Washington D.C. May Weather

Averages and records for weather in Washington D.C. in the month of May.
Typical Washington D.C. May Weather
1991–2020
Average daily high 76.0 °F
Average daily low 57.6 °F
Average monthly precipitation 3.9 inches
Average monthly snow none
Daily chance of precipitation 37.3%
Daily chance of snow 0%
Washington D.C. May Weather Records
1851–2024
Highest temperature 99 °F May 31, 1991
Lowest temperature 32 °F May 5, 1851
Highest daily low 78 °F May 31, 1991
Lowest daily high 46 °F May 5, 1917
Hottest average high temperature 83.1 °F 1991
Coldest average high temperature 68.3 °F 2003
Most daily precipitation 3.2 inches May 5, 1953
Most monthly precipitation 10.7 inches 1953
Most daily snow none -
Most monthly snow none -
Note: Daily averages are a moving average which includes 14 days before and after
Day Average (°F) Record (°F)
High Low High Low
May 1 71.8 52.7 96 34
May 2 72.0 53.0 91 35
May 3 72.2 53.4 91 36
May 4 72.3 53.7 93 39
May 5 72.5 53.9 94 32
May 6 72.7 54.1 93 36
May 7 72.9 54.3 95 38
May 8 73.3 54.6 92 39
May 9 73.6 54.9 96 34
May 10 73.9 55.2 95 35
May 11 74.2 55.6 94 33
May 12 74.6 56.0 93 37
May 13 74.9 56.4 95 39
May 14 75.2 56.8 93 41
May 15 75.6 57.2 94 40
May 16 75.8 57.5 93 38
May 17 76.1 57.9 92 40
May 18 76.4 58.2 96 40
May 19 76.7 58.5 96 43
May 20 77.0 58.7 96 42
May 21 77.2 59.0 95 41
May 22 77.5 59.3 96 39
May 23 77.7 59.6 97 45
May 24 78.1 59.9 92 41
May 25 78.3 60.2 94 42
May 26 78.7 60.5 96 42
May 27 79.1 60.9 95 42
May 28 79.5 61.3 97 42
May 29 79.9 61.8 97 41
May 30 80.1 62.1 98 44
May 31 80.3 62.4 99 44
Weather Station Details
Years Station Coordinates
1945–2024 Washington Reagan Airport location
1851–1945 Washington D.C. location