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 52.5°F (11.4°C) to an enjoyable 64.9°F (18.3°C). In April, Chantilly encounters an average low-temperature of 45.7°F (7.6°C) during the night.Humidity
The average relative humidity in April in Chantilly is 72%.Rainfall
In Chantilly, in April, it is raining for 15.3 days, with typically 2.8" (71mm) of accumulated precipitation. In Chantilly, during the entire year, the rain falls for 156 days and collects up to 31.18" (792mm) of precipitation.Snowfall
Months with snowfall in Chantilly, Virginia, are January through April, November and December. April is the last month it regularly snows. During 0.3 snowfall days, in April, Chantilly aggregates 0.51" (13mm) of snow. Throughout the year, there are 16.8 snowfall days, and 12.48" (317mm) of snow is accumulated.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
In Chantilly, the average sunshine in April is 8.8h.UV index
The average daily maximum UV index in April in Chantilly, Virginia, is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: In April, the UV index of 4 transforms into the following advice:
Undertake precautions - Guarding against sun damage is counselled. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Enhance your sun protection with tightly woven, yet airy clothing. Be vigilant! The reflective nature of snow can increase the Sun's UV radiation nearly twofold.
Frequently asked questions
What is the usual temperature for Chantilly in April?
What is the average humidity in April in Chantilly?
How much does it rain in Chantilly in April?
What is the last month it snows in Chantilly?
How many hours of daylight does Chantilly have in April?
When are sunrise and sunset in April in Chantilly?
How long on average sun shines in April in Chantilly?
How high is the UV index in April in Chantilly?
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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