September weather forecast
Piermont, NY

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Weather in September

The first month of the autumn, September, is still a warm month in Piermont, New York, with an average temperature fluctuating between 75.2°F (24°C) and 58.5°F (14.7°C).

Temperature

September's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from August's 82.9°F (28.3°C) to a still moderately hot 75.2°F (24°C). An average low-temperature of 58.5°F (14.7°C) marks the nights in Piermont throughout September.

Humidity

In September, the average relative humidity is 74%.

Rainfall

In Piermont, during September, the rain falls for 12.5 days and regularly aggregates up to 2.01" (51mm) of precipitation. In Piermont, New York, during the entire year, the rain falls for 151.8 days and collects up to 30.79" (782mm) of precipitation.

Snowfall

May through September are months without snowfall in Piermont, New York.

Daylight

The average length of the day in September in Piermont is 12h and 28min.
On the first day of the month, sunrise is at 6:23 am and sunset at 7:27 pm. On the last day of September, in Piermont, sunrise is at 6:52 am and sunset at 6:38 pm EDT.

Sunshine

In Piermont, New York, the average sunshine in September is 8.7h.

UV index

In Piermont, New York, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high UV index of 4 in September translates into the following recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
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Frequently asked questions

What is the usual temperature for Piermont in September?

During September, Piermont experiences an average high-temperature of 75.2°F (24°C) and a low-temperature of 58.5°F (14.7°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 87.8°F (31°C).

What is the average humidity in September in Piermont?

In September, the average relative humidity in Piermont, New York, is 74%.

How many days does it rain in September in Piermont?

In Piermont, New York, in September, during 12.5 rainfall days, 2.01" (51mm) of precipitation is typically accumulated.

When it does not snow in Piermont?

May through September are months without snowfall in Piermont, New York.

Does it snow in Piermont in September?

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

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

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

When are sunrise and sunset in September in Piermont?

On the first day of September in Piermont, New York, sunrise is at 6:23 am and sunset at 7:27 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 Piermont have in September?

In September, the average sunshine duration in Piermont, New York, is 8.7h.

How high is the UV index in September in Piermont?

In September, the average daily maximum UV index in Piermont, New York, is 4. A UV Index reading of 3 to 5 represents a medium health risk from 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
Piermont, NY

Average temperature in September - Piermont, NY
  • Average high temperature in September: 75.2°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (35.2°F).

  • Average low temperature in September: 58.5°F

The month with the highest average low temperature is July (66.7°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).

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Average pressure in September
Piermont, NY

Average pressure in September - Piermont, NY
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in September
Piermont, NY

Average wind speed in September - Piermont, NY
  • Average wind speed in September: 5.9mph

The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

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Average humidity in September
Piermont, NY

Average humidity in September - Piermont, NY
  • Average humidity in September: 74%

The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is August (70%).

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Average rainfall in September
Piermont, NY

Average rainfall in September - Piermont, NY
  • Average rainfall in September: 2.01"

The wettest month (with the highest rainfall) is July (3.35").
The driest month (with the least rainfall) is January (1.89").

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Average rainfall days in September
Piermont, NY

Average rainfall days in September - Piermont, NY
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (6.8 days).

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Average snowfall in September
Piermont, NY

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

The month with the highest snowfall is March (2.8").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Piermont, NY

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

The month with the highest number of snowfall days is February (5.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - Piermont, 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 4min

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 36min).

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Average sunshine days in September
Piermont, NY

Average sunshine days in September - Piermont, NY
  • Average sunshine days in September: 14.9 days

The months with the most sunshine days are January and November (20 days).
The month with the least sunshine days is July (10.9 days).

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Average UV index in September
Piermont, NY

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

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, November and December (UV index 2).

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Average cloud cover in September
Piermont, NY

Average cloud cover in September - Piermont, NY
  • Average cloud cover in September: 36

The months with the most cloud cover are February, March and December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 32).

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Average visibility in September
Piermont, NY

Average visibility in September - Piermont, 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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Piermont, New York, USA

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