Frederick weather in September (Maryland, United States of America)

What does the weather outlook for Frederick look like in September? Curious if the timing is right for your trip? Our page offers an in-depth look at the monthly weather conditions.

Temperatures

In September, Frederick usually has high temperatures and high rainfall. Daytime temperatures generally settle around 27°C, while nighttime can see a dip to about 14°C.

Precipitation

Frederick in September usually receives high rainfall, averaging around 113 mm for the month. Historically, approximately 10 days this month are expected to have rain.

Average sunshine

There are approximately 225 hours of sunshine this month, meaning plenty of sunny days and a vibrant atmosphere.

If you're a fan of comfortable temperatures and drier conditions, September is a great time to visit. April, May, June, July, August, September and October generally stand out with the best circumstances. While January, February and December tend to showcase less optimal conditions.

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

 

Frederick, monthly averages in September

Min Temperature 14°C  

Max Temperature 27°C  

Chance of Rain 34%  

Precipitation 113 mm  

Rainy days 10 days  

Humidity 68% *  

Sunshine 225 hours *  

Percentage Sunshine 60% *  

* Data from: Washington DC, the United States of America (70 KM, 43 Miles).

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?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case.

What To Do

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

Swimming

9/10

Cycling

7/10

Walking

7/10

Camping

6/10

Outdoor sports

7/10

Interested in more climate information?

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

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.