Germantown (MD) Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Germantown.
Climate overview of Germantown
Temperatures in Germantown, Maryland, United States of America, vary greatly throughout the year. July is the hottest month at 30°C (86°F), while January is the coldest at 5°C (41°F).
The city has a wet climate, receiving around 1166 mm (46 in) of rain/snowfall per year. Despite the high annual total, it has very warm summers and cold winters. October is the wettest month. June is the sunniest month, averaging 9.4 hours of sunshine per day.
Germantown Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Germantown - and find the best time to visit.
Monthly Temperature in Germantown
The climate in Germantown is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a very warm 30°C (86°F) in July to a chilly 5°C (41°F) in January.
Nighttime temperatures range from 19°C (66°F) in July to -4°C (25°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Germantown
Germantown has a notably wet climate with abundant precipitation, recording 1166 mm (46 in) of rain/snowfall per year. The amount of precipitation varies moderately throughout the year. The wettest month, October, sees around 141 mm (5.6 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, February, still receives a respectable 68 mm (2.7 in) of rainfall. For more details, please visit our Germantown 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 Germantown
In Germantown, summer days are longer and more sunny, with daily sunshine hours peaking at 9.4 hours in June. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 4.3 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Germantown by Month
The relative humidity is high throughout the year in Germantown.
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 Germantown
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: August
- Warmest weather: July and August
- Most sunshine: June and July
- Seasonal pattern: Very warm summers and cold winters
- Coldest conditions: January, with freezing nights around -4°C (25°F).
Frequently asked questions about the climate in Germantown
What is the best time to visit Germantown?
August typically offers the most optimal weather in Germantown. In contrast, January, February and December tend to have less optimal conditions. Germantown has very warm summers and cold winters.
What temperatures can I expect in Germantown?
Daytime highs range from 5°C (41°F) in January to 30°C (86°F) in July. Nighttime lows range from -4°C (25°F) to 19°C (66°F). Temperatures vary considerably through the year.
How much rain does Germantown get?
Annual rainfall is around 1166 mm (46 in). October is the wettest month with 141 mm (5.6 in), while February is the driest with 68 mm (2.7 in).
How sunny is Germantown?
Germantown 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, Germantown enjoys abundant sunshine.
Germantown 3-Day Forecast
Germantown (MD) 3-Day Forecast
Germantown on the map
Germantown is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Yosemite National Park is definitely worth a visit
Vast forests, blue lakes, towering sequoias, and majestic waterfalls hint at the beauty of Yosemite National Park—a true natural masterpiece.
The 10 most alternative cities in the United States
Discover the top 10 fun and alternative U.S. cities rich in art, culture, and adventure. From Portland's hippy charm to Sedona's stunning landscapes.
Sedona: Explore Majestic Red Rock Landscapes
A picturesque artists' town surrounded by red rocks and known for its spirituality, vortex energy, and stunning hikes like Cathedral Rock.
10 most idyllic villages to visit in the United States
Discover 10 idyllic villages in the USA, from California to Vermont. Explore their unique charm, rich history, stunning nature, and vibrant arts scenes.