Climate & Temperature > Usa > Washington, D.C.

Washington, D.C. Climate Guide to the Average Weather & Temperatures with Graphs Elucidating Sunshine and Rainfall Data & Information about Wind Speeds & Humidity:

  • Washington, D.C., Usa latitude & longitude; 38°54'N 77°3'W.
  • Altitude; 22 m (72 ft).
  • The average temperature in Washington, D.C., Usa is 14.1 °C (57 °F).
  • The range of average monthly temperatures is 23 °C.
  • The warmest average max/ high temperature is 31 °C (88 °F) in July.
  • The coolest average min/ low temperature is -1 °C (30 °F) in January, February & December.
  • Washington, D.C. receives on average 1080 mm (42.5 in) of precipitation annually or 90 mm (3.5 in) each month.
  • On balance there are 121 days annually on which greater than 0.1 mm (0.004 in) of precipitation (rain, sleet, snow or hail) occurrs or 10.1 days on an average month.
  • The month with the driest weather is February when on balance 68 mm (2.7 in) of rain, sleet, hail or snow falls across 9 days.
  • The month with the wettest weather is August when on balance 120 mm (4.7 in) of rain, sleet, hail or snow falls across 10 days.
  • Mean relative humidity for an average year is recorded as 52.7% and on a monthly basis it ranges from 46% in April to 58% in January.
  • There is an average range of hours of sunshine in Washington, D.C. of between 4.6 hours per day in December and 9.8 hours per day in June.
  • On balance there are 2601 sunshine hours annually and approximately 7.1 sunlight hours for each day.
  • On balance there are 81 days annually registering frost in Washington, D.C. and in January there are on average 25 days with frost.

Washington, D.C. Climate Graph (Metric | Imperial units)

Washington, D.C. Climate Graph

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Washington, D.C. Weather Averages

  Average Minimum Temperatures in Washington, D.C., Usa (°C) Average Maximum Temperature in Washington, D.C., Usa (°C) Washington, D.C. Average Temperature (°C) Average Sea Temp (°C) Average Precipitation/ Rainfall (mm) Wet Days (>0.1 mm) Average Sunlight Hours/ Day Relative Humidity (%) Average Wind Speed in Washington, D.C. (Beaufort) Average Number of Days with Frost  
Weather in Washington, D.C. in January -1 7 3 3 84 11 4.9 58 3 25 Average Temperature in Washington, D.C. in January
Weather in Washington, D.C. in February -1 8 3.5 4 68 9 5.6 52 3 20 Average Temperature in Washington, D.C. in February
Weather in Washington, D.C. in March 2 12 7 9 96 12 6.8 49.0 3 10 Average Temperature in Washington, D.C. in March
Weather in Washington, D.C. in April 8 19 14 14 85 10 7.3 46 3 1 Average Temperature in Washington, D.C. in April
Weather in Washington, D.C. in May 13 25 19 20 103 12 8.2 51 3 0 Average Temperature in Washington, D.C. in May
Weather in Washington, D.C. in June 18 29 24 25 88 10 9.8 52 3 0 Average Temperature in Washington, D.C. in June
Weather in Washington, D.C. in July 21 31 26 28 108 11 9.2 53 3 0 Average Temperature in Washington, D.C. in July
Weather in Washington, D.C. in August 20 30 25 28 120 10 8.5 55 3 0 Average Temperature in Washington, D.C. in August
Weather in Washington, D.C. in September 16 26 21 25 100 9 7.8 55 3 0 Average Temperature in Washington, D.C. in September
Weather in Washington, D.C. in October 10 20 15 18 78 8 6.8 54 3 1 Average Temperature in Washington, D.C. in October
Weather in Washington, D.C. in November 4 14 9 12 75 9 6.0 52 3 5 Average Temperature in Washington, D.C. in November
Weather in Washington, D.C. in December -1 8 3.5 5 75 10 4.6 55 3 19 Average Temperature in Washington, D.C. in December

Washington, D.C. Climograph/ Climate Chart (imperial)

Washington, D.C. Temperature Chart

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Washington, D.C. Temperatures in Farenheit

  Average Minimum Temperatures in Washington, D.C., Usa (°F) Average Maximum Temperature in Washington, D.C., Usa (°F) Average Temperature (°F) Average Sea Temp (°F) Average Precipitation/ Rainfall (in) Wet Days (>0.004 in) Average Sunlight Hours/ Day Relative Humidity (%) Average Wind Speed (Beaufort) Average Number of Days with Frost  
Temperatures in Washington, D.C. in January 30 45 37 37 3.3 11 4.9 58 3 25 Climate in Washington, D.C. in January
Temperatures in Washington, D.C. in February 30 46 38 39 2.7 9 5.6 52 3 20 Climate in Washington, D.C. in February
Temperatures in Washington, D.C. in March 36 54 45 48 3.8 12 6.8 49 3 10 Climate in Washington, D.C. in March
Temperatures in Washington, D.C. in April 46 66 56 57 3.3 10 7.3 46 3 1 Climate in Washington, D.C. in April
Temperatures in Washington, D.C. in May 55 77 66 68 4.1 12 8.2 51 3 0 Climate in Washington, D.C. in May
Temperatures in Washington, D.C. in June 64 84 74 77 3.5 10 9.8 52 3 0 Climate in Washington, D.C. in June
Temperatures in Washington, D.C. in July 70 88 79 82 4.3 11 9.2 53 3 0 Climate in Washington, D.C. in July
Temperatures in Washington, D.C. in August 68 86 77 82 4.7 10 8.5 55 3 0 Climate in Washington, D.C. in August
Temperatures in Washington, D.C. in September 61 79 70 77 3.9 9 7.8 55 3 0 Climate in Washington, D.C. in September
Temperatures in Washington, D.C. in October 50 68 59 64 3.1 8 6.8 54 3 1 Climate in Washington, D.C. in October
Temperatures in Washington, D.C. in November 39 57 48 54 3.0 9 6.0 52 3 5 Climate in Washington, D.C. in November
Temperatures in Washington, D.C. in December 30 46 38 41 3.0 10 4.6 55 3 19 Climate in Washington, D.C. in December

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