April weather forecast
Reston, VA

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Weather in April

April is an enjoyable spring month in Reston, Virginia, with an average temperature fluctuating between 45.9°F (7.7°C) and 64.9°F (18.3°C).

Temperature

April's arrival brings a change in high-temperatures, moving from a fresh 52.5°F (11.4°C) in March to an enjoyable 64.9°F (18.3°C). Throughout the month of April, Reston expects an average low of 45.9°F (7.7°C).

Humidity

The average relative humidity in April in Reston is 71%.

Rainfall

In Reston, in April, during 14.8 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. Throughout the year, in Reston, there are 152.8 rainfall days, and 27.64" (702mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, November and December. April is the last month it regularly snows in Reston. During 0.1 snowfall days, in April, Reston aggregates 0.04" (1mm) of snow. Throughout the year, in Reston, there are 13.9 snowfall days, and 7.2" (183mm) of snow is accumulated.

Daylight

In Reston, Virginia, the average length of the day in April is 13h and 15min.
On the first day of April in Reston, 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

The average sunshine in April is 8.8h.

UV index

The average daily maximum UV index in April is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 4 during April translates into these guidelines:
Make use of precautions - It is urged to ward off sun damage. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in April in Reston?

The high-temperature in Reston during April is 64.9°F (18.3°C) and the low-temperature is 45.9°F (7.7°C).

What is the average humidity in April in Reston?

In April, the average relative humidity in Reston is 71%.

How many days does it rain in April in Reston?

In Reston, in April, during 14.8 rainfall days, 2.24" (57mm) of precipitation is typically accumulated.

What is the last month it snows in Reston?

April is the last month it regularly snows in Reston, Virginia. During 0.1 snowfall days, in April, Reston aggregates 0.04" (1mm) of snow.

How many hours of daylight does Reston have in April?

The average day length in April in Reston is 13h and 15min.

When are sunrise and sunset in April in Reston?

In April, on the first day of the month, sunrise is at 6:52 am and sunset at 7:33 pm. On the last day of the month, in Reston, Virginia, sunrise is at 6:11 am and sunset at 8:01 pm EDT.

How long on average sun shines in April in Reston?

The average sunshine duration in April in Reston, Virginia, is 8.8h.

What is the UV index intensity in April in Reston?

In April, the average daily maximum UV index in Reston is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in April
Reston, VA

Average temperature in April - Reston, VA
  • Average high temperature in April: 64.9°F

The warmest month (with the highest average high temperature) is July (87.6°F).
The month with the lowest average high temperature is January (39.7°F).

  • Average low temperature in April: 45.9°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (26.4°F).

Average pressure in April
Reston, VA

Average pressure in April - Reston, 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
Reston, VA

Average wind speed in April - Reston, VA
  • Average wind speed in April: 7.6mph

The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

Average humidity in April
Reston, VA

Average humidity in April - Reston, VA
  • Average humidity in April: 71%

The months with the highest relative humidity are October and December (76%).
The month with the lowest relative humidity is July (69%).

Average rainfall in April
Reston, VA

Average rainfall in April - Reston, VA
  • Average rainfall in April: 2.24"

The wettest month (with the highest rainfall) is August (3.39").
The driest month (with the least rainfall) is January (1.77").

Average rainfall days in April
Reston, VA

Average rainfall days in April - Reston, VA
  • Average rainfall days in April: 14.8 days

The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is November (9.3 days).

Average snowfall in April
Reston, VA

Average snowfall in April - Reston, VA
  • Average snowfall in April: 0.04"

The month with the highest snowfall is January (2.28").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in April
Reston, VA

Average snowfall days in April - Reston, VA
  • Average snowfall days in April: 0.1 days

The month with the highest number of snowfall days is January (4.6 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
Reston, VA

Average daylight in April / Average sunshine in April - Reston, 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 0min).

Average sunshine days in April
Reston, VA

Average sunshine days in April - Reston, VA
  • Average sunshine days in April: 13.3 days

The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is May (12.8 days).

Average UV index in April
Reston, VA

Average UV index in April - Reston, 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
Reston, VA

Average cloud cover in April - Reston, 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
Reston, VA

Average visibility in April - Reston, 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).

Reston, Virginia, USA

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