Compare the Climate and Weather in Waterloo; Kitchener/Waterloo Airport; Mount Forest, Ont.; and Delhi CS, Ont.

This page lets you compare and contrast the weather and climate in Waterloo; Kitchener/Waterloo Airport; Mount Forest, Ont.; and Delhi CS, Ont. year round.

You can drill down to a specific season, month, and even day by clicking the graphs or using the navigation panel.

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Average High and Low Temperature

Compare the Average High and Low Temperature in Waterloo; Kitchener/Waterloo Airport; Mount Forest, Ont.; and Delhi CS, Ont.JanFebMarAprMayJunJulAugSepOctNovDec-10°F-10°F0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F59137926-1162NowNowKitchener/Waterloo AirportKitchener/Waterloo AirportMount Forest, Ont.Mount Forest, Ont.Delhi CS, Ont.Delhi CS, Ont.WaterlooWaterloo
The daily average high and low air temperature at 2 meters above the ground. The thin dotted lines are the corresponding perceived temperatures.
HighJanFebMarAprMayJunJulAugSepOctNovDec
Waterloo 27°F29°F39°F54°F65°F74°F78°F76°F69°F56°F44°F32°F
Kitchener/Waterloo Airport 28°F30°F40°F54°F66°F75°F79°F77°F69°F56°F44°F33°F
Mount Forest, Ont. 25°F27°F36°F51°F63°F72°F76°F74°F66°F54°F41°F30°F
Delhi CS, Ont. 30°F31°F41°F55°F67°F76°F80°F77°F70°F58°F46°F35°F
LowJanFebMarAprMayJunJulAugSepOctNovDec
Waterloo 15°F15°F23°F35°F45°F54°F58°F57°F49°F39°F30°F21°F
Kitchener/Waterloo Airport 15°F15°F23°F35°F45°F54°F59°F57°F50°F39°F30°F21°F
Mount Forest, Ont. 13°F13°F22°F34°F45°F53°F58°F57°F50°F40°F30°F20°F
Delhi CS, Ont. 17°F18°F26°F36°F47°F56°F60°F58°F51°F42°F33°F24°F

Waterloo

Average Hourly Temperature in WaterlooJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingfreezingvery coldcoldcoolwarmvery coldcomfortable

Kitchener/Waterloo Airport

Average Hourly Temperature in Kitchener/Waterloo AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingfreezingvery coldcoldcoolwarmvery coldcomfortable

Mount Forest, Ont.

Average Hourly Temperature in Mount Forest, Ont.JanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingfreezingvery coldcoldcoolcomfortablevery cold

Delhi CS, Ont.

Average Hourly Temperature in Delhi CS, Ont.JanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldcoldcoolwarmvery coldfreezingcomfortable
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

Compare the Chance of Clearer Skies in Waterloo; Kitchener/Waterloo Airport; Mount Forest, Ont.; and Delhi CS, Ont.JanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%66326623NowNowKitchener/Waterloo AirportKitchener/Waterloo AirportMount Forest, Ont.Mount Forest, Ont.Delhi CS, Ont.Delhi CS, Ont.WaterlooWaterloo
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
Waterloo 33%36%43%46%49%55%62%65%62%54%44%35%
Kitchener/Waterloo Airport 34%37%43%46%49%55%63%65%62%55%44%37%
Mount Forest, Ont. 24%29%39%45%48%54%63%65%60%51%39%28%
Delhi CS, Ont. 33%37%43%46%50%56%64%66%64%57%46%37%

Daily Chance of Precipitation

Compare the Daily Chance of Precipitation in Waterloo; Kitchener/Waterloo Airport; Mount Forest, Ont.; and Delhi CS, Ont.JanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%3116153133NowNowKitchener/Waterloo AirportKitchener/Waterloo AirportMount Forest, Ont.Mount Forest, Ont.Delhi CS, Ont.Delhi CS, Ont.WaterlooWaterloo
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip.JanFebMarAprMayJunJulAugSepOctNovDec
Waterloo 5.8d4.7d5.9d7.3d8.7d8.6d8.9d8.4d8.3d8.5d6.5d6.4d
Kitchener/Waterloo Airport 5.6d4.7d5.9d7.3d8.7d8.6d8.9d8.4d8.3d8.4d6.5d6.4d
Mount Forest, Ont. 5.8d4.9d5.6d6.9d8.3d8.2d8.4d7.9d8.7d8.7d7.1d6.6d
Delhi CS, Ont. 5.5d4.8d6.6d8.4d9.6d9.4d9.1d8.7d9.2d9.4d7.4d7.1d

Average Monthly Rainfall

Compare the Average Monthly Rainfall in Waterloo; Kitchener/Waterloo Airport; Mount Forest, Ont.; and Delhi CS, Ont.JanFebMarAprMayJunJulAugSepOctNovDec0.0 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 in2.50.5NowNowKitchener/Waterloo AirportKitchener/Waterloo AirportMount Forest, Ont.Mount Forest, Ont.Delhi CS, Ont.Delhi CS, Ont.WaterlooWaterloo
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
RainfallJanFebMarAprMayJunJulAugSepOctNovDec
Waterloo 0.5″0.5″0.9″1.6″2.1″2.3″2.3″2.1″2.4″2.2″1.5″0.9″
Kitchener/Waterloo Airport 0.5″0.5″0.8″1.6″2.1″2.3″2.3″2.1″2.4″2.2″1.5″0.9″
Mount Forest, Ont. 0.5″0.5″0.8″1.5″2.0″2.1″2.1″2.0″2.5″2.1″1.5″0.8″
Delhi CS, Ont. 0.6″0.6″0.9″1.6″2.1″2.3″2.2″2.0″2.5″2.2″1.5″0.9″

Average Monthly Snowfall

Compare the Average Monthly Snowfall in Waterloo; Kitchener/Waterloo Airport; Mount Forest, Ont.; and Delhi CS, Ont.JanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 in5.56.24.5NowNowKitchener/Waterloo AirportKitchener/Waterloo AirportMount Forest, Ont.Mount Forest, Ont.Delhi CS, Ont.Delhi CS, Ont.WaterlooWaterloo
The average snowfall accumulated over the course of a sliding 31-day period centered on the day in question.
SnowfallJanFebMarAprMayJunJulAugSepOctNovDec
Waterloo 5.4″5.3″4.2″1.3″0.0″0.0″0.0″0.0″0.0″0.2″1.7″4.8″
Kitchener/Waterloo Airport 5.2″5.2″4.1″1.3″0.0″0.0″0.0″0.0″0.0″0.1″1.5″4.5″
Mount Forest, Ont. 6.2″5.9″4.1″1.5″0.0″0.0″0.0″0.0″0.0″0.4″2.7″5.6″
Delhi CS, Ont. 4.4″4.3″3.8″1.0″0.0″0.0″0.0″0.0″0.0″0.1″1.5″4.1″

Hours of Daylight

Compare the Hours of Daylight in Waterloo; Kitchener/Waterloo Airport; Mount Forest, Ont.; and Delhi CS, Ont.JanFebMarAprMayJunJulAugSepOctNovDec4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr15.48.9NowNowKitchener/Waterloo AirportKitchener/Waterloo AirportMount Forest, Ont.Mount Forest, Ont.Delhi CS, Ont.Delhi CS, Ont.WaterlooWaterloo
The number of hours during which the Sun is at least partly above the horizon.
DaylightJanFebMarAprMayJunJulAugSepOctNovDec
Waterloo 9.4h10.5h12.0h13.5h14.7h15.4h15.0h13.9h12.5h11.0h9.7h9.0h
Kitchener/Waterloo Airport 9.4h10.5h12.0h13.5h14.7h15.4h15.0h13.9h12.5h11.0h9.7h9.0h
Mount Forest, Ont. 9.3h10.5h12.0h13.5h14.8h15.4h15.1h13.9h12.5h11.0h9.6h9.0h
Delhi CS, Ont. 9.4h10.6h12.0h13.4h14.7h15.3h15.0h13.9h12.5h11.0h9.7h9.1h

Chance of Muggy Conditions

Compare the Chance of Muggy Conditions in Waterloo; Kitchener/Waterloo Airport; Mount Forest, Ont.; and Delhi CS, Ont.JanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%2230NowNowMount Forest, Ont.Mount Forest, Ont.Delhi CS, Ont.Delhi CS, Ont.WaterlooWaterloo
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).
Muggy daysJanFebMarAprMayJunJulAugSepOctNovDec
Waterloo 0.0d0.0d0.0d0.0d0.6d3.1d6.4d5.4d2.1d0.1d0.0d0.0d
Kitchener/Waterloo Airport 0.0d0.0d0.0d0.0d0.6d3.2d6.6d5.6d2.2d0.1d0.0d0.0d
Mount Forest, Ont. 0.0d0.0d0.0d0.0d0.4d2.5d5.4d4.4d1.8d0.1d0.0d0.0d
Delhi CS, Ont. 0.0d0.0d0.0d0.1d0.7d3.9d8.5d7.6d3.0d0.2d0.0d0.0d

Average Wind Speed

Compare the Average Wind Speed in Waterloo; Kitchener/Waterloo Airport; Mount Forest, Ont.; and Delhi CS, Ont.JanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph14.08.515.39.2NowNowKitchener/Waterloo AirportKitchener/Waterloo AirportMount Forest, Ont.Mount Forest, Ont.Delhi CS, Ont.Delhi CS, Ont.WaterlooWaterloo
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph)JanFebMarAprMayJunJulAugSepOctNovDec
Waterloo 13.913.613.112.210.59.68.98.79.611.012.112.9
Kitchener/Waterloo Airport 13.713.512.912.010.39.48.88.59.510.811.912.8
Mount Forest, Ont. 14.113.913.312.210.39.48.98.79.711.112.313.2
Delhi CS, Ont. 15.014.013.312.510.910.19.69.410.612.413.714.5

Average Water Temperature

Compare the Average Water Temperature in Waterloo; Kitchener/Waterloo Airport; Mount Forest, Ont.; and Delhi CS, Ont.JanFebMarAprMayJunJulAugSepOctNovDec30°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F73336834NowNowKitchener/Waterloo AirportKitchener/Waterloo AirportMount Forest, Ont.Mount Forest, Ont.Delhi CS, Ont.Delhi CS, Ont.
The daily average wide-area surface water temperature.
Water Temp.JanFebMarAprMayJunJulAugSepOctNovDec
Waterloo 36°F34°F34°F39°F49°F62°F71°F73°F68°F59°F50°F42°F
Kitchener/Waterloo Airport 36°F34°F34°F39°F49°F62°F71°F73°F68°F59°F50°F42°F
Mount Forest, Ont. 38°F35°F34°F36°F41°F52°F64°F68°F64°F56°F48°F42°F
Delhi CS, Ont. 36°F34°F34°F39°F49°F62°F71°F73°F68°F59°F50°F42°F

Tourism Score

Compare the Tourism Score in Waterloo; Kitchener/Waterloo Airport; Mount Forest, Ont.; and Delhi CS, Ont.JanFebMarAprMayJunJulAugSepOctNovDec002244668810106.7NowNowKitchener/Waterloo AirportKitchener/Waterloo AirportMount Forest, Ont.Mount Forest, Ont.Delhi CS, Ont.Delhi CS, Ont.WaterlooWaterloo
The tourism score, which favors clear, rainless days with perceived temperatures between 65°F and 80°F.

Beach/Pool Score

Compare the Beach/Pool Score in Waterloo; Kitchener/Waterloo Airport; Mount Forest, Ont.; and Delhi CS, Ont.JanFebMarAprMayJunJulAugSepOctNovDec002244668810104.5NowNowKitchener/Waterloo AirportKitchener/Waterloo AirportMount Forest, Ont.Mount Forest, Ont.Delhi CS, Ont.Delhi CS, Ont.WaterlooWaterloo
The beach/pool score, which favors clear, rainless days with perceived temperatures between 75°F and 90°F.

Growing Season

Compare the Growing Season in Waterloo; Kitchener/Waterloo Airport; Mount Forest, Ont.; and Delhi CS, Ont.JanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowKitchener/Waterloo AirportKitchener/Waterloo AirportMount Forest, Ont.Mount Forest, Ont.Delhi CS, Ont.Delhi CS, Ont.WaterlooWaterloo
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

Compare the Growing Degree Days in Waterloo; Kitchener/Waterloo Airport; Mount Forest, Ont.; and Delhi CS, Ont.JanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°FNowNowMount Forest, Ont.Mount Forest, Ont.Delhi CS, Ont.Delhi CS, Ont.WaterlooWaterloo
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

Compare the Average Daily Incident Shortwave Solar Energy in Waterloo; Kitchener/Waterloo Airport; Mount Forest, Ont.; and Delhi CS, Ont.JanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh7.01.3NowNowKitchener/Waterloo AirportKitchener/Waterloo AirportMount Forest, Ont.Mount Forest, Ont.Delhi CS, Ont.Delhi CS, Ont.WaterlooWaterloo
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh)JanFebMarAprMayJunJulAugSepOctNovDec
Waterloo 1.62.53.85.26.26.86.75.94.73.11.81.3
Kitchener/Waterloo Airport 1.62.53.85.26.26.86.75.94.73.11.91.3
Mount Forest, Ont. 1.42.33.75.16.26.86.85.94.63.01.71.2
Delhi CS, Ont. 1.62.53.85.26.36.96.86.04.73.21.91.4

This report illustrates the typical weather for Waterloo; Kitchener/Waterloo Airport; Mount Forest, Ont.; and Delhi CS, Ont. 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:

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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.

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