Zip 15642 (Irwin, PA) Weather


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The most pleasant months of the year for the 15642 zip code are June, September and August. In the 15642 zip code, there are 5 comfortable months with high temperatures in the range of 70-85°. July is the hottest month for the 15642 zip code with an average high temperature of 83.8°, which ranks it as about average compared to other places in Pennsylvania. January is the snowiest month in the 15642 zip code with 9.3 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 - Irwin, PA

7 PM PST

Rain Showers then Mostly Cloudy

70°F

7 DAY FORECASTDESCRIPTIONHIGH/LOWWIND
TonightRain Showers then Mostly Cloudy56° / 68°W 10 to 15 mph
Thursday NightPartly Cloudy then Slight Chance Rain Showers52° / 68°SE 5 to 9 mph
Friday NightRain Showers Likely then Partly Cloudy44° / 59°W 9 mph
Saturday NightPartly Cloudy36° / 55°W 6 to 18 mph
Sunday NightPartly Cloudy34° / 62°NW 5 to 10 mph
Monday NightMostly Clear39° / 66°S 5 to 8 mph
Tuesday NightShowers And Thunderstorms Likely47° / 61°SW 13 mph

Weather Highlights

Summer High: the July high is around 84 degrees
Winter Low: the January low is 20
Rain: averages 40 inches of rain a year
Snow: averages 26 inches of snow a year


BESTPLACES COMFORT INDEX

The annual BestPlaces Comfort Index for the Irwin (zip 15642) area is 9 (10=best), which means it is more comfortable than most places in Pennsylvania.

9 / 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°
February41° 22°
March51° 28°
April63° 38°
May72° 47°
June80° 56°
July84° 61°
August83° 60°
September76° 52°
October64° 41°
November53° 33°
December41° 24°
Hot, Freezing, Rainy, Snowy Days: Irwin
Hot
Days
Freezing
Days
Rainy
Days
Snowy
Days
January026146
February024125
March020122
April08130
May01130
June10120
July40110
August3090
September10100
October05100
November015121
December025134

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 Irwin
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In 1999 my family moved to North Huntingdon, we had 3 high school students at the time. We chose this area because the school system had a high standard for education.  More

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