McLean Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit McLean.
Climate overview of McLean
McLean, Virginia, United States of America, sees big temperature differences between seasons, with July peaking at 31°C (88°F) and January dropping to 6°C (43°F).
The city receives considerable rain/snowfall, with around 1166 mm (46 in) annually. June is the wettest month. Sunshine peaks in June, when the city sees around 9.4 hours of sunshine per day.
McLean Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in McLean — and find the best time to visit.
Monthly Temperature in McLean
Visitors to McLean can expect significant temperature changes throughout the year. Typically, average maximum daytime temperatures range from a very warm 31°C (88°F) in July to a chilly 6°C (43°F) in the coolest month, January.
Nights vary from 20°C (68°F) in July to around -4°C (25°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in McLean
McLean is known for its substantial rain/snowfall, with annual precipitation reaching 1166 mm (46 in). McLean offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between the wettest month June (137 mm (5.4 in)) and the driest month February (67 mm (2.6 in)) is not too significant. For more details, please visit our McLean 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 McLean
For those who appreciate different seasons, McLean serves as an ideal destination. Expect longer, more sun-filled days in June with an average of 9.4 hours of sunshine daily, and embrace the darker days in December, offering only 4.3 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in McLean by Month
The relative humidity is high throughout the year in McLean.
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 McLean
The mean wind speed varies between 4 m/s (8 knots) and 5 m/s (10 knots) throughout the year. It is lowest in May, June, July, August, September, October, November and December and highest during January, February, March and April. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit McLean
The weather does bring rainfall during this period, between 87 mm (3.4 in) and 137 mm (5.4 in). Planning your next adventure but unsure where to go? Our climate tool suggests perfect locations tailored to your preferred weather conditions. Discover your ideal travel destination with our weather planner.
Frequently asked questions about the climate in McLean
What is the best time to visit McLean?
April typically offers the most optimal weather in McLean. In contrast, January, February and December tend to have less optimal conditions.
What temperatures can I expect in McLean?
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 McLean get?
Annual rainfall is around 1166 mm (46 in). June is the wettest month with 137 mm (5.4 in), while February is the driest with 67 mm (2.6 in).
How sunny is McLean?
McLean 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, McLean enjoys abundant sunshine.
McLean 3-Day Forecast
McLean 3-Day Forecast
McLean on the map
McLean is highlighted — select any city to see its climate.
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