April weather forecastSterling, VA
April
Weather in April
April brings in the full bloom of spring in Sterling, Virginia. It is a noticeable depart from the March weather because of the warmer temperatures and the blossoming landscapes. The lack of snowfall, owing to the higher temperatures, gives a desirable boost to outdoor activities. Spring festivities continue in full swing, capitalizing on the favorable weather conditions. A rich display of flora contributes to the scenic beauty, making it one of the most enticing months of the year.Temperature
April in Sterling indicates a change in the average high-temperature, moving up from a fresh 52.5°F (11.4°C) in March to a comfortable 64.9°F (18.3°C). During April, Sterling experiences an average low-temperature of 45.7°F (7.6°C) at night.Humidity
The average relative humidity in April in Sterling, Virginia, is 72%.Rainfall
In Sterling, in April, it is raining for 15.4 days, with typically 2.8" (71mm) of accumulated precipitation. In Sterling, during the entire year, the rain falls for 158.1 days and collects up to 31.46" (799mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. April is the last month it regularly snows. During 0.3 snowfall days, in April, Sterling aggregates 0.28" (7mm) of snow. Throughout the year, in Sterling, Virginia, there are 16.7 snowfall days, and 12.28" (312mm) of snow is accumulated.Daylight
The average length of the day in April is 13h and 15min.On the first day of the month, sunrise is at 6:52 am and sunset at 7:33 pm. On the last day of April, sunrise is at 6:11 am and sunset at 8:01 pm EDT.
Sunshine
The average sunshine in April is 8.7h.UV index
The average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: An average UV index of 4 in April transforms into this advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in April
Sterling, VA
- Average high temperature in April: 64.9°F
The warmest month (with the highest average high temperature) is July (87.8°F).
The month with the lowest average high temperature is January (39.7°F).
- Average low temperature in April: 45.7°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (25.9°F).
Average pressure in April
Sterling, 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
Sterling, VA
- Average wind speed in April: 7.4mph
The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in April
Sterling, VA
- Average humidity in April: 72%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (70%).
Average rainfall in April
Sterling, VA
- Average rainfall in April: 2.8"
The wettest month (with the highest rainfall) is August (3.78").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in April
Sterling, VA
- Average rainfall days in April: 15.4 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is January (9.3 days).
Average snowfall in April
Sterling, VA
- Average snowfall in April: 0.28"
The month with the highest snowfall is January (3.54").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Sterling, VA
- Average snowfall days in April: 0.3 days
The months with the highest number of snowfall days are January and February (5.1 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
Sterling, VA
- Average daylight in April: 13h and 18min
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: 8h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 0min).
Average sunshine days in April
Sterling, VA
- Average sunshine days in April: 12.8 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in April
Sterling, 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, February, November and December (UV index 2).
Average cloud cover in April
Sterling, VA
- Average cloud cover in April: 42
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in April
Sterling, 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).
