Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September brings a slight decrease in temperature, down from a moderately hot 76.8°F (24.9°C) in August to a pleasant 69.6°F (20.9°C). During September, Plattsburgh's temperature averages to a cool 50.5°F (10.3°C) at night.Humidity
In September, the average relative humidity is 77%.Rainfall
In Plattsburgh, in September, it is raining for 12.5 days, with typically 1.77" (45mm) of accumulated precipitation. Throughout the year, in Plattsburgh, there are 162.6 rainfall days, and 27.6" (701mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Plattsburgh is 12h and 31min.On the first day of September in Plattsburgh, New York, sunrise is at 6:17 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:35 pm EDT.
Sunshine
In September, the average sunshine is 9.2h.UV index
In Plattsburgh, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 3 during September translates into these guidelines:
Make use of precautions - Shielding skin and eyes from injury is a requirement. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Plattsburgh in September?
What is the average humidity in September in Plattsburgh?
How much does it rain in Plattsburgh in September?
When it does not snow in Plattsburgh?
Does it snow in Plattsburgh in September?
How many hours of daylight does Plattsburgh have in September?
When is the sunrise / sunset in September in Plattsburgh?
How many hours of sunshine does Plattsburgh have in September?
What is the UV index reading in September in Plattsburgh?
Average temperature in September
Plattsburgh, NY
- Average high temperature in September: 69.6°F
The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in September: 50.5°F
The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (12.4°F).
Average pressure in September
Plattsburgh, NY
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Plattsburgh, NY
- Average wind speed in September: 5.9mph
The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
Plattsburgh, NY
- Average humidity in September: 77%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in September
Plattsburgh, NY
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is February (1.73").
Average rainfall days in September
Plattsburgh, NY
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in September
Plattsburgh, NY
- Average snowfall in September: 0"
The month with the highest snowfall is February (10").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Plattsburgh, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (19.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Plattsburgh, NY
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in September
Plattsburgh, NY
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (8.6 days).
Average UV index in September
Plattsburgh, NY
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Plattsburgh, NY
- Average cloud cover in September: 31
The month with the most cloud cover is February (Cloud cover 64).
The months with the least cloud cover are July, August and September (Cloud cover 31).
Average visibility in September
Plattsburgh, NY
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Plattsburgh, New York, USA
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