Glenn Dale, MD Climate


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United States / Maryland / Washington-Arlington-Alexandria Metro Area / Prince George's County / Glenn Dale / Zip Codes
Glenn Dale, MD has a humid subtropical climate with mild winters and hot, humid summers. The average annual temperature is around 60°F (15.6°C). Winters have an average low temperature of 36°F (2.2°C), while summer months bring an average high of 89°F (31.7°C). Rainfall amounts are average throughout the year with precipitation peaking in June at around 5 inches (127mm). Snowfall is relatively rare in this area, only about 8 inches (203mm) per year on average.

Glenn Dale, Maryland gets 43 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Glenn Dale averages 15 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 Glenn Dale. The US average is 205 sunny days.

Glenn Dale gets some kind of precipitation, on average, 109 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 88 degrees
Winter Low: the January low is 24
Rain: averages 43 inches of rain a year
Snow: averages 15 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Glenn Dale is 7.3 (10=best), which means it is more comfortable than most places in Maryland.

8 Summer - 5.8 Winter
September, May and June are the most pleasant months in Glenn Dale, while January and February are the least comfortable months.

  ClimateGlenn Dale, MarylandUnited States
  43.4 in.38.1 in.
  14.8 in.27.8 in.
  108.6 days106.2 days
  205 days205 days
  87.8°85.8°
  23.8°21.7°
  7.37
  4.34.3
  121 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 Glenn Dale with an average high temperature of 87.8°, which ranks it as warmer than most places in Maryland. In Glenn Dale, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Glenn Dale are September, May and June.
In Glenn Dale, there are 28.8 days annually when the high temperature is over 90°, which is hotter than most places in Maryland.
January has the coldest nighttime temperatures for Glenn Dale with an average of 23.8°. This is colder than most places in Maryland.
In Glenn Dale, there are 98.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Maryland.
In Glenn Dale, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Maryland.
The humidity can be uncomfortably heavy or close in Glenn Dale during the summer months. July is the most humid month, though humidity is low for most of the year. July, August and June are the three most humid months in Glenn Dale.
May is the wettest month in Glenn Dale with 4.5 inches of rain, and the driest month is February with 2.8 inches. The wettest season is Autumn with 27% of yearly precipitation and 21% occurs in Spring, which is the driest season. The annual rainfall of 43.4 inches in Glenn Dale means that it is about average compared to other places in Maryland.
May is the rainiest month in Glenn Dale with 10.5 days of rain, and October is the driest month with only 8.0 rainy days. There are 108.6 rainy days annually in Glenn Dale, which is less rainy than most places in Maryland. The rainiest season is Summer when it rains 27% of the time and the driest is Winter with only a 23% chance of a rainy day.
An annual snowfall of 14.8 inches in Glenn Dale means that it is about average compared to other places in Maryland. January is the snowiest month in Glenn Dale with 6.3 inches of snow, and 5 months of the year have significant snowfall.
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