Zip 17830 (Herndon, PA) Climate

The climate in 17830 Herndon, PA is classified as a humid continental climate. Summers are hot and humid, with temperatures averaging in the mid-80s, while winters are quite cold, with lows often dropping below freezing. Precipitation is plentiful throughout the year, with snowfall occurring most heavily during the winter months. The area experiences all four seasons to their fullest extent, making it a great place to visit or live.

Herndon (zip 17830), Pennsylvania gets 42 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Herndon (zip 17830) averages 31 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 196 sunny days per year in Herndon (zip 17830). The US average is 205 sunny days.

Herndon (zip 17830) gets some kind of precipitation, on average, 124 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 85 degrees
Winter Low: the January low is 19
Rain: averages 42 inches of rain a year
Snow: averages 31 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 17830 zip code is 7.0 (10=best), which means it is more comfortable than most places in Pennsylvania.

8.9 Summer - 5.1 Winter

June, September and August are the most pleasant months in the 17830 zip code, while January and February are the least comfortable months.

Climate	Herndon, Pennsylvania	United States
	Unlock	38.1 in.
	30.9 in.	Unlock
	Unlock	106.2 days
	196 days	Unlock
	84.5°	85.8°
	Unlock	21.7°
	7	Unlock
	Unlock	4.3
	784 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 17830 zip code with an average high temperature of 84.5°, which ranks it as warmer than most places in Pennsylvania. In the 17830 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 17830 zip code are June, September and August.

In the 17830 zip code, there are 11.9 days annually when the high temperature is over 90°, which is hotter than most places in Pennsylvania.

January has the coldest nighttime temperatures for the 17830 zip code with an average of 18.9°. This is about average compared to other places in Pennsylvania.

In the 17830 zip code, there are 127.4 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Pennsylvania.

In the 17830 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 17830 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 17830 zip code with 4.3 inches of rain, and the driest month is February with 2.3 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 41.8 inches in the 17830 zip code means that it is drier than most places in Pennsylvania.

May is the rainiest month in the 17830 zip code with 12.6 days of rain, and February is the driest month with only 8.3 rainy days. There are 123.6 rainy days annually in the 17830 zip code, which is less rainy than most places in Pennsylvania. The rainiest season is Summer when it rains 28% of the time and the driest is Spring with only a 22% chance of a rainy day.

An annual snowfall of 30.9 inches in the 17830 zip code means that it is about average compared to other places in Pennsylvania. January is the snowiest month in the 17830 zip code with 10.8 inches of snow, and 6 months of the year have significant snowfall.

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