Allegheny County, Pennsylvania 

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United States / Pennsylvania / / Allegheny County / Cities / Zip Codes

Weather in Allegheny County, Pennsylvania

The most pleasant months of the year for Allegheny County are June, September and August. In Allegheny County, there are 5 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for Allegheny County with an average high temperature of 83.3°, which ranks it as about average compared to other places in Pennsylvania. January is the snowiest month in Allegheny County with 8.9 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 - Allegheny, PA

6 AM PST

Patchy Fog then Sunny

72°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TodayPatchy Fog then Sunny88° / 64°SE 6 to 10 mph
WednesdayMostly Sunny83° / 67°SE 6 to 10 mph
ThursdayRain Showers Likely84° / 68°SE 10 mph
FridayChance Showers And Thunderstorms then Showers And Thunderstorms81° / 60°SW 7 mph
SaturdayMostly Sunny72° / 49°NW 6 mph
SundaySunny69° / 48°N 6 mph
MondayMostly Sunny71° / 54°N 3 mph

Weather Highlights

Summer High: the July high is around 83 degrees
Winter Low: the January low is 21
Rain: averages 39 inches of rain a year
Snow: averages 27 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Allegheny County area is 7 (10=best), which means it is more comfortable than most places in Pennsylvania.

7 / 10

A higher score indicates a more comfortable year-round climate. The US average for the comfort index is 7. 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
January37° 21°
February40° 22°
March50° 29°
April62° 39°
May71° 49°
June80° 58°
July83° 63°
August82° 61°
September75° 54°
October64° 43°
November52° 34°
December40° 25°
Hot, Freezing, Rainy, Snowy Days: Allegheny
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January026157
February024125
March019133
April07131
May01130
June10120
July40100
August3090
September10100
October03100
November013121
December024145

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.


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MAPS OF ALLEGHENY COUNTY, PENNSYLVANIA
ZIP CODES IN ALLEGHENY COUNTY, PENNSYLVANIA
15237, 15108, 15235, 15221, 15102, 15206, 15236, 15227, 15213, 15044, ... 100 more

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