Weather in Pittsburgh
What's the weather like in Pittsburgh?
Pittsburgh has a wide swing between hot summers and cold winters and moderate rainfall spread across the year. Average daytime highs range from 3°C (37°F) in January to 28°C (83°F) in July, with overnight lows around -6°C (21°F) and 19°C (65°F) respectively.
For comfortable sightseeing temperatures (18–26°C daytime highs), the best months to visit Pittsburgh are May through June, and August through September.
Quick facts
- Country
- 🇺🇸 United States
- Region
- North America
- Time zone
- America/New_York
- Coordinates
- 40.441, -79.996
Monthly climate
Long-run averages for each month of the year.
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 3°C / 37°F | -6°C / 21°F | 87 mm | 19 | — |
| February | 6°C / 42°F | -5°C / 24°F | 111 mm | 17 | — |
| March | 10°C / 50°F | -1°C / 31°F | 100 mm | 19 | — |
| April | 16°C / 62°F | 5°C / 41°F | 122 mm | 20 | — |
| May | 22°C / 71°F | 12°C / 53°F | 124 mm | 19 | — |
| June | 26°C / 79°F | 16°C / 61°F | 160 mm | 21 | — |
| July | 28°C / 83°F | 19°C / 65°F | 113 mm | 23 | — |
| August | 27°C / 81°F | 18°C / 64°F | 111 mm | 21 | — |
| September | 25°C / 76°F | 15°C / 58°F | 94 mm | 16 | — |
| October | 18°C / 64°F | 9°C / 48°F | 110 mm | 17 | — |
| November | 10°C / 51°F | 2°C / 35°F | 73 mm | 14 | — |
| December | 6°C / 44°F | -1°C / 30°F | 94 mm | 16 | — |
Pittsburgh by month
Detailed weather for any specific month:
Seasonal patterns to know
Atlantic hurricane season runs June–November (peak August–October). Tropical storms and hurricanes are possible — peak risk is August–October.
Cities with a similar climate to Pittsburgh
Frequently asked questions
When is the best time to visit Pittsburgh?
The most comfortable months in Pittsburgh are usually May, September, October, when average highs sit near 18–26°C (64–79°F) with relatively little rain. See the full month-by-month breakdown for the exact figures.
What is the hottest month in Pittsburgh?
July is typically the hottest month in Pittsburgh, averaging a high of 28°C (83°F).
What is the coldest month in Pittsburgh?
January is usually the coldest, with average lows around -6°C (21°F).
Does it snow in Pittsburgh?
Snow is rare in Pittsburgh; the climate data shows essentially no snowfall across the year.
Live forecast, sunrise/sunset, and more.