April weather forecast and climate
Washington, DC

Rows of jacaranda trees in spring in the tidal basin of the Washington Monument in Washington city, DC, USA
Rows of jacaranda trees in spring in the tidal basin of the Washington Monument in Washington city, DC, USA

Weather in April

April in Washington, District of Columbia, is an enjoyable spring month, with temperature in the range of an average low of 47.3°F (8.5°C) and an average high of 65.1°F (18.4°C).

Temperature

In Washington, District of Columbia, the average high-temperature in April increases, from a cool 53.2°F (11.8°C) in March, to an enjoyable 65.1°F (18.4°C). The average low-temperature, in Washington, is 47.3°F (8.5°C).

Humidity

April and July, with an average relative humidity of 71%, are the least humid months in Washington.

Rainfall

In Washington, during April, the rain falls for 14.4 days and regularly aggregates up to 2.09" (53mm) of precipitation. In Washington, during the entire year, the rain falls for 149.1 days and collects up to 26.14" (664mm) of precipitation.

Snowfall

April through November are months without snowfall in Washington.

Daylight

In Washington, the average length of the day is 13.3h.

Sunshine

The average sunshine in April is 8.9h.

UV index

In Washington, District of Columbia, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 4 in April interpret into the following advice:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What are the least humid months in Washington?

Months with the lowest humidity are April and July, with an average relative humidity of 71%.

What is the average humidity in April in Washington?

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

How many days does it rain in April in Washington?

In Washington, in April, it is raining for 14.4 days, with typically 2.09" (53mm) of accumulated precipitation.

When it does not snow in Washington?

In Washington, District of Columbia, snow does not fall in April through November.

Does it snow in Washington in April?

In April, it doesn't snow. March is the latest month when it typically snows.

What is the average length of the day in April in Washington?

In Washington, District of Columbia, the average length of the day in April is 13.3h.

How many hours of sunshine does Washington have in April?

In Washington, District of Columbia, the average sunshine in April is 8.9h.

What is the UV index intensity in April in Washington?

In Washington, the average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to the UV radiation.

Average temperature in April
Washington, DC

Average temperature in April - Washington, DC
  • Average high temperature in April: 18.4°C

The warmest month (with the highest average high temperature) is July (31.1°C).
The month with the lowest average high temperature is January (4.8°C).

  • Average low temperature in April: 8.5°C

The month with the highest average low temperature is July (20.6°C).
The coldest month (with the lowest average low temperature) is January (-2.5°C).

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Average pressure in April
Washington, DC

Average pressure in April - Washington, DC
  • Average pressure in April: 1015.7mbar

The month with the highest atmospheric pressure is November (1020.6mbar).
The month with the lowest atmospheric pressure is June (1014.1mbar).

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Average wind speed in April
Washington, DC

Average wind speed in April - Washington, DC
  • Average wind speed in April: 12.5km/h

The windiest month (with the highest average wind speed) is March (12.7km/h).
The calmest month (with the lowest average wind speed) is August (8.1km/h).

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Average humidity in April
Washington, DC

Average humidity in April - Washington, DC
  • Average humidity in April: 71%

The month with the highest relative humidity is May (76%).
Months with the lowest relative humidity are April and July (71%).

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Average rainfall in April
Washington, DC

Average rainfall in April - Washington, DC
  • Average rainfall in April: 53mm

The wettest month (with the highest rainfall) is August (88mm).
The driest month (with the least rainfall) is January (40mm).

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Average rainfall days in April
Washington, DC

Average rainfall days in April - Washington, DC
  • Average rainfall days in April: 14.4 days

The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is November (8.1 days).

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Average snowfall in April
Washington, DC

Average snowfall in April - Washington, DC
  • Average snowfall in April: 0mm

The month with the highest snowfall is January (55mm).
Months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

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Average snowfall days in April
Washington, DC

Average snowfall days in April - Washington, DC
  • Average snowfall days in April: 0 days

Months with the highest number of snowfall days are January and February (3.8 days).
Months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in April /
Average sunshine in April
Washington, DC

Average daylight in April / Average sunshine in April - Washington, DC
  • Average daylight in April: 13.3h

The month with the longest days is June (Average daylight: 14.9h).
The month with the shortest days is December (Average daylight: 9.5h).

  • Average sunshine in April: 8.9h

The month with the most sunshine is July (Average sunshine: 10.7h).
Months with the least sunshine are January, February and December (Average sunshine: 5.1).

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Average sunshine days in April
Washington, DC

Average sunshine days in April - Washington, DC
  • Average sunshine days in April: 14.1 days

The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (12.8 days).

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Average UV index in April
Washington, DC

Average UV index in April - Washington, DC
  • Average UV index in April: 4

The month with the highest UV index is June (UV index 7).
Months with the lowest UV index are January and December (UV index 2).

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Average cloud cover in April
Washington, DC

Average cloud cover in April - Washington, DC
  • Average cloud cover in April: 41

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).

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Average visibility in April
Washington, DC

Average visibility in April - Washington, DC
  • Average visibility in April: 9km

Months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is May (8km).

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