September weather forecast
Peconic, NY

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Weather in September

September, the first month of the autumn in Peconic, is still a pleasant month, with an average temperature varying between 65.1°F (18.4°C) and 70.7°F (21.5°C).

Temperature

The shift into September reveals an average high-temperature of an agreeable 70.7°F (21.5°C), closely mirroring August's climate. Peconic notes a consistent average low-temperature of 65.1°F (18.4°C) during September nights.

Humidity

The average relative humidity in September in Peconic, New York, is 76%.

Rainfall

The month with the least rainfall in Peconic is September, when the rain falls for 12.6 days and typically collects 2.17" (55mm) of precipitation.

Snowfall

In Peconic, snow does not fall in April through October.

Daylight

In September, the average length of the day in Peconic is 12h and 28min.
On the first day of the month, sunrise is at 6:17 am and sunset at 7:22 pm. On the last day of September, in Peconic, sunrise is at 6:46 am and sunset at 6:33 pm EDT.

Sunshine

In Peconic, the average sunshine in September is 8.8h.

UV index

In Peconic, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In September, the average maximum UV index of 5 translates into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
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Frequently asked questions

What are the temperatures in Peconic in September?

The high-temperature, in September, in Peconic, is 70.7°F (21.5°C), while the low-temperature averages to 65.1°F (18.4°C).

What is the average humidity in September in Peconic?

In September, the average relative humidity in Peconic is 76%.

What is the driest month in Peconic?

September is the month with the least rainfall in Peconic. Rain falls for 12.6 days and accumulates 2.17" (55mm) of precipitation.

How much does it rain in Peconic in September?

In September, the rain falls for 12.6 days. Throughout September, 2.17" (55mm) of precipitation is accumulated.

When it does not snow in Peconic?

April through October are months without snowfall in Peconic.

What is the average length of the day in September in Peconic?

In Peconic, New York, the average day length in September is 12h and 28min.

When is the sunrise / sunset in September in Peconic?

On the first day of September in Peconic, sunrise is at 6:17 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:46 am and sunset at 6:33 pm EDT.

How many hours of sunshine does Peconic have in September?

The average sunshine duration in September is 8.8h.

What is the UV index intensity in September in Peconic?

The average daily maximum UV index in September in Peconic is 5. A UV Index estimate of 3 to 5 represents a medium health risk 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
Peconic, NY

Average temperature in September - Peconic, NY
  • Average high temperature in September: 70.7°F

The warmest month (with the highest average high temperature) is August (75.9°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in September: 65.1°F

The month with the highest average low temperature is August (71.2°F).
The coldest month (with the lowest average low temperature) is January (31.3°F).

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Average pressure in September
Peconic, NY

Average pressure in September - Peconic, NY
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Peconic, NY

Average wind speed in September - Peconic, NY
  • Average wind speed in September: 12.4mph

The windiest month (with the highest average wind speed) is January (16mph).
The calmest month (with the lowest average wind speed) is July (10.4mph).

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Average humidity in September
Peconic, NY

Average humidity in September - Peconic, NY
  • Average humidity in September: 76%

The months with the highest relative humidity are May and June (81%).
The month with the lowest relative humidity is November (72%).

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Average rainfall in September
Peconic, NY

Average rainfall in September - Peconic, NY
  • Average rainfall in September: 2.17"

The wettest month (with the highest rainfall) is December (3.82").
The driest month (with the least rainfall) is September (2.17").

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Average rainfall days in September
Peconic, NY

Average rainfall days in September - Peconic, NY
  • Average rainfall days in September: 12.6 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (9.1 days).

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Average snowfall in September
Peconic, NY

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

The month with the highest snowfall is March (2.36").
The months with the least snowfall are April, May, June, July, August, September and October (0").

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Average snowfall days in September
Peconic, NY

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

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

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

Average daylight in September / Average sunshine in September - Peconic, 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 18min).

  • Average sunshine in September: 8h and 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).

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Average sunshine days in September
Peconic, NY

Average sunshine days in September - Peconic, NY
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is February (12.8 days).

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Average UV index in September
Peconic, NY

Average UV index in September - Peconic, 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).

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Average cloud cover in September
Peconic, NY

Average cloud cover in September - Peconic, NY
  • Average cloud cover in September: 33

The month with the most cloud cover is December (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in September
Peconic, NY

Average visibility in September - Peconic, 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).

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Peconic, New York, USA

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