Brentwood, PA Climate

Brentwood, Pennsylvania has a typical mid-Atlantic climate with hot and humid summers and cold winters. Average summer temperatures range from the mid-80s to low 90s, while in winter temperatures typically range between the high teens and low 30s. Precipitation is spread evenly throughout the year, with slightly more rainfall in spring and early summer. The area is subject to occasional thunderstorms during summer months, as well as occasional snowfall during winter months.

Brentwood, Pennsylvania gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Brentwood averages 33 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 165 sunny days per year in Brentwood. The US average is 205 sunny days.

Brentwood 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 33 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Brentwood 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 Brentwood, while January and February are the least comfortable months.

Climate	Brentwood, Pennsylvania	United States
	38.6 in.	38.1 in.
	33.3 in.	27.8 in.
	144.0 days	106.2 days
	165 days	205 days
	83.1°	85.8°
	21.1°	21.7°
	7	7
	3.4	4.3
	1214 ft.	2443 ft.

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 Brentwood with an average high temperature of 83.1°, which ranks it as about average compared to other places in Pennsylvania. In Brentwood, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Brentwood are June, September and August.

In Brentwood, there are 8.3 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 Brentwood with an average of 21.1°. This is warmer than most places in Pennsylvania.

In Brentwood, there are 112.8 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in Pennsylvania.

In Brentwood, 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 Brentwood 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 Brentwood 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 38.6 inches in Brentwood means that it is one of the driest places in Pennsylvania.

January is the rainiest month in Brentwood with 14.8 days of rain, and August is the driest month with only 9.4 rainy days. There are 144.0 rainy days annually in Brentwood, 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 33.3 inches in Brentwood means that it is snowier than most places in Pennsylvania. January is the snowiest month in Brentwood with 9.8 inches of snow, and 6 months of the year have significant snowfall.