Washington
District of Columbia, USA
Long-term weather forecast
Long-term weather forecast

March weather forecast and Climate
Washington, DC

Stunning reflective view of rows of jacaranda trees in spring in the tidal basin of the Washington monument in DC, USA
Stunning reflective view of rows of jacaranda trees in spring in the tidal basin of the Washington monument in DC, USA
Spring starts in March and is mild with daily average high temperature in the region of 55°F (12.8°C). Blooming flowers along the National Mall are a joy to both tourists and locals.
Spring breaks and the end of the frigid cold add to the crowds in Washington, D.C. in March. Humidity levels drop down, but a light jacket is advisable as the rain is unpredictable. Better, be equipped with some warm clothes as there is always a possibility of an odd cold wave or two.
  • The average high temperature in March: 13.3°C

The warmest month (with the highest average high temperature) is July (31.3°C).
The month with the lowest average high temperature is January (6.3°C).

  • The average low temperature in March: 3.1°C

The month with the highest average low temperature is July (21.7°C).
The coldest month (with the lowest average low temperature) is January (-1.9°C).

  • The average humidity in March: 58.6%

The month with the highest relative humidity is September (69.7%).
The month with the lowest relative humidity is April (58%).

  • The average rainfall in March: 88.4mm

The wettest month (with the highest rainfall) is May (101.3mm).
The driest month (with the lowest rainfall) is February (66.5mm).

  • The average rainfall days in March: 10.5 days

The month with the highest number of rainy days is May (11.1 days).
The month with the lowest number of rainy days is October (7.7 days).

  • The average snowfall in March: 33mm

The month with the highest snowfall is February (144.8mm).
Months with the lowest snowfall are April, May, June, July, August, September and October (0mm).

  • The average snowfall days in March: 0.9 days

The month with the highest number of snowfall days is January (3 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

  • The average daylight in March: 12h

Months with the longest days are June and July (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9h).

  • The average sunshine in March: 6.6h

The month with most sunshine is June (Average sunshine: 9.4h).
The month with least sunshine is December (Average sunshine: 4.3h).

  • The average UV index in March: 5

Months with the highest UV index are June and July (UV index 9).
Months with the lowest UV index are January and December (UV index 2).

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