September weather forecast
Pearl River, NY

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Weather in September

September, the first month of the autumn in Pearl River, is still a warm month, with an average temperature fluctuating between 75°F (23.9°C) and 57.9°F (14.4°C).

Temperature

Pearl River records a mild change in average high-temperature during September, easing from 82.9°F (28.3°C) in August to a still moderately hot 75°F (23.9°C). Throughout September, an average low-temperature of 57.9°F (14.4°C) is experienced in Pearl River.

Humidity

In September, the average relative humidity in Pearl River, New York, is 75%.

Rainfall

September is the month with the least rainfall in Pearl River. Rain falls for 12.5 days and accumulates 1.54" (39mm) of precipitation.

Snowfall

May through September are months without snowfall in Pearl River.

Daylight

The average length of the day in September in Pearl River is 12h and 28min.
On the first day of the month, sunrise is at 6:23 am and sunset at 7:28 pm. On the last day of September, in Pearl River, sunrise is at 6:52 am and sunset at 6:39 pm EDT.

Sunshine

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

UV index

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 4 during September translates into these guidelines:
Adopt protective measures - Suggestions to resist sunburn are offered. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
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Frequently asked questions

What are September temperatures in Pearl River?

The high-temperature, in September, in Pearl River, is 75°F (23.9°C), while the low-temperature averages to 57.9°F (14.4°C). In August, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 87.8°F (31°C).

What is the average humidity in September in Pearl River?

The average relative humidity in September is 75%.

What is the driest month in Pearl River?

The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 1.54" (39mm) of precipitation.

How much does it rain in Pearl River in September?

In Pearl River, in September, it is raining for 12.5 days, with typically 1.54" (39mm) of accumulated precipitation.

When it does not snow in Pearl River?

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

Does it snow in Pearl River in September?

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

What is the average length of the day in September in Pearl River?

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

When is the sunrise / sunset in September in Pearl River?

On the first day of September in Pearl River, sunrise is at 6:23 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:39 pm EDT.

How long on average sun shines in September in Pearl River?

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

How high is the UV index in September in Pearl River?

In Pearl River, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability 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
Pearl River, NY

Average temperature in September - Pearl River, NY
  • Average high temperature in September: 75°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (34.9°F).

  • Average low temperature in September: 57.9°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).

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Average pressure in September
Pearl River, NY

Average pressure in September - Pearl River, 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
Pearl River, NY

Average wind speed in September - Pearl River, NY
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is March (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

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Average humidity in September
Pearl River, NY

Average humidity in September - Pearl River, NY
  • Average humidity in September: 75%

The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are July and August (71%).

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Average rainfall in September
Pearl River, NY

Average rainfall in September - Pearl River, NY
  • Average rainfall in September: 1.54"

The wettest month (with the highest rainfall) is July (2.76").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days in September
Pearl River, NY

Average rainfall days in September - Pearl River, NY
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is July (16.8 days).
The month with the least rainy days is January (6.7 days).

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Average snowfall in September
Pearl River, NY

Average snowfall in September - Pearl River, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is March (4.17").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in September
Pearl River, NY

Average snowfall days in September - Pearl River, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (6.7 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
Pearl River, NY

Average daylight in September / Average sunshine in September - Pearl River, 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 30min).

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Average sunshine days in September
Pearl River, NY

Average sunshine days in September - Pearl River, NY
  • Average sunshine days in September: 15.6 days

The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is June (12.4 days).

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Average UV index in September
Pearl River, NY

Average UV index in September - Pearl River, 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
Pearl River, NY

Average cloud cover in September - Pearl River, NY
  • Average cloud cover in September: 38

The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 33).

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Average visibility in September
Pearl River, NY

Average visibility in September - Pearl River, NY
  • Average visibility in September: 6mi

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

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Pearl River, New York, USA

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