September weather forecast
South Farmingdale, NY

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Weather in September

The first month of the autumn, September, is still a pleasant month in South Farmingdale, New York, with an average temperature fluctuating between 65.5°F (18.6°C) and 72.5°F (22.5°C).

Temperature

The beginning of September brings a minor change in the average high-temperature, shifting from a moderately hot 78.6°F (25.9°C) in August to an agreeable 72.5°F (22.5°C). South Farmingdale indicates a consistently low-temperature of 65.5°F (18.6°C) during the nights of September.

Humidity

In South Farmingdale, the average relative humidity in September is 74%.

Rainfall

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

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 6:49 am and sunset at 6:37 pm EDT.

Sunshine

In September, the average sunshine is 9.1h.

UV index

In South Farmingdale, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: In September, the maximum UV index of 5 suggests this advice:
Undertake protective steps - Preventing sun damage is advised. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Boost your sun resistance with garments that are densely woven yet spacious.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in South Farmingdale?

During September, South Farmingdale experiences an average 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?

The average relative humidity in September is 74%.

How many days does it rain in September?

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

When it does not snow?

In South Farmingdale, snow does not fall in June through October.

How many hours of daylight does South Farmingdale have in September?

In South Farmingdale, the average day length in September is 12h and 27min.

When is the sunrise / sunset in September?

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, in South Farmingdale, sunrise is at 6:49 am and sunset at 6:37 pm EDT.

How long on average sun shines in September?

In South Farmingdale, the average sunshine duration in September is 9.1h.

What is the UV index reading in September in South Farmingdale?

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes 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
South Farmingdale, NY

Average temperature in September - South Farmingdale, 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).

Average pressure in September
South Farmingdale, NY

Average pressure in September - South Farmingdale, 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).

Average wind speed in September
South Farmingdale, NY

Average wind speed in September - South Farmingdale, 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).

Average humidity in September
South Farmingdale, NY

Average humidity in September - South Farmingdale, 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%).

Average rainfall in September
South Farmingdale, NY

Average rainfall in September - South Farmingdale, 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").

Average rainfall days in September
South Farmingdale, NY

Average rainfall days in September - South Farmingdale, 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).

Average snowfall in September
South Farmingdale, NY

Average snowfall in September - South Farmingdale, 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").

Average snowfall days in September
South Farmingdale, NY

Average snowfall days in September - South Farmingdale, 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).

Average daylight in September /
Average sunshine in September
South Farmingdale, NY

Average daylight in September / Average sunshine in September - South Farmingdale, 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).

Average sunshine days in September
South Farmingdale, NY

Average sunshine days in September - South Farmingdale, 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).

Average UV index in September
South Farmingdale, NY

Average UV index in September - South Farmingdale, 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).

Average cloud cover in September
South Farmingdale, NY

Average cloud cover in September - South Farmingdale, 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).

Average visibility in September
South Farmingdale, NY

Average visibility in September - South Farmingdale, 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).

South Farmingdale, New York, USA

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