Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
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). April generally records an average low-temperature of 46.6°F (8.1°C).Humidity
The average relative humidity in April in West McLean is 71%.Rainfall
In April, the rain falls for 10.8 days. Throughout April, 0.75" (19mm) of precipitation is accumulated. In West McLean, during the entire year, the rain falls for 109 days and collects up to 9.29" (236mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows. During 0.2 snowfall days, in April, West McLean aggregates 0.12" (3mm) of snow. In West McLean, Virginia, during the entire year, snow falls for 10.3 days and aggregates up to 2.28" (58mm) of snow.Daylight
In April, the average length of the day is 13h and 15min.On the first day of the month, sunrise is at 6:52 am and sunset at 7:32 pm. On the last day of April, in West McLean, sunrise is at 6:10 am and sunset at 8:00 pm EDT.
Sunshine
The average sunshine in April in West McLean is 9h.UV index
The average daily maximum UV index in April in West McLean is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The UV index of 4 in April translates into these instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
What is the temperature in April in West McLean?
What is the average humidity in April in West McLean?
How many days does it rain in April in West McLean?
What is the last month it snows in West McLean?
How many hours of daylight does West McLean have in April?
When is the sunrise / sunset in April in West McLean?
How long on average sun shines in April in West McLean?
How high is the UV index in April in West McLean?
Average temperature in April
West McLean, VA
- Average high temperature in April: 64.9°F
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).
- Average low temperature in April: 46.6°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 in April
West McLean, VA
- Average pressure in April: 29.99"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 in April
West McLean, VA
- Average wind speed in April: 7.6mph
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 in April
West McLean, VA
- Average humidity in April: 71%
The months with the highest relative humidity are October and December (76%).
The month with the lowest relative humidity is July (70%).
Average rainfall in April
West McLean, VA
- Average rainfall in April: 0.75"
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 in April
West McLean, VA
- Average rainfall days in April: 10.8 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 in April
West McLean, VA
- Average snowfall in April: 0.12"
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 in April
West McLean, VA
- Average snowfall days in April: 0.2 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 in April /
Average sunshine in April
West McLean, VA
- Average daylight in April: 13h and 1min
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 April: 9h and 0min
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 in April
West McLean, VA
- Average sunshine days in April: 16.8 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 in April
West McLean, VA
- Average UV index in April: 4
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 in April
West McLean, VA
- Average cloud cover in April: 40
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 in April
West McLean, VA
- Average visibility in April: 6mi
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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