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

Temperature

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

Humidity

In Washington, the average relative humidity in March is 72%.

Rainfall

In Washington, it is raining for 12.7 days, with typically 1.93" (49mm) of accumulated precipitation. Throughout the year, there are 149.1 rainfall days, and 26.14" (664mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Washington, District of Columbia, are January through March and December. 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, District of Columbia, 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 Washington, the average sunshine is 6.9h.

UV index

In Washington, District of Columbia, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to the UV radiation for the average person.
Note: The daily maximum UV index of 3 interpret into the following advice:
Take precautions - Protection against the skin and eye damage is obliged. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in March in Washington?

In March, in Washington, the average high-temperature is 53.2°F (11.8°C), and the average low-temperature is 37.2°F (2.9°C).

What is the average humidity in March in Washington?

In March, the average relative humidity 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. During 2.1 snowfall days, in March, Washington aggregates 1.54" (39mm) of snow.

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

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

How many hours of sunshine does Washington have in March?

In Washington, District of Columbia, the average sunshine in March is 6.9h.

What is the UV index reading in March in Washington?

In Washington, District of Columbia, the average daily maximum UV index in March is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from the exposure to the Sun's UV radiation.
Average temperature in March - Washington, DC
  • Average high temperature in March: 53.2°F

The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (40.6°F).

  • Average low temperature in March: 37.2°F

The month with the highest average low temperature is July (69.1°F).
The coldest month (with the lowest average low temperature) is January (27.5°F).

Average pressure in March - Washington, DC
  • Average pressure in March: 30.08"

The month with the highest atmospheric pressure is November (30.14").
The month with the lowest atmospheric pressure is June (29.95").

Average wind speed in March - Washington, DC
  • Average wind speed in March: 7.9mph

The windiest month (with the highest average wind speed) is March (7.9mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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%).

Average rainfall in March - Washington, DC
  • Average rainfall in March: 1.93"

The wettest month (with the highest rainfall) is August (3.46").
The driest month (with the least rainfall) is January (1.57").

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).

Average snowfall in March - Washington, DC
  • Average snowfall in March: 1.54"

The month with the highest snowfall is January (2.17").
Months with the least snowfall are April, May, June, July, August, September, October and November (0").

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).

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).

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).

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).

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).

Average visibility in March - Washington, DC
  • Average visibility in March: 6mi

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).