Pittsburgh weather in September (Pennsylvania, United States of America)

How is the weather in Pittsburgh in September? Here's what the weather might have in store during this month.

In Pittsburgh the weather in September is generally perfect, with high temperatures and moderate rainfall. Anticipate daytime temperatures around 24°C, while night temperatures can drop to 13°C.

Pittsburgh in September usually receives moderate rainfall, averaging around 78 mm for the month. Typically around 11 days of rainfall is expected.

The days are predominantly sunny, with an estimated total of around 197 hours of sunshine. This amount of sunlight does not only brightens the days but also contributes to a cheerful ambiance in the area during this month.

So this is a great month to visit if you prefer dry days with pleasant temperatures. May, July, August and September typically offer the most optimal weather. In contrast, January, February, March and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Pittsburgh climate page with graphs.

 

Pittsburgh, monthly averages in September

Min Temperature 13°C  

Max Temperature 24°C  

Chance of Rain 35%  

Precipitation 78 mm  

Rainy days 11 days  

Humidity 72%  

Windspeed 11 km/h  

Sunshine 197 hours  

Percentage Sunshine 53%  

Where to go in the United States of America in September

Find out more about the weather in the United States of America in September and which places have the best weather conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in Pittsburgh in September?

For visitors traveling to Pittsburgh, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in September.

Swimming

7/10

Cycling

9/10

Walking

9/10

Camping

8/10

Outdoor sports

9/10

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Pittsburgh.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.