Weather & Climate at Naval Research Laboratory in Washington, DC

Summary of the weather and climate in Washington, DC:

  • The average high in Washington, DC is 66.7°F and average low is 49.5°F
  • The hottest month is July with an high of 88.4°F
  • The coldest month is January with an low of 28.6°F
  • Annual rainfall is 39.74 inches. The rainiest month is May with an average of 3.99 inches.
  • Annual snowfall is 15.4 inches. The snowiest month is February with an average of 5.7 inches.

SOURCE: NOAA.GOV

Climate Table — Naval Research Laboratory

Monthly Averages:

High (°F)Low (°F)Rainfall (inches)Snowfall (inches)
January 43.4 28.6 2.81 5.6
February 47.1 30.9 2.62 5.7
March 55.9 37.6 3.48 1.3
April 66.6 47 3.06 0
May 75.4 56.5 3.99 0
June 84.2 66.3 3.78 0
July 88.4 71.1 3.73 0
August 86.5 69.7 2.93 0
September 79.5 62.4 3.72 0
October 68.4 50.6 3.4 0
November 57.9 41.2 3.17 0.5
December 46.8 32.5 3.05 2.3

Climate Charts — Naval Research Laboratory

Weather through the year:



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