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Canada

SARNIA, ONTARIO


Home > North America > Canada > Ontario
Elevation: 594 feet     Latitude: 43 00N     Longitude: 082 18W

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MONTHLY - ALL WEATHER AVERAGES   [ Show Summary ]
[ °C ]   °F
TEMPERATURE 
Average Temperature
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
F46.622.324.133.343.754.964.469.6686149.83927.9

Average High Temperature
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
F54.928.930.940.652.564.974.579.377.570.358.545.734

Average Low Temperature
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
F38.11617.125.734.744.454.359.958.651.341.232.421.9

Highest Recorded Temperature
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
F102.45966.978.188.291.2102.499.1100.293.984.973.964.4

Lowest Recorded Temperature
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
F-20-20-16.4-14.11426.6304334.229.1169-10.5

Average Number of Days Above 95F/35C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days0.6---------------0.20.3---------------

Average Number of Days Above 90F/32C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days14.1------------0.93.45.830.9---------

Average Number of Days Above 70F/21C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days119.6------0.8412.222.328.928.417.55.30.3---

Average Number of Days Above 50F/10C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days208.90.81.1615.327.729.931313024.69.52

Average Number of Days Above 32F/0C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days310.412.713.423.929.43130313130312819.1

Average Number of Days Below 35F/2C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days165.430.327.627.6183.50.1------0.37.520.829.6

Average Number of Days Below 32F/0C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days137.728.925.424.311.60.9---------0.13.516.126.8

Average Number of Days Below 28F/-2C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days103.826.222.317.85.8---------------19.321.3

Average Number of Days Below 10F/-12C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days34.41310.63.4---------------------0.37.1

Average Number of Days Below 0F/-17C
Years on Record: 12  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days2.30.90.9---------------------------0.5

Average Number of Days Below -4F/-20C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days31.31.30.1------------------------0.2

Average Number of Days Below -22F/-30C
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days---------------------------------------



TEMPERATURE - WIND CHILL 
Lowest Reported Wind Chill
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
F-41.6-41.6-36.2-22.2-1.718.932.744.635.424.315.3-4.5-25.6



TEMPERATURE - HUMIDEX 
Highest Reported Humidex
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
F121.86370.78695101.8111.7121.8117.1110.894.87972.3



PRECIPITATION 
Average Precipitation
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in33.321.92.532.83.42.933.72.632.7

Average Number of Days With Precipitation
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days147.114.612.41313.211.610.910.710.311.311.313.314.4

Most Precipitation Reported in a Day
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in3.81.21.51.821.63.52.92.33.82.51.91.5

Avg. No. of Days w/Precip. Above 0.2in/5mm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days51.93.13.14.154.54.94.34.5544.64.8

Avg. # of Days w/Precip. Above 0.4in/10mm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days26.41.21.31.92.32.52.82.22.53.22.22.51.7

Avg. No. of Days w/Precip. Above 1in/25mm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days5.10.10.10.30.40.30.70.50.70.90.40.50.2



PRECIPITATION - RAIN 
Average Rainfall
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in28.80.90.91.72.82.83.42.933.72.52.61.6

Average Number of Rainy Days
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days111.84.44.67.911.611.610.910.710.311.31110.66.9

Most Rain Reported in a Day
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in3.811.51.821.63.52.82.33.82.51.91.5

Avg. No. of Days w/Rain Above 0.2in/5mm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days44.91.51.82.94.74.54.94.34.553.942.9

Avg. No. of Days w/Rain Above 0.4in/10mm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days24.30.80.81.62.22.52.82.22.53.22.12.31.1

Avg. No. of Days w/Rain Above 1in/25mm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days4.8---0.10.20.40.30.70.50.70.90.30.50.2



PRECIPITATION - SNOW 
Average Snowfall
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in49.212.410.47.62.1---------------0.7411.9

Average Number of Days With Snow
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days4411.69.16.92.4---------------0.53.79.9

Average Snow Cover
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in0.83.13.50.8------------------------1.6

Average Snow Cover at Month End
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in0.83.92.4------------------------0.42

Deepest Snow Cover Reported
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in23.623.616.9159.1---------------3.15.920.9

Most Snow Reported in a Day
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
in159.31313.16.5---------------77.315

Avg. No. of Days w/Snowfall Above 2in/5cm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days7.71.91.61.30.3---------------0.10.62

Avg. No. of Days w/Snow Above 3.9in/10cm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days2.10.40.40.40.1------------------0.20.6

Avg. No. of Days w/Snowfall Above 10in/25cm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days0.1------------------------------------

Av. # of Days w/Snow Depth Above 0.4in/10mm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days69.921.320.49.61.7---------------0.22.214.5

Avg. # of Days w/Snow Depth Above 2in/5cm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days46.21515.45.90.5---------------0.20.88.4

Av. # of Days w/Snow Depth Above 3.9in/10cm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days27.510.39.73.20.4------------------0.23.7

Av. # of Days w/Snow Depth Above 7.8in/20cm
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days11.34.54.70.70.2---------------------1.2



HUMIDITY 
Average Relative Humidity
Years on Record: 29  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
%73777674706970697274747678

Average Morning Relative Humidity
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
%8683.883.584.283.683.986.389.391.689.785.884.985.2

Average Dew Point
Years on Record: 29  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
F40181925364657616054443222



DEGREE DAYS 
Heating Degree Days
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days3882.2718.4633.7537.8347.3179.850.810.115.685.5252.3423.1627.8

Cooling Degree Days
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days275.4------0.1214.451.599.678.8272------

Growing Degree Days
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days2079.5------------151.9432607.6558330---------



VISIBILITY 
Average Monthly Sunshine
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Hr2061.982.7101.4134.1186.8245.7269297.7250.3189.1149.489.366.6

Average Number of Days with Sun
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days289.919.919.822.125.227.827.830.128.426.625.619.617

Average Possibility of Sunshine
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
%4428.434.236.346.554.158.6645850.343.530.523.7

Most Sunshine Reported in a Day
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Hr159.610.81113.614.8151514.212.810.79.88.9



WIND 
Average Wind Speed
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
mph9.912.11111.411.19.48.57.57.18.39.811.111.2

Highest Reported Hourly Wind Speed
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
mph57.848.550.341.64640.434.832.941.634.844.751.657.8

Highest Reported Wind Gust
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
mph98.862.172.798.867.771.554.163.454.157.865.967.777.1

Avg. # of Days w/Wind Above 32 mph/52 km/h
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days14.72.11.721.81.30.80.50.20.40.71.41.8

Avg. # of Days w/Wind Above 39 mph/63 km/h
Years on Record: 30  Chart This
 ANNUAL  JAN  FEB  MAR  APR  MAY  JUN  JUL  AUG  SEP  OCT  NOV  DEC 
Days4.80.60.40.70.90.50.2---0.1---0.10.40.8







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