September weather forecast
Lynbrook, NY

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Weather in September

The first month of the autumn, September, is also an agreeable month in Lynbrook, New York, with an average temperature ranging between max 72.5°F (22.5°C) and min 64.6°F (18.1°C).

Temperature

Lynbrook experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a moderately hot 79.2°F (26.2°C) in August to an agreeable 72.5°F (22.5°C). Lynbrook, in September, registers a nighttime average temperature of 64.6°F (18.1°C).

Humidity

The average relative humidity in September is 74%.

Rainfall

The month with the least rainfall is September, when the rain falls for 8.7 days and typically collects 0.31" (8mm) of precipitation.

Snowfall

April through November are months without snowfall.

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, in Lynbrook, sunrise is at 6:50 am and sunset at 6:37 pm EDT.

Sunshine

In Lynbrook, the average sunshine in September is 9.1h.

UV index

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 rays for the average person.
Note: The maximum UV index, 5 during September, leads to the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

Frequently asked questions

What is the average September temperature?

The average high-temperature, in September, in Lynbrook, is 72.5°F (22.5°C), while the average low-temperature is 64.6°F (18.1°C).

What is the average humidity in September?

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

What is the driest month?

September is the month with the least rainfall. Rain falls for 8.7 days and accumulates 0.31" (8mm) of precipitation.

How much does it rain in September?

In Lynbrook, in September, it is raining for 8.7 days, with typically 0.31" (8mm) of accumulated precipitation.

When it does not snow in Lynbrook?

In Lynbrook, snow does not fall in April through November.

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

The average day length in September in Lynbrook 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 many hours of sunshine does Lynbrook have in September?

In September, the average sunshine duration is 9.1h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate vulnerability 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
Lynbrook, NY

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

The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (37.6°F).

  • Average low temperature in September: 64.6°F

The month with the highest average low temperature is July (71.4°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).

Average pressure in September
Lynbrook, NY

Average pressure in September - Lynbrook, 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
Lynbrook, NY

Average wind speed in September - Lynbrook, NY
  • Average wind speed in September: 9.4mph

The windiest month (with the highest average wind speed) is January (12.7mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).

Average humidity in September
Lynbrook, NY

Average humidity in September - Lynbrook, 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
Lynbrook, NY

Average rainfall in September - Lynbrook, NY
  • Average rainfall in September: 0.31"

The wettest month (with the highest rainfall) is July (0.98").
The driest month (with the least rainfall) is September (0.31").

Average rainfall days in September
Lynbrook, NY

Average rainfall days in September - Lynbrook, NY
  • Average rainfall days in September: 8.7 days

The month with the highest number of rainy days is July (12.7 days).
The months with the least rainy days are January and November (5.2 days).

Average snowfall in September
Lynbrook, NY

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

The month with the highest snowfall is March (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Lynbrook, NY

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

The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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

Average daylight in September / Average sunshine in September - Lynbrook, 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
Lynbrook, NY

Average sunshine days in September - Lynbrook, NY
  • Average sunshine days in September: 19 days

The month with the most sunshine days is January (23.4 days).
The month with the least sunshine days is June (14.9 days).

Average UV index in September
Lynbrook, NY

Average UV index in September - Lynbrook, 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
Lynbrook, NY

Average cloud cover in September - Lynbrook, NY
  • Average cloud cover in September: 32

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 27).

Average visibility in September
Lynbrook, NY

Average visibility in September - Lynbrook, 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).

Lynbrook, New York, USA

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