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Canadian Climate Normals 1971-2000

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.

NOTE!! 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.

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.

Normals from to  
January-June January-December+Year July-December
Temperature:Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Daily Average (°C)-13 -10.9 -4.8 3.3 11.2 15.9 18.6 17.3 12.2 5.9 -1.4 -9.1 3.8 A
Standard Deviation3 2.9 2.4 2.1 2.1 1.6 1.1 1.3 1.4 1.9 1.7 3.3 0.9 A
Daily Maximum (°C)-8 -5.8 0.2 8.4 16.8 21.3 23.8 22.3 16.9 10.1 2.2 -4.7 8.6 A
Daily Minimum (°C)-18 -15.9 -9.8 -1.8 5.5 10.5 13.3 12.3 7.4 1.7 -4.9 -13.5 -1.1 A
Extreme Maximum (°C)12.2 21.4 23.9 29.9 31.6 33.3 35.4 33.5 33.3 26.7 20 14.4    
Date (yyyy/dd)1950/25 1997/19 1945/26 1990/28 1977/21 1944/28 1988/08 2001/08 1953/03 1946/06 1961/03 1982/03  
Extreme Minimum (°C)-40 -39.4 -36.7 -21.1 -8.3 -2.1 2.6 0 -4.5 -11.7 -23.9 -36.7    
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 1942/20  
Precipitation:
Rainfall (mm)16.9 9.6 31.9 51.4 85.5 95.2 100.1 100.1 113.3 92.2 58.6 19.9 774.6 A
Snowfall (cm)63 52.2 38 16.2 2.1 0 0 0 0.2 5.5 35 61.3 273.4 A
Precipitation (mm)67.6 52.6 65.4 67.2 87.6 95.2 100.1 100.1 113.5 97.6 89.9 70.9 1007.7 A
Average Snow Depth (cm)39 51 44 11 0 0 0 0 0 0 4 18 14 A
Median Snow Depth (cm)39 51 43 11 0 0 0 0 0 0 2 17 14 A
Snow Depth at Month-end (cm)48 51 26 0 0 0 0 0 0 0 8 29 14 A
Extreme Daily Rainfall (mm)52.7 21.3 45.7 62.2 50 63.8 93.2 96.3 71 75.2 53.2 38.4    
Date (yyyy/dd)1997/22 1968/01 1942/08 1939/01 1970/31 1957/29 1990/30 1952/31 1999/28 1983/03 1995/11 1961/04  
Extreme Daily Snowfall (cm)28.2 26.4 48.3 29.5 12.4 0.4 0 0 4.6 26.2 22.6 23.2    
Date (yyyy/dd)2001/30 1965/25 1943/10 1969/01 1974/06 1980/10 1939/01 1939/01 1956/30 1962/30 1989/19 1989/25  
Extreme Daily Precipitation (mm)56.7 37.8 48.3 73.7 50 63.8 93.2 96.3 71 75.2 54.8 38.4    
Date (yyyy/dd)1997/22 2002/20 1943/10 1939/01 1970/31 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:
<= 0 °C26.8 22.9 14.9 2.6 0 0 0 0 0 0.63 10.9 23.6 102.4 A
> 0 °C4.2 5.3 16.1 27.4 31 30 31 31 30 30.4 19.1 7.4 262.8 A
> 10 °C0.10 0.13 2.1 11.7 26.8 29.6 31 31 27.8 15.5 3.1 0.20 179.1 A
> 20 °C0 0.03 0 1.5 9.7 18.2 26.3 22.5 7.5 1.2 0 0 86.9 A
> 30 °C0 0 0 0 0.03 0.33 0.90 0.33 0.03 0 0 0 1.6 A
> 35 °C0 0 0 0 0 0 0.03 0 0 0 0 0 0.03 A
Days with Minimum Temperature:
> 0 °C0.20 0.70 2.6 10.7 26.5 29.8 31 31 28.2 18 5.6 1 185.3 A
<= 2 °C30.9 28.1 29.9 23.4 8 1.1 0 0.07 4.2 17.6 27.3 30.8 201.4 A
<= 0 °C30.8 27.6 28.4 19.3 4.5 0.17 0 0.03 1.8 13 24.4 30 180 A
< -2 °C30.3 26.8 26.3 13.7 1.5 0.03 0 0 0.40 6.7 19.4 28.4 153.5 A
< -10 °C25 21.7 14.7 2.1 0 0 0 0 0 0.03 6.1 19.5 89.2 A
< -20 °C13.7 9.2 2.9 0 0 0 0 0 0 0 0.20 7.7 33.8 A
< - 30 °C2.2 0.57 0 0 0 0 0 0 0 0 0 0.60 3.4 A
Days with Rainfall:
>= 0.2 mm3.3 2.2 5.4 9 12.4 13.9 12.5 12.4 14 12.9 9 4.3 111.3 A
>= 5 mm1.2 0.77 2 3.8 5.5 5.4 5.5 5.7 6.5 6.2 3.2 1.2 47 A
>= 10 mm0.57 0.33 1.1 1.7 2.8 3.4 3.4 3.1 4.1 3.2 1.9 0.70 26.4 A
>= 25 mm0.07 0 0.17 0.20 0.53 0.77 0.87 1 0.93 0.57 0.33 0.10 5.6 A
Days With Snowfall:
>= 0.2 cm18.1 13.9 11.4 6.5 0.77 0.07 0 0 0.23 2.9 11.2 17.4 82.4 A
>= 5 cm4.4 3.6 2.5 1 0.07 0 0 0 0 0.23 2.4 4.4 18.5 A
>= 10 cm1.2 1.1 0.83 0.23 0.03 0 0 0 0 0 0.63 1.1 5.1 A
>= 25 cm0.03 0 0 0 0 0 0 0 0 0 0 0 0.03 A
Days with Precipitation:
>= 0.2 mm18.8 14.4 14.4 12.6 12.7 13.9 12.5 12.4 14.1 14.5 17 19.2 176.5 A
>= 5 mm4.3 3.8 4.1 4.9 5.7 5.4 5.5 5.7 6.5 6.5 5.5 4.4 62.2 A
>= 10 mm1.6 1.3 1.9 2.1 2.9 3.4 3.4 3.1 4.1 3.2 2.7 1.4 31.2 A
>= 25 mm0.10 0.07 0.17 0.27 0.53 0.77 0.87 1 0.93 0.57 0.40 0.17 5.9 A
Days with Snow Depth:
>= 1 cm30.8 28.3 29.8 13.8 0.20 0 0 0 0.03 1.1 14.3 28 146.3 A
>= 5 cm30.7 28.1 28.5 10.6 0.07 0 0 0 0.03 0.17 8.2 24.6 131 A
>= 10 cm29.3 27.9 27.2 9 0.03 0 0 0 0.03 0 4.5 19.8 117.7 A
>= 20 cm25.8 26.2 23.9 6.4 0 0 0 0 0.03 0 1.1 11.5 94.9 A
Wind:
Speed (km/h)13.6 13.6 14.8 14.8 13.5 12.2 11.5 10.7 11.8 13.1 13.9 13.2 13.1 A
Most Frequent DirectionSW N N N SW SW SW SW SW SW W E SW A
Maximum Hourly Speed (km/h)58 64 72 59 64 64 56 56 51 70 68 59    
Date (yyyy/dd)1961/17 1953/21 1956/08 1984/30 1954/25 1957/29 1999/07 1955/31 1957/05 2002/04 1957/08 1980/02  
Maximum Gust Speed (km/h)100 90 89 97 93 115 82 91 89 96 96 85    
Date (yyyy/dd)1975/11 1967/16 1985/31 1975/19 1990/17 1999/13 1999/07 1988/05 1992/18 1993/21 1998/10 1971/11  
Direction of Maximum GustS NE E SW W SW NW S S S SW SW SW  
Days with Winds >= 52 km/h0.7 0.4 0.7 0.5 0.3 0.1 0.3 0 0 0.4 0.5 0.6 4.6 A
Days with Winds >= 63 km/h0.1 0 0.2 0.2 0.1 0 0.1 0 0 0.1 0.2 0.1 1.1 A
Degree Days:
Above 24 °C0 0 0 0 0 0.3 1.2 0.6 0.1 0 0 0 2.1 A
Above 18 °C0 0 0 0.7 6.2 24.3 48.3 33.1 6.5 0.2 0 0 119.3 A
Above 15 °C0 0 0 2.5 22.5 65.1 116.1 88.1 21.6 1.6 0 0 317.6 A
Above 10 °C0 0 0.3 11.7 84.8 182.8 265.1 227.4 91.5 17.7 0.7 0.1 881.8 A
Above 5 °C0.1 0.2 5.3 45.2 199.1 327.9 420 381.7 217 74.9 9.6 0.5 1681.6 A
Above 0 °C1.7 4.8 27.7 127.9 347.2 477.6 575 536.7 364.6 189.2 47.6 6.2 2706.2 A
Below 0 °C405.1 311.8 176.9 29.2 0.2 0 0 0 0 5.9 88.9 289.4 1307.3 A
Below 5 °C558.5 448.6 309.5 96.5 7.1 0.3 0 0 2.4 46.6 200.9 438.7 2109.1 A
Below 10 °C713.4 589.8 459.5 213 47.8 5.2 0 0.7 26.8 144.3 342 593.2 3135.6 A
Below 15 °C868.4 731.1 614.2 353.8 140.5 37.5 6.1 16.4 107 283.3 491.3 748.1 4397.7 A
Below 18 °C961.4 815.9 707.2 442 217.2 86.8 31.3 54.4 181.8 374.8 581.3 841.1 5295.2 A
Bright Sunshine:
Total Hours91.9 119 147.5 193.2 246.3 250.3 271 226.6 151.3 119.1 67.6 73.7 1957.5 A
Days with measureable20.2 21.2 23.7 25.2 28.4 28.2 29.5 28.3 25.1 25 18.3 17 290.1 A
% of possible daylight hours32.8 40.9 40 47.6 53.1 53 56.8 51.6 40.1 35.1 23.8 27.4 41.8 A
Extreme Daily9.2 10.5 11.9 13.9 15.9 15.5 15.4 14.4 13 10.8 10 8.6   A
Date (yyyy/dd)1996/31 1986/26 1995/28 1999/28 1996/24 1977/10 1978/01 1971/04 1999/01 1981/12 1988/18 1971/04  
Humidex:
Extreme Humidex12.2 12.7 20.8 29.9 37 40.8 42.3 40.8 41.2 29.6 22.4 17.6    
Date (yyyy/dd)1995/14 1999/12 1990/15 1990/26 1987/28 1994/16 1975/31 1975/01 1953/01 1979/22 1961/03 1982/03  
Days with Humidex >= 300 0 0 0 0.8 4 7.5 5.4 1.2 0 0 0 19 A
Days with Humidex >= 350 0 0 0 0.1 0.5 1.5 0.7 0.2 0 0 0 3 A
Days with Humidex >= 400 0 0 0 0 0.1 0.1 0.1 0 0 0 0 0.3 A
Wind Chill:
Extreme Wind Chill-51.6 -46.9 -41 -30.6 -15.5 -8.1 0.2 -3.6 -7.2 -16.7 -35 -49.3    
Date (yyyy/dd)1982/10 1995/05 1989/07 1972/07 1957/16 1972/10 1963/08 1976/30 1974/22 1955/25 1958/30 1993/26  
Days with Wind Chill < -2021 17.2 9.7 0.8 0 0 0 0 0 0 1.8 14.7 65.2 A
Days with Wind Chill < -309.5 5.8 1.9 0 0 0 0 0 0 0 0.1 4.8 22.1 A
Days with Wind Chill < -401.7 0.3 0 0 0 0 0 0 0 0 0 0.3 2.4 A
Humidity:
Average Vapour Pressure (kPa)0.2 0.2 0.3 0.5 0.9 1.3 1.5 1.5 1.2 0.8 0.5 0.3 0.8 A
Average Relative Humidity - 0600LST (%)77.2 75.6 74.4 74 74.9 80.9 84.6 88.8 90.1 85.8 85.4 81.9 81.1 A
Average Relative Humidity - 1500LST (%)70.3 65 58.7 52.5 50.6 56 57.6 61.3 66 65.3 74.8 75.3 62.8 A
Pressure:
Average Station Pressure (kPa)96.9 97.1 97 97 97 97 97.1 97.3 97.2 97.2 97 97 97.1 A
Average Sea Level Pressure (kPa)101.6 101.7 101.6 101.5 101.4 101.4 101.5 101.7 101.7 101.7 101.6 101.7 101.6 A
Visibility (hours with):
< 1 km26.2 22 28 21.7 11.7 7.1 5.4 9.7 18.5 18.3 32 31.6 232.2 C
1 to 9 km189.7 155.8 129.6 93.2 77.2 92.4 101.9 126.4 122.4 98.3 145.4 191.2 1523.5 C
> 9 km528.1 501 586.4 605.2 655.1 620.5 636.7 607.9 579.2 627.5 542.6 521.1 7011.1 C
Cloud Amount (hours with):
0 to 2 tenths184 186.2 212.3 198.8 196.8 182 199.7 194.8 162 157.8 101.2 161 2136.7 C
3 to 7 tenths100.4 109 115.1 129.3 166.1 191.8 229.2 205.1 168 137.6 92.2 93.8 1737.5 C
8 to 10 tenths459.5 382.8 416.6 391.9 381.1 346.2 315.1 344.1 390 448.6 526.6 489.3 4891.8 C


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Date Modified: 2013-02-04

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