September weather forecast
Windsor, NY

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Weather in September

The first month of the autumn, September, is also an agreeable month in Windsor, New York, with an average temperature fluctuating between 49.5°F (9.7°C) and 70°F (21.1°C).

Temperature

The arrival of September corresponds with a minor reduction in the average high-temperature, down from August's moderately hot 76.6°F (24.8°C) to a pleasant 70°F (21.1°C). During the September nights, an average temperature of 49.5°F (9.7°C) is observed.

Humidity

In September, the average relative humidity in Windsor is 81%.

Rainfall

September is the month with the least rainfall. Rain falls for 8.1 days and accumulates 0.55" (14mm) of precipitation.

Snowfall

In Windsor, snow does not fall in June through September.

Daylight

The average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:28 am and sunset at 7:35 pm. On the last day of September, sunrise is at 6:59 am and sunset at 6:45 pm EDT.

Sunshine

In September, the average sunshine is 8.3h.

UV index

In Windsor, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 3 in September translates into these instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. It's recommended to limit sun exposure when its radiation is at its peak during midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Aug 21, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures?

In Windsor, in September, the average high-temperature is 70°F (21.1°C), and the average low-temperature is 49.5°F (9.7°C).

What is the average humidity in September?

In September, the average relative humidity is 81%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 8.1 days and accumulates 0.55" (14mm) of precipitation.

How much does it rain in September?

In Windsor, during September, the rain falls for 8.1 days and regularly aggregates up to 0.55" (14mm) of precipitation.

When it does not snow?

June through September are months without snowfall.

Does it snow in Windsor in September?

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

What is the average length of the day in September?

In Windsor, the average day length in September is 12h and 28min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:28 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:45 pm EDT.

How many hours of sunshine does Windsor have in September?

The average sunshine duration in September is 8.3h.

What is the UV index intensity in September?

The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Windsor, NY

Average temperature in September - Windsor, NY
  • Average high temperature in September: 70°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in September: 49.5°F

The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (16°F).

Average pressure in September
Windsor, NY

Average pressure in September - Windsor, NY
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Windsor, NY

Average wind speed in September - Windsor, NY
  • Average wind speed in September: 6mph

The windiest months (with the highest average wind speed) are January and February (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in September
Windsor, NY

Average humidity in September - Windsor, NY
  • Average humidity in September: 81%

The months with the highest relative humidity are February and December (87%).
The months with the lowest relative humidity are June and July (79%).

Average rainfall in September
Windsor, NY

Average rainfall in September - Windsor, NY
  • Average rainfall in September: 0.55"

The wettest month (with the highest rainfall) is August (1.02").
The driest month (with the least rainfall) is September (0.55").

Average rainfall days in September
Windsor, NY

Average rainfall days in September - Windsor, NY
  • Average rainfall days in September: 8.1 days

The months with the highest number of rainy days are May and July (12.3 days).
The month with the least rainy days is January (4.4 days).

Average snowfall in September
Windsor, NY

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

The month with the highest snowfall is January (1.61").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Windsor, NY

Average snowfall days in September - Windsor, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Windsor, NY
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 8h and 2min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The months with the least sunshine are February and December (Average sunshine: 2h and 42min).

Average sunshine days in September
Windsor, NY

Average sunshine days in September - Windsor, NY
  • Average sunshine days in September: 19.6 days

The month with the most sunshine days is January (20.1 days).
The month with the least sunshine days is April (14.8 days).

Average UV index in September
Windsor, NY

Average UV index in September - Windsor, 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, November and December (UV index 1).

Average cloud cover in September
Windsor, NY

Average cloud cover in September - Windsor, NY
  • Average cloud cover in September: 44

The month with the most cloud cover is February (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 41).

Average visibility in September
Windsor, NY

Average visibility in September - Windsor, NY
  • Average visibility in September: 4mi

The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (5mi).
The months with the lowest visibility are August and September (4mi).

Windsor, New York, USA

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