September weather forecast
Tristates, NY

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Weather in September

The first month of the autumn, September, is also an agreeable month in Tristates, New York, with an average temperature fluctuating between 52.7°F (11.5°C) and 73°F (22.8°C).

Temperature

Transition into September subtly marks a drop in the average high-temperature, moderately moving from a warm 80.1°F (26.7°C) in August to an agreeable 73°F (22.8°C). During September, Tristates experiences a consistent low-temperature average of 52.7°F (11.5°C).

Humidity

The average relative humidity in September in Tristates is 79%.

Rainfall

In Tristates, New York, in September, during 11.5 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In Tristates, during the entire year, the rain falls for 150.5 days and collects up to 19.37" (492mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In Tristates, the average length of the day in September is 12h and 28min.
On the first day of the month, sunrise is at 6:25 am and sunset at 7:31 pm. On the last day of September, in Tristates, New York, sunrise is at 6:55 am and sunset at 6:41 pm EDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

In Tristates, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 4 in September transforms into the following instructions:
Heed the precautions - It is counselled to guard against solar damage. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Tristates?

During September, Tristates experiences an average high-temperature of 73°F (22.8°C) and a low-temperature of 52.7°F (11.5°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in July is calculated to be 89.6°F (32°C).

What is the average humidity in September in Tristates?

In Tristates, New York, the average relative humidity in September is 79%.

How much does it rain in Tristates in September?

In September, the rain falls for 11.5 days. Throughout September, 1.18" (30mm) of precipitation is accumulated.

When it does not snow in Tristates?

June through September are months without snowfall.

Does it snow in Tristates in September?

In Tristates, in September, it doesn't snow. In October, it regularly snows.

How many hours of daylight does Tristates have in September?

The average day length in September is 12h and 28min.

When are sunrise and sunset in September in Tristates?

In September, on the first day of the month, sunrise is at 6:25 am and sunset at 7:31 pm. On the last day of the month, in Tristates, sunrise is at 6:55 am and sunset at 6:41 pm EDT.

How long on average sun shines in September in Tristates?

In Tristates, the average sunshine duration in September is 8.7h.

What is the UV index reading in September in Tristates?

The average daily maximum UV index in September in Tristates is 4. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Tristates, NY

Average temperature in September - Tristates, NY
  • Average high temperature in September: 73°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (32°F).

  • Average low temperature in September: 52.7°F

The month with the highest average low temperature is July (60.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in September
Tristates, NY

Average pressure in September - Tristates, 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
Tristates, NY

Average wind speed in September - Tristates, NY
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

Average humidity in September
Tristates, NY

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

The months with the highest relative humidity are February and December (83%).
The months with the lowest relative humidity are April and July (77%).

Average rainfall in September
Tristates, NY

Average rainfall in September - Tristates, NY
  • Average rainfall in September: 1.18"

The wettest month (with the highest rainfall) is May (2.36").
The driest month (with the least rainfall) is January (1.02").

Average rainfall days in September
Tristates, NY

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

The month with the highest number of rainy days is May (16.7 days).
The months with the least rainy days are January and February (8.6 days).

Average snowfall in September
Tristates, NY

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

The month with the highest snowfall is February (3.07").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Tristates, NY

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

The month with the highest number of snowfall days is February (10 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).

Average sunshine days in September
Tristates, NY

Average sunshine days in September - Tristates, NY
  • Average sunshine days in September: 15.9 days

The month with the most sunshine days is October (17.4 days).
The months with the least sunshine days are April and May (11.8 days).

Average UV index in September
Tristates, NY

Average UV index in September - Tristates, NY
  • Average UV index in September: 4

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

Average cloud cover in September
Tristates, NY

Average cloud cover in September - Tristates, NY
  • Average cloud cover in September: 40

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 36).

Average visibility in September
Tristates, NY

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

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

Tristates, New York, USA

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