Arnold, PA Climate

Arnold, PA enjoys a humid continental climate, with moderate temperatures and abundant precipitation throughout the year. Summers are hot and humid, while winters are cold, snowy and icy. Arnold experiences all four seasons and has plenty of sunshine to enjoy throughout the year. The average annual temperature is around 60°F (15.5°C). Precipitation levels range from about 34 inches (86 centimetres) per year in the lowest-lying areas to around 45 inches (114 centimetres) in higher elevations.

Arnold, Pennsylvania gets 41 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Arnold averages 28 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 Arnold. The US average is 205 sunny days.

Arnold gets some kind of precipitation, on average, 143 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 19
Rain: averages 41 inches of rain a year
Snow: averages 28 inches of snow a year

Bestplaces Comfort Index

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

9 Summer - 4.9 Winter

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

Climate	Arnold, Pennsylvania	United States
	Unlock	38.1 in.
	27.9 in.	Unlock
	Unlock	106.2 days
	162 days	Unlock
	83.7°	85.8°
	Unlock	21.7°
	7	Unlock
	Unlock	4.3
	794 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 Arnold with an average high temperature of 83.7°, which ranks it as about average compared to other places in Pennsylvania. In Arnold, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Arnold are June, September and August.

In Arnold, there are 9.5 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 Arnold with an average of 19.3°. This is about average compared to other places in Pennsylvania.

In Arnold, there are 129.0 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Pennsylvania.

In Arnold, there are 4.0 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Pennsylvania.

The humidity is usually comfortable in Arnold but some summer days can be muggy. July is the most humid month, though it is still relatively mild compared to many other places. The most humid months are July, August and June.

July is the wettest month in Arnold with 4.2 inches of rain, and the driest month is February with 2.3 inches. The wettest season is Autumn with 30% of yearly precipitation and 20% occurs in Spring, which is the driest season. The annual rainfall of 40.7 inches in Arnold means that it is drier than most places in Pennsylvania.

December is the rainiest month in Arnold with 14.4 days of rain, and August is the driest month with only 9.3 rainy days. There are 142.9 rainy days annually in Arnold, which is rainier than most places in Pennsylvania. The rainiest season is Spring when it rains 29% of the time and the driest is Autumn with only a 22% chance of a rainy day.

An annual snowfall of 27.9 inches in Arnold means that it is less snowy than most places in Pennsylvania. January is the snowiest month in Arnold with 9.7 inches of snow, and 6 months of the year have significant snowfall.

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