Armstrong County, PA Climate

Armstrong County, Pennsylvania has a humid continental climate, with moderate to cool temperatures year-round. Summers tend to be warm and humid with daily highs usually in the low 70s and occasional heat waves. Winters are cold and snowy, with temperatures dipping below freezing for stretches of several days or weeks at a time. There can also be significant snowfall in winter, with average totals of about 20 inches per season. Spring and fall are mild but bring transitional weather that can include bouts of rain, thunderstorms, or even snow. Armstrong County is an ideal location for outdoor activities throughout the year due to its temperate climate.

Armstrong County, Pennsylvania gets 43 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Armstrong County averages 36 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 162 sunny days per year in Armstrong County. The US average is 205 sunny days.

Armstrong County gets some kind of precipitation, on average, 145 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 83 degrees
Winter Low: the January low is 18
Rain: averages 43 inches of rain a year
Snow: averages 36 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Armstrong County is 6.8 (10=best), which means it is less comfortable than most places in Pennsylvania.

9.1 Summer - 4.6 Winter

August, July and June are the most pleasant months in Armstrong County, while January and February are the least comfortable months.

Climate	Armstrong, Pennsylvania	United States
	Unlock	38.1 in.
	35.7 in.	Unlock
	Unlock	106.2 days
	162 days	Unlock
	82.6°	85.8°
	Unlock	21.7°
	6.8	Unlock
	Unlock	4.3
	1209 ft.	Unlock

Climate

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.

July is the hottest month for Armstrong County with an average high temperature of 82.6°, which ranks it as cooler than most places in Pennsylvania. In Armstrong County, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Armstrong County are June, September and August.

In Armstrong County, there are 7.4 days annually when the high temperature is over 90°, which is about average compared to other places in Pennsylvania.

January has the coldest nighttime temperatures for Armstrong County with an average of 17.7°. This is colder than most places in Pennsylvania.

In Armstrong County, there are 141.0 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Pennsylvania.

In Armstrong County, there are 5.4 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Pennsylvania.

Humidity in Armstrong County is generally low and comfortable. But there some days when the humidity becomes unpleasant, especially in July and August. The most humid months (but still comfortable) are July, August and June.

July is the wettest month in Armstrong County with 4.5 inches of rain, and the driest month is February with 2.4 inches. The wettest season is Autumn with 30% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 42.6 inches in Armstrong County means that it is about average compared to other places in Pennsylvania.

January is the rainiest month in Armstrong County with 14.6 days of rain, and August is the driest month with only 9.9 rainy days. There are 145.3 rainy days annually in Armstrong County, which is rainier than most places in Pennsylvania. The rainiest season is Spring when it rains 28% of the time and the driest is Autumn with only a 23% chance of a rainy day.

An annual snowfall of 35.7 inches in Armstrong County means that it is snowier than most places in Pennsylvania. January is the snowiest month in Armstrong County with 11.9 inches of snow, and 6 months of the year have significant snowfall.

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