Compare the Climate and Weather in Madison, Dane County Regional Airport, Monroe Municipal Airport, Southern Wisconsin Regional Airport, Tri-County Regional Airport, and Iowa County Airport

This page lets you compare and contrast the weather and climate in Madison, Dane County Regional Airport, Monroe Municipal Airport, Southern Wisconsin Regional Airport, Tri-County Regional Airport, and Iowa County Airport year round.

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

Map
(will replace Iowa County Airport)

Average High and Low Temperature

Compare the Average High and Low Temperature in Madison, Dane County Regional Airport, Monroe Municipal Airport, Southern Wisconsin Regional Airport, Tri-County Regional Airport, and Iowa County AirportJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F64138227-01886NowNowTri-County Regional AirportTri-County Regional AirportIowa County AirportIowa County AirportDane County Regional AirportDane County Regional AirportMadisonMadisonMonroe Municipal AirportMonroe Municipal Airport
The daily average high and low air temperature at 2 meters above the ground. The thin dotted lines are the corresponding perceived temperatures.
HighJanFebMarAprMayJunJulAugSepOctNovDec
Madison 28°F32°F45°F59°F70°F79°F82°F80°F72°F59°F45°F32°F
Dane County Regional Airport 28°F32°F44°F58°F70°F79°F82°F80°F72°F59°F45°F32°F
Monroe Municipal Airport 28°F32°F45°F59°F70°F79°F82°F80°F72°F60°F46°F33°F
Southern Wisconsin Regional Airport 29°F34°F46°F60°F71°F80°F83°F81°F74°F61°F47°F34°F
Tri-County Regional Airport 28°F33°F46°F60°F71°F80°F83°F81°F73°F60°F46°F32°F
Iowa County Airport 29°F33°F45°F59°F70°F79°F82°F80°F73°F60°F46°F32°F
LowJanFebMarAprMayJunJulAugSepOctNovDec
Madison 14°F17°F28°F39°F49°F59°F63°F61°F53°F42°F30°F19°F
Dane County Regional Airport 14°F17°F27°F38°F49°F58°F63°F61°F52°F41°F30°F19°F
Monroe Municipal Airport 14°F18°F28°F39°F50°F59°F63°F61°F53°F42°F31°F19°F
Southern Wisconsin Regional Airport 15°F19°F29°F39°F49°F59°F63°F61°F53°F42°F32°F21°F
Tri-County Regional Airport 12°F16°F27°F38°F48°F58°F61°F60°F51°F40°F29°F17°F
Iowa County Airport 14°F18°F29°F40°F50°F60°F64°F62°F54°F43°F31°F19°F

Madison

Average Hourly Temperature in MadisonJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingfreezingcoldcoolwarmvery coldvery coldcomfortablecomfortable

Dane County Regional Airport

Average Hourly Temperature in Dane County Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingfreezingcoldcoolwarmvery coldvery coldcomfortablecomfortable

Monroe Municipal Airport

Average Hourly Temperature in Monroe Municipal AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingfreezingcoldcoolwarmvery coldvery coldcomfortablecomfortable

Southern Wisconsin Regional Airport

Average Hourly Temperature in Southern Wisconsin Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingfreezingcoldcoolwarmvery coldvery coldcomfortablecomfortable

Tri-County Regional Airport

Average Hourly Temperature in Tri-County Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingfreezingcoldcoolwarmvery coldvery coldfrigidcomfortablecomfortable

Iowa County Airport

Average Hourly Temperature in Iowa County AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingfreezingcoldcoolcoolwarmvery coldvery coldcomfortable
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 Madison, Dane County Regional Airport, Monroe Municipal Airport, Southern Wisconsin Regional Airport, Tri-County Regional Airport, and Iowa County AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%67406840NowNowTri-County Regional AirportTri-County Regional AirportIowa County AirportIowa County AirportDane County Regional AirportDane County Regional AirportSouthern Wisconsin Regional AirportSouthern Wisconsin Regional AirportMonroe Municipal AirportMonroe Municipal 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
Madison 40%42%46%47%50%57%65%67%65%56%47%41%
Dane County Regional Airport 41%42%46%47%50%57%65%67%65%56%47%41%
Monroe Municipal Airport 42%44%47%48%51%58%66%68%66%57%48%42%
Southern Wisconsin Regional Airport 42%43%47%47%50%57%65%67%66%57%48%42%
Tri-County Regional Airport 41%42%46%47%51%59%67%68%65%57%47%42%
Iowa County Airport 42%43%47%48%51%59%67%68%66%57%47%42%

Daily Chance of Precipitation

Compare the Daily Chance of Precipitation in Madison, Dane County Regional Airport, Monroe Municipal Airport, Southern Wisconsin Regional Airport, Tri-County Regional Airport, and Iowa County AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%3812NowNowIowa County AirportIowa County AirportDane County Regional AirportDane County Regional AirportSouthern Wisconsin Regional AirportSouthern Wisconsin Regional AirportMadisonMadisonMonroe Municipal AirportMonroe Municipal Airport
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip.JanFebMarAprMayJunJulAugSepOctNovDec
Madison 4.4d3.9d6.2d8.9d10.5d11.3d11.1d10.6d8.6d7.1d6.0d5.4d
Dane County Regional Airport 4.4d3.9d6.3d9.0d10.6d11.3d10.9d10.5d8.7d7.0d5.9d5.4d
Monroe Municipal Airport 4.3d4.1d6.1d8.6d10.7d11.5d10.9d10.4d8.6d7.1d6.0d5.3d
Southern Wisconsin Regional Airport 4.5d4.1d6.3d8.8d11.0d11.3d10.8d10.3d8.6d7.1d6.2d5.7d
Tri-County Regional Airport 3.9d3.7d6.0d8.9d10.7d11.5d11.5d10.6d8.8d7.1d5.8d4.8d
Iowa County Airport 4.1d3.9d6.2d8.6d10.6d11.4d11.3d10.6d8.7d6.9d6.0d4.9d

Average Monthly Rainfall

Compare the Average Monthly Rainfall in Madison, Dane County Regional Airport, Monroe Municipal Airport, Southern Wisconsin Regional Airport, Tri-County Regional Airport, and Iowa County AirportJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in4.20.4NowNowTri-County Regional AirportTri-County Regional AirportDane County Regional AirportDane County Regional AirportSouthern Wisconsin Regional AirportSouthern Wisconsin Regional AirportMadisonMadisonMonroe Municipal AirportMonroe Municipal Airport
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
RainfallJanFebMarAprMayJunJulAugSepOctNovDec
Madison 0.4″0.6″1.5″2.9″3.3″4.1″3.6″3.6″3.2″2.4″1.8″0.9″
Dane County Regional Airport 0.4″0.6″1.5″2.9″3.3″4.1″3.6″3.5″3.2″2.4″1.7″0.8″
Monroe Municipal Airport 0.4″0.7″1.5″2.9″3.3″4.2″3.5″3.6″3.1″2.4″1.8″0.9″
Southern Wisconsin Regional Airport 0.5″0.8″1.6″2.9″3.3″4.0″3.5″3.6″3.1″2.5″1.9″1.1″
Tri-County Regional Airport 0.3″0.5″1.5″3.0″3.3″4.2″3.7″3.7″3.2″2.2″1.7″0.8″
Iowa County Airport 0.4″0.6″1.5″3.0″3.3″4.2″3.6″3.7″3.2″2.3″1.8″0.8″

Average Monthly Snowfall

Compare the Average Monthly Snowfall in Madison, Dane County Regional Airport, Monroe Municipal Airport, Southern Wisconsin Regional Airport, Tri-County Regional Airport, and Iowa County AirportJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in5.24.44.7NowNowTri-County Regional AirportTri-County Regional AirportIowa County AirportIowa County AirportDane County Regional AirportDane County Regional AirportSouthern Wisconsin Regional AirportSouthern Wisconsin Regional AirportMadisonMadisonMonroe Municipal AirportMonroe Municipal Airport
The average snowfall accumulated over the course of a sliding 31-day period centered on the day in question.
SnowfallJanFebMarAprMayJunJulAugSepOctNovDec
Madison 4.7″4.6″2.6″0.6″0.0″0.0″0.0″0.0″0.0″0.1″1.8″5.1″
Dane County Regional Airport 4.7″4.7″2.7″0.7″0.0″0.0″0.0″0.0″0.0″0.1″1.9″5.2″
Monroe Municipal Airport 4.6″4.3″2.4″0.6″0.0″0.0″0.0″0.0″0.0″0.1″1.8″5.1″
Southern Wisconsin Regional Airport 4.1″3.4″1.9″0.5″0.0″0.0″0.0″0.0″0.0″0.0″1.2″4.2″
Tri-County Regional Airport 4.3″4.0″2.4″0.4″0.0″0.0″0.0″0.0″0.0″0.1″1.7″4.7″
Iowa County Airport 4.0″3.9″2.3″0.5″0.0″0.0″0.0″0.0″0.0″0.0″1.5″4.3″

Hours of Daylight

Compare the Hours of Daylight in Madison, Dane County Regional Airport, Monroe Municipal Airport, Southern Wisconsin Regional Airport, Tri-County Regional Airport, and Iowa County AirportJanFebMarAprMayJunJulAugSepOctNovDec4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr15.49.0NowNowTri-County Regional AirportTri-County Regional AirportIowa County AirportIowa County AirportDane County Regional AirportDane County Regional AirportSouthern Wisconsin Regional AirportSouthern Wisconsin Regional AirportMadisonMadisonMonroe Municipal AirportMonroe Municipal Airport
The number of hours during which the Sun is at least partly above the horizon.
DaylightJanFebMarAprMayJunJulAugSepOctNovDec
Madison 9.4h10.6h12.0h13.5h14.7h15.3h15.0h13.9h12.5h11.0h9.7h9.1h
Dane County Regional Airport 9.4h10.5h12.0h13.5h14.7h15.3h15.0h13.9h12.5h11.0h9.7h9.1h
Monroe Municipal Airport 9.5h10.6h12.0h13.4h14.7h15.3h14.9h13.8h12.4h11.0h9.8h9.1h
Southern Wisconsin Regional Airport 9.5h10.6h12.0h13.4h14.7h15.3h14.9h13.8h12.4h11.0h9.8h9.1h
Tri-County Regional Airport 9.4h10.5h12.0h13.5h14.7h15.3h15.0h13.9h12.5h11.0h9.7h9.0h
Iowa County Airport 9.4h10.6h12.0h13.4h14.7h15.3h15.0h13.9h12.4h11.0h9.7h9.1h

Chance of Muggy Conditions

Compare the Chance of Muggy Conditions in Madison, Dane County Regional Airport, Monroe Municipal Airport, Southern Wisconsin Regional Airport, Tri-County Regional Airport, and Iowa County AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%3742NowNowIowa County AirportIowa County AirportDane County Regional AirportDane County Regional AirportSouthern Wisconsin Regional AirportSouthern Wisconsin Regional AirportMadisonMadisonMonroe Municipal AirportMonroe Municipal Airport
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).
Muggy daysJanFebMarAprMayJunJulAugSepOctNovDec
Madison 0.0d0.0d0.0d0.0d1.0d5.4d10.8d9.1d3.4d0.3d0.0d0.0d
Dane County Regional Airport 0.0d0.0d0.0d0.0d0.9d5.1d10.3d8.6d3.1d0.2d0.0d0.0d
Monroe Municipal Airport 0.0d0.0d0.0d0.0d1.4d6.5d12.1d10.6d4.2d0.4d0.0d0.0d
Southern Wisconsin Regional Airport 0.0d0.0d0.0d0.1d1.4d6.4d12.4d10.7d4.0d0.3d0.0d0.0d
Tri-County Regional Airport 0.0d0.0d0.0d0.0d1.0d5.8d11.5d9.7d3.5d0.2d0.0d0.0d
Iowa County Airport 0.0d0.0d0.0d0.0d1.0d5.5d11.1d9.6d3.6d0.4d0.0d0.0d

Average Wind Speed

Compare the Average Wind Speed in Madison, Dane County Regional Airport, Monroe Municipal Airport, Southern Wisconsin Regional Airport, Tri-County Regional Airport, and Iowa County AirportJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph12.58.0NowNowTri-County Regional AirportTri-County Regional AirportIowa County AirportIowa County AirportDane County Regional AirportDane County Regional AirportSouthern Wisconsin Regional AirportSouthern Wisconsin Regional AirportMadisonMadisonMonroe Municipal AirportMonroe Municipal Airport
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph)JanFebMarAprMayJunJulAugSepOctNovDec
Madison 12.212.312.412.110.69.38.58.39.610.811.411.5
Dane County Regional Airport 12.212.312.412.110.69.38.58.39.610.811.411.5
Monroe Municipal Airport 12.012.112.211.910.49.18.17.99.210.511.211.3
Southern Wisconsin Regional Airport 12.112.212.312.110.69.28.28.09.310.611.311.5
Tri-County Regional Airport 12.112.312.211.910.49.28.48.29.510.611.111.3
Iowa County Airport 12.012.212.211.910.49.18.28.09.410.611.111.2

Average Water Temperature

Compare the Average Water Temperature in Madison, Dane County Regional Airport, Monroe Municipal Airport, Southern Wisconsin Regional Airport, Tri-County Regional Airport, and Iowa County AirportJanFebMarAprMayJunJulAugSepOctNovDec30°F30°F35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°FNaN6935NaNNaNNaNNaNNowNowDane County Regional AirportDane County Regional Airport
The daily average wide-area surface water temperature.
Water Temp.JanFebMarAprMayJunJulAugSepOctNovDec
Dane County Regional Airport 37°F36°F36°F39°F44°F54°F65°F69°F64°F54°F45°F40°F

Tourism Score

Compare the Tourism Score in Madison, Dane County Regional Airport, Monroe Municipal Airport, Southern Wisconsin Regional Airport, Tri-County Regional Airport, and Iowa County AirportJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.76.5NowNowTri-County Regional AirportTri-County Regional AirportIowa County AirportIowa County AirportDane County Regional AirportDane County Regional AirportSouthern Wisconsin Regional AirportSouthern Wisconsin Regional AirportMadisonMadisonMonroe Municipal AirportMonroe Municipal Airport
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 Madison, Dane County Regional Airport, Monroe Municipal Airport, Southern Wisconsin Regional Airport, Tri-County Regional Airport, and Iowa County AirportJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.2NowNowTri-County Regional AirportTri-County Regional AirportIowa County AirportIowa County AirportDane County Regional AirportDane County Regional AirportSouthern Wisconsin Regional AirportSouthern Wisconsin Regional AirportMadisonMadisonMonroe Municipal AirportMonroe Municipal Airport
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 Madison, Dane County Regional Airport, Monroe Municipal Airport, Southern Wisconsin Regional Airport, Tri-County Regional Airport, and Iowa County AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowTri-County Regional AirportTri-County Regional AirportIowa County AirportIowa County AirportDane County Regional AirportDane County Regional AirportMadisonMadisonMonroe Municipal AirportMonroe Municipal 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

Compare the Growing Degree Days in Madison, Dane County Regional Airport, Monroe Municipal Airport, Southern Wisconsin Regional Airport, Tri-County Regional Airport, and Iowa County AirportJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°F3,000°F3,000°FNowNowTri-County Regional AirportTri-County Regional AirportIowa County AirportIowa County AirportDane County Regional AirportDane County Regional AirportSouthern Wisconsin Regional AirportSouthern Wisconsin Regional AirportMadisonMadisonMonroe Municipal AirportMonroe Municipal 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

Compare the Average Daily Incident Shortwave Solar Energy in Madison, Dane County Regional Airport, Monroe Municipal Airport, Southern Wisconsin Regional Airport, Tri-County Regional Airport, and Iowa County AirportJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh7.01.6NowNowTri-County Regional AirportTri-County Regional AirportIowa County AirportIowa County AirportDane County Regional AirportDane County Regional AirportSouthern Wisconsin Regional AirportSouthern Wisconsin Regional AirportMadisonMadisonMonroe Municipal AirportMonroe Municipal Airport
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh)JanFebMarAprMayJunJulAugSepOctNovDec
Madison 1.92.94.15.26.26.86.86.04.83.32.11.6
Dane County Regional Airport 1.92.84.15.26.26.86.86.04.83.32.11.6
Monroe Municipal Airport 2.02.94.15.36.26.86.86.04.93.42.11.7
Southern Wisconsin Regional Airport 2.02.94.15.36.26.86.86.04.93.42.11.7
Tri-County Regional Airport 1.92.94.15.26.26.86.86.04.83.32.11.6
Iowa County Airport 2.02.94.15.26.26.86.86.04.83.42.11.7

This report illustrates the typical weather for Madison, Dane County Regional Airport, Monroe Municipal Airport, Southern Wisconsin Regional Airport, Tri-County Regional Airport, and Iowa County 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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