Compare the Climate and Weather in Petersburg, Grant County Airport, Greater Cumberland Regional Airport, Shenandoah Valley Regional Airport, and Winchester Regional Airport

This page lets you compare and contrast the weather and climate in Petersburg, Grant County Airport, Greater Cumberland Regional Airport, Shenandoah Valley Regional Airport, and Winchester Regional Airport 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 Petersburg, Grant County Airport, Greater Cumberland Regional Airport, Shenandoah Valley Regional Airport, and Winchester Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F63248743406617903619NowNowWinchester Regional AirportWinchester Regional AirportPetersburgPetersburgShenandoah Valley Regional AirportShenandoah Valley Regional AirportGrant County AirportGrant County 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
Petersburg 44°F48°F57°F68°F76°F83°F86°F85°F78°F68°F57°F47°F
Grant County Airport 44°F48°F57°F68°F76°F83°F86°F85°F78°F68°F57°F47°F
Greater Cumberland Regional Airport 40°F44°F54°F66°F75°F82°F87°F85°F77°F66°F55°F44°F
Shenandoah Valley Regional Airport 45°F49°F58°F68°F76°F84°F87°F85°F78°F68°F58°F49°F
Winchester Regional Airport 42°F46°F55°F66°F75°F83°F87°F85°F78°F66°F55°F46°F
LowJanFebMarAprMayJunJulAugSepOctNovDec
Petersburg 25°F26°F33°F41°F50°F59°F63°F61°F54°F43°F34°F29°F
Grant County Airport 25°F26°F33°F41°F50°F58°F62°F61°F54°F43°F34°F28°F
Greater Cumberland Regional Airport 25°F27°F34°F43°F52°F60°F64°F63°F55°F45°F36°F29°F
Shenandoah Valley Regional Airport 26°F28°F35°F44°F53°F61°F65°F63°F56°F45°F36°F29°F
Winchester Regional Airport 27°F29°F36°F45°F54°F62°F67°F65°F57°F46°F38°F31°F

Petersburg

Average Hourly Temperature in PetersburgJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldvery coldcoldcoolwarmcomfortablecomfortablefreezing

Grant County Airport

Average Hourly Temperature in Grant County AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldvery coldcoldcoolwarmcomfortablecomfortablefreezing

Greater Cumberland Regional Airport

Average Hourly Temperature in Greater Cumberland Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldvery coldcoldcoldcoolcoolcomfortablewarmfreezing

Shenandoah Valley Regional Airport

Average Hourly Temperature in Shenandoah Valley Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldvery coldcoldcoldcoolcoolcomfortablewarmhotfreezing

Winchester Regional Airport

Average Hourly Temperature in Winchester Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM4 AM4 AM8 AM8 AM12 PM12 PM4 PM4 PM8 PM8 PM12 AM12 AMNowNowfreezingvery coldvery coldcoldcoolcoolcomfortablewarmhot
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 Petersburg, Grant County Airport, Greater Cumberland Regional Airport, Shenandoah Valley Regional Airport, and Winchester Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%6544664847NowNowGreater Cumberland Regional AirportGreater Cumberland Regional AirportWinchester Regional AirportWinchester Regional AirportPetersburgPetersburgShenandoah Valley Regional AirportShenandoah Valley Regional AirportGrant County AirportGrant County 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
Petersburg 44%45%48%49%49%53%58%63%64%60%52%46%
Grant County Airport 44%45%48%49%48%53%58%63%64%60%52%46%
Greater Cumberland Regional Airport 47%48%49%50%50%54%60%64%65%61%53%48%
Shenandoah Valley Regional Airport 50%50%51%52%51%54%58%62%65%63%56%50%
Winchester Regional Airport 48%48%50%51%51%55%59%63%65%62%54%49%

Daily Chance of Precipitation

Compare the Daily Chance of Precipitation in Petersburg, Grant County Airport, Greater Cumberland Regional Airport, Shenandoah Valley Regional Airport, and Winchester Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%432140204139NowNowGreater Cumberland Regional AirportGreater Cumberland Regional AirportPetersburgPetersburgGrant County AirportGrant County Airport
The percentage of days in which precipitation is observed, excluding trace quantities.
Days of Precip.JanFebMarAprMayJunJulAugSepOctNovDec
Petersburg 6.7d7.0d8.9d9.8d12.6d12.3d12.4d10.8d8.2d7.6d7.1d7.6d
Grant County Airport 6.8d7.0d9.0d9.9d12.6d12.3d12.4d10.8d8.3d7.6d7.1d7.6d
Greater Cumberland Regional Airport 6.3d6.3d8.2d9.3d11.3d11.6d11.2d9.7d7.8d6.8d6.7d7.0d
Shenandoah Valley Regional Airport 6.4d6.5d8.2d9.1d11.7d11.6d12.2d10.5d7.7d6.4d6.5d6.8d
Winchester Regional Airport 6.3d6.2d8.0d8.9d11.0d11.3d11.2d9.8d7.7d6.7d6.6d6.7d

Average Monthly Rainfall

Compare the Average Monthly Rainfall in Petersburg, Grant County Airport, Greater Cumberland Regional Airport, Shenandoah Valley Regional Airport, and Winchester Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec0.0 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 in3.71.53.41.31.8NowNowGreater Cumberland Regional AirportGreater Cumberland Regional AirportWinchester Regional AirportWinchester Regional AirportPetersburgPetersburgShenandoah Valley Regional AirportShenandoah Valley Regional AirportGrant County AirportGrant County Airport
The average rainfall accumulated over the course of a sliding 31-day period centered on the day in question.
RainfallJanFebMarAprMayJunJulAugSepOctNovDec
Petersburg 1.5″1.7″2.6″3.2″3.7″3.4″3.2″2.9″2.8″2.7″2.6″2.0″
Grant County Airport 1.5″1.7″2.6″3.2″3.7″3.4″3.2″2.9″2.8″2.7″2.6″2.0″
Greater Cumberland Regional Airport 1.3″1.5″2.5″3.1″3.4″3.1″2.8″2.7″2.8″2.7″2.6″1.9″
Shenandoah Valley Regional Airport 1.9″1.9″2.7″3.2″3.5″3.2″3.1″3.1″3.2″3.0″2.9″2.3″
Winchester Regional Airport 1.5″1.7″2.5″3.1″3.5″3.2″2.9″2.8″3.0″2.8″2.7″2.0″

Average Monthly Snowfall

Compare the Average Monthly Snowfall in Petersburg, Grant County Airport, Greater Cumberland Regional Airport, Shenandoah Valley Regional Airport, and Winchester Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 in8 in8 in6.37.65.9NowNowGreater Cumberland Regional AirportGreater Cumberland Regional AirportWinchester Regional AirportWinchester Regional AirportPetersburgPetersburgShenandoah Valley Regional AirportShenandoah Valley Regional AirportGrant County AirportGrant County Airport
The average snowfall accumulated over the course of a sliding 31-day period centered on the day in question.
SnowfallJanFebMarAprMayJunJulAugSepOctNovDec
Petersburg 5.7″6.2″2.5″0.2″0.0″0.0″0.0″0.0″0.0″0.1″1.2″4.3″
Grant County Airport 5.8″6.2″2.6″0.2″0.0″0.0″0.0″0.0″0.0″0.1″1.3″4.3″
Greater Cumberland Regional Airport 6.4″7.2″2.6″0.2″0.0″0.0″0.0″0.0″0.0″0.1″1.1″4.8″
Shenandoah Valley Regional Airport 5.0″5.8″2.3″0.1″0.0″0.0″0.0″0.0″0.0″0.1″1.0″3.8″
Winchester Regional Airport 5.9″6.4″2.3″0.0″0.0″0.0″0.0″0.0″0.0″0.0″0.9″4.1″

Hours of Daylight

Compare the Hours of Daylight in Petersburg, Grant County Airport, Greater Cumberland Regional Airport, Shenandoah Valley Regional Airport, and Winchester Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec4 hr4 hr6 hr6 hr8 hr8 hr10 hr10 hr12 hr12 hr14 hr14 hr16 hr16 hr18 hr18 hr20 hr20 hr14.99.4NowNowGreater Cumberland Regional AirportGreater Cumberland Regional AirportWinchester Regional AirportWinchester Regional AirportPetersburgPetersburgShenandoah Valley Regional AirportShenandoah Valley Regional AirportGrant County AirportGrant County Airport
The number of hours during which the Sun is at least partly above the horizon.
DaylightJanFebMarAprMayJunJulAugSepOctNovDec
Petersburg 9.8h10.8h12.0h13.3h14.3h14.9h14.6h13.6h12.4h11.1h10.0h9.5h
Grant County Airport 9.8h10.8h12.0h13.3h14.3h14.9h14.6h13.6h12.4h11.1h10.0h9.5h
Greater Cumberland Regional Airport 9.7h10.7h12.0h13.3h14.4h14.9h14.6h13.7h12.4h11.1h10.0h9.4h
Shenandoah Valley Regional Airport 9.8h10.8h12.0h13.2h14.3h14.8h14.5h13.6h12.4h11.2h10.1h9.6h
Winchester Regional Airport 9.8h10.8h12.0h13.3h14.3h14.9h14.6h13.6h12.4h11.1h10.0h9.5h

Chance of Muggy Conditions

Compare the Chance of Muggy Conditions in Petersburg, Grant County Airport, Greater Cumberland Regional Airport, Shenandoah Valley Regional Airport, and Winchester Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%53486358NowNowGreater Cumberland Regional AirportGreater Cumberland Regional AirportWinchester Regional AirportWinchester Regional AirportShenandoah Valley Regional AirportShenandoah Valley Regional AirportGrant County AirportGrant County Airport
The percentage of time that is muggy, oppressive, or miserable (i.e., a dew point greater than 65°F).
Muggy daysJanFebMarAprMayJunJulAugSepOctNovDec
Petersburg 0.0d0.0d0.0d0.2d3.1d10.0d15.7d13.4d5.6d0.6d0.0d0.0d
Grant County Airport 0.0d0.0d0.0d0.2d3.1d10.0d15.6d13.3d5.6d0.7d0.0d0.0d
Greater Cumberland Regional Airport 0.0d0.0d0.0d0.1d2.3d9.0d14.3d11.7d4.9d0.7d0.0d0.0d
Shenandoah Valley Regional Airport 0.0d0.0d0.1d0.3d3.3d10.8d18.2d15.8d7.0d1.3d0.1d0.0d
Winchester Regional Airport 0.0d0.0d0.0d0.2d3.2d10.8d17.2d14.4d6.1d0.9d0.0d0.0d

Average Wind Speed

Compare the Average Wind Speed in Petersburg, Grant County Airport, Greater Cumberland Regional Airport, Shenandoah Valley Regional Airport, and Winchester Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph6.83.26.63.8NowNowGreater Cumberland Regional AirportGreater Cumberland Regional AirportWinchester Regional AirportWinchester Regional AirportPetersburgPetersburgShenandoah Valley Regional AirportShenandoah Valley Regional AirportGrant County AirportGrant County Airport
The average of mean hourly wind speeds at 10 meters above the ground.
Wind Speed (mph)JanFebMarAprMayJunJulAugSepOctNovDec
Petersburg 6.66.76.35.44.23.73.43.23.74.45.15.8
Grant County Airport 6.76.86.35.44.33.73.43.33.74.45.15.9
Greater Cumberland Regional Airport 6.66.86.35.44.33.73.53.33.74.45.15.8
Shenandoah Valley Regional Airport 6.16.46.45.84.84.33.93.84.34.95.45.6
Winchester Regional Airport 6.16.46.35.64.64.13.83.74.24.75.25.5

Tourism Score

Compare the Tourism Score in Petersburg, Grant County Airport, Greater Cumberland Regional Airport, Shenandoah Valley Regional Airport, and Winchester Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.10.3NowNowGreater Cumberland Regional AirportGreater Cumberland Regional AirportWinchester Regional AirportWinchester Regional AirportPetersburgPetersburgGrant County AirportGrant County 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 Petersburg, Grant County Airport, Greater Cumberland Regional Airport, Shenandoah Valley Regional Airport, and Winchester Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.15.8NowNowWinchester Regional AirportWinchester Regional AirportPetersburgPetersburgShenandoah Valley Regional AirportShenandoah Valley Regional AirportGrant County AirportGrant County 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 Petersburg, Grant County Airport, Greater Cumberland Regional Airport, Shenandoah Valley Regional Airport, and Winchester Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec0%0%20%20%40%40%60%60%80%80%100%100%NowNowGreater Cumberland Regional AirportGreater Cumberland Regional AirportWinchester Regional AirportWinchester Regional AirportPetersburgPetersburgShenandoah Valley Regional AirportShenandoah Valley Regional AirportGrant County AirportGrant County 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 Petersburg, Grant County Airport, Greater Cumberland Regional Airport, Shenandoah Valley Regional Airport, and Winchester Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°F3,000°F3,000°F3,500°F3,500°F4,000°F4,000°FNowNowGreater Cumberland Regional AirportGreater Cumberland Regional AirportWinchester Regional AirportWinchester Regional AirportPetersburgPetersburgShenandoah Valley Regional AirportShenandoah Valley Regional AirportGrant County AirportGrant County 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 Petersburg, Grant County Airport, Greater Cumberland Regional Airport, Shenandoah Valley Regional Airport, and Winchester Regional AirportJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh7.02.0NowNowGreater Cumberland Regional AirportGreater Cumberland Regional AirportWinchester Regional AirportWinchester Regional AirportPetersburgPetersburgShenandoah Valley Regional AirportShenandoah Valley Regional AirportGrant County AirportGrant County Airport
The average daily shortwave solar energy reaching the ground per square meter.
Solar Energy (kWh)JanFebMarAprMayJunJulAugSepOctNovDec
Petersburg 2.33.24.45.56.36.86.76.25.23.82.62.0
Grant County Airport 2.33.24.45.56.36.86.76.25.23.82.62.0
Greater Cumberland Regional Airport 2.23.14.35.56.26.86.76.15.13.72.51.9
Shenandoah Valley Regional Airport 2.53.44.65.76.46.96.76.25.23.92.82.2
Winchester Regional Airport 2.33.24.45.56.36.86.76.15.13.82.62.0

This report illustrates the typical weather for Petersburg, Grant County Airport, Greater Cumberland Regional Airport, Shenandoah Valley Regional Airport, and Winchester Regional 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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