Greenbelt (MD) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Greenbelt.
Climate overview of Greenbelt
Temperatures in Greenbelt, Maryland, United States of America, vary greatly throughout the year. July is the hottest month at 31°C (88°F), while January is the coldest at 6°C (43°F).
Rain/snowfall is high, totalling around 1147 mm (45 in) per year. June is the wettest month and February the driest. Sunshine peaks in June, when the city sees around 9.4 hours of sunshine per day.
Greenbelt Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Greenbelt — and find the best time to visit.
Monthly Temperature in Greenbelt
The climate in Greenbelt is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a very warm 31°C (88°F) in July, the warmest time of the year, to a chilly 6°C (43°F) during cooler months like January.
At night, you can expect temperatures ranging from 20°C (68°F) in July to around -4°C (25°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Greenbelt
Greenbelt has a notably wet climate with abundant precipitation, recording 1147 mm (45 in) of rain/snowfall per year. Significant seasonal changes in precipitation occur throughout the year. In the wettest month, June it receives high rainfall, averaging 149 mm (5.9 in) of precipitation, recorded across 13 rainy days. In contrast, the driest month February brings less rainfall, with 65 mm (2.6 in) over 10 rainy days. For more details, please visit our Greenbelt Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Greenbelt
Seasonal changes in sunshine hours are quite dramatic in Greenbelt. While June receives considerable daily sunshine with up to 9.4 hours, December marks the darkest time of the year, where sunshine is scarce with only 4.3 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Greenbelt by Month
The relative humidity is high throughout the year in Greenbelt.
The city experiences its highest humidity in August, reaching 69%. In March, the humidity drops to its lowest level at 58%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Greenbelt
The average wind speed over the year ranges from 4 m/s (8 knots) to 5 m/s (10 knots). It is lower in May, June, July, August, September, October, November and December and higher in January, February, March and April. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Greenbelt
Frequently asked questions about the climate in Greenbelt
What is the best time to visit Greenbelt?
April, May, June, September and October typically offer the most optimal weather in Greenbelt. In contrast, January, February and December tend to have less optimal conditions.
What temperatures can I expect in Greenbelt?
Daytime highs range from 6°C (43°F) in January to 31°C (88°F) in July. Nighttime lows range from -4°C (25°F) to 20°C (68°F). Temperatures vary considerably through the year.
How much rain does Greenbelt get?
Annual rainfall is around 1147 mm (45 in). June is the wettest month with 149 mm (5.9 in), while February is the driest with 65 mm (2.6 in).
How sunny is Greenbelt?
Greenbelt receives around 2,520 hours of sunshine per year. June is the sunniest month with 282 hours, while December is the cloudiest with just 130 hours. Overall, Greenbelt enjoys abundant sunshine.
Greenbelt 3-Day Forecast
Greenbelt (MD) 3-Day Forecast
Greenbelt on the map
Greenbelt is highlighted — select any city to see its climate.
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