Annapolis Junction (MD) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Annapolis Junction.
Climate overview of Annapolis Junction
Annapolis Junction, Maryland, United States of America, experiences significant temperature variation throughout the year. Summers bring daytime highs of 31°C (88°F) in July, while winters cool to 6°C (43°F) in January.
Rain/snowfall is high, totalling around 1207 mm (48 in) per year. October is the wettest month and November the driest. The sunniest month is June, with 9.4 hours of sunshine per day on average.
Annapolis Junction Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Annapolis Junction — and find the best time to visit.
Monthly Temperature in Annapolis Junction
Depending on the time of the year, temperatures range from very warm to chilly in Annapolis Junction. 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 -5°C (23°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Annapolis Junction
Annapolis Junction has a relatively rain/snowy climate with high precipitation levels, averaging 1207 mm (48 in) of rain/snowfall annually. While rainfall varies throughout the year, each season offers its own charm. October brings wetter days averaging 138 mm (5.4 in) of precipitation, spread over 10 rainy days.
In contrast, the driest month November experiences a drier climate, with about 72 mm (2.8 in) of rainfall spread across 9 rainy days. For more details, please visit our Annapolis Junction 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 Annapolis Junction
Seasonal changes in sunshine hours are quite dramatic in Annapolis Junction. 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 Annapolis Junction by Month
The relative humidity is high throughout the year in Annapolis Junction.
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
Best Time to Visit Annapolis Junction
Rainfall during this time ranges from 97 mm (3.8 in) in April to 138 mm (5.4 in) in October. This means you can expect a mix of sunny days and occasional showers. Seeking the perfect travel destination for this year? We've created a tool that suggests locations matching your desired weather. Let our weather planner guide your travel decisions.
Frequently asked questions about the climate in Annapolis Junction
What is the best time to visit Annapolis Junction?
April, May, June, September and October typically offer the most optimal weather in Annapolis Junction. In contrast, January, February and December tend to have less optimal conditions.
What temperatures can I expect in Annapolis Junction?
Daytime highs range from 6°C (43°F) in January to 31°C (88°F) in July. Nighttime lows range from -5°C (23°F) to 20°C (68°F). Temperatures vary considerably through the year.
How much rain does Annapolis Junction get?
Annual rainfall is around 1207 mm (48 in). October is the wettest month with 138 mm (5.4 in), while November is the driest with 72 mm (2.8 in).
How sunny is Annapolis Junction?
Annapolis Junction 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, Annapolis Junction enjoys abundant sunshine.
Annapolis Junction 3-Day Forecast
Annapolis Junction (MD) 3-Day Forecast
Annapolis Junction on the map
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