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 onset of April in Sterling marks an increase in the average high-temperature, moving from a fresh 52.5°F (11.4°C) in March to a refreshing 64.9°F (18.3°C). Sterling, during April, witnesses an average low-temperature of 45.7°F (7.6°C).Humidity
The average relative humidity in April in Sterling, Virginia, is 72%.Rainfall
In April, the rain falls for 15.4 days. Throughout April, 2.8" (71mm) of precipitation is accumulated. 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. In Sterling, during the entire year, snow falls for 16.7 days and aggregates up to 12.28" (312mm) of snow.Daylight
The average length of the day in April in Sterling is 13h and 15min.On the first day of April in Sterling, sunrise is at 6:52 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:11 am and sunset at 8:01 pm EDT.
Sunshine
In Sterling, Virginia, the average sunshine in April is 8.7h.UV index
In Sterling, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The daily maximum UV index of 4 in April interprets into the following advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Stay sun-safe with clothing that is both closely woven and worn loosely. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
What is the temperature in April in Sterling?
What is the average humidity in April in Sterling?
How much does it rain in Sterling in April?
What is the last month it snows in Sterling?
How many hours of daylight does Sterling have in April?
What time are sunrise and sunset in April in Sterling?
How many hours of sunshine does Sterling have in April?
How high is the UV index in April in Sterling?
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 2min
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 4min
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).
Sterling, Virginia, USA
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