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Allentown
Weather averages
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Climate in Allentown (Pennsylvania), United States of America

The graphs below show the monthly weather averages over the year.

Average day and night temperature

The mean minimum and maximum temperatures over the year.

Average monthly minimum and maximum temperature in Allentown, the United States of America

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Daily percent of sunshine

The mean percent of hours of sunhours during the day over the year

Average monthly percentage of sunshine in Allentown, the United States of America

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Monthly precipitation

The mean monthly precipitation over the year, including rain, snow, hail etc.

Average monthly rainfall, snow, precipitation in Allentown, the United States of America

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Monthly rainy days

The average number of days each month with rain, snow, hail etc.

Average monthly rainy days in Allentown, the United States of America

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Average humidity

The mean monthly relative humidity over the year

Average monthly relative humidity in Allentown, the United States of America

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Weather Forecasts for Allentown (PA)

Tue   Apr 16
23°C | 12°C
NW 18 km/h
clear and no rain

clear and no rain

hourly forecast
Wed   Apr 17
16°C | 8°C
E 11 km/h
3.6 mm
overcast and rain

overcast and rain

hourly forecast
Thu   Apr 18
13°C | 7°C
NE 18 km/h
5.2 mm
overcast and rain

overcast and rain

hourly forecast
5-Day Forecast 10-Day Forecast

The best time of year to visit Allentown in the United States of America

During the months of May and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:

  • When is summer in Allentown?
    The hottest season / summer takes place in June, July, August and September.
  • Which is the warmest month in Allentown?
    July has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Allentown?
    The coldest month is January with an average maximum temperature of 3°C.
  • Which is the wettest month in Allentown?
    June tops the wettest month list with 145 mm of rainfall.
  • Which is the driest month in Allentown?
    November is the driest month with 72 mm of precipitation.

    • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.

     

     

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