March 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 March

The first month of the spring, March, is a cool month in Washington, District of Columbia, with average temperature fluctuating between 37.2°F (2.9°C) and 53.2°F (11.8°C).

Temperature

In Washington, the average high-temperature in March slightly increases, from a chilly 44.8°F (7.1°C) in February, to a fresh 53.2°F (11.8°C). In March, the average low-temperature is 37.2°F (2.9°C).

Humidity

In Washington, the average relative humidity is 72%.

Rainfall

In Washington, District of Columbia, during March, the rain falls for 12.7 days and regularly aggregates up to 1.93" (49mm) 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

January through March and December are months with snowfall in Washington. March is the last month it regularly snows in Washington. During 2.1 snowfall days, Washington aggregates 1.54" (39mm) of snow. Throughout the year, in Washington, there are 11.7 snowfall days, and 6.3" (160mm) of snow is accumulated.

Daylight

The average length of the day in Washington is 12h.

Sunshine

In March, the average sunshine is 6.9h.

UV index

In March, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from the exposure to the Sun's UV rays for the average person.
Note: The daily maximum UV index of 3 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the average humidity in March in Washington?

The average relative humidity in March in Washington is 72%.

How much does it rain in Washington in March?

In Washington, in March, during 12.7 rainfall days, 1.93" (49mm) of precipitation is typically accumulated.

What is the last month it snows in Washington?

March is the last month it regularly snows in Washington. During 2.1 snowfall days, in March, Washington aggregates 1.54" (39mm) of snow.

How many hours of daylight does Washington have in March?

The average length of the day in March in Washington is 12h.

How many hours of sunshine does Washington have in March?

The average sunshine in March in Washington is 6.9h.

How high is the UV index in March in Washington?

The average daily maximum UV index in March in Washington, District of Columbia, is 3. A UV Index of 3 to 5 symbolizes a medium health risk from the exposure to the Sun's UV rays.

Average temperature in March
Washington, DC

Average temperature in March - Washington, DC
  • Average high temperature in March: 11.8°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 March: 2.9°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 March
Washington, DC

Average pressure in March - Washington, DC
  • Average pressure in March: 1018.5mbar

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 March
Washington, DC

Average wind speed in March - Washington, DC
  • Average wind speed in March: 12.7km/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 March
Washington, DC

Average humidity in March - Washington, DC
  • Average humidity in March: 72%

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 March
Washington, DC

Average rainfall in March - Washington, DC
  • Average rainfall in March: 49mm

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 March
Washington, DC

Average rainfall days in March - Washington, DC
  • Average rainfall days in March: 12.7 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 March
Washington, DC

Average snowfall in March - Washington, DC
  • Average snowfall in March: 39mm

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 March
Washington, DC

Average snowfall days in March - Washington, DC
  • Average snowfall days in March: 2.1 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 March /
Average sunshine in March
Washington, DC

Average daylight in March / Average sunshine in March - Washington, DC
  • Average daylight in March: 12h

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 March: 6.9h

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 March
Washington, DC

Average sunshine days in March - Washington, DC
  • Average sunshine days in March: 16.2 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 March
Washington, DC

Average UV index in March - Washington, DC
  • Average UV index in March: 3

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 March
Washington, DC

Average cloud cover in March - Washington, DC
  • Average cloud cover in March: 46

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 March
Washington, DC

Average visibility in March - Washington, DC
  • Average visibility in March: 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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