Washington DC - Recent May Temperatures and Rainfall





The numbers here describe what the May weather in Washington DC was like for every year since 2010. A series of tables gives May data by year for temperature and precipitation.

They begin with average maximum and minimum temperatures in degrees Fahrenheit and Celsius. That's followed by how many hot days occurred each May. Then there's information on how much rain actually landed this month during recent years, as well as how often Washington had wet weather.

The climate data come from weather measurements made at the Reagan National Airport near downtown Washington.

Temperature Weather iconTemperature

May temperature averages by year in Washington
High °F Low °F Year High °C Low °C
81 63 2018 27 17
74 57 2017 23 14
71 57 2016 22 14
83 64 2015 28 18
78 59 2014 26 15
76 58 2013 24 14
80 63 2012 27 17
77 59 2011 25 15
78 60 2010 26 16
Number of days in May when the temperature in Washington rose to at least 70 or 90 degrees Fahrenheit
Year 70 °F
21 °C
90 °F
32 °C
2018 29 4
2017 19 2
2016 16 0
2015 29 7
2014 25 2
2013 19 3
2012 31 2
2011 26 3
2010 24 3

Rainy Weather iconRain

This table gives the total precipitation that fell on Washington during May in each year from 2010. The number of days with precipitation counts the days when rainfall amounted to 0.01 inches (0.3 millimeters) or more.

Total rainfall for May in Washington
Days Year Inches Milli­metres
12 2018 8.7 222
15 2017 5.6 141
19 2016 5.7 144
6 2015 1.9 49
11 2014 5.0 126
11 2013 2.8 72
13 2012 3.3 84
11 2011 1.7 43
9 2010 2.4 61
Reference

Jay Lawrimore. 2016. Global Summary of the Month, Version 1.0. NOAA National Centers for Environmental Information. 

Washington DC - Recent Years
Washington DC - Extremes
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