Pittsburgh · May
Run in the morning.
Comfortable average high of 71°F, dipping to 52°F at night. Expect 18 rain days — plan around the radar. Humidity rises with the sun — morning runs catch the driest, coolest window.
Avg high / low
71° / 52°F
Humidity
73%
Rain days
18/mo
Wind
10 mph
What May feels like in Pittsburgh
Sunrise
06:03
Mid-month average
Sunset
20:30
Mid-month average
Time-of-day breakdown
Morning
Coolest, driest air of the day. The window before sunrise is the most reliable comfortable hour.
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 Pittsburgh in May
The kit for May in Pittsburgh: shorts and a short-sleeve are the standard kit, a water-resistant cap or jacket on standby.
May vs the surrounding months
vs April
+10° avg high
0 rain days
Pittsburgh in April →
May
71°F avg high
18 rain days
Best: morning
vs June
-8° avg high
-1 rain days
Pittsburgh in June →
Frequently Asked Questions
What is the best time of day to run in Pittsburgh in May?+
Morning. Humidity rises with the sun — morning runs catch the driest, coolest window.
What's the average temperature in Pittsburgh in May?+
Average high 71°F, average low 52°F.
How does May compare to surrounding months in Pittsburgh?+
Compared to April (avg high 61°F), May is warmer. Compared to June (avg high 79°F), May is cooler.
Does it rain often in Pittsburgh in May?+
Expect about 18 measurable rain days in May, on average.