Irwin borough, PA has a humid continental climate with hot summers, cold winters, and abundant precipitation throughout the year. The average temperature in the summer months ranges from the low-to-mid 70s with occasional heat waves, while winter temperatures typically range from the mid-teens to low-20s. Precipitation totals for Irwin borough tend to be higher than other locations in Pennsylvania due to its position along the Allegheny Mountains. Snowfall averages around 25 inches per year. The spring and fall months are generally mild and comfortable, with temperatures ranging from the mid-40s to mid-60s.
Irwin, Pennsylvania gets 40 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Irwin averages 26 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 163 sunny days per year in Irwin. The US average is 205 sunny days.
Irwin gets some kind of precipitation, on average, 142 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
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