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
Chantilly sees a rise in temperature during April, with average high-temperatures transitioning from a fresh 52.5°F (11.4°C) in March to a refreshing 64.9°F (18.3°C). Chantilly records an average nighttime low-temperature of 45.7°F (7.6°C) throughout April.Humidity
In April, the average relative humidity is 72%.Rainfall
In Chantilly, in April, during 15.3 rainfall days, 2.8" (71mm) of precipitation is typically accumulated. In Chantilly, during the entire year, the rain falls for 156 days and collects up to 31.18" (792mm) 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, Chantilly aggregates 0.51" (13mm) of snow. In Chantilly, during the entire year, snow falls for 16.8 days and aggregates up to 12.48" (317mm) of snow.Daylight
In Chantilly, the average length of the day in April is 13h and 15min.On the first day of April, sunrise is at 6:53 am and sunset at 7:33 pm. On the last day of the month, sunrise is at 6:12 am and sunset at 8:01 pm EDT.
Sunshine
The average sunshine in April is 8.8h.UV index
In Chantilly, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 4 during April translates into the following recommendations:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What is the average humidity in April?
How many days does it rain in April?
What is the last month it snows in Chantilly?
What is the average length of the day in April?
What time are sunrise and sunset in April?
How long on average sun shines in April?
What is the UV index intensity in April?
Average temperature in April
Chantilly, VA
- Average high temperature in April: 64.9°F
The warmest month (with the highest average high temperature) is July (88.2°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 (25.7°F).
Average pressure in April
Chantilly, 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
Chantilly, VA
- Average wind speed in April: 7.3mph
The windiest months (with the highest average wind speed) are March and April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in April
Chantilly, VA
- Average humidity in April: 72%
The months with the highest relative humidity are October and December (77%).
The month with the lowest relative humidity is July (71%).
Average rainfall in April
Chantilly, VA
- Average rainfall in April: 2.8"
The wettest month (with the highest rainfall) is August (3.74").
The driest month (with the least rainfall) is September (1.89").
Average rainfall days in April
Chantilly, VA
- Average rainfall days in April: 15.3 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in April
Chantilly, VA
- Average snowfall in April: 0.51"
The month with the highest snowfall is January (3.58").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Chantilly, VA
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is February (5.3 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
Chantilly, 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: 8h and 5min
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 6min).
Average sunshine days in April
Chantilly, VA
- Average sunshine days in April: 13.2 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (12.1 days).
Average UV index in April
Chantilly, 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
Chantilly, VA
- Average cloud cover in April: 42
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in April
Chantilly, VA
- Average visibility in April: 6mi
The months with the highest visibility are February, March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and May (5mi).
Chantilly, Virginia, USA
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