Pittsburgh
May
Weather in Pittsburgh for May 2025
Your guide to Pittsburgh weather in May - trends and predictions
In general, the average temperature in Pittsburgh at the beginning of May is 17.9 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 24.3 °F by the end of May.
Pittsburgh sees moderate rainfall in May, averaging 9 rainy days.
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22
Dry days
9
Rainy days
0
Snow days
24°/8°
Temperatures
13 km/h
Avg max wind
73 %
Avg humidity
Pittsburgh in May average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  16° | 2 15° | 3  18° | 4 15° | |||
| 5  19° | 6  21° | 7 21° | 8 25° | 9 18° | 10  17° | 11 19° |
| 12 20° | 13 21° | 14  20° | 15 22° | 16 21° | 17 20° | 18 23° |
| 19  25° | 20 23° | 21 26° | 22 26° | 23 23° | 24 25° | 25 23° |
| 26 26° | 27 24° | 28 24° | 29 22° | 30 25° | 31 26° |
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Temperatures trend during May in Pittsburgh
See the weather trend as well as the moving average line
May weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| May 1 | Moderate or heavy rain shower | 16° /6° | 4.5 mm | 4 | |
| May 2 | Moderate rain at times | 15° /6° | 5 mm | 4 | |
| May 3 | Heavy rain at times | 18° /7° | 6.1 mm | 4 | |
| May 4 | Moderate or heavy rain shower | 15° /9° | 9.5 mm | 4 | |
| May 5 | Overcast | 19° /7° | 0.6 mm | 5 | |
| May 6 | Sunny | 21° /9° | 0.1 mm | 6 | |
| May 7 | Moderate or heavy rain shower | 21° /12° | 5.7 mm | 5 | |
| May 8 | Overcast | 25° /15° | 1.9 mm | 6 | |
| May 9 | Heavy rain at times | 18° /10° | 7.7 mm | 4 | |
| May 10 | Partly cloudy | 17° /7° | 0.5 mm | 5 | |
| May 11 | Partly cloudy | 19° /7° | 2.6 mm | 5 | |
| May 12 | Overcast | 20° /8° | 2.6 mm | 5 | |
| May 13 | Moderate or heavy rain shower | 21° /10° | 5.4 mm | 5 | |
| May 14 | Cloudy | 20° /11° | 3.6 mm | 5 | |
| May 15 | Sunny | 22° /11° | 1.9 mm | 6 | |
| May 16 | Moderate or heavy rain shower | 21° /10° | 1.8 mm | 5 | |
| May 17 | Overcast | 20° /10° | 5.5 mm | 5 | |
| May 18 | Sunny | 23° /9° | 2.3 mm | 6 | |
| May 19 | Patchy rain possible | 25° /11° | 1.2 mm | 6 | |
| May 20 | Moderate or heavy rain shower | 23° /12° | 8.4 mm | 6 | |
| May 21 | Overcast | 26° /11° | 0 mm | 6 | |
| May 22 | Sunny | 26° /12° | 0.9 mm | 7 | |
| May 23 | Overcast | 23° /14° | 7.8 mm | 6 | |
| May 24 | Cloudy | 25° /13° | 0.2 mm | 6 | |
| May 25 | Partly cloudy | 23° /10° | 6.1 mm | 6 | |
| May 26 | Sunny | 26° /9° | 10.5 mm | 6 | |
| May 27 | Sunny | 24° /12° | 3.4 mm | 6 | |
| May 28 | Sunny | 24° /11° | 2.3 mm | 6 | |
| May 29 | Patchy rain possible | 22° /10° | 8.4 mm | 5 | |
| May 30 | Partly cloudy | 25° /10° | 0 mm | 6 | |
| May 31 | Sunny | 26° /8° | 0 mm | 7 | |
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Important Notice
Our weather forecast for Pittsburgh in May is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Pittsburgh forecast closer to your planned date for the most up-to-date weather information.
Pittsburgh in May - FAQ
What are the expected maximum and minimum temperatures in Pittsburgh during May?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Pittsburgh during May?
Significant rainfall exceeding 172.1 mm is expected in Pittsburgh during May, occurring over more than 9 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Pittsburgh during May?
The average wind speed in Pittsburgh during May is 13 km/h, suggesting breezy to windy conditions, depending on your activities.
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