The weather in September in Buffalo

It's warm in September in Buffalo with an average temperature of 24°C. Temperatures this month range from a low of 17°C to a high of 27°C. At night, you can expect temperatures between 11°C and 19°C.

Looking for sun? September isn’t a good month to be in Buffalo. The temperature is nice, but there’s too much chance of rain.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in September for Buffalo, New York. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 33°C in 2017, Buffalo reached the highest temperature in September over the past 10 years. The lowest daytime temperature in this month was 13°C in 2015. The extreme nighttime temperatures ranged from a lowest recorded value of 4°C to a highest value of 25°C.

Rainfall amount

In September, there is an average of 212 mm of precipitation, spread over 20 days. The wind speed is around 4 Bft, mostly coming from the South.

Daily weather in September for Buffalo

Click on any day in September to get detailed info about the usual weather on that day in Buffalo. Check out the historical temperatures and precipitation over the past 10 years on this day.

September weather comparison

  Buffalo New York
Average temperature 24°C 27°C
Max. temperature 27°C 31°C
Min. temperature 11°C -5°C
Total precipitation 212 mm 57 mm
Rainy days 20 days 9 days

Start of September

The month of September starts in Buffalo with warm temps, averaging around 26°C during the day and nights around 18°C.

Mid September

By mid-September, daytime temps drop to around 24°C, with nights around 16°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.

End of September

By the end of September, the average daytime temperature in Buffalo is around 22°C, while nighttime temps are about 13°C. There’s a significant chance of many days with precipitation.

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UV index

The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.

Check out the climate of Buffalo for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in September in Buffalo, New York. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in September in Buffalo

Temperature in September in Buffalo over the years

Precipitation charts

These charts show the average amount of precipitation in September in Buffalo, New York. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in September in Buffalo

Total precipitation in September in Buffalo over the years

Daily UV index in September in Buffalo

This chart shows the average daily UV index in September in Buffalo, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Weather experiences in September in Buffalo

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Average weather in Buffalo by month

Click on a month below to see detailed weather info for Buffalo. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.