September weather forecast and climate
Niagara Falls, NY

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 6 hours of daily sunshine.
The leaves start to turn colors by mid-September, and the entire region between Buffalo to Niagara Falls looks panoramic. Rainfall sees a surge during 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.

What is the temperature in September in Niagara Falls?

In Niagara Falls, in September, the average high-temperature is 72.1°F (22.3°C), and the average low-temperature is 51.1°F (10.6°C).

How much does it rain in Niagara Falls in September?

In Niagara Falls, in September, it is raining for 10.7 days, with typically 3.4" (85.1mm) of accumulated precipitation.

Does it snow in Niagara Falls in September?

In Niagara Falls, in September, it doesn't snow. In October, it regularly snows.
Average temperature in September - Niagara Falls, NY
  • 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).

  • 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).

Average rainfall in September - Niagara Falls, NY
  • 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").

Average rainfall days in September - Niagara Falls, NY
  • 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).

Average snowfall in September - Niagara Falls, NY
  • 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").

Average snowfall days in September - Niagara Falls, NY
  • 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).

Average daylight in September / Average sunshine in September - Niagara Falls, NY
  • Average daylight in September: 12.5h

The month with the longest days is June (Average daylight: 15.3h).
The month with shortest days is December (Average daylight: 9.1h).

  • 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).

Average UV index in September - Niagara Falls, NY
  • 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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