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

Can you expect sunny skies in Williamsport in September? Check out this detailed guide to the month’s weather conditions.

Temperatures

September in Williamsport generally includes high temperatures and high rainfall. In the daytime, temperatures tend to hover near 24°C, cooling down at night to around 12°C.

Precipitation

Williamsport in September usually receives high rainfall, averaging around 105 mm for the month. Historically, approximately 11 days this month are expected to have rain.

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

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

 

Williamsport, monthly averages in September

Min Temperature 12°C  

Max Temperature 24°C  

Chance of Rain 35%  

Precipitation 105 mm  

Rainy days 11 days  

Where to go in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel 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 this month?

For visitors traveling to Williamsport, 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.

Cycling

9/10

Walking

9/10

Camping

6/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Williamsport.

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 travel conditions. Find out where to go with our weather planner.