Climate and Average Weather Year Round in Ontario Canada

We show the climate in Ontario by comparing the average weather in 4 representative places: Toronto, Windsor, Red Lake, and Fort Severn Airport.

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Average High and Low Temperature in Ontario

Average High and Low Temperature in OntarioJanFebMarAprMayJunJulAugSepOctNovDec-20°F-20°F-10°F-10°F0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F63177829678358-9947-16-1NowNowTorontoTorontoWindsorWindsorRed LakeRed LakeFort Severn AirportFort Severn Airport
The daily average high and low air temperature at 2 meters above the ground.
HighJanFebMarAprMayJunJulAugSepOctNovDec
Toronto 30°F31°F39°F51°F63°F72°F77°F76°F68°F56°F45°F35°F
Windsor 32°F34°F45°F58°F69°F78°F82°F80°F72°F60°F48°F37°F
Red Lake 10°F17°F32°F48°F62°F71°F75°F72°F61°F46°F29°F14°F
Fort Severn Airport -1°F2°F14°F29°F43°F56°F63°F62°F53°F39°F23°F7°F
LowJanFebMarAprMayJunJulAugSepOctNovDec
Toronto 18°F19°F27°F38°F48°F57°F63°F62°F55°F44°F34°F25°F
Windsor 21°F22°F30°F41°F52°F61°F66°F64°F57°F46°F36°F26°F
Red Lake -8°F-4°F10°F27°F41°F52°F58°F55°F45°F33°F17°F-1°F
Fort Severn Airport -15°F-13°F-3°F14°F29°F38°F45°F47°F40°F30°F12°F-6°F

Toronto

Average Hourly Temperature in TorontoJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldcoldcoolcomfortablewarmvery coldcomfortable

Windsor

Average Hourly Temperature in WindsorJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingcoldcoldcoolcomfortablewarmvery coldvery coldfreezing

Red Lake

Average Hourly Temperature in Red LakeJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfrigidfrigidcoldcoldcoolcomfortablefreezingfreezingvery cold

Fort Severn Airport

Average Hourly Temperature in Fort Severn AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfrigidfrigidfreezingvery coldcoldcoolfreezing
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

Chance of Clearer Skies in Ontario

Chance of Clearer Skies in OntarioJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%67396820428NowNowTorontoTorontoWindsorWindsorRed LakeRed LakeFort Severn AirportFort Severn Airport
The percentage of time the sky is clear, mostly clear, or partly cloudy (i.e., less than 60% of the sky is covered by clouds).
Clearer SkiesJanFebMarAprMayJunJulAugSepOctNovDec
Toronto 40%42%46%48%51%56%63%66%63%56%47%42%
Windsor 37%40%45%47%50%57%65%67%65%58%48%40%
Red Lake 23%20%29%44%48%53%62%62%52%42%31%23%
Fort Severn Airport 9%11%17%30%38%39%40%40%38%33%23%12%

Daily Chance of Precipitation in Ontario

Daily Chance of Precipitation in OntarioJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%3114368345NowNowTorontoTorontoWindsorWindsorRed LakeRed LakeFort Severn AirportFort Severn Airport
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip.JanFebMarAprMayJunJulAugSepOctNovDec
Toronto 5.1d4.3d5.9d7.3d8.1d8.7d8.2d8.3d8.6d8.7d6.9d6.4d
Windsor 5.7d5.1d7.3d9.0d10.1d10.3d10.4d10.0d9.0d7.5d6.8d6.9d
Red Lake 3.2d2.5d3.8d4.8d8.7d10.4d9.7d8.9d7.9d6.7d4.6d3.5d
Fort Severn Airport 1.7d1.7d2.6d4.2d6.5d7.9d9.3d10.1d8.7d6.5d4.1d2.4d

Average Monthly Rainfall in Ontario

Average Monthly Rainfall in OntarioJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 in3.0 in3.0 in3.5 in3.5 in4.0 in4.0 in2.10.52.70.73.72.9NowNowTorontoTorontoRed LakeRed LakeFort Severn AirportFort Severn Airport
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
RainfallJanFebMarAprMayJunJulAugSepOctNovDec
Toronto 0.5″0.5″0.8″1.5″1.8″1.9″1.8″1.8″2.1″1.9″1.5″0.9″
Windsor 0.8″0.8″1.4″2.2″2.5″2.7″2.5″2.6″2.6″2.1″1.9″1.3″
Red Lake 0.0″0.1″0.3″0.8″2.3″3.6″3.1″2.6″2.5″1.5″0.5″0.0″
Fort Severn Airport 0.0″0.0″0.0″0.3″1.0″2.0″2.5″2.8″2.5″1.5″0.4″0.0″

Average Monthly Snowfall in Ontario

Average Monthly Snowfall in OntarioJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in3.54.95.65.2NowNowTorontoTorontoWindsorWindsorRed LakeRed LakeFort Severn AirportFort Severn Airport
The average snowfall accumulated over the course of a sliding 31-day period centered on the day in question.
SnowfallJanFebMarAprMayJunJulAugSepOctNovDec
Toronto 3.3″3.5″2.7″0.7″0.0″0.0″0.0″0.0″0.0″0.0″0.7″2.8″
Windsor 4.4″4.9″3.0″0.6″0.0″0.0″0.0″0.0″0.0″0.0″0.4″3.3″
Red Lake 4.7″3.3″3.7″2.8″1.4″0.0″0.0″0.0″0.2″1.9″5.3″4.9″
Fort Severn Airport 2.5″2.6″4.1″4.9″3.8″0.4″0.0″0.0″0.0″1.6″4.8″3.4″

Hours of Daylight in Ontario

Hours of Daylight in OntarioJanFebMarAprMayJunJulAugSepOctNovDec4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr15.58.916.67.917.66.9NowNowTorontoTorontoWindsorWindsorRed LakeRed LakeFort Severn AirportFort Severn Airport
The number of hours during which the Sun is at least partly above the horizon.
DaylightJanFebMarAprMayJunJulAugSepOctNovDec
Toronto 9.4h10.5h12.0h13.5h14.8h15.4h15.0h13.9h12.4h10.9h9.6h9.0h
Windsor 9.5h10.6h12.0h13.4h14.6h15.2h14.9h13.8h12.4h11.0h9.8h9.1h
Red Lake 8.5h10.1h12.0h13.9h15.6h16.5h16.0h14.4h12.5h10.6h8.9h8.0h
Fort Severn Airport 7.7h9.7h12.0h14.3h16.4h17.5h16.9h14.9h12.6h10.3h8.2h7.1h

Chance of Muggy Conditions in Ontario

Chance of Muggy Conditions in OntarioJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%26376NowNowTorontoTorontoWindsorWindsorRed LakeRed Lake
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).
Muggy daysJanFebMarAprMayJunJulAugSepOctNovDec
Toronto 0.0d0.0d0.0d0.0d0.2d2.4d6.8d6.8d2.6d0.1d0.0d0.0d
Windsor 0.0d0.0d0.0d0.0d1.2d5.5d10.7d9.8d4.0d0.3d0.0d0.0d
Red Lake 0.0d0.0d0.0d0.0d0.0d0.5d1.8d1.2d0.3d0.0d0.0d0.0d
Fort Severn Airport 0.0d0.0d0.0d0.0d0.0d0.1d0.2d0.2d0.0d0.0d0.0d0.0d

Average Wind Speed in Ontario

Average Wind Speed in OntarioJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph14.48.413.76.85.515.010.2NowNowTorontoTorontoWindsorWindsorRed LakeRed LakeFort Severn AirportFort Severn Airport
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph)JanFebMarAprMayJunJulAugSepOctNovDec
Toronto 14.313.712.611.39.69.08.78.69.811.212.413.5
Windsor 13.512.912.612.010.49.28.58.49.811.512.713.2
Red Lake 5.75.96.46.76.56.25.96.06.36.25.85.5
Fort Severn Airport 14.314.113.612.912.411.310.411.112.913.914.814.2

Average Water Temperature in Ontario

Average Water Temperature in OntarioJanFebMarAprMayJunJulAugSepOctNovDec30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F69367433NaN4629NowNowTorontoTorontoWindsorWindsorFort Severn AirportFort Severn Airport
The daily average wide-area surface water temperature.
Water Temp.JanFebMarAprMayJunJulAugSepOctNovDec
Toronto 38°F36°F36°F38°F44°F56°F66°F69°F65°F55°F47°F41°F
Windsor 35°F33°F35°F42°F52°F64°F72°F74°F68°F58°F48°F40°F
Fort Severn Airport 29°F29°F29°F29°F30°F32°F37°F44°F44°F39°F33°F30°F

Tourism Score in Ontario

Tourism Score in OntarioJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.36.63.4NowNowTorontoTorontoWindsorWindsorRed LakeRed Lake
The tourism score, which favors clear, rainless days with perceived temperatures between 65°F and 80°F.

Beach/Pool Score in Ontario

Beach/Pool Score in OntarioJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.05.83.10.9NowNowTorontoTorontoWindsorWindsorRed LakeRed LakeFort Severn AirportFort Severn Airport
The beach/pool score, which favors clear, rainless days with perceived temperatures between 75°F and 90°F.

Growing Season in Ontario

Growing Season in OntarioJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowTorontoTorontoWindsorWindsorRed LakeRed LakeFort Severn AirportFort Severn Airport
The percentage chance that a given day is within the growing season, defined as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

Growing Degree Days in Ontario

Growing Degree Days in OntarioJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°F3,000°F3,000°FNowNowTorontoTorontoWindsorWindsorRed LakeRed LakeFort Severn AirportFort Severn Airport
The average growing degree days accumulated over the course of the year, where growing degree days are defined as the integral of warmth above a base temperature (50°F in this case).

Average Daily Incident Shortwave Solar Energy in Ontario

Average Daily Incident Shortwave Solar Energy in OntarioJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh7.01.36.40.86.00.4NowNowTorontoTorontoWindsorWindsorRed LakeRed LakeFort Severn AirportFort Severn Airport
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh)JanFebMarAprMayJunJulAugSepOctNovDec
Toronto 1.62.53.85.26.36.86.75.94.73.11.91.4
Windsor 1.82.74.05.26.26.86.76.04.83.32.11.5
Red Lake 1.11.93.34.95.86.36.35.43.82.21.20.8
Fort Severn Airport 0.71.52.94.55.65.95.34.32.81.50.70.4

This report illustrates the typical weather for Toronto, Windsor, Red Lake, and Fort Severn Airport year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

The details of the data sources used on this page vary between places and are discussed in detail on each place's dedicated page:

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

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