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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is another cold winter month in West McLean, Virginia, with temperature in the range of an average high of 40.1°F (4.5°C) and an average low of 26.8°F (-2.9°C). During the coldest month, January, temperatures average a high of 40.1°F (4.5°C) and a low of 26.8°F (-2.9°C). Weather in January »
Weather in February
February, the last month of the winter in West McLean, is a frosty month, with an average temperature ranging between max 44.6°F (7°C) and min 29.5°F (-1.4°C). February's presence records an average high-temperature of a chilly 44.6°F (7°C), closely mirroring January's climate. Weather in February »
Weather in March
March, the first month of the spring in West McLean, is a fresh month, with an average temperature varying between 52.7°F (11.5°C) and 36.9°F (2.7°C). The arrival of March signals a slight increase in the average high-temperature, moving from a frosty 44.6°F (7°C) in February to a cool 52.7°F (11.5°C). Weather in March »
Weather in April
April is an enjoyable spring month in West McLean, Virginia, with temperature in the range of an average high of 64.9°F (18.3°C) and an average low of 46.6°F (8.1°C). The start of April brings a shift in the average high-temperature, increasing from March's cool 52.7°F (11.5°C) to a refreshing 64.9°F (18.3°C). Weather in April »
Weather in May
The last month of the spring, May, is a moderately hot month in West McLean, Virginia, with an average temperature ranging between min 55.9°F (13.3°C) and max 74.8°F (23.8°C). A shift in the average high-temperature is noticeable in May, changing from an enjoyable 64.9°F (18.3°C) in April to a moderately hot 74.8°F (23.8°C). Weather in May »
Weather in June
June, the first month of the summer in West McLean, is still a warm month, with an average temperature fluctuating between 82.8°F (28.2°C) and 63.9°F (17.7°C). June's onset brings a subtle temperature rise, moving from a moderately hot 74.8°F (23.8°C) in May to a still warm 82.8°F (28.2°C). Weather in June »
Weather in July
July in West McLean, Virginia, is a tropical summer month, with an average temperature fluctuating between 69.1°F (20.6°C) and 87.4°F (30.8°C). The warmest temperatures occur during July, when averages reach a peak of 87.4°F (30.8°C) and a low of 69.1°F (20.6°C). The heat index in July is calculated to be a sweltering 98.6°F (37°C). Weather in July »
Weather in August
August, the last month of the summer in West McLean, is also a moderately hot month, with temperature in the range of an average high of 85.6°F (29.8°C) and an average low of 67.6°F (19.8°C). The beginning of August reveals an average high-temperature of a warm 85.6°F (29.8°C), showing minimal deviation from the previous month. Weather in August »
Weather in September
The first month of the autumn, September, is also a moderately hot month in West McLean, Virginia, with temperature in the range of an average high of 78.6°F (25.9°C) and an average low of 61.2°F (16.2°C). September heralds a minor drop in average high-temperature, sliding from August's warm 85.6°F (29.8°C) to a still moderately hot 78.6°F (25.9°C). Weather in September »
Weather in October
October, like September, in West McLean, Virginia, is another enjoyable autumn month, with an average temperature fluctuating between 50.7°F (10.4°C) and 66.4°F (19.1°C). October indicates a shift in the average high-temperature, from September's warm 78.6°F (25.9°C) to a refreshing 66.4°F (19.1°C). Weather in October »
Weather in November
The last month of the autumn, November, is also a fresh month in West McLean, Virginia, with temperature in the range of an average low of 39°F (3.9°C) and an average high of 54.1°F (12.3°C). The onset of November results in a decrease in the average high-temperature, receding from an enjoyable 66.4°F (19.1°C) in October to a cool 54.1°F (12.3°C). Weather in November »
Weather in December
December, the first month of the winter in West McLean, is still a chilly month, with an average temperature varying between 45.5°F (7.5°C) and 33.1°F (0.6°C). The arrival of December corresponds with a minor reduction in the average high-temperature, down from November's cool 54.1°F (12.3°C) to a frosty 45.5°F (7.5°C). Weather in December »
[Resources]Frequently asked questions
What is the coldest time of year in West McLean?
January, having an average high-temperature of 40.1°F (4.5°C) and an average low-temperature of 26.8°F (-2.9°C), is the coldest month in West McLean.
What is the driest month in West McLean?
January and September are months with the least rain when the rain falls for 6 days and typically aggregates up to 0.51" (13mm) of rain.
How many days does it rain in West McLean?
In West McLean, Virginia, during the entire year, the rain falls for 109 days and collects up to 9.29" (236mm) of precipitation.
When does it snow in West McLean?
Months with snowfall in West McLean, Virginia, are January through April, November and December.
What is the snowiest month in West McLean?
January is the month with the most snowfall in West McLean. Snow falls for 2.7 days and accumulates 0.98" (25mm) of snow.
How much does it snow in West McLean?
In West McLean, during the entire year, snow falls for 10.3 days and aggregates up to 2.28" (58mm) of snow.
What are the months with the lowest UV index in West McLean?
The months with the lowest UV index in West McLean, Virginia, are January, November and December, with an average maximum UV index of 2.
What is the month with the least sunshine in West McLean?
The months with the least sunshine in West McLean, Virginia, are February and December, with an average of 5.1h of sunshine.
When is Daylight Saving Time (DST) in West McLean?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from EST to EDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from EDT to EST.
When it does not snow in West McLean?
May through October are months without snowfall.
What is the month with the highest UV index in West McLean?
The months with the highest UV index in West McLean, Virginia, are May through August, with an average maximum UV index of 6.
When are the longest days in West McLean?
June has the longest days of the year in West McLean, with an average of 14h and 54min of daylight.
What are the warmest months in West McLean?
July is the month when West McLean's temperatures reach their peak, with averages of 87.4°F (30.8°C) and lows of 69.1°F (20.6°C).
What is the least humid month in West McLean?
With an average relative humidity of 70%, July is the least humid month in West McLean.
What month has the most sunshine in West McLean?
July has the most sunshine of the year in West McLean, with an average of 10.9h of sunshine.
What is the rainiest month in West McLean?
August is the month with the most rainfall. Rain falls for 13 days and accumulates 1.5" (38mm) of precipitation.
What are the most humid months in West McLean?
The months with the highest humidity in West McLean, Virginia, are October and December, with an average relative humidity of 76%.
What is the month with the shortest days in West McLean?
With an average of 9h and 30min of daylight, December has the shortest days of the year in West McLean, Virginia.
Average temperature
West McLean, VA
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (40.1°F).
The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure
West McLean, VA
- Average pressure in January:
30.11"Hg - Average pressure in February:
30.07"Hg - Average pressure in March:
30.08"Hg - Average pressure in April:
29.99"Hg - Average pressure in May:
30.01"Hg - Average pressure in June:
29.95"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.99"Hg - Average pressure in September:
30.05"Hg - Average pressure in October:
30.04"Hg - Average pressure in November:
30.14"Hg - Average pressure in December:
30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed
West McLean, VA
- Average wind speed in January:
7.4mph - Average wind speed in February:
7.5mph - Average wind speed in March:
7.7mph - Average wind speed in April:
7.6mph - Average wind speed in May:
6.3mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
5mph - Average wind speed in August:
4.9mph - Average wind speed in September:
5.5mph - Average wind speed in October:
6.5mph - Average wind speed in November:
6.8mph - Average wind speed in December:
6.8mph
The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity
West McLean, VA
The months with the highest relative humidity are October and December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall
West McLean, VA
- Average rainfall in January:
0.51" - Average rainfall in February:
0.55" - Average rainfall in March:
0.63" - Average rainfall in April:
0.75" - Average rainfall in May:
0.75" - Average rainfall in June:
0.94"
- Average rainfall in July:
1.18" - Average rainfall in August:
1.5" - Average rainfall in September:
0.51" - Average rainfall in October:
0.67" - Average rainfall in November:
0.63" - Average rainfall in December:
0.67"
The wettest month (with the highest rainfall) is August (1.5").
The driest months (with the least rainfall) are January and September (0.51").
Average rainfall days
West McLean, VA
- Average rainfall days in January:
6 days - Average rainfall days in February:
6.3 days - Average rainfall days in March:
9.2 days - Average rainfall days in April:
10.8 days - Average rainfall days in May:
10.8 days - Average rainfall days in June:
11.3 days
- Average rainfall days in July:
13.5 days - Average rainfall days in August:
13 days - Average rainfall days in September:
8.1 days - Average rainfall days in October:
7.5 days - Average rainfall days in November:
5.6 days - Average rainfall days in December:
6.9 days
The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is November (5.6 days).
Average snowfall
West McLean, VA
The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days
West McLean, VA
- Average snowfall days in January:
2.7 days - Average snowfall days in February:
3.6 days - Average snowfall days in March:
2.3 days - Average snowfall days in April:
0.2 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.3 days - Average snowfall days in December:
1.2 days
The month with the highest number of snowfall days is February (3.6 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
West McLean, VA
- Average daylight in January:
9h and 5min - Average daylight in February:
10h and 5min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 1min - Average daylight in May:
14h and 2min - Average daylight in June:
14h and 5min
- Average daylight in July:
14h and 4min - Average daylight in August:
13h and 4min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 1min - Average daylight in November:
10h and 1min - Average daylight in December:
9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in January:
5h and 1min - Average sunshine in February:
5h and 1min - Average sunshine in March:
6h and 5min - Average sunshine in April:
9h and 0min - Average sunshine in May:
9h and 0min - Average sunshine in June:
10h and 2min
- Average sunshine in July:
10h and 5min - Average sunshine in August:
10h and 2min - Average sunshine in September:
9h and 0min - Average sunshine in October:
5h and 4min - Average sunshine in November:
5h and 5min - Average sunshine in December:
5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days
West McLean, VA
- Average sunshine days in January:
22.1 days - Average sunshine days in February:
18.3 days - Average sunshine days in March:
18.3 days - Average sunshine days in April:
16.8 days - Average sunshine days in May:
16.6 days - Average sunshine days in June:
15.9 days
- Average sunshine days in July:
14.3 days - Average sunshine days in August:
14.9 days - Average sunshine days in September:
19.1 days - Average sunshine days in October:
21.4 days - Average sunshine days in November:
23 days - Average sunshine days in December:
22 days
The month with the most sunshine days is November (23 days).
The month with the least sunshine days is July (14.3 days).
Average UV index
West McLean, VA
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover
West McLean, VA
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility
West McLean, VA
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
West McLean, Virginia, USA
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