Butler County, PA Climate

The climate in Butler, PA County is typically mild and temperate. Summers are warm with temperatures usually reaching the mid-80s, while winters are cold with temperatures ranging from the mid-20s to lower 30s. Precipitation is fairly evenly distributed throughout the year, but snowfall does occur during the winter months. Winters can be quite snowy and blustery with several inches of snow accumulation possible. Spring and Fall seasons are pleasant with temperatures usually hovering in the low 60s and high 50s respectively.

Butler County, Pennsylvania gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Butler County averages 37 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 Butler County. The US average is 205 sunny days.

Butler County gets some kind of precipitation, on average, 157 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 82 degrees
Winter Low: the January low is 18
Rain: averages 42 inches of rain a year
Snow: averages 37 inches of snow a year

Bestplaces Comfort Index

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

9.1 Summer - 4.5 Winter

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

Climate	Butler, Pennsylvania	United States
	41.9 in.	38.1 in.
	36.8 in.	27.8 in.
	156.9 days	106.2 days
	162 days	205 days
	82.3°	85.8°
	18.4°	21.7°
	6.8	7
	3.5	4.3
	1241 ft.	2443 ft.

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 Butler County with an average high temperature of 82.3°, which ranks it as cooler than most places in Pennsylvania. In Butler County, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Butler County are June, August and September.

In Butler County, there are 6.6 days annually when the high temperature is over 90°, which is cooler than most places in Pennsylvania.

January has the coldest nighttime temperatures for Butler County with an average of 18.4°. This is about average compared to other places in Pennsylvania.

In Butler County, there are 133.1 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Pennsylvania.

In Butler County, there are 5.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Pennsylvania.

Humidity in Butler 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.

June is the wettest month in Butler County with 4.4 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 41.9 inches in Butler County means that it is drier than most places in Pennsylvania.

January is the rainiest month in Butler County with 16.2 days of rain, and August is the driest month with only 10.3 rainy days. There are 156.9 rainy days annually in Butler 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 22% chance of a rainy day.

An annual snowfall of 36.8 inches in Butler County means that it is snowier than most places in Pennsylvania. January is the snowiest month in Butler County with 11.5 inches of snow, and 6 months of the year have significant snowfall.

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