Sewickley township (Westmoreland County), PA Climate

Sewickley, PA is known for its temperate climate with four distinct seasons. It experiences warm summers and cold winters, with temperatures generally ranging from the low 40s in winter to the mid-80s in summer. The area receives an average of 37 inches of rain annually, and snowfall totals typically range between 15-25 inches during the winter months. Sewickley tends to be slightly cooler than areas near Pittsburgh due to its location on the northern shore of the Ohio River.

Sewickley township (Westmoreland County), Pennsylvania gets 40 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Sewickley township (Westmoreland County) averages 24 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 Sewickley township (Westmoreland County). The US average is 205 sunny days.

Sewickley township (Westmoreland County) 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 21
Rain: averages 40 inches of rain a year
Snow: averages 24 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Sewickley is 7.1 (10=best), which means it is more comfortable than most places in Pennsylvania.

9 Summer - 5 Winter

August, June and September are the most pleasant months in Sewickley, while January and February are the least comfortable months.

Climate	Sewickley township (Westmoreland County), Pennsylvania	United States
	Unlock	38.1 in.
	24.0 in.	Unlock
	Unlock	106.2 days
	162 days	Unlock
	83.5°	85.8°
	Unlock	21.7°
	7.1	Unlock
	Unlock	4.3
	919 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 Sewickley with an average high temperature of 83.5°, which ranks it as about average compared to other places in Pennsylvania. In Sewickley, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Sewickley are June, September and August.

In Sewickley, there are 8.6 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 Sewickley with an average of 20.6°. This is warmer than most places in Pennsylvania.

In Sewickley, there are 121.2 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Pennsylvania.

In Sewickley, there are 2.1 days annually when the nighttime low temperature falls below zero°, which is about average compared to other places in Pennsylvania.

The humidity is usually comfortable in Sewickley but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. The most humid months are July, August and June.

May is the wettest month in Sewickley with 4.2 inches of rain, and the driest month is February with 2.5 inches. The wettest season is Autumn with 29% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 40.1 inches in Sewickley means that it is drier than most places in Pennsylvania.

April is the rainiest month in Sewickley with 13.4 days of rain, and August is the driest month with only 9.5 rainy days. There are 142.3 rainy days annually in Sewickley, which is rainier than most places in Pennsylvania. The rainiest season is Summer when it rains 27% of the time and the driest is Autumn with only a 23% chance of a rainy day.

An annual snowfall of 24.0 inches in Sewickley means that it is less snowy than most places in Pennsylvania. January is the snowiest month in Sewickley with 8.2 inches of snow, and 5 months of the year have significant snowfall.

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