New York, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and Climate
Plattsburgh, NY

  • The average high temperature in September: 70°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (27°F).

  • The average low temperature in September: 48°F

The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (7°F).

  • The average rainfall in September: 2.8"

The wettest month (with the highest rainfall) is August (3.6").
The driest month (with the lowest rainfall) is February (1.6").

  • The average rainfall days in September: 12 days

The month with the highest number of rainy days is November (14 days).
The month with the lowest number of rainy days is February (10 days).

  • The average daylight in September: 12h

The month with the longest days is June (Average daylight: 16h).
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).
Months with least sunshine are November and December (Average sunshine: 3).

  • The average UV index in September: 5

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