.3 97.3 97.3 97.5 97.5 97.4 97.3 97.3 97.4 A
Average Sea Level Pressure (kPa) 101.6 101.7 101.7 101.5 101.5 101.4 101.4 101.6 101.7 101.7 101.6 101.6 101.6 A
Visibility (hours with)
1981 to 2010 Canadian Climate Normals station data
Visibility (hours with)
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
< 1 km 29.5 26.9 39.7 21.5 14.1 10.4 7.4 13.5 20.8 24.5 44.3 37.6 290.2 C
1 to 9 km 135.4 101.3 79.3 60.2 50.5 49.5 46.9 62.8 73.1 69 97.6 139.1 964.6 C
> 9 km 579 549.3 625.1 638.3 679.4 660 689.8 667.7 626.1 650.5 578.1 567.4 7510.7 C
Cloud Amount (hours with)
1981 to 2010 Canadian Climate Normals station data
Cloud Amount (hours with)
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
0 to 2 tenths 193.5 200.1 242.1 201.4 195.5 186.9 214.7 232.1 193.9 150.5 116.5 140.3 2267.2 C
3 to 7 tenths 96.4 102.8 109.7 131 160.4 189.8 216.3 200.2 163 135.4 97.9 100.1 1,703 C
8 to 10 tenths 454.1 374.6 392.2 387.7 388.2 343.4 313 311.7 363.1 458.1 505.6 503.6 4795.3 C
Frost-Free
1981 to 2010 Canadian Climate Normals station data (Frost-Free)
Frost-FreeCode
Average Date of Last Spring Frost May 17 LegendAA
Average Date of First Fall Frost October 01 LegendAA
Average Length of Frost-Free Period 136 Days LegendAA
Probability of last temperature in spring of 0 °C or lower on or after indicated dates 10% 25% 33% 50% 66% 75% 90%
DateMay 31May 26May 21May 17May 11May 08May 04
Probability of first temperature in fall of 0 °C or lower on or after indicated dates 10% 25% 33% 50% 66% 75% 90%
DateSep 14Sep 20Sep 23Sep 27Oct 01Oct 06Oct 12
Probability of frost-free period equal to or less than indicated period (Days) 10% 25% 33% 50% 66% 75% 90%
Days110124125132135144155
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