Zip 17970 (St. Clair, PA) Climate

17970 St. Clair, PA has a humid continental climate, characterized by hot summers and cold winters. Summers in this area are typically warm and humid with average temperatures ranging from the low 60s to mid-80s Fahrenheit. Winters are cold, with temperatures ranging from the teens to low 30s Fahrenheit. Precipitation is consistent throughout the year, averaging around 35 inches per year. Snowfall can be expected during winter months with approximately 40 inches of snow annually. The town of St Clair experiences four distinct seasons each year making it an ideal spot for outdoor recreation in both summer and winter months.

St. Clair (zip 17970), Pennsylvania gets 50 inches of rain, on average, per year. The US average is 38 inches of rain per year.

St. Clair (zip 17970) averages 37 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 192 sunny days per year in St. Clair (zip 17970). The US average is 205 sunny days.

St. Clair (zip 17970) gets some kind of precipitation, on average, 125 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 50 inches of rain a year
Snow: averages 37 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 17970 zip code is 7.0 (10=best), which means it is more comfortable than most places in Pennsylvania.

8.9 Summer - 5 Winter

June, August and September are the most pleasant months in the 17970 zip code, while January and February are the least comfortable months.

Climate	St. Clair, Pennsylvania	United States
	Unlock	38.1 in.
	37.3 in.	Unlock
	Unlock	106.2 days
	192 days	Unlock
	84.1°	85.8°
	Unlock	21.7°
	7	Unlock
	Unlock	4.3
	797 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 the 17970 zip code with an average high temperature of 84.1°, which ranks it as warmer than most places in Pennsylvania. In the 17970 zip code, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 17970 zip code are June, September and August.

In the 17970 zip code, there are 10.4 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 the 17970 zip code with an average of 19.6°. This is about average compared to other places in Pennsylvania.

In the 17970 zip code, there are 120.3 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Pennsylvania.

In the 17970 zip code, there are 1.7 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in Pennsylvania.

The humidity is usually comfortable in the 17970 zip code 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.

June is the wettest month in the 17970 zip code with 5.3 inches of rain, and the driest month is February with 3.0 inches. The wettest season is Autumn with 27% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 50.4 inches in the 17970 zip code means that it is one of the wettest places in Pennsylvania.

May is the rainiest month in the 17970 zip code with 12.1 days of rain, and February is the driest month with only 9.3 rainy days. There are 125.0 rainy days annually in the 17970 zip code, which is less rainy than most places in Pennsylvania. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 23% chance of a rainy day.

An annual snowfall of 37.3 inches in the 17970 zip code means that it is snowier than most places in Pennsylvania. January is the snowiest month in the 17970 zip code with 11.9 inches of snow, and 6 months of the year have significant snowfall.

Reviews for St. Clair

See all ()

Write a Review

Start Your Review of St. Clair

Jobs

The premier source for comprehensive city data for over 30 years.