September weather forecast and climate
Plattsburgh, NY

A sunny and dry day in the townscape of Plattsburgh, New York, with a view of the iconic tower next to the river, dry trees, and a hilly landscape view
A sunny and dry day in the townscape of Plattsburgh, New York, with a view of the iconic tower next to the river, dry trees, and a hilly landscape view

Weather in September

September, the first month of the autumn, in Plattsburgh, is still a pleasant month, with average temperature fluctuating between 50.5°F (10.3°C) and 69.6°F (20.9°C).

Temperature

In September, the average high-temperature slightly decreases, from a moderately hot 76.8°F (24.9°C) in August, to an agreeable 69.6°F (20.9°C). The average low-temperature, in September, is 50.5°F (10.3°C).

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Plattsburgh, New York, during September, the rain falls for 12.5 days and regularly aggregates up to 1.77" (45mm) of precipitation. Throughout the year, in Plattsburgh, New York, there are 162.6 rainfall days, and 27.6" (701mm) of precipitation is accumulated.

Snowfall

In Plattsburgh snow does not fall in June through September.

Daylight

In Plattsburgh, the average length of the day is 12.5h.

Sunshine

In September, the average sunshine in Plattsburgh is 9.2h.

UV index

The average daily maximum UV index in Plattsburgh is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 3 transform into the following instructions:
Take precautions - Protection against sun damage is advised. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
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FAQ

What is the temperature in September in Plattsburgh?

In Plattsburgh, New York, in September, the average high-temperature is 69.6°F (20.9°C), and the average low-temperature is 50.5°F (10.3°C).

What is the average humidity in September in Plattsburgh?

In Plattsburgh, the average relative humidity in September is 77%.

How much does it rain in Plattsburgh in September?

In Plattsburgh, New York, in September, it is raining for 12.5 days, with typically 1.77" (45mm) of accumulated precipitation.

Does it snow in Plattsburgh in September?

In Plattsburgh, New York, in September, it doesn't snow. In October, it regularly snows.

When it does not snow in Plattsburgh?

In Plattsburgh snow does not fall in June through September.

What is the average length of the day in September in Plattsburgh?

In September, the average length of the day in Plattsburgh is 12.5h.

How long on average sun shines in September in Plattsburgh?

In Plattsburgh, the average sunshine in September is 9.2h.

What is the UV index reading in September in Plattsburgh?

The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health threat from the exposure to the Sun's UV rays.

Average temperature in September
Plattsburgh, NY

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).

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Average pressure in September
Plattsburgh, NY

Average pressure in September - Plattsburgh, NY
  • Average pressure in September: 30.04"

The month with the highest atmospheric pressure is November (30.07").
The month with the lowest atmospheric pressure is June (29.91").

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Average wind speed in September
Plattsburgh, NY

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).

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Average humidity in September
Plattsburgh, NY

Average humidity in September - Plattsburgh, NY
  • Average humidity in September: 77%

Months with the highest relative humidity are January and February (86%).
Months with the lowest relative humidity are April and May (75%).

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Average rainfall in September
Plattsburgh, NY

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").

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Average rainfall days in September
Plattsburgh, NY

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).

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Average snowfall in September
Plattsburgh, NY

Average snowfall in September - Plattsburgh, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (10").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Plattsburgh, NY

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).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Plattsburgh, NY

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

The month with the longest days is June (Average daylight: 15.5h).
The month with the shortest days is December (Average daylight: 8.9h).

  • Average sunshine in September: 9.2h

The month with the most sunshine is August (Average sunshine: 10.6h).
The month with the least sunshine is February (Average sunshine: 3.6h).

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Average sunshine days in September
Plattsburgh, NY

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).

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Average UV index in September
Plattsburgh, NY

Average UV index in September - Plattsburgh, NY
  • Average UV index in September: 3

Months with the highest UV index are May, June, July and August (UV index 5).
Months with the lowest UV index are January and December (UV index 1).

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Average cloud cover in September
Plattsburgh, NY

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).
Months with the least cloud cover are July, August and September (Cloud cover 31).

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Average visibility in September
Plattsburgh, NY

Average visibility in September - Plattsburgh, NY
  • Average visibility in September: 6mi

Months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
Months with the lowest visibility are January, February, March and December (5mi).

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