September weather forecast
North Great River, NY

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Weather in September

September, the first month of the autumn in North Great River, is still a pleasant month, with an average temperature varying between 65.3°F (18.5°C) and 72.1°F (22.3°C).

Temperature

North Great River's transition into September involves a gentle shift in temperature, receding from a warm 78.4°F (25.8°C) in August to an agreeable 72.1°F (22.3°C). A steady low-temperature average of 65.3°F (18.5°C) is logged in North Great River during September, reflecting a modest dip from daytime readings.

Humidity

In September, the average relative humidity is 74%.

Rainfall

In North Great River, in September, during 13.5 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, there are 153.2 rainfall days, and 34.45" (875mm) of precipitation is accumulated.

Snowfall

In North Great River, snow does not fall in April through September.

Daylight

In September, the average length of the day in North Great River is 12h and 27min.
On the first day of the month, sunrise is at 6:20 am and sunset at 7:24 pm. On the last day of September, in North Great River, sunrise is at 6:48 am and sunset at 6:35 pm EDT.

Sunshine

In North Great River, the average sunshine in September is 9.1h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The UV index of 5 in September translates into these instructions:
Take precautions - Protection against skin and eye damage is obliged. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September in North Great River?

In North Great River, in September, the average high-temperature is 72.1°F (22.3°C), and the average low-temperature is 65.3°F (18.5°C).

What is the average humidity in September in North Great River?

In September, the average relative humidity in North Great River is 74%.

How much does it rain in North Great River in September?

In September, in North Great River, New York, the rain falls for 13.5 days. Throughout September, 2.56" (65mm) of precipitation is accumulated.

When it does not snow in North Great River?

In North Great River, New York, snow does not fall in April through September.

Does it snow in North Great River in September?

In North Great River, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in North Great River?

The average day length in September in North Great River is 12h and 27min.

When is the sunrise / sunset in September in North Great River?

On the first day of September in North Great River, New York, sunrise is at 6:20 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:48 am and sunset at 6:35 pm EDT.

How long on average sun shines in September in North Great River?

In North Great River, New York, the average sunshine duration in September is 9.1h.

What is the UV index intensity in September in North Great River?

In North Great River, the average daily maximum UV index in September is 5. 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
North Great River, NY

Average temperature in September - North Great River, NY
  • Average high temperature in September: 72.1°F

The warmest month (with the highest average high temperature) is July (79°F).
The month with the lowest average high temperature is January (37.9°F).

  • Average low temperature in September: 65.3°F

The month with the highest average low temperature is August (72°F).
The coldest month (with the lowest average low temperature) is January (30°F).

Average pressure in September
North Great River, NY

Average pressure in September - North Great River, NY
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
North Great River, NY

Average wind speed in September - North Great River, NY
  • Average wind speed in September: 10.1mph

The windiest month (with the highest average wind speed) is January (13.4mph).
The calmest month (with the lowest average wind speed) is July (8.6mph).

Average humidity in September
North Great River, NY

Average humidity in September - North Great River, NY
  • Average humidity in September: 74%

The months with the highest relative humidity are May and June (77%).
The month with the lowest relative humidity is November (71%).

Average rainfall in September
North Great River, NY

Average rainfall in September - North Great River, NY
  • Average rainfall in September: 2.56"

The wettest month (with the highest rainfall) is July (3.86").
The driest month (with the least rainfall) is January (2.05").

Average rainfall days in September
North Great River, NY

Average rainfall days in September - North Great River, NY
  • Average rainfall days in September: 13.5 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (7.6 days).

Average snowfall in September
North Great River, NY

Average snowfall in September - North Great River, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is March (1.97").
The months with the least snowfall are April, May, June, July, August and September (0").

Average snowfall days in September
North Great River, NY

Average snowfall days in September - North Great River, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
North Great River, NY

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in September
North Great River, NY

Average sunshine days in September - North Great River, NY
  • Average sunshine days in September: 14.7 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.2 days).

Average UV index in September
North Great River, NY

Average UV index in September - North Great River, NY
  • Average UV index in September: 5

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March and December (UV index 2).

Average cloud cover in September
North Great River, NY

Average cloud cover in September - North Great River, NY
  • Average cloud cover in September: 31

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).

Average visibility in September
North Great River, NY

Average visibility in September - North Great River, NY
  • Average visibility in September: 6mi

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

North Great River, New York, USA

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