TODAY DEC12
TEMPERATURE
HUMIDITY45
PRESSURE30.45
WIND COND.
  • 3527Thu
  • 3835Fri20%70%
  • 4837Sat90%70%
  • 4629Sun40%
  • 3931Mon50%70%
daynightWeather update from Hagerstown, Washington County Regional Airport at
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Williamsport Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January27°F42°F34°F3.7"
February22°F39°F30°F2.4"
March31°F51°F40°F6.5"
April41°F64°F52°F5.9"
May50°F74°F62°F3.6"
June62°F84°F73°F4.8"
July65°F87°F76°F6.4"
August66°F86°F75°F8.4"
September58°F81°F70°F3.6"
October50°F69°F59°F5.5"
November36°F55°F45°F4.8"
December26°F40°F33°F5.1"

Did you know?

  • The highest monthly average temperature in Williamsport for July is 76 degrees.
  • The lowest monthly average temperature in Williamsport for February is 30 degrees.
  • The most monthly precipitation in Williamsport occurs in August with 8.4 inches.
  • The air quality index in Williamsport is 18% better than the national average.
  • The pollution index in Williamsport is 220% worse than the national average.

Compare Williamsport, MD Weather To Other Cities

Williamsport air quality index & pollution index

In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
IndexWilliamsportMarylandNational
Air quality index414350
Pollution index16,230,7006,283,4705,066,862

Williamsport air quality information

MeasurementTotal
Days measured363
Days with good air quality276
Days with moderate air quality84
Days w/ poor A.Q. for sensitive groups3
Days with unhealthy air quality

Williamsport air quality information

PollutantTotal
Arsenic0.010%
Benzene0.130%
Carbon Tetrachloride0.090%
Lead0.080%
Mercury0.020%

Average monthly Williamsport temperature with heat index

Williamsport monthly precipitation with daily maximum

Williamsport monthly snow depth with daily maximum

Williamsport monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Bakersville, MD534118%
Boonsboro, MD3,4584118%
Cearfoss, MD1074118%
Downsville, MD3604118%
Fairplay, MD5554118%
Williamsport, MD2,0314118%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Monson Center, MA2,0313922%
East Atlantic Beach, NY2,031536%
Big Sandy, TX2,0313334%
Port Barre, LA2,0304412%
Wakarusa, IN2,030468%
Williamsport, MD2,0314118%
Source: The Williamsport, MD weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.
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