Typical Run Score
79
Good
Washington, D.C. · May
Running in Washington, D.C. in May
Typical May running conditions in Washington, D.C. — and a live Run Score so you can see how today compares with the norm.
Avg temperature
65°F
Warm
Avg dew point
54°F
Comfortable
Best window
6–8 AM
Local time
Washington, D.C. · today vs the May normTemperature · dew point · wind · timing
How May compares in Washington, D.C.
May ranks 7th of 12 months for running in Washington, D.C., with a typical daytime Run Score of 79 (Good). For reference, the best month is November (score 91) and the hardest is July (score 53). The kindest window in May is typically 6–8 AM. Precipitation falls in roughly 18% of hours this month. Use the live tool below to see how today actually compares with the May norm.
Running weather in nearby cities
Same engine, different climate. Check the best time to run in these cities too.
Running in Washington, D.C. in May: FAQ
Is it good to run in Washington, D.C. in May?
Generally yes, with sensible timing. The typical daytime Run Score is 79 (Good), with temperatures around 65°F (18°C) and comfortable dew points. The best window is usually 6–8 AM.
How hot is it for running in Washington, D.C. in May?
Typical temperatures average 65°F (18°C) (Warm) with dew points near 54°F. Dew point — not the thermometer — usually decides how hard the run feels.
What is a good Run Score?
Scores run 0–100. 97+ is Perfect, 80–96 is Great — conditions are actively working in your favour. 65–79 (Good) is solid. 45–64 (Mixed) means at least one factor — usually heat or dew point — is taxing you. Below 45 (Poor), expect a noticeably harder effort or hold back for safety.
Why does dew point matter more than temperature?
Your body cools by evaporating sweat. When the dew point climbs above roughly 60°F, the air is too saturated for sweat to evaporate efficiently, so heat builds up even if the thermometer looks reasonable. That's why a 70°F muggy morning can feel harder than a dry 80°F afternoon.
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