September weather forecast
Atlanta, NY

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Weather in September

The first month of the autumn, September, is also an agreeable month in Atlanta, New York, with temperature in the range of an average high of 69.8°F (21°C) and an average low of 49.8°F (9.9°C).

Temperature

The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a moderately hot 75.9°F (24.4°C) in August to an agreeable 69.8°F (21°C). Atlanta, during the month of September, experiences an average low-temperature of 49.8°F (9.9°C).

Humidity

The average relative humidity in September in Atlanta is 81%.

Rainfall

In Atlanta, during September, the rain falls for 14.1 days and regularly aggregates up to 1.73" (44mm) of precipitation. In Atlanta, during the entire year, the rain falls for 153.7 days and collects up to 25.04" (636mm) of precipitation.

Snowfall

June through September are months without snowfall in Atlanta, New York.

Daylight

In Atlanta, the average length of the day in September is 12h and 29min.
On the first day of the month, sunrise is at 6:35 am and sunset at 7:43 pm. On the last day of September, in Atlanta, sunrise is at 7:06 am and sunset at 6:52 pm EDT.

Sunshine

In September, the average sunshine is 8h.

UV index

In September, the average daily maximum UV index in Atlanta is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 3 in September converts into the following recommendations:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Updated: Feb 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are September temperatures in Atlanta?

In Atlanta, 69.8°F (21°C) is the average high-temperature and 49.8°F (9.9°C) is the average low-temperature during September.

What is the average humidity in September in Atlanta?

In September, the average relative humidity is 81%.

How many days does it rain in September in Atlanta?

In Atlanta, in September, during 14.1 rainfall days, 1.73" (44mm) of precipitation is typically accumulated.

When it does not snow in Atlanta?

June through September are months without snowfall in Atlanta, New York.

Does it snow in Atlanta in September?

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

How many hours of daylight does Atlanta have in September?

The average day length in September in Atlanta, New York, is 12h and 29min.

When is the sunrise / sunset in September in Atlanta?

In September, on the first day of the month, sunrise is at 6:35 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 6:52 pm EDT.

How many hours of sunshine does Atlanta have in September?

In Atlanta, the average sunshine duration in September is 8h.

How high is the UV index in September in Atlanta?

In Atlanta, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health risk 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
Atlanta, NY

Average temperature in September - Atlanta, NY
  • Average high temperature in September: 69.8°F

The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (27.5°F).

  • Average low temperature in September: 49.8°F

The month with the highest average low temperature is July (57.4°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).

Average pressure in September
Atlanta, NY

Average pressure in September - Atlanta, 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).

Average wind speed in September
Atlanta, NY

Average wind speed in September - Atlanta, NY
  • Average wind speed in September: 6.5mph

The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).

Average humidity in September
Atlanta, NY

Average humidity in September - Atlanta, NY
  • Average humidity in September: 81%

The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is May (78%).

Average rainfall in September
Atlanta, NY

Average rainfall in September - Atlanta, NY
  • Average rainfall in September: 1.73"

The wettest months (with the highest rainfall) are May and October (2.64").
The driest month (with the least rainfall) is January (1.46").

Average rainfall days in September
Atlanta, NY

Average rainfall days in September - Atlanta, NY
  • Average rainfall days in September: 14.1 days

The months with the highest number of rainy days are May and July (18.3 days).
The month with the least rainy days is February (4.9 days).

Average snowfall in September
Atlanta, NY

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

The month with the highest snowfall is February (6.3").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Atlanta, NY

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

The month with the highest number of snowfall days is January (17.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 8h and 0min

The month with the most sunshine is July (Average sunshine: 9h and 36min).
The months with the least sunshine are January and February (Average sunshine: 2h and 18min).

Average sunshine days in September
Atlanta, NY

Average sunshine days in September - Atlanta, NY
  • Average sunshine days in September: 14.1 days

The month with the most sunshine days is September (14.1 days).
The month with the least sunshine days is February (7.2 days).

Average UV index in September
Atlanta, NY

Average UV index in September - Atlanta, NY
  • Average UV index in September: 3

The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).

Average cloud cover in September
Atlanta, NY

Average cloud cover in September - Atlanta, NY
  • Average cloud cover in September: 45

The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is August (Cloud cover 40).

Average visibility in September
Atlanta, NY

Average visibility in September - Atlanta, NY
  • Average visibility in September: 5mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (5mi).
The month with the lowest visibility is January (4mi).

Atlanta, New York, USA

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