September weather forecast
Port Jervis, NY

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Weather in September

The first month of the autumn, September, is also an agreeable month in Port Jervis, New York, with temperature in the range of an average low of 52.7°F (11.5°C) and an average high of 73°F (22.8°C).

Temperature

A moderate decline in average high-temperatures is noted in September, moving from a moderately hot 80.1°F (26.7°C) in August to a pleasant 73°F (22.8°C). An average minimum temperature of 52.7°F (11.5°C) is recorded in Port Jervis during the month of September.

Humidity

In September, the average relative humidity is 79%.

Rainfall

In Port Jervis, in September, during 11.5 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In Port Jervis, 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 in Port Jervis.

Daylight

The average length of the day in September in Port Jervis 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 Port Jervis, sunrise is at 6:55 am and sunset at 6:41 pm EDT.

Sunshine

In Port Jervis, the average sunshine in September is 8.7h.

UV index

In Port Jervis, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 4 during September, leads to the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
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Frequently asked questions

What is the average September temperature in Port Jervis?

The high-temperature, in September, in Port Jervis, records 73°F (22.8°C), while the low-temperature is 52.7°F (11.5°C). In July, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is computed to be 89.6°F (32°C).

What is the average humidity in September in Port Jervis?

The average relative humidity in September in Port Jervis is 79%.

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

In Port Jervis, during September, the rain falls for 11.5 days and regularly aggregates up to 1.18" (30mm) of precipitation.

When it does not snow in Port Jervis?

June through September are months without snowfall in Port Jervis, New York.

Does it snow in Port Jervis in September?

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

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

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

What time are sunrise and sunset in September in Port Jervis?

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, sunrise is at 6:55 am and sunset at 6:41 pm EDT.

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

In September, the average sunshine duration is 8.7h.

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

In September, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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 Jervis, NY

Average temperature in September - Port Jervis, 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).

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Average pressure in September
Port Jervis, NY

Average pressure in September - Port Jervis, 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).

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Average wind speed in September
Port Jervis, NY

Average wind speed in September - Port Jervis, 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).

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Average humidity in September
Port Jervis, NY

Average humidity in September - Port Jervis, 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%).

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Average rainfall in September
Port Jervis, NY

Average rainfall in September - Port Jervis, 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").

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Average rainfall days in September
Port Jervis, NY

Average rainfall days in September - Port Jervis, 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).

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Average snowfall in September
Port Jervis, NY

Average snowfall in September - Port Jervis, 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").

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Average snowfall days in September
Port Jervis, NY

Average snowfall days in September - Port Jervis, 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).

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

Average daylight in September / Average sunshine in September - Port Jervis, 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).

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Average sunshine days in September
Port Jervis, NY

Average sunshine days in September - Port Jervis, 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).

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Average UV index in September
Port Jervis, NY

Average UV index in September - Port Jervis, 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).

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Average cloud cover in September
Port Jervis, NY

Average cloud cover in September - Port Jervis, 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).

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Average visibility in September
Port Jervis, NY

Average visibility in September - Port Jervis, 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).

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Port Jervis, New York, USA

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