Zip 15234 (Castle Shannon, PA) Climate

The climate in 15234 Castle Shannon, PA is mostly temperate throughout the year. Winters are cold and snowy, usually starting in late November and lasting until early March. Temperatures during the winter months range from the mid-20s to as low as 0 degrees Fahrenheit at night. Summers tend to be warm and humid, with temperatures ranging from the mid-70s to low 90s. The area receives an average of 23 inches of rain each year, with most of that falling in the summer months. Snowfall tends to be around 28 inches per year during the winter months.

Castle Shannon (zip 15234), Pennsylvania gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Castle Shannon (zip 15234) averages 30 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 Castle Shannon (zip 15234). The US average is 205 sunny days.

Castle Shannon (zip 15234) gets some kind of precipitation, on average, 144 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 21
Rain: averages 39 inches of rain a year
Snow: averages 30 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 15234 zip code is 7.0 (10=best), which means it is more comfortable than most places in Pennsylvania.

9.1 Summer - 4.8 Winter

June, September and August are the most pleasant months in the 15234 zip code, while January and February are the least comfortable months.

Climate	Castle Shannon, Pennsylvania	United States
	Unlock	38.1 in.
	30.2 in.	Unlock
	Unlock	106.2 days
	162 days	Unlock
	83.1°	85.8°
	Unlock	21.7°
	7	Unlock
	Unlock	4.3
	1088 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 15234 zip code with an average high temperature of 83.1°, which ranks it as about average compared to other places in Pennsylvania. In the 15234 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 15234 zip code are June, September and August.

In the 15234 zip code, there are 8.4 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 15234 zip code with an average of 21.1°. This is warmer than most places in Pennsylvania.

In the 15234 zip code, there are 113.1 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Pennsylvania.

In the 15234 zip code, there are 1.5 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 15234 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 15234 zip code with 4.1 inches of rain, and the driest month is February with 2.5 inches. The wettest season is Autumn with 29% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 38.5 inches in the 15234 zip code means that it is one of the driest places in Pennsylvania.

January is the rainiest month in the 15234 zip code with 14.8 days of rain, and August is the driest month with only 9.4 rainy days. There are 143.9 rainy days annually in the 15234 zip code, 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 30.2 inches in the 15234 zip code means that it is about average compared to other places in Pennsylvania. January is the snowiest month in the 15234 zip code with 9.0 inches of snow, and 6 months of the year have significant snowfall.

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