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 shift into April brings an increase in the average high-temperature, moving from a fresh 53.2°F (11.8°C) in March to an enjoyable 65.7°F (18.7°C). During the nights in April, the temperature averages to a frosty 45.9°F (7.7°C).Humidity
In Manassas, Virginia, the average relative humidity in April is 73%.Rainfall
In Manassas, in April, it is raining for 15.7 days, with typically 2.87" (73mm) of accumulated precipitation. Throughout the year, there are 157.5 rainfall days, and 30.35" (771mm) of precipitation is accumulated.Snowfall
Months with snowfall in Manassas are January through April, November and December. April is the last month it regularly snows. During 0.3 snowfall days, in April, Manassas aggregates 0.43" (11mm) of snow. In Manassas, during the entire year, snow falls for 15.8 days and aggregates up to 11.5" (292mm) of snow.Daylight
The average length of the day in April is 13h and 14min.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 April, the average sunshine is 9h.UV index
In Manassas, 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 average individuals.Note: The maximum daily UV index, 4 in April, converts into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Manassas in April?
What is the average humidity in April in Manassas?
How many days does it rain in April in Manassas?
What is the last month it snows in Manassas?
How many hours of daylight does Manassas have in April?
When are sunrise and sunset in April in Manassas?
How long on average sun shines in April in Manassas?
What is the UV index intensity in April in Manassas?
Average temperature in April
Manassas, VA
- Average high temperature in April: 65.7°F
The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is January (40.6°F).
- Average low temperature in April: 45.9°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in April
Manassas, 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
Manassas, VA
- Average wind speed in April: 7mph
The windiest months (with the highest average wind speed) are March and April (7mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in April
Manassas, VA
- Average humidity in April: 73%
The month with the highest relative humidity is December (78%).
The month with the lowest relative humidity is July (72%).
Average rainfall in April
Manassas, VA
- Average rainfall in April: 2.87"
The wettest month (with the highest rainfall) is August (3.43").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in April
Manassas, VA
- Average rainfall days in April: 15.7 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is November (9.3 days).
Average snowfall in April
Manassas, VA
- Average snowfall in April: 0.43"
The month with the highest snowfall is January (3.7").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in April
Manassas, VA
- Average snowfall days in April: 0.3 days
The month with the highest number of snowfall days is February (5.2 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
Manassas, VA
- Average daylight in April: 13h and 1min
The month with the longest days is June (Average daylight: 14h and 48min).
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 42min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 12min).
Average sunshine days in April
Manassas, VA
- Average sunshine days in April: 12.9 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in April
Manassas, 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
Manassas, VA
- Average cloud cover in April: 41
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
Manassas, VA
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, June, July, August and November (6mi).
The months with the lowest visibility are May, September, October and December (5mi).
Manassas, Virginia, USA
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