TODAY JUN25
TEMPERATURE75
HUMIDITY58
PRESSURE30
WIND COND.
  • 8060Tue
  • 8368Wed40%
  • 8669Thu40%40%
  • 9171Fri
  • 9372Sat
daynightWeather update from Mcguire Air Force Base at

Allentown 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
January-1°F73°F34°F3.1"
February9°F71°F34°F2.0"
March9°F81°F41°F2.3"
April27°F93°F53°F4.2"
May36°F90°F60°F5.2"
June39°F97°F71°F5.1"
July39°F99°F75°F4.7"
August43°F99°F74°F3.3"
September41°F95°F67°F3.5"
October27°F88°F56°F5.3"
November18°F75°F47°F3.4"
December10°F70°F37°F4.7"

Did you know?

  • The highest monthly average temperature in Allentown for July is 75 degrees.
  • The lowest monthly average temperature in Allentown for February is 34 degrees.
  • The most monthly precipitation in Allentown occurs in October with 5.3 inches.
  • The air quality index in Allentown is 19% better than the national average.
  • The pollution index in Allentown is 25% better than the national average.

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Compare Allentown, NJ 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.
IndexAllentownNew JerseyNational
Air quality index404550
Pollution index3,756,2707,146,1325,066,862

Allentown air quality information

MeasurementTotal
Days measured365
Days with good air quality257
Days with moderate air quality106
Days w/ poor A.Q. for sensitive groups2
Days with unhealthy air quality

Allentown air quality information

PollutantTotal
Arsenic0.020%
Benzene0.040%
Carbon Tetrachloride0.010%
Lead0.100%
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.
Bordentown, NJ3,8744020%
Concordia, NJ3,1564020%
Fieldsboro, NJ6294020%
Hamilton Square, NJ13,2654020%
Hopewell, NJ1,9044020%
Allentown, NJ1,8904020%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Oak Hill, OH1,8901962%
Warsaw, KY1,890548%
Elmore, AL1,8903726%
Landover Hills, MD1,890492%
Lake Camelot, IL1,890484%
Allentown, NJ1,8904020%
Source: The Allentown, NJ 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.