Upper Marlboro, MD Climate


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United States / Maryland / Washington-Arlington-Alexandria Metro Area / Prince George's County / Upper Marlboro / Zip Codes
Upper Marlboro, MD has a humid subtropical climate, characterized by hot and humid summers with frequent thunderstorms and mild to cool winters. Average summer temperatures reach highs in the mid 80s (Fahrenheit) while winter temperatures typically stay around the upper 30s/low 40s. Precipitation is spread throughout the year, with an annual average of 44 inches falling mainly as rain but occasionally mixed with sleet or snow during winter months. Upper Marlboro's location near the Chesapeake Bay moderates temperatures year-round, making it a comfortable place to live.

Upper Marlboro, Maryland gets 44 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Upper Marlboro averages 15 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 206 sunny days per year in Upper Marlboro. The US average is 205 sunny days.

Upper Marlboro gets some kind of precipitation, on average, 106 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 24
Rain: averages 44 inches of rain a year
Snow: averages 15 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Upper Marlboro is 7.4 (10=best), which means it is one of the most pleasant places in Maryland.

8.1 Summer - 5.8 Winter
September, May and June are the most pleasant months in Upper Marlboro, while January and February are the least comfortable months.

  ClimateUpper Marlboro, MarylandUnited States
  43.8 in.38.1 in.
  14.7 in.27.8 in.
  105.6 days106.2 days
  206 days205 days
  87.4°85.8°
  24.0°21.7°
  7.47
  4.34.3
  26 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 Upper Marlboro with an average high temperature of 87.4°, which ranks it as about average compared to other places in Maryland. In Upper Marlboro, there are 3 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Upper Marlboro are September, May and June.
In Upper Marlboro, there are 25.3 days annually when the high temperature is over 90°, which is about average compared to other places in Maryland.
January has the coldest nighttime temperatures for Upper Marlboro with an average of 24.0°. This is colder than most places in Maryland.
In Upper Marlboro, there are 98.4 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Maryland.
In Upper Marlboro, there are 0.6 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Maryland.
The humidity is usually acceptable in Upper Marlboro but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. July, August and June are the three most uncomfortably humid months in Upper Marlboro.
May is the wettest month in Upper Marlboro with 4.3 inches of rain, and the driest month is February with 2.9 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 43.8 inches in Upper Marlboro means that it is about average compared to other places in Maryland.
May is the rainiest month in Upper Marlboro with 10.1 days of rain, and October is the driest month with only 7.6 rainy days. There are 105.6 rainy days annually in Upper Marlboro, which is one of the least rainy 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 14.7 inches in Upper Marlboro means that it is about average compared to other places in Maryland. January is the snowiest month in Upper Marlboro with 6.6 inches of snow, and 5 months of the year have significant snowfall.
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Lucy · Bowie, MD
Upper Marlboro: Beautiful Historic Horse Country
Over 1 years ago

Upper Marlboro is in many ways a difficult place to find. The actual town of Upper Marlboro is very small---located along Route 4 and Old Marlboro Pike---the town was  More

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Bea · Annapolis, MD
Quality of Life
Over 18 years ago

Live outside of Washington DC, in an area referred to as "rural tier". A mile and a half to chaos! Traffic problems galore, high property cost, school problems.   More

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