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
NORTH BAY A *
ONTARIO
Latitude: 46°21'49.000" N Longitude: 79°25'22.000" W Elevation: 370.30 m
Climate ID: 6085700 WMO ID: 71731 TC ID: YYB

* This station meets WMO standards for temperature and precipitation.

Temperature
1981 to 2010 Canadian Climate Normals station data
Temperature
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Daily Average (°C) -12.5 -10.4 -4.5 4.0 11.2 16.3 18.9 17.7 13.0 6.2 -0.8 -8.3 4.2 A
Standard Deviation 3.5 2.8 2.2 2.1 2.1 1.5 1.2 1.4 1.6 1.5 2.0 3.2 0.9 A
Daily Maximum (°C) -7.6 -5.3 0.6 9.1 16.7 21.6 24.0 22.7 17.7 10.3 2.8 -4.1 9.0 A
Daily Minimum (°C) -17.4 -15.4 -9.6 -1.2 5.6 11.0 13.7 12.7 8.2 2.0 -4.4 -12.3 -0.6 A
Extreme Maximum (°C) 12.2 12.5 23.9 29.9 32.0 33.3 35.4 33.5 33.3 26.7 20.0 14.4
Date
(yyyy/dd)
1950/ 25 2000/ 26 1945/ 26 1990/ 28 2010/ 26 1944/ 28 1988/ 08 2001/ 08 1953/ 03 1946/ 06 1961/ 03 1982/ 03
Extreme Minimum (°C) -40.0 -39.4 -36.7 -21.1 -8.3 -2.1 2.6 0.0 -4.5 -11.7 -23.9 -36.8
Date
(yyyy/dd)
1942/ 10 1943/ 15 1950/ 03 1954/ 04 1966/ 07 1986/ 02 1992/ 21 1976/ 30 1989/ 27 1969/ 23 1958/ 30 2004/ 20
Precipitation
1981 to 2010 Canadian Climate Normals station data
Precipitation
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Rainfall (mm) 19.3 11.8 31.8 56.3 93.1 98.0 99.4 90.6 115.2 99.1 65.5 22.7 802.8 A
Snowfall (cm) 65 59 39 17 3 0 0 0 0 8 38 70 300 A
Precipitation (mm) 68.9 57.1 64.6 71.6 96.3 98.3 99.4 90.6 115.4 106.6 98.1 77.8 1044.6 A
Average Snow Depth (cm) 33 46 37 5 0 0 0 0 0 0 3 17 12 A
Median Snow Depth (cm) 34 46 36 3 0 0 0 0 0 0 1 16 11 A
Snow Depth at Month-end (cm) 42 44 18 0 0 0 0 0 0 0 7 26 11 A
Extreme Daily Rainfall (mm) 52.7 21.8 45.7 62.2 50.4 63.8 93.2 96.3 71.0 75.2 53.2 38.4
Date
(yyyy/dd)
1997/ 22 2009/ 27 1942/ 08 1939/ 01 2009/ 28 1957/ 29 1990/ 30 1952/ 31 1999/ 28 1983/ 03 1995/ 11 1961/ 04
Extreme Daily Snowfall (cm) 34 28 48 30 19 4 0 0 5 26 23 26
Date
(yyyy/dd)
2006/ 29 2006/ 05 1943/ 10 1969/ 01 2004/ 02 2007/ 05 1939/ 01 1939/ 01 1956/ 30 1962/ 30 2007/ 24 2009/ 09
Extreme Daily Precipitation (mm) 56.7 37.8 48.3 73.7 50.4 63.8 93.2 96.3 71.0 75.2 54.8 38.4
Date
(yyyy/dd)
1997/ 22 2002/ 20 1943/ 10 1939/ 01 2009/ 28 1957/ 29 1990/ 30 1952/ 31 1999/ 28 1983/ 03 1995/ 11 1961/ 04
Extreme Snow Depth (cm) 98 120 117 81 10 0 0 0 20 23 40 84
Date
(yyyy/dd)
1979/ 25 1997/ 28 1997/ 01 1972/ 04 1974/ 07 1955/ 01 1955/ 01 1955/ 01 1989/ 02 1962/ 31 1990/ 12 1989/ 28
Days with Maximum Temperature
1981 to 2010 Canadian Climate Normals station data
Days with Maximum Temperature
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
<= 0 °C 26.7 22.6 14.0 2.2 0.0 0.0 0.0 0.0 0.0 0.5 9.5 23.1 98.6 A
> 0 °C 4.3 5.7 17.0 27.8 31.0 30.0 31.0 31.0 30.0 30.5 20.5 7.9 266.6 A
> 10 °C 0.1 0.1 2.2 12.5 27.1 29.7 31.0 31.0 28.3 15.3 3.4 0.3 180.9 A
> 20 °C 0.0 0.0 0.0 1.9 9.0 19.1 26.7 23.7 9.5 1.5 0.0 0.0 91.3 A
> 30 °C 0.0 0.0 0.0 0.0 0.1 0.7 1.2 0.7 0.1 0.0 0.0 0.0 2.8 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 0.1 A
Days with Minimum Temperature
1981 to 2010 Canadian Climate Normals station data
Days with Minimum Temperature
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
> 0 °C 0.3 0.7 2.6 12.2 26.9 30.0 31.0 31.0 28.9 19.0 6.0 1.2 189.8 A
<= 2 °C 30.9 28.0 29.9 22.8 8.0 0.7 0.0 0.0 3.1 17.5 27.2 30.7 199.0 A
<= 0 °C 30.7 27.5 28.4 17.8 4.1 0.0 0.0 0.0 1.1 12.0 24.0 29.8 175.5 A
< -2 °C 29.9 26.6 25.6 12.3 1.2 0.0 0.0 0.0 0.3 5.4 18.6 27.9 147.8 A
< -10 °C 24.4 21.4 14.5 1.5 0.0 0.0 0.0 0.0 0.0 0.0 5.5 18.3 85.5 A
< -20 °C 12.3 8.3 2.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 5.9 29.5 A
< - 30 °C 2.2 0.4 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 3.0 A
Days with Rainfall
1981 to 2010 Canadian Climate Normals station data
Days with Rainfall
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 0.2 mm 3.9 2.2 5.2 9.6 13.8 14 12.6 11.9 13.9 13.9 10.2 4.6 115.7 A
>= 5 mm 1.3 0.93 2.1 4 6.1 5.7 5.4 5.5 6.6 6.7 3.9 1.5 49.7 A
>= 10 mm 0.67 0.47 1.1 1.9 3.2 3.4 3.2 2.8 4.1 3.4 2.1 0.77 27.1 A
>= 25 mm 0.07 0 0.13 0.27 0.60 0.83 0.97 0.83 1 0.53 0.37 0.10 5.7 A
Days With Snowfall
1981 to 2010 Canadian Climate Normals station data
Days With Snowfall
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 0.2 cm 17.7 14.8 10.6 5.8 1 0.03 0 0 0.17 3 11.4 18.2 82.7 A
>= 5 cm 4.8 3.9 3 1.2 0.17 0 0 0 0 0.33 2.6 5.4 21.3 A
>= 10 cm 1.1 1.5 1 0.23 0.03 0 0 0 0 0.17 0.70 1.4 6.1 A
>= 25 cm 0.07 0.10 0.03 0 0 0 0 0 0 0 0 0.03 0.23 A
Days with Precipitation
1981 to 2010 Canadian Climate Normals station data
Days with Precipitation
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 0.2 mm 18.6 15.3 13.4 13.0 14.1 14.0 12.6 11.9 14.0 15.5 17.7 20.1 180.3 A
>= 5 mm 4.4 3.9 4.1 5.0 6.3 5.7 5.4 5.5 6.6 7.1 6.0 5.4 65.3 A
>= 10 mm 1.6 1.4 2.0 2.2 3.3 3.4 3.2 2.8 4.1 3.6 3.0 1.8 32.5 A
>= 25 mm 0.1 0.1 0.2 0.3 0.6 0.8 1.0 0.8 1.0 0.5 0.5 0.2 6.2 A
Days with Snow Depth
1981 to 2010 Canadian Climate Normals station data
Days with Snow Depth
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
>= 1 cm 30.6 28.2 29 10.7 0.30 0 0 0 0.03 1.2 13.3 27.8 141.3 A
>= 5 cm 30.4 28.1 27.7 7 0.10 0 0 0 0.03 0.27 7.4 24.6 125.6 A
>= 10 cm 29.2 27.8 26.1 5.4 0 0 0 0 0.03 0.07 3.2 20.4 112.2 A
>= 20 cm 24.1 25.2 21.9 3 0 0 0 0 0.03 0 0.83 10.9 86 A
Wind
1981 to 2010 Canadian Climate Normals station data
Wind
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Speed (km/h) 13.4 13.8 14.6 15.0 13.8 12.3 11.7 11.2 12.3 13.4 14.1 13.4 13.2 A
Most Frequent Direction N N N N SW SW SW SW SW SW W W SW A
Maximum Hourly Speed (km/h) 65 64 72 59 64 64 56 56 51 70 68 61
Date
(yyyy/dd)
2008/ 30 1953/ 21 1956/ 08 1984/ 30 1954/ 25 1957/ 29 1999/ 07 1955/ 31 1957/ 05 2002/ 04 1957/ 08 2008/ 15
Direction of Maximum Hourly Speed SW SW NE S W W NW SW NW SW SW SW
Date
(yyyy/dd)
2008/ 30 1953/ 21 1956/ 08 1984/ 30 1954/ 25 1957/ 29 1999/ 07 1955/ 31 1957/ 05 2002/ 04 1957/ 08 2008/ 15
Maximum Gust Speed (km/h) 100 90 98 97 93 115 82 91 89 96 96 85
Date
(yyyy/dd)
1975/ 11 1967/ 16 2002/ 10 1975/ 19 1990/ 17 1999/ 13 1999/ 07 1988/ 05 1992/ 18 1993/ 21 1998/ 10 1971/ 11
Direction of Maximum Gust S NE SW SW W SW NW S S S SW SW
Date
(yyyy/dd)
1975/ 11 1967/ 16 2002/ 10 1975/ 19 1990/ 17 1999/ 13 1999/ 07 1988/ 05 1992/ 18 1993/ 21 1998/ 10 1971/ 11
Days with Winds >= 52 km/h 0.6 0.4 0.7 0.5 0.4 0.1 0.3 0.0 0.0 0.7 0.5 0.7 5.0 A
Days with Winds >= 63 km/h 0.1 0.0 0.2 0.1 0.1 0.0 0.1 0.0 0.0 0.2 0.2 0.1 1.3 A
Degree Days
1981 to 2010 Canadian Climate Normals station data
Degree Days
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Above 24 °C 0 0 0 0 0 0.6 2 1.3 0.1 0 0 0 4 A
Above 18 °C 0 0 0 0.7 5.6 28.9 54.4 39.5 8.6 0.4 0 0 138 A
Above 15 °C 0 0 0 2.8 20.8 72.1 124.6 97.9 28.7 2.6 0 0 349.5 A
Above 10 °C 0 0 0.3 14 82 193.1 274.5 239.9 109.9 19.1 0.8 0.1 933.6 A
Above 5 °C 0.2 0.2 5.4 52.2 196.7 339.7 429.5 394.5 241 76.6 10 0.7 1746.7 A
Above 0 °C 2.7 4.9 30 141.5 346 489.5 584.5 549.5 389.2 194.8 52.8 7.8 2793.2 A
Below 0 °C 391.5 297.2 170.1 22.9 0.2 0 0 0 0 4 77.6 263.5 1,227 A
Below 5 °C 544.1 433.6 300.4 83.5 5.9 0.2 0 0 1.8 40.8 184.8 411.5 2006.6 A
Below 10 °C 698.8 574.6 450.3 195.4 46.2 3.6 0 0.4 20.7 138.3 325.6 565.8 3019.7 A
Below 15 °C 853.8 715.8 605 334.2 140 32.6 5.2 13.4 89.4 276.7 474.8 720.8 4261.7 A
Below 18 °C 946.8 800.5 698 422 217.8 79.4 27.9 48 159.4 367.5 564.8 813.8 5145.9 A
Bright Sunshine
1981 to 2010 Canadian Climate Normals station data
Bright Sunshine
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Total Hours 86.4 116.5 151.0 190.5 235.2 245.8 266.1 224.8 154.4 118.3 64.6 69.0 1922.4 D
Days with measureable 19.3 20.5 24.3 25.0 28.3 28.0 29.1 28.0 25.4 25.2 17.5 16.4 287.0 D
% of possible daylight hours 30.8 40.1 41.0 46.9 50.7 52.1 55.8 51.2 40.9 34.9 22.7 25.7 41.1 D
Extreme Daily 9.7 10.5 11.9 13.9 15.9 15.5 15.4 14.4 13.2 10.8 10.0 8.6
Date
(yyyy/dd)
2003/ 29 1986/ 26 1995/ 28 1999/ 28 1996/ 24 1970/ 12 1978/ 01 1971/ 04 1970/ 01 1981/ 12 1988/ 18 1971/ 04
Humidex
1981 to 2010 Canadian Climate Normals station data
Humidex
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Extreme Humidex 12.2 12.7 20.8 29.9 38.3 40.8 42.3 42.3 41.2 33.0 22.4 17.6
Date
(yyyy/dd)
1995/ 14 1999/ 12 1990/ 15 1990/ 26 2006/ 30 1994/ 16 1975/ 31 2006/ 01 1953/ 01 2005/ 04 1961/ 03 1982/ 03
Days with Humidex >= 30 0.0 0.0 0.0 0.0 0.7 4.9 8.0 6.3 1.7 0.0 0.0 0.0 21.6 A
Days with Humidex >= 35 0.0 0.0 0.0 0.0 0.1 0.9 1.8 1.3 0.1 0.0 0.0 0.0 4.3 A
Days with Humidex >= 40 0.0 0.0 0.0 0.0 0.0 0.1 0.2 0.2 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 -52 -47 -42 -31 -15 -8 0 -4 -7 -17 -35 -49
Date
(yyyy/dd)
1982/ 10 1995/ 05 2003/ 02 1972/ 07 1957/ 16 1972/ 10 1953/ 01 1976/ 30 1974/ 22 1955/ 25 1958/ 30 1993/ 26
Days with Wind Chill < -20 20.5 16.9 9.1 0.6 0.0 0.0 0.0 0.0 0.0 0.0 1.8 12.7 61.6 A
Days with Wind Chill < -30 8.7 5.2 1.7 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 3.4 19.0 A
Days with Wind Chill < -40 1.5 0.1 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.2 2.0 A
Humidity
1981 to 2010 Canadian Climate Normals station data
Humidity
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Average Vapour Pressure (kPa) 0.2 0.3 0.3 0.5 0.9 1.3 1.6 1.5 1.2 0.8 0.5 0.3 0.8 A
Average Relative Humidity - 0600LST (%) 79.6 77.4 74.5 74.1 75.7 81.7 85.6 89 90.9 87.2 86.1 84.3 82.2 A
Average Relative Humidity - 1500LST (%) 72.4 66 57.6 53 51.8 56.3 57.4 60.2 65.5 66.9 75.2 77.3 63.3 A
Pressure
1981 to 2010 Canadian Climate Normals station data
Pressure
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
Average Station Pressure (kPa) 97 97.1 97.1 97 97 97 97.1 97.2 97.3 97.2 97.1 97 97.1 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 31 23.4 31.9 18.2 11.8 6.4 4.6 6.9 14 17.9 31.8 36.7 234.6 C
1 to 9 km 168 135.5 102.7 81.7 70.2 65.5 74.9 84.3 88.7 87.6 129.3 176.6 1264.9 C
> 9 km 545 519.4 609.4 620.1 662 648.1 664.6 652.8 617.3 638.5 559 530.7 7266.8 C
Cloud Amount (hours with)
1981 to 2010 Canadian Climate Normals station data
Cloud Amount (hours with)
  JanFebMarAprMayJunJulAugSepOctNovDecYear Code
0 to 2 tenths 181.9 189.5 235.1 197.6 189.8 179.4 197.1 210.4 186.2 157.2 109.2 144.6 2,178 C
3 to 7 tenths 94.8 100.7 113.6 125.6 154.8 185.9 226.4 206.5 168.3 128.6 93.3 92.2 1690.6 C
8 to 10 tenths 467.3 387.3 395.3 396.8 399.5 354.7 320.6 327.1 365.5 458.2 517.5 507.2 4896.9 C
Frost-Free
1981 to 2010 Canadian Climate Normals station data (Frost-Free)
Frost-FreeCode
Average Date of Last Spring Frost May 16 LegendAA
Average Date of First Fall Frost September 29 LegendAA
Average Length of Frost-Free Period 135 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%
DateJun 02May 26May 22May 17May 13May 11May 05
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 03Oct 04Oct 07
Probability of frost-free period equal to or less than indicated period (Days) 10% 25% 33% 50% 66% 75% 90%
Days105123125132135138150
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