Canadian Climate Normals 1981-2010 Station Data

Temperature and Precipitation Graph
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Normals 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.

NORTH BAY A *
ONTARIO

* This station meets WMO standards for temperature and precipitation.

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Normals Station Data
(all elements)
Temperature
1981 to 2010 Canadian Climate Normals station data
Temperature
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Daily Average (°C)-12.5-10.4-4.54.011.216.318.917.713.06.2-0.8-8.34.2A
Standard Deviation3.52.82.22.12.11.51.21.41.61.52.03.20.9A
Daily Maximum (°C)-7.6-5.30.69.116.721.624.022.717.710.32.8-4.19.0A
Daily Minimum (°C)-17.4-15.4-9.6-1.25.611.013.712.78.22.0-4.4-12.3-0.6A
Extreme Maximum (°C)12.212.523.929.932.033.335.433.533.326.720.014.4
Date (yyyy/dd)1950/ 252000/ 261945/ 261990/ 282010/ 261944/ 281988/ 082001/ 081953/ 031946/ 061961/ 031982/ 03
Extreme Minimum (°C)-40.0-39.4-36.7-21.1-8.3-2.12.60.0-4.5-11.7-23.9-36.8
Date (yyyy/dd)1942/ 101943/ 151950/ 031954/ 041966/ 071986/ 021992/ 211976/ 301989/ 271969/ 231958/ 302004/ 20
Precipitation
1981 to 2010 Canadian Climate Normals station data
Precipitation
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Rainfall (mm)19.311.831.856.393.198.099.490.6115.299.165.522.7802.8A
Snowfall (cm)65.358.639.516.73.20.10.00.00.18.138.070.1299.6A
Precipitation (mm)68.957.164.671.696.398.399.490.6115.4106.698.177.81044.6A
Average Snow Depth (cm)334637500000031712A
Median Snow Depth (cm)344636300000011611A
Snow Depth at Month-end (cm)424418000000072611A
Extreme Daily Rainfall (mm)52.721.845.762.250.463.893.296.371.075.253.238.4
Date (yyyy/dd)1997/ 222009/ 271942/ 081939/ 012009/ 281957/ 291990/ 301952/ 311999/ 281983/ 031995/ 111961/ 04
Extreme Daily Snowfall (cm)33.627.648.329.519.24.20.00.04.626.223.226.2
Date (yyyy/dd)2006/ 292006/ 051943/ 101969/ 012004/ 022007/ 051939/ 011939/ 011956/ 301962/ 302007/ 242009/ 09
Extreme Daily Precipitation (mm)56.737.848.373.750.463.893.296.371.075.254.838.4
Date (yyyy/dd)1997/ 222002/ 201943/ 101939/ 012009/ 281957/ 291990/ 301952/ 311999/ 281983/ 031995/ 111961/ 04
Extreme Snow Depth (cm)98120117811000020234084
Date (yyyy/dd)1979/ 251997/ 281997/ 011972/ 041974/ 071955/ 011955/ 011955/ 011989/ 021962/ 311990/ 121989/ 28
Days with Maximum Temperature
1981 to 2010 Canadian Climate Normals station data
Days with Maximum Temperature
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
<= 0 °C26.722.6142.2000000.509.523.198.6A
> 0 °C4.35.71727.8313031313030.520.57.9266.6A
> 10 °C0.100.102.212.527.129.7313128.315.33.40.27180.9A
> 20 °C0001.9919.126.723.79.51.50091.3A
> 30 °C00000.100.701.20.730.100002.8A
> 35 °C0000000.07000000.07A
Days with Minimum Temperature
1981 to 2010 Canadian Climate Normals station data
Days with Minimum Temperature
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
> 0 °C0.300.732.612.226.930313128.91961.2189.8A
<= 2 °C30.92829.922.880.7000.033.117.527.230.7199A
<= 0 °C30.727.528.417.84.10.03001.1122429.8175.5A
< -2 °C29.926.625.612.31.20.03000.275.418.627.9147.8A
< -10 °C24.421.414.51.50000005.518.385.5A
< -20 °C12.38.32.800000000.135.929.5A
< - 30 °C2.20.370.07000000000.373A
Days with Rainfall
1981 to 2010 Canadian Climate Normals station data
Days with Rainfall
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
>= 0.2 mm3.92.25.29.613.81412.611.913.913.910.24.6115.7A
>= 5 mm1.30.932.146.15.75.45.56.66.73.91.549.7A
>= 10 mm0.670.471.11.93.23.43.22.84.13.42.10.7727.1A
>= 25 mm0.0700.130.270.600.830.970.8310.530.370.105.7A
Days With Snowfall
1981 to 2010 Canadian Climate Normals station data
Days With Snowfall
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
>= 0.2 cm17.714.810.65.810.03000.17311.418.282.7A
>= 5 cm4.83.931.20.1700000.332.65.421.3A
>= 10 cm1.11.510.230.0300000.170.701.46.1A
>= 25 cm0.070.100.03000000000.030.23A
Days with Precipitation
1981 to 2010 Canadian Climate Normals station data
Days with Precipitation
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
>= 0.2 mm18.615.313.41314.11412.611.91415.517.720.1180.3A
>= 5 mm4.43.94.156.35.75.45.56.67.165.465.3A
>= 10 mm1.61.422.23.33.43.22.84.13.631.832.5A
>= 25 mm0.130.130.200.330.630.830.970.8310.530.470.176.2A
Days with Snow Depth
1981 to 2010 Canadian Climate Normals station data
Days with Snow Depth
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
>= 1 cm30.628.22910.70.300000.031.213.327.8141.3A
>= 5 cm30.428.127.770.100000.030.277.424.6125.6A
>= 10 cm29.227.826.15.400000.030.073.220.4112.2A
>= 20 cm24.125.221.9300000.0300.8310.986A
Wind
1981 to 2010 Canadian Climate Normals station data
Wind
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Speed (km/h)13.413.814.615.013.812.311.711.212.313.414.113.413.2A
Most Frequent DirectionNNNNSWSWSWSWSWSWWWSWA
Maximum Hourly Speed (km/h)656472596464565651706861
Date (yyyy/dd)2008/ 301953/ 211956/ 081984/ 301954/ 251957/ 291999/ 071955/ 311957/ 052002/ 041957/ 082008/ 15
Direction of Maximum Hourly SpeedSWSWNESWWNWSWNWSWSWSW
Maximum Gust Speed (km/h)10090989793115829189969685
Date (yyyy/dd)1975/ 111967/ 162002/ 101975/ 191990/ 171999/ 131999/ 071988/ 051992/ 181993/ 211998/ 101971/ 11
Direction of Maximum GustSNESWSWWSWNWSSSSWSW
Days with Winds >= 52 km/h0.60.40.70.50.40.10.30.00.00.70.50.75.0A
Days with Winds >= 63 km/h0.10.00.20.10.10.00.10.00.00.20.20.11.3A
Degree Days
1981 to 2010 Canadian Climate Normals station data
Degree Days
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Above 24 °C000000.621.30.10004A
Above 18 °C0000.75.628.954.439.58.60.400138A
Above 15 °C0002.820.872.1124.697.928.72.600349.5A
Above 10 °C000.31482193.1274.5239.9109.919.10.80.1933.6A
Above 5 °C0.20.25.452.2196.7339.7429.5394.524176.6100.71746.7A
Above 0 °C2.74.930141.5346489.5584.5549.5389.2194.852.87.82793.2A
Below 0 °C391.5297.2170.122.90.20000477.6263.51,227A
Below 5 °C544.1433.6300.483.55.90.2001.840.8184.8411.52006.6A
Below 10 °C698.8574.6450.3195.446.23.600.420.7138.3325.6565.83019.7A
Below 15 °C853.8715.8605334.214032.65.213.489.4276.7474.8720.84261.7A
Below 18 °C946.8800.5698422217.879.427.948159.4367.5564.8813.85145.9A
Bright Sunshine
1981 to 2010 Canadian Climate Normals station data
Bright Sunshine
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Total Hours86.4116.5151.0190.5235.2245.8266.1224.8154.4118.364.669.01922.4D
Days with measurable19.320.524.325.028.328.029.128.025.425.217.516.4287.0D
% of possible daylight hours30.840.141.046.950.752.155.851.240.934.922.725.741.1D
Extreme Daily9.710.511.913.915.915.515.414.413.210.810.08.6
Date (yyyy/dd)2003/ 291986/ 261995/ 281999/ 281996/ 241970/ 121978/ 011971/ 041970/ 011981/ 121988/ 181971/ 04
Humidex
1981 to 2010 Canadian Climate Normals station data
Humidex
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Extreme Humidex12.212.720.829.938.340.842.342.341.233.022.417.6
Date (yyyy/dd)1995/ 141999/ 121990/ 151990/ 262006/ 301994/ 161975/ 312006/ 011953/ 012005/ 041961/ 031982/ 03
Days with Humidex >= 300.00.00.00.00.74.98.06.31.70.00.00.021.6A
Days with Humidex >= 350.00.00.00.00.10.91.81.30.10.00.00.04.3A
Days with Humidex >= 400.00.00.00.00.00.10.20.20.00.00.00.00.4A
Wind Chill
1981 to 2010 Canadian Climate Normals station data
Wind Chill
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Extreme Wind Chill-52-47-42-31-15-80-4-7-17-35-49
Date (yyyy/dd)1982/ 101995/ 052003/ 021972/ 071957/ 161972/ 101953/ 011976/ 301974/ 221955/ 251958/ 301993/ 26
Days with Wind Chill < -2020.516.99.10.60.00.00.00.00.00.01.812.761.6A
Days with Wind Chill < -308.75.21.70.00.00.00.00.00.00.00.13.419.0A
Days with Wind Chill < -401.50.10.10.00.00.00.00.00.00.00.00.22.0A
Humidity
1981 to 2010 Canadian Climate Normals station data
Humidity
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Average Vapour Pressure (kPa)0.20.30.30.50.91.31.61.51.20.80.50.30.8A
Average Relative Humidity - 0600LST (%)79.677.474.574.175.781.785.68990.987.286.184.382.2A
Average Relative Humidity - 1500LST (%)72.46657.65351.856.357.460.265.566.975.277.363.3A
Pressure
1981 to 2010 Canadian Climate Normals station data
Pressure
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
Average Station Pressure (kPa)9797.197.197979797.197.297.397.297.19797.1A
Average Sea Level Pressure (kPa)101.6101.7101.7101.5101.5101.4101.4101.6101.7101.7101.6101.6101.6A
Visibility (hours with)
1981 to 2010 Canadian Climate Normals station data
Visibility (hours with)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
< 1 km3123.431.918.211.86.44.66.91417.931.836.7234.6C
1 to 9 km168135.5102.781.770.265.574.984.388.787.6129.3176.61264.9C
> 9 km545519.4609.4620.1662648.1664.6652.8617.3638.5559530.77266.8C
Cloud Amount (hours with)
1981 to 2010 Canadian Climate Normals station data
Cloud Amount (hours with)
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year Code
0 to 2 tenths181.9189.5235.1197.6189.8179.4197.1210.4186.2157.2109.2144.62,178C
3 to 7 tenths94.8100.7113.6125.6154.8185.9226.4206.5168.3128.693.392.21690.6C
8 to 10 tenths467.3387.3395.3396.8399.5354.7320.6327.1365.5458.2517.5507.24896.9C
Frost-Free
1981 to 2010 Canadian Climate Normals station data (Frost-Free)
Frost-Free
Date/Days Code
Average Date of Last Spring Frost May 16 A
Average Date of First Fall Frost Sept 29 A
Average Length of Frost-Free Period 135 Days A
1981 to 2010 Canadian Climate Normals station data (Frost-Free)
Frost-Free
Probability of last temperature in spring of 0 °C or lower on or after indicated dates10%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 dates10%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
Station / Element Metadata

Statistics listed below are provided as a guide to determine the validity of Normals and Extremes calculations. For example, a station with 30 years of record between 1981 and 2010 with no missing years would be a more reliable normal than a station with 15 years of record and 2 missing years. Less than 100% possible observations indicates that out of the total number of observations used, some records were missing.

NORTH BAY A

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