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
April's arrival coincides with a temperature rise, moving from March's fresh 52.7°F (11.5°C) to a comfortable 65.1°F (18.4°C). In the month of April, the temperature in Vienna, Virginia, generally rests at an average low of 46.2°F (7.9°C).Humidity
The average relative humidity in April in Vienna is 72%.Rainfall
In April, in Vienna, the rain falls for 15.6 days. Throughout April, 2.8" (71mm) of precipitation is accumulated. Throughout the year, there are 162 rainfall days, and 31.65" (804mm) of precipitation is accumulated.Snowfall
January through April, November and December are months with snowfall in Vienna. April is the last month it regularly snows. During 0.2 snowfall days, in April, Vienna aggregates 0.28" (7mm) of snow. Throughout the year, in Vienna, there are 18 snowfall days, and 11.18" (284mm) 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, in Vienna, sunrise is at 6:11 am and sunset at 8:01 pm EDT.
Sunshine
In April, the average sunshine in Vienna is 9h.UV index
In Vienna, the average daily maximum UV index in April is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 4 in April leads to these recommendations:
Heed the precautions - It is counselled to guard against solar damage. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Be alert to the fact! The reflection from snow can nearly double the UV radiation of the Sun.
Frequently asked questions
What is the average April temperature in Vienna?
What is the average humidity in April in Vienna?
How many days does it rain in April in Vienna?
What is the last month it snows in Vienna?
What is the average length of the day in April in Vienna?
When are sunrise and sunset in April in Vienna?
How long on average sun shines in April in Vienna?
How high is the UV index in April in Vienna?
Average temperature in April
Vienna, VA
- Average high temperature in April: 65.1°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in April: 46.2°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).
Average pressure in April
Vienna, 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
Vienna, VA
- Average wind speed in April: 7.3mph
The windiest month (with the highest average wind speed) is March (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in April
Vienna, 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
Vienna, 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 (2.01").
Average rainfall days in April
Vienna, VA
- Average rainfall days in April: 15.6 days
The months with the highest number of rainy days are May and August (17.3 days).
The month with the least rainy days is November (9.1 days).
Average snowfall in April
Vienna, 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
Vienna, VA
- Average snowfall days in April: 0.2 days
The month with the highest number of snowfall days is January (5.6 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
Vienna, 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: 9h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 12min).
Average sunshine days in April
Vienna, VA
- Average sunshine days in April: 12.6 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in April
Vienna, 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
Vienna, VA
- Average cloud cover in April: 40
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in April
Vienna, 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).
Vienna, Virginia, USA
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