Niagara Falls
New York, USA
Long-term weather forecast
Long-term weather forecast
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September weather forecast and Climate
Niagara Falls, NY

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The glorious Niagara Falls in New York, USA, viewed from above
The glorious Niagara Falls in New York, USA, viewed from above
September gradually cools down with the beginning of the fall season in Niagara Falls. The average temperatures are in the comfortable range of 51°F (10.6°C) to 72°F (22.2°C) with daily sunshine for about 6 hours.
The leaves start to turn colors by mid-September, and the entire region between Buffalo to Niagara Falls looks panoramic. Rainfall sees a surge in the autumn. September experiences warm days often crossing 77°F (25°C) but they gradually cool down by the end of the month.
Pack in layered clothing as the cold quickly increases by the evening.
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  • The average high temperature in September: 72.1°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (32.1°F).

  • The average low temperature in September: 51°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (15.4°F).

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  • The average rainfall in September: 3.4"

Wettest months (with the highest rainfall) are September and November (3.4").
The driest month (with the lowest rainfall) is February (2.2").

  • The average rainfall days in September: 10.7 days

The month with the highest number of rainy days is January (19.2 days).
The month with the lowest number of rainy days is August (9.8 days).

  • The average snowfall in September: 0"

The month with the highest snowfall is January (23.6").
Months with the lowest snowfall are May, June, July, August and September (0").

  • The average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (15 days).
Months with the lowest number of snowfall days are May, June, July, August and September (0 days).

  • The average daylight in September: 12h

Months with the longest days are May, June and July (Average daylight: 15h).
Months with shortest days are January and December (Average daylight: 9h).

  • The average sunshine in September: 6h

Months with most sunshine are June and July (Average sunshine: 9h).
The month with least sunshine is December (Average sunshine: 2h).

  • The average UV index in September: 6

Months with the highest UV index are June and July (UV index 8).
Months with the lowest UV index are January and December (UV index 1).

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