Denver · May
Run in the morning.
Cool month: average high 68°F, low 42°F. Expect 16 rain days — plan around the radar. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
Avg high / low
68° / 42°F
Humidity
61%
Rain days
16/mo
Wind
12 mph
What May feels like in Denver
Sunrise
05:45
Mid-month average
Sunset
20:08
Mid-month average
Time-of-day breakdown
Morning
Steady cool air, low wind, and good light. The standard runner window in most months.
Midday
Mild but UV and traffic peak. Workable if you don't mind shifting your pace.
Evening
Warm and runnable. Crowded routes but the air's typically calm.
What to wear running in Denver in May
The kit for May in Denver: a long-sleeve or light jacket for the first mile, a water-resistant cap or jacket on standby.
May vs the surrounding months
vs April
+8° avg high
+4 rain days
Denver in April →
May
68°F avg high
16 rain days
Best: morning
vs June
-14° avg high
+4 rain days
Denver in June →
Frequently Asked Questions
What is the best time of day to run in Denver in May?+
Morning. Cool, runnable conditions throughout — morning still has the steadiest air and lightest wind.
What's the average temperature in Denver in May?+
Average high 68°F, average low 42°F.
How does May compare to surrounding months in Denver?+
Compared to April (avg high 61°F), May is warmer. Compared to June (avg high 82°F), May is cooler.
Does it rain often in Denver in May?+
Expect about 16 measurable rain days in May, on average.