September weather forecast
Coeymans, NY

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Weather in September

September, the first month of the autumn in Coeymans, is also an agreeable month, with temperature in the range of an average low of 51.1°F (10.6°C) and an average high of 71.2°F (21.8°C).

Temperature

The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a moderately hot 79.3°F (26.3°C) in August to a pleasant 71.2°F (21.8°C). During September nights, Coeymans records an average temperature of 51.1°F (10.6°C).

Humidity

In Coeymans, the average relative humidity in September is 79%.

Rainfall

In Coeymans, New York, in September, during 11.5 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. Throughout the year, in Coeymans, there are 153.2 rainfall days, and 30" (762mm) of precipitation is accumulated.

Snowfall

In Coeymans, New York, snow does not fall in June through September.

Daylight

The average length of the day in September is 12h and 29min.
On the first day of September, sunrise is at 6:21 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:37 pm EDT.

Sunshine

In September, the average sunshine is 8.9h.

UV index

In Coeymans, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 3 during September morphs into the following directions:
Adopt protective measures - It is advised to guard against sun damage. To protect against the Sun's most potent rays, avoid direct exposure around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Coeymans in September?

September temperatures in Coeymans vary between a high-temperature of 71.2°F (21.8°C) and a low-temperature of 51.1°F (10.6°C). In July, the average heat index (a.k.a. 'real feel', 'feels like'), which represents the influence of relative humidity on air temperature, is calculated to be 86°F (30°C).

What is the average humidity in September in Coeymans?

In September, the average relative humidity in Coeymans is 79%.

How much does it rain in Coeymans in September?

In Coeymans, in September, during 11.5 rainfall days, 2.13" (54mm) of precipitation is typically accumulated.

When it does not snow in Coeymans?

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

Does it snow in Coeymans in September?

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

How many hours of daylight does Coeymans have in September?

In September, the average day length in Coeymans, New York, is 12h and 29min.

When are sunrise and sunset in September in Coeymans?

On the first day of September, sunrise is at 6:21 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 6:37 pm EDT.

How long on average sun shines in September in Coeymans?

The average sunshine duration in September in Coeymans is 8.9h.

What is the UV index intensity in September in Coeymans?

In Coeymans, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
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
Coeymans, NY

Average temperature in September - Coeymans, NY
  • Average high temperature in September: 71.2°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 (29.1°F).

  • Average low temperature in September: 51.1°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 (16.9°F).

Average pressure in September
Coeymans, NY

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

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
Coeymans, NY

Average wind speed in September - Coeymans, NY
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Coeymans, NY

Average humidity in September - Coeymans, NY
  • Average humidity in September: 79%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (75%).

Average rainfall in September
Coeymans, NY

Average rainfall in September - Coeymans, NY
  • Average rainfall in September: 2.13"

The wettest month (with the highest rainfall) is July (3.43").
The driest month (with the least rainfall) is January (1.73").

Average rainfall days in September
Coeymans, NY

Average rainfall days in September - Coeymans, NY
  • Average rainfall days in September: 11.5 days

The months with the highest number of rainy days are May and July (17.1 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in September
Coeymans, NY

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

The month with the highest snowfall is February (5.79").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Coeymans, NY

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

The months with the highest number of snowfall days are January and February (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Coeymans, 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 6min).

  • Average sunshine in September: 8h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

Average sunshine days in September
Coeymans, NY

Average sunshine days in September - Coeymans, NY
  • Average sunshine days in September: 16.1 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (11.6 days).

Average UV index in September
Coeymans, NY

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

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in September
Coeymans, NY

Average cloud cover in September - Coeymans, NY
  • Average cloud cover in September: 36

The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in September
Coeymans, NY

Average visibility in September - Coeymans, NY
  • Average visibility in September: 5mi

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

Coeymans, New York, USA

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