September weather forecast
Port Ewen, NY

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Weather in September

The first month of the autumn, September, is still a warm month in Port Ewen, New York, with temperature in the range of an average high of 73.4°F (23°C) and an average low of 52.5°F (11.4°C).

Temperature

With the arrival of September, Port Ewen experiences a modest decline in average high-temperatures, transitioning from a moderately hot 81.3°F (27.4°C) in August to a still warm 73.4°F (23°C). An average low-temperature of 52.5°F (11.4°C) is recorded during the nights in September in Port Ewen.

Humidity

The average relative humidity in September is 77%.

Rainfall

September is the month with the least rainfall in Port Ewen, New York. Rain falls for 10.5 days and accumulates 1.5" (38mm) of precipitation.

Snowfall

In Port Ewen, snow does not fall in June through September.

Daylight

The average length of the day in September in Port Ewen is 12h and 28min.
On the first day of September, sunrise is at 6:22 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:38 pm EDT.

Sunshine

The average sunshine in September in Port Ewen is 9h.

UV index

The average daily maximum UV index in September in Port Ewen is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 4 suggests this advice:
Adopt protective measures - Suggestions to resist sunburn are offered. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Boost your sun resistance with garments that are densely woven yet spacious.
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 Port Ewen?

The high-temperature, in September, in Port Ewen, is 73.4°F (23°C), while the low-temperature averages to 52.5°F (11.4°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in August is calculated to be 86°F (30°C).

What is the average humidity in September in Port Ewen?

The average relative humidity in September is 77%.

What is the driest month in Port Ewen?

The month with the least rainfall in Port Ewen, New York, is September, when the rain falls for 10.5 days and typically collects 1.5" (38mm) of precipitation.

How many days does it rain in September in Port Ewen?

In Port Ewen, New York, in September, it is raining for 10.5 days, with typically 1.5" (38mm) of accumulated precipitation.

When it does not snow in Port Ewen?

June through September are months without snowfall in Port Ewen.

Does it snow in Port Ewen in September?

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

What is the average length of the day in September in Port Ewen?

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

When are sunrise and sunset in September in Port Ewen?

On the first day of September, sunrise is at 6:22 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:38 pm EDT.

How many hours of sunshine does Port Ewen have in September?

The average sunshine duration in September in Port Ewen is 9h.

What is the UV index intensity in September in Port Ewen?

In September, the average daily maximum UV index in Port Ewen is 4. A UV Index reading of 3 to 5 represents a moderate health threat from exposure to the Sun's 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
Port Ewen, NY

Average temperature in September - Port Ewen, NY
  • Average high temperature in September: 73.4°F

The warmest month (with the highest average high temperature) is July (83.5°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in September: 52.5°F

The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure in September
Port Ewen, NY

Average pressure in September - Port Ewen, 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 (29.93"Hg).

Average wind speed in September
Port Ewen, NY

Average wind speed in September - Port Ewen, NY
  • Average wind speed in September: 5mph

The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

Average humidity in September
Port Ewen, NY

Average humidity in September - Port Ewen, NY
  • Average humidity in September: 77%

The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is April (74%).

Average rainfall in September
Port Ewen, NY

Average rainfall in September - Port Ewen, NY
  • Average rainfall in September: 1.5"

The wettest month (with the highest rainfall) is October (2.87").
The driest month (with the least rainfall) is September (1.5").

Average rainfall days in September
Port Ewen, NY

Average rainfall days in September - Port Ewen, NY
  • Average rainfall days in September: 10.5 days

The month with the highest number of rainy days is April (16.1 days).
The month with the least rainy days is February (8.6 days).

Average snowfall in September
Port Ewen, NY

Average snowfall in September - Port Ewen, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (5.43").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Port Ewen, NY

Average snowfall days in September - Port Ewen, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (10.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Port Ewen, NY

Average daylight in September / Average sunshine in September - Port Ewen, 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: 9h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in September
Port Ewen, NY

Average sunshine days in September - Port Ewen, NY
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is April (11.8 days).

Average UV index in September
Port Ewen, NY

Average UV index in September - Port Ewen, NY
  • Average UV index in September: 4

The months with the highest UV index are June and July (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
Port Ewen, NY

Average cloud cover in September - Port Ewen, NY
  • Average cloud cover in September: 36

The month with the most cloud cover is February (Cloud cover 50).
The months with the least cloud cover are July and August (Cloud cover 34).

Average visibility in September
Port Ewen, NY

Average visibility in September - Port Ewen, NY
  • Average visibility in September: 5mi

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

Port Ewen, New York, USA

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