Allentown, PA Weather


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The most pleasant months of the year for Allentown are September, June and May. In Allentown, there are 4 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Allentown with an average high temperature of 85.9°, which ranks it as one of the hottest places in Pennsylvania. February is the snowiest month in Allentown with 9.8 inches of snow, and 6 months of the year have significant snowfall. July is the most humid month, though humidity is low for most of the year.

Today's Weather - Allentown, PA

3 PM PST

Slight Chance Rain Showers

56°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
This AfternoonSlight Chance Rain Showers58° / 49°S 10 mph
SaturdayChance Rain Showers then Mostly Sunny64° / 38°W 5 to 15 mph
SundayPartly Sunny58° / 38°W 5 to 15 mph
MondaySunny61° / 37°NW 5 to 10 mph
TuesdayMostly Sunny65° / 47°SE 5 to 15 mph
WednesdayRain Showers Likely64° / 36°SW 15 to 20 mph
ThursdaySunny58° / 36°NW 15 mph

Weather Highlights

Summer High: the July high is around 86 degrees
Winter Low: the January low is 20
Rain: averages 47 inches of rain a year
Snow: averages 29 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Allentown area is 8.6 (10=best), which means it is more comfortable than most places in Pennsylvania.

8.6 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7.8. Our index is based on the total number of days annually within the comfort range of 70-80 degrees, and we also applied a penalty for days of excessive humidity.


Average Monthly High and Low (°F)
HighLow
January38° 20°
February42° 22°
March51° 29°
April63° 39°
May73° 48°
June82° 58°
July86° 63°
August84° 61°
September77° 53°
October65° 41°
November54° 33°
December42° 24°
Hot, Freezing, Rainy, Snowy Days: Allentown
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January027115
February02494
March020102
April06120
May11120
June50110
July90110
August60100
September1090
October0590
November014100
December025103

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

Reviews for Allentown
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Winter in Allentown is alright, mild temperatures, there isn't much snow but there are some nearby ski resorts with artificial snow. In the summer there are some fun  More

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do you like cold and snow? Allentown may not be the coldest place in the country but it gets very cold and the winter feels endless...arctic blast after another and  More

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Over 9 years ago

This is a beautiful place, kept clean by weekly street sweeping. A multitude of parks exist including the exceptional Rose Garden and sports fields, and people use them  More

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