TODAY AUG21
TEMPERATURE
HUMIDITY
PRESSURE
WIND COND.
  • 7653Wed
  • 7856Thu
  • 7764Fri50%
  • 8569Sat40%
  • 8869Sun
daynightWeather update from Danville, Vermilion County Airport at

Williamsport Average Weather

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
January20°F36°F27°F5.6"
February20°F37°F28°F3.2"
March33°F53°F42°F4.2"
April44°F66°F54°F7.2"
May54°F75°F64°F7.5"
June63°F84°F73°F7.8"
July64°F85°F74°F7.8"
August62°F84°F73°F10.6"
September56°F79°F66°F7.9"
October45°F67°F55°F7.0"
November34°F53°F43°F6.5"
December26°F40°F32°F5.0"

Did you know?

  • The highest monthly average temperature in Williamsport for July is 74 degrees.
  • The lowest monthly average temperature in Williamsport for January is 27 degrees.
  • The most monthly precipitation in Williamsport occurs in August with 10.6 inches.
  • The air quality index in Williamsport is 4% worse than the national average.
  • The pollution index in Williamsport is 93% worse than the national average.

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Compare Williamsport, IN 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.
IndexWilliamsportIndianaNational
Air quality index525650
Pollution index9,793,5403,773,6185,066,862

Williamsport air quality information

MeasurementTotal
Days measured365
Days with good air quality170
Days with moderate air quality195
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Williamsport air quality information

PollutantTotal
Arsenic0.010%
Benzene0.070%
Carbon Tetrachloride0.010%
Lead0.001%
Mercury0.040%

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.
Covington, IN2,519524%
Newtown, IN239524%
Veedersburg, IN2,244524%
Wingate, IN240524%
Hillsboro, IN641524%
Williamsport, IN1,743524%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Clearwater, MN1,7433334%
Forest Lake, IL1,7436020%
Glen Lyon, PA1,7434020%
Sparta, GA1,7434118%
Merritt Park, NY1,7423628%
Williamsport, IN1,743524%
Source: The Williamsport, IN 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.