Sterling Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Sterling.
Climate overview of Sterling
The climate in Sterling, Virginia, United States of America, is marked by large temperature swings across the seasons, ranging from 31°C (88°F) in July to 6°C (43°F) in January.
The city has a wet climate, receiving around 1078 mm (42 in) of rain/snowfall per year. October is the wettest month. Sunshine peaks in June, when the city sees around 9.4 hours of sunshine per day.
Sterling Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Sterling — and find the best time to visit.
Monthly Temperature in Sterling
In Sterling, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 31°C (88°F) in July to a chilly 6°C (43°F) in January.
Nighttime temperatures range from 20°C (68°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 Sterling
Sterling experiences significant rain/snowfall throughout the year, averaging 1078 mm (42 in) of precipitation annually. The amount of precipitation varies moderately throughout the year. The wettest month, October, sees around 133 mm (5.2 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, February, still receives a respectable 62 mm (2.4 in) of rainfall. For more details, please visit our Sterling 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 Sterling
In Sterling, 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 Sterling by Month
The relative humidity is high throughout the year in Sterling.
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 Sterling
Frequently asked questions about the climate in Sterling
What is the best time to visit Sterling?
September typically offers the most optimal weather in Sterling. In contrast, January, February and December tend to have less optimal conditions.
What temperatures can I expect in Sterling?
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 Sterling get?
Annual rainfall is around 1078 mm (42 in). October is the wettest month with 133 mm (5.2 in), while February is the driest with 62 mm (2.4 in).
How sunny is Sterling?
Sterling 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, Sterling enjoys abundant sunshine.
Sterling 3-Day Forecast
Sterling 3-Day Forecast
Sterling on the map
Sterling is highlighted — select any city to see its climate.
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