TODAY SEP20
TEMPERATURE65
HUMIDITY78
PRESSURE30.09
WIND COND.
  • 7562Thu
  • 7765Fri20%30%
  • 7455Sat30%
  • 7057Sun
  • 7157Mon40%
daynightWeather update from Allentown, Lehigh Valley International Airport at
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Allentown 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
January20°F40°F30°F3.5"
February20°F42°F31°F3.1"
March28°F53°F40°F3.4"
April38°F67°F52°F3.9"
May48°F76°F62°F3.7"
June58°F84°F71°F5.5"
July63°F88°F75°F6.4"
August61°F85°F73°F5.0"
September54°F80°F66°F4.5"
October43°F68°F55°F5.4"
November33°F56°F44°F2.8"
December26°F45°F35°F4.9"

Did you know?

  • The highest monthly average temperature in Allentown for July is 75 degrees.
  • The lowest monthly average temperature in Allentown for January is 30 degrees.
  • The most monthly precipitation in Allentown occurs in July with 6.4 inches.
  • The air quality index in Allentown is 5% better than the national average.
  • The pollution index in Allentown is 37% better than the national average.

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Compare Allentown, PA Weather To Other Cities

Allentown 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.
IndexAllentownPennsylvaniaNational
Air quality index474550
Pollution index3,167,1104,327,9925,066,862

Allentown air quality information

MeasurementTotal
Days measured365
Days with good air quality203
Days with moderate air quality151
Days w/ poor A.Q. for sensitive groups11
Days with unhealthy air quality

Allentown air quality information

PollutantTotal
Arsenic0.002%
Benzene0.040%
Carbon Tetrachloride0.010%
Lead0.030%
Mercury0.001%

Average monthly Allentown temperature with heat index

Allentown monthly precipitation with daily maximum

Allentown monthly snow depth with daily maximum

Allentown monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Belfast, PA1,0103922%
Lyons, PA5674510%
Bowers, PA1504510%
Dryville, PA4614510%
New Jerusalem, PA5564510%
Allentown, PA119,624476%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Vallejo, CA119,6444314%
Evansville, IN120,156484%
Norman, OK118,974476%
Berkeley, CA118,5854314%
Athens, GA120,8133922%
Allentown, PA119,624476%
Source: The Allentown, PA 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.