Weather in Pittsburgh in May 2025
Average weather
Average temperature in Pittsburgh in May
Going from a maximum of +86°F during the day to a minimum of +37°F during the night, the temperature in May averages around +73°F.
The average maximum temperature goes up 67% by the end of the month, compared with the beginning of the month, from +54°F to +86°F.
Is Pittsburgh warm or cold in May?
Pittsburgh is typically mild in May.
Maximum temperatures go up compared to the previous month from +63°F to +72°F. The minimum temperature also goes up from +43°F to +54°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how May is compared to other months in Pittsburgh:
Climate in Pittsburgh in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +63°F | +72°F | +81°F | ||||
| Min. temperature | ||||||
| +18°F | +28°F | +39°F | ||||
| Max. temperature | ||||||
| +90°F | +91°F | +99°F | ||||
| Rainfall | ||||||
| 108 mm | 124 mm | 119 mm | ||||
| Wind | ||||||
| 3 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 66% | 71% | 74% | ||||
| Air pressure | ||||||
| 1014 HPa | 1015 HPa | 1014 HPa | ||||
| Sunny days | ||||||
| 5 | 5 | 5 | ||||
| Cloudy days | ||||||
| 7 | 6 | 7 | ||||
| Rainy days | ||||||
| 17 | 19 | 18 | ||||
| Snowy days | ||||||
| 1 | 0 | 0 | ||||
May weather is still as good as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +63°F to +72°F during the day. Prepare for more rain. Average rainfall goes from 108 mm to 124 mm. Humidity rises from 66% to 71%. Winds are calmer in comparison to April, going down from 3 m/s to 2 m/s on average. The amount of sunny days stay about the same, averaging 5 sunny days during the month.
June brings much the same weather, it remains good.
Wind
The average wind speed is 2 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Pittsburgh is gradually decreasing during May, going from 4 m/s to 2 m/s over the course of the month.
Rain
How was the weather last May in Pittsburgh?
Climate Change Over the Years
The climate in Pittsburgh in May has not changed that much over the last 43 years.
The average temperature was the lowest in 1979 (+59°F) and the highest in 2012 (+66°F). The driest year was 1988 with only 782 mm of rainfall, and the wettest year was 2019 with 2006 mm.
FAQ
Is May a good time to visit Pittsburgh?
Can you sunbathe in Pittsburgh in May?
Is Pittsburgh rainy in May?
Is it sunny in Pittsburgh in May?
Other cities in USA
Monthly weather in Pittsburgh
Source of the data
For this page, we’ve looked at the typical weather in Pittsburgh, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.