September weather forecast
Old Bethpage, NY

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Weather in September

September, the first month of the autumn in Old Bethpage, is still a pleasant month, with temperature in the range of an average high of 72.5°F (22.5°C) and an average low of 65.5°F (18.6°C).

Temperature

In September, the meteorological conditions change slightly, with the average high-temperature moving from a warm 78.6°F (25.9°C) in August to an agreeable 72.5°F (22.5°C). Old Bethpage's nighttime average temperature in September drops marginally from the daytime highs, settling at an enjoyable 65.5°F (18.6°C).

Humidity

In Old Bethpage, the average relative humidity in September is 74%.

Rainfall

In September, in Old Bethpage, New York, the rain falls for 12 days. Throughout September, 0.79" (20mm) of precipitation is accumulated. Throughout the year, there are 128.1 rainfall days, and 12.56" (319mm) of precipitation is accumulated.

Snowfall

June through October are months without snowfall.

Daylight

In Old Bethpage, the average length of the day in September is 12h and 27min.
On the first day of September, sunrise is at 6:21 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:37 pm EDT.

Sunshine

In September, the average sunshine is 9.1h.

UV index

The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum daily UV index of 5 during September morphs into the following directions:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
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Frequently asked questions

What is the temperature in September in Old Bethpage?

September temperatures in Old Bethpage, New York, vary between a high-temperature of 72.5°F (22.5°C) and a low-temperature of 65.5°F (18.6°C).

What is the average humidity in September in Old Bethpage?

The average relative humidity in September in Old Bethpage, New York, is 74%.

How much does it rain in Old Bethpage in September?

In Old Bethpage, New York, during September, the rain falls for 12 days and regularly aggregates up to 0.79" (20mm) of precipitation.

When it does not snow in Old Bethpage?

In Old Bethpage, snow does not fall in June through October.

How many hours of daylight does Old Bethpage have in September?

In Old Bethpage, the average day length in September is 12h and 27min.

What time are sunrise and sunset in September in Old Bethpage?

In September, on the first day of the month, sunrise is at 6:21 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:37 pm EDT.

How many hours of sunshine does Old Bethpage have in September?

In Old Bethpage, the average sunshine duration in September is 9.1h.

What is the UV index intensity in September in Old Bethpage?

The average daily maximum UV index in September in Old Bethpage, New York, is 5. 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
Old Bethpage, NY

Average temperature in September - Old Bethpage, NY
  • Average high temperature in September: 72.5°F

The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (37.8°F).

  • Average low temperature in September: 65.5°F

The month with the highest average low temperature is August (71.8°F).
The coldest month (with the lowest average low temperature) is January (29.7°F).

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Average pressure in September
Old Bethpage, NY

Average pressure in September - Old Bethpage, NY
  • Average pressure in September: 30.05"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).

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Average wind speed in September
Old Bethpage, NY

Average wind speed in September - Old Bethpage, NY
  • Average wind speed in September: 10.1mph

The windiest month (with the highest average wind speed) is January (13.3mph).
The calmest month (with the lowest average wind speed) is July (8.7mph).

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Average humidity in September
Old Bethpage, NY

Average humidity in September - Old Bethpage, NY
  • Average humidity in September: 74%

The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is November (71%).

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Average rainfall in September
Old Bethpage, NY

Average rainfall in September - Old Bethpage, NY
  • Average rainfall in September: 0.79"

The wettest month (with the highest rainfall) is July (1.73").
The driest month (with the least rainfall) is February (0.59").

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Average rainfall days in September
Old Bethpage, NY

Average rainfall days in September - Old Bethpage, NY
  • Average rainfall days in September: 12 days

The month with the highest number of rainy days is July (14.1 days).
The month with the least rainy days is January (5.9 days).

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Average snowfall in September
Old Bethpage, NY

Average snowfall in September - Old Bethpage, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is March (0.35").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Old Bethpage, NY

Average snowfall days in September - Old Bethpage, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in September /
Average sunshine in September
Old Bethpage, NY

Average daylight in September / Average sunshine in September - Old Bethpage, NY
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in September
Old Bethpage, NY

Average sunshine days in September - Old Bethpage, NY
  • Average sunshine days in September: 16.2 days

The month with the most sunshine days is January (21.8 days).
The month with the least sunshine days is June (14 days).

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Average UV index in September
Old Bethpage, NY

Average UV index in September - Old Bethpage, 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
Old Bethpage, NY

Average cloud cover in September - Old Bethpage, NY
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in September
Old Bethpage, NY

Average visibility in September - Old Bethpage, 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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Old Bethpage, New York, USA

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