Pittsburgh weather in September
September in Pittsburgh averages 75°F by day and 55°F at night, with 3.3 inches of precipitation. It is the 4th-warmest and 6th-wettest month of the year here.
- Average high
- 75°F-7° vs August
- Average low
- 55°F0 nights below freezing
- Precipitation
- 3.3 in6 days with 0.1 in. or more
- Snow
- 0.0 in1 days at 90°F+
Is September a good time to visit Pittsburgh?
Yes. September is one of the most comfortable months in Pittsburgh by our rule (highs of 62 to 86°F, lows of 42°F or more and under 4.5 inches of precipitation). The most comfortable months overall are May to October.
Get outside in Pittsburgh in September
September is made for being outside. Try Allegheny Commons, Highland Park, Frick Park. All things to do in Pittsburgh.
On September 15 the sun rises at 7:01 am and sets at 7:28 pm, giving 12h 27m of daylight. Daylight all year.
What to pack for Pittsburgh in September
- T-shirts and a light jacket or sweater
Based on 30-year averages, not a forecast. Check the forecast a few days before you go.
September nearby
| City | Distance | High | Low | Precip. |
|---|---|---|---|---|
| Pittsburgh | 75°F | 55°F | 3.3 in | |
| Akron, OH | 90 mi | 76°F | 55°F | 3.5 in |
| Parma, OH | 111 mi | 76°F | 57°F | 3.9 in |
| Cleveland, OH | 113 mi | 74°F | 60°F | 2.9 in |
| Erie, PA | 117 mi | 74°F | 57°F | 4.3 in |
| Frederick, MD | 155 mi | 80°F | 59°F | 5.8 in |
| Columbus, OH | 161 mi | 78°F | 57°F | 3.1 in |
Frequently asked questions
What is the weather like in Pittsburgh in September?
In September, Pittsburgh averages a high of 75°F and a low of 55°F, with 3.3 inches of precipitation (NOAA 1991-2020 normals).
Is September a good time to visit Pittsburgh?
Yes. September is one of Pittsburgh's most comfortable months by our rule: highs between 62°F and 86°F, lows of 42°F or more and modest rain.
Does it snow in Pittsburgh in September?
Rarely. The September snowfall normal is under half an inch.
Before and after: Pittsburgh in August and Pittsburgh in October. All twelve months: Pittsburgh weather by month.
NOAA NCEI 1991-2020 climate normals, station Pittsburgh Intl. Airport, PA, 10.6 miles from the city center.