September weather forecast
Glen Head, NY

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Weather in September

September, the first month of the autumn in Glen Head, is also a moderately hot month, with an average temperature ranging between min 63.5°F (17.5°C) and max 73.4°F (23°C).

Temperature

The commencement of September indicates a gentle shift in the average high-temperature, receding from August's warm 80.4°F (26.9°C) to a still moderately hot 73.4°F (23°C). Glen Head cools down to an average low-temperature of 63.5°F (17.5°C) throughout the month of September.

Humidity

In September, the average relative humidity is 73%.

Rainfall

September is the month with the least rainfall. Rain falls for 12.9 days and accumulates 2.4" (61mm) of precipitation.

Snowfall

May through October are months without snowfall in Glen Head.

Daylight

The average length of the day in September is 12h and 27min.
On the first day of the month, sunrise is at 6:22 am and sunset at 7:26 pm. On the last day of September, sunrise is at 6:50 am and sunset at 6:37 pm EDT.

Sunshine

The average sunshine in September is 9h.

UV index

In Glen Head, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 5 in September interprets into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.

Frequently asked questions

What is the temperature in September?

September temperatures vary between a high-temperature of 73.4°F (23°C) and a low-temperature of 63.5°F (17.5°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in July is estimated at 86°F (30°C).

What is the average humidity in September?

In September, the average relative humidity in Glen Head is 73%.

What is the driest month?

The month with the least rainfall is September, when the rain falls for 12.9 days and typically collects 2.4" (61mm) of precipitation.

How many days does it rain in September?

In Glen Head, in September, during 12.9 rainfall days, 2.4" (61mm) of precipitation is typically accumulated.

When it does not snow?

May through October are months without snowfall.

How many hours of daylight does Glen Head have in September?

In Glen Head, the average day length in September is 12h and 27min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:22 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:37 pm EDT.

How long on average sun shines in September?

In Glen Head, the average sunshine duration in September is 9h.

What is the UV index intensity in September in Glen Head?

In Glen Head, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to 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
Glen Head, NY

Average temperature in September - Glen Head, NY
  • Average high temperature in September: 73.4°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (36.5°F).

  • Average low temperature in September: 63.5°F

The months with the highest average low temperature are July and August (70.3°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).

Average pressure in September
Glen Head, NY

Average pressure in September - Glen Head, NY
  • Average pressure in September: 30.05"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).

Average wind speed in September
Glen Head, NY

Average wind speed in September - Glen Head, NY
  • Average wind speed in September: 8.3mph

The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).

Average humidity in September
Glen Head, NY

Average humidity in September - Glen Head, NY
  • Average humidity in September: 73%

The months with the highest relative humidity are February, May and December (75%).
The months with the lowest relative humidity are August and November (71%).

Average rainfall in September
Glen Head, NY

Average rainfall in September - Glen Head, NY
  • Average rainfall in September: 2.4"

The wettest month (with the highest rainfall) is December (4.06").
The driest month (with the least rainfall) is September (2.4").

Average rainfall days in September
Glen Head, NY

Average rainfall days in September - Glen Head, NY
  • Average rainfall days in September: 12.9 days

The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in September
Glen Head, NY

Average snowfall in September - Glen Head, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is March (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Glen Head, NY

Average snowfall days in September - Glen Head, NY
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (6.8 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
Glen Head, NY

Average daylight in September / Average sunshine in September - Glen Head, 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: 9h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in September
Glen Head, NY

Average sunshine days in September - Glen Head, NY
  • Average sunshine days in September: 15.2 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (10.6 days).

Average UV index in September
Glen Head, NY

Average UV index in September - Glen Head, 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, November and December (UV index 2).

Average cloud cover in September
Glen Head, NY

Average cloud cover in September - Glen Head, NY
  • Average cloud cover in September: 33

The months with the most cloud cover are February and December (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 29).

Average visibility in September
Glen Head, NY

Average visibility in September - Glen Head, 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).

Glen Head, New York, USA

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