Compare the Climate and Weather in Radnor, Wings Field, Philadelphia International Airport, Pottstown Limerick Airport, and Chester County G O Carlson Airport

This page lets you compare and contrast the weather and climate in Radnor, Wings Field, Philadelphia International Airport, Pottstown Limerick Airport, and Chester County G O Carlson Airport year round.

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

You can compare up to 6 locations. Add more locations using the search box below or by clicking the map.

Average High and Low Temperature

Compare the Average High and Low Temperature in Radnor, Wings Field, Philadelphia International Airport, Pottstown Limerick Airport, and Chester County G O Carlson AirportJanFebMarAprMayJunJulAugSepOctNovDec10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F6724863971163589NowNowPhiladelphia International AirportPhiladelphia International AirportPottstown Limerick AirportPottstown Limerick AirportRadnorRadnorWings FieldWings FieldChester County G O Carlson AirportChester County G O Carlson 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
Radnor 39°F42°F52°F63°F73°F81°F85°F83°F76°F65°F54°F44°F
Wings Field 40°F43°F53°F64°F74°F82°F86°F84°F77°F65°F55°F45°F
Philadelphia International Airport 41°F44°F53°F64°F74°F82°F87°F84°F77°F66°F55°F46°F
Pottstown Limerick Airport 39°F42°F51°F63°F73°F81°F85°F82°F75°F64°F53°F43°F
Chester County G O Carlson Airport 39°F42°F51°F62°F72°F80°F84°F81°F74°F64°F53°F43°F
LowJanFebMarAprMayJunJulAugSepOctNovDec
Radnor 25°F27°F34°F43°F53°F62°F66°F65°F57°F46°F37°F30°F
Wings Field 25°F27°F34°F43°F52°F61°F65°F64°F56°F45°F37°F30°F
Philadelphia International Airport 28°F29°F36°F46°F56°F65°F70°F69°F62°F51°F41°F33°F
Pottstown Limerick Airport 24°F25°F33°F42°F52°F61°F66°F64°F56°F45°F37°F29°F
Chester County G O Carlson Airport 25°F27°F34°F43°F53°F62°F66°F64°F57°F46°F37°F30°F

Radnor

Average Hourly Temperature in RadnorJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldvery coldcoldcoolcoolcomfortablewarmfreezingfreezing

Wings Field

Average Hourly Temperature in Wings FieldJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldvery coldcoldcoolcoolcomfortablewarmfreezing

Philadelphia International Airport

Average Hourly Temperature in Philadelphia International AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldvery coldcoldcoolcomfortablewarmhot

Pottstown Limerick Airport

Average Hourly Temperature in Pottstown Limerick AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldvery coldcoldcoolcoolcomfortablewarmfreezingfreezing

Chester County G O Carlson Airport

Average Hourly Temperature in Chester County G O Carlson AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldvery coldcoldcoolcoolcomfortablewarmfreezingfreezing
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 Radnor, Wings Field, Philadelphia International Airport, Pottstown Limerick Airport, and Chester County G O Carlson AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%644665NowNowPhiladelphia International AirportPhiladelphia International AirportPottstown Limerick AirportPottstown Limerick AirportRadnorRadnorWings FieldWings FieldChester County G O Carlson AirportChester County G O Carlson 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
Radnor 47%47%49%50%51%53%59%63%63%62%54%48%
Wings Field 47%47%49%50%51%53%59%63%64%62%54%48%
Philadelphia International Airport 47%48%50%51%51%54%59%63%63%62%55%48%
Pottstown Limerick Airport 46%47%49%50%51%53%59%63%63%62%53%47%
Chester County G O Carlson Airport 46%47%49%50%51%54%59%63%64%62%54%47%

Daily Chance of Precipitation

Compare the Daily Chance of Precipitation in Radnor, Wings Field, Philadelphia International Airport, Pottstown Limerick Airport, and Chester County G O Carlson AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%3722372139NowNowPhiladelphia International AirportPhiladelphia International AirportPottstown Limerick AirportPottstown Limerick AirportRadnorRadnorWings FieldWings FieldChester County G O Carlson AirportChester County G O Carlson Airport
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip.JanFebMarAprMayJunJulAugSepOctNovDec
Radnor 7.1d6.8d8.2d8.8d10.2d10.7d11.1d10.0d8.1d7.3d7.5d7.7d
Wings Field 7.1d6.8d8.3d8.8d10.2d10.8d11.3d10.1d8.2d7.4d7.5d7.8d
Philadelphia International Airport 7.2d7.0d8.3d8.9d10.0d10.6d11.0d10.2d8.4d7.6d7.7d7.7d
Pottstown Limerick Airport 6.9d6.6d8.1d8.9d10.5d11.2d11.3d9.9d8.1d7.6d7.5d7.7d
Chester County G O Carlson Airport 6.9d6.5d8.1d8.7d10.4d10.9d11.1d9.9d8.3d7.6d7.4d7.5d

Average Monthly Rainfall

Compare the Average Monthly Rainfall in Radnor, Wings Field, Philadelphia International Airport, Pottstown Limerick Airport, and Chester County G O Carlson AirportJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in3.81.93.8NowNowPhiladelphia International AirportPhiladelphia International AirportPottstown Limerick AirportPottstown Limerick AirportRadnorRadnorWings FieldWings FieldChester County G O Carlson AirportChester County G O Carlson Airport
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
RainfallJanFebMarAprMayJunJulAugSepOctNovDec
Radnor 2.1″2.0″3.0″3.5″3.4″3.6″3.7″3.5″3.7″3.4″3.2″2.9″
Wings Field 2.2″2.1″3.1″3.5″3.4″3.6″3.7″3.5″3.7″3.4″3.2″3.0″
Philadelphia International Airport 2.2″2.2″3.2″3.5″3.3″3.5″3.6″3.5″3.6″3.3″3.2″3.0″
Pottstown Limerick Airport 2.0″1.9″2.8″3.5″3.5″3.7″3.7″3.5″3.8″3.5″3.3″2.9″
Chester County G O Carlson Airport 2.0″1.9″2.8″3.4″3.5″3.6″3.6″3.4″3.8″3.4″3.1″2.8″

Average Monthly Snowfall

Compare the Average Monthly Snowfall in Radnor, Wings Field, Philadelphia International Airport, Pottstown Limerick Airport, and Chester County G O Carlson AirportJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in7.66.88.2NowNowPhiladelphia International AirportPhiladelphia International AirportPottstown Limerick AirportPottstown Limerick AirportWings FieldWings FieldChester County G O Carlson AirportChester County G O Carlson Airport
The average snowfall accumulated over the course of a sliding 31-day period centered on the day in question.
SnowfallJanFebMarAprMayJunJulAugSepOctNovDec
Radnor 7.0″7.1″3.1″0.2″0.0″0.0″0.0″0.0″0.0″0.0″0.9″4.2″
Wings Field 6.3″6.3″2.6″0.2″0.0″0.0″0.0″0.0″0.0″0.0″0.9″3.9″
Philadelphia International Airport 6.1″5.9″2.1″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.6″3.1″
Pottstown Limerick Airport 7.5″7.5″3.5″0.3″0.0″0.0″0.0″0.0″0.0″0.1″0.9″4.2″
Chester County G O Carlson Airport 6.9″7.7″3.7″0.3″0.0″0.0″0.0″0.0″0.0″0.1″1.1″4.5″

Hours of Daylight

Compare the Hours of Daylight in Radnor, Wings Field, Philadelphia International Airport, Pottstown Limerick Airport, and Chester County G O Carlson AirportJanFebMarAprMayJunJulAugSepOctNovDec4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr15.09.3NowNowPhiladelphia International AirportPhiladelphia International AirportPottstown Limerick AirportPottstown Limerick AirportRadnorRadnorWings FieldWings FieldChester County G O Carlson AirportChester County G O Carlson Airport
The number of hours during which the Sun is at least partly above the horizon.
DaylightJanFebMarAprMayJunJulAugSepOctNovDec
Radnor 9.7h10.7h12.0h13.3h14.4h15.0h14.7h13.7h12.4h11.1h10.0h9.4h
Wings Field 9.7h10.7h12.0h13.3h14.4h15.0h14.7h13.7h12.4h11.1h10.0h9.4h
Philadelphia International Airport 9.7h10.7h12.0h13.3h14.4h15.0h14.7h13.7h12.4h11.1h10.0h9.4h
Pottstown Limerick Airport 9.7h10.7h12.0h13.3h14.4h15.0h14.7h13.7h12.4h11.1h9.9h9.4h
Chester County G O Carlson Airport 9.7h10.7h12.0h13.3h14.4h15.0h14.7h13.7h12.4h11.1h10.0h9.4h

Chance of Muggy Conditions

Compare the Chance of Muggy Conditions in Radnor, Wings Field, Philadelphia International Airport, Pottstown Limerick Airport, and Chester County G O Carlson AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%545862NowNowPhiladelphia International AirportPhiladelphia International AirportPottstown Limerick AirportPottstown Limerick AirportRadnorRadnorWings FieldWings FieldChester County G O Carlson AirportChester County G O Carlson Airport
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).
Muggy daysJanFebMarAprMayJunJulAugSepOctNovDec
Radnor 0.0d0.0d0.0d0.1d2.1d8.4d15.2d13.5d6.6d1.3d0.1d0.0d
Wings Field 0.0d0.0d0.0d0.1d2.0d8.0d14.5d12.9d6.6d1.4d0.2d0.0d
Philadelphia International Airport 0.0d0.0d0.0d0.1d2.4d9.6d16.9d14.7d7.1d1.5d0.1d0.0d
Pottstown Limerick Airport 0.0d0.0d0.0d0.1d2.0d8.4d15.2d13.5d5.9d1.0d0.1d0.0d
Chester County G O Carlson Airport 0.0d0.0d0.0d0.3d3.9d11.1d18.1d15.8d7.4d1.5d0.1d0.0d

Average Wind Speed

Compare the Average Wind Speed in Radnor, Wings Field, Philadelphia International Airport, Pottstown Limerick Airport, and Chester County G O Carlson AirportJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mph9 mph9 mph10 mph10 mph8.14.79.35.67.23.9NowNowPhiladelphia International AirportPhiladelphia International AirportPottstown Limerick AirportPottstown Limerick AirportWings FieldWings FieldChester County G O Carlson AirportChester County G O Carlson Airport
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph)JanFebMarAprMayJunJulAugSepOctNovDec
Radnor 7.57.97.97.26.05.34.94.85.36.06.67.0
Wings Field 7.57.97.87.16.05.24.84.75.26.06.56.9
Philadelphia International Airport 8.79.19.28.57.26.35.85.76.47.37.98.2
Pottstown Limerick Airport 6.77.17.06.25.14.44.14.04.55.15.76.1
Chester County G O Carlson Airport 7.37.77.66.85.74.94.54.45.05.76.36.7

Average Water Temperature

Compare the Average Water Temperature in Radnor, Wings Field, Philadelphia International Airport, Pottstown Limerick Airport, and Chester County G O Carlson AirportJanFebMarAprMayJunJulAugSepOctNovDec35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F7439NowNowPhiladelphia International AirportPhiladelphia International AirportPottstown Limerick AirportPottstown Limerick AirportRadnorRadnorWings FieldWings FieldChester County G O Carlson AirportChester County G O Carlson Airport
The daily average wide-area surface water temperature.
Water Temp.JanFebMarAprMayJunJulAugSepOctNovDec
Radnor 41°F39°F42°F48°F57°F66°F73°F74°F71°F63°F55°F47°F
Wings Field 41°F39°F42°F48°F57°F66°F73°F74°F71°F63°F55°F47°F
Philadelphia International Airport 42°F39°F42°F48°F56°F66°F73°F74°F71°F64°F55°F47°F
Pottstown Limerick Airport 41°F39°F42°F48°F57°F66°F73°F74°F71°F63°F55°F47°F
Chester County G O Carlson Airport 41°F39°F42°F48°F56°F66°F73°F74°F71°F63°F55°F47°F

Tourism Score

Compare the Tourism Score in Radnor, Wings Field, Philadelphia International Airport, Pottstown Limerick Airport, and Chester County G O Carlson AirportJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.60.2NowNowPhiladelphia International AirportPhiladelphia International AirportPottstown Limerick AirportPottstown Limerick AirportRadnorRadnorWings FieldWings FieldChester County G O Carlson AirportChester County G O Carlson 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 Radnor, Wings Field, Philadelphia International Airport, Pottstown Limerick Airport, and Chester County G O Carlson AirportJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.9NowNowPhiladelphia International AirportPhiladelphia International AirportPottstown Limerick AirportPottstown Limerick AirportRadnorRadnorWings FieldWings Field
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 Radnor, Wings Field, Philadelphia International Airport, Pottstown Limerick Airport, and Chester County G O Carlson AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowPhiladelphia International AirportPhiladelphia International AirportPottstown Limerick AirportPottstown Limerick AirportRadnorRadnorWings FieldWings FieldChester County G O Carlson AirportChester County G O Carlson 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 Radnor, Wings Field, Philadelphia International Airport, Pottstown Limerick Airport, and Chester County G O Carlson AirportJanFebMarAprMayJunJulAugSepOctNovDec1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°FNowNowPhiladelphia International AirportPhiladelphia International AirportPottstown Limerick AirportPottstown Limerick AirportRadnorRadnorWings FieldWings FieldChester County G O Carlson AirportChester County G O Carlson 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 Radnor, Wings Field, Philadelphia International Airport, Pottstown Limerick Airport, and Chester County G O Carlson AirportJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh6.91.8NowNowPhiladelphia International AirportPhiladelphia International AirportPottstown Limerick AirportPottstown Limerick AirportRadnorRadnorWings FieldWings FieldChester County G O Carlson AirportChester County G O Carlson Airport
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh)JanFebMarAprMayJunJulAugSepOctNovDec
Radnor 2.13.04.25.46.36.86.66.05.03.72.51.9
Wings Field 2.13.04.25.46.36.86.66.05.03.72.51.9
Philadelphia International Airport 2.23.14.25.56.36.86.66.05.03.72.51.9
Pottstown Limerick Airport 2.13.04.25.46.36.86.66.05.03.72.41.9
Chester County G O Carlson Airport 2.13.04.25.46.36.86.76.05.03.72.51.9

This report illustrates the typical weather for Radnor, Wings Field, Philadelphia International Airport, Pottstown Limerick Airport, and Chester County G O Carlson 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.

Please review our full terms contained on our Terms of Service page.