Zip 19401 (Norristown, PA) Climate

In 1940, Norristown, Pennsylvania was known for its humid summers and cold winters. Temperatures during the summer months usually ranged from 70-85 degrees Fahrenheit, while temperatures in the winter months typically dipped to 20-30 degrees Fahrenheit. Rainfall was abundant throughout the year, with an average of 4 inches of rain per month. The area experienced moderate snowfall in the winter months, with an annual average of about 12 inches. Overall, Norristown had a temperate climate which provided many pleasant days for outdoor activities.

Norristown (zip 19401), Pennsylvania gets 47 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Norristown (zip 19401) averages 17 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 205 sunny days per year in Norristown (zip 19401). The US average is 205 sunny days.

Norristown (zip 19401) gets some kind of precipitation, on average, 114 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 87 degrees
Winter Low: the January low is 21
Rain: averages 47 inches of rain a year
Snow: averages 17 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 19401 zip code is 7.2 (10=best), which means it is one of the most pleasant places in Pennsylvania.

8.5 Summer - 5.5 Winter

September, June and May are the most pleasant months in the 19401 zip code, while January and February are the least comfortable months.

Climate	Norristown, Pennsylvania	United States
	Unlock	38.1 in.
	16.7 in.	Unlock
	Unlock	106.2 days
	205 days	Unlock
	87.2°	85.8°
	Unlock	21.7°
	7.2	Unlock
	Unlock	4.3
	135 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 19401 zip code with an average high temperature of 87.2°, which ranks it as one of the hottest places in Pennsylvania. In the 19401 zip code, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 19401 zip code are September, May and June.

In the 19401 zip code, there are 25.2 days annually when the high temperature is over 90°, which is one of the hottest places in Pennsylvania.

January has the coldest nighttime temperatures for the 19401 zip code with an average of 21.2°. This is warmer than most places in Pennsylvania.

In the 19401 zip code, there are 115.6 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Pennsylvania.

In the 19401 zip code, there are 1.2 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 19401 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.

September is the wettest month in the 19401 zip code with 4.6 inches of rain, and the driest month is February with 2.9 inches. The wettest season is Autumn with 26% of yearly precipitation and 22% occurs in Spring, which is the driest season. The annual rainfall of 46.9 inches in the 19401 zip code means that it is wetter than most places in Pennsylvania.

April is the rainiest month in the 19401 zip code with 11.5 days of rain, and September is the driest month with only 8.0 rainy days. There are 113.6 rainy days annually in the 19401 zip code, which is one of the least rainy places in Pennsylvania. The rainiest season is Summer when it rains 29% of the time and the driest is Winter with only a 22% chance of a rainy day.

An annual snowfall of 16.7 inches in the 19401 zip code means that it is one of the least snowy places in Pennsylvania. February is the snowiest month in the 19401 zip code with 7.4 inches of snow, and 4 months of the year have significant snowfall.

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