September weather forecast
Au Sable Forks, NY

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Weather in September

September, the first month of the autumn in Au Sable Forks, is still a refreshing month, with an average temperature fluctuating between 67.8°F (19.9°C) and 48°F (8.9°C).

Temperature

In Au Sable Forks, entering September brings a subtle temperature decrement, reducing from August's moderately hot 74.8°F (23.8°C) to an enjoyable 67.8°F (19.9°C). An average low-temperature of 48°F (8.9°C) marks the month of September.

Humidity

The average relative humidity in September is 80%.

Rainfall

September is the month with the least rainfall. Rain falls for 14.5 days and accumulates 1.97" (50mm) of precipitation.

Snowfall

June through September are months without snowfall.

Daylight

In September, the average length of the day is 12h and 30min.
On the first day of the month, sunrise is at 6:18 am and sunset at 7:30 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:36 pm EDT.

Sunshine

The average sunshine in September is 8.7h.

UV index

The average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.
Note: The UV index of 3 in September translates into these instructions:
Heed the precautions - Suggestions to avoid sunburn are made. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Updated: Jun 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in September?

Au Sable Forks in September has an average high-temperature of 67.8°F (19.9°C) and an average low-temperature of 48°F (8.9°C).

What is the average humidity in September?

In September, the average relative humidity is 80%.

What is the driest month?

September is the month with the least rainfall. Rain falls for 14.5 days and accumulates 1.97" (50mm) of precipitation.

How much does it rain in September?

In Au Sable Forks, in September, during 14.5 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

In Au Sable Forks, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September?

In September, the average day length is 12h and 30min.

When is the sunrise / sunset in September in Au Sable Forks?

In September, on the first day of the month, sunrise is at 6:18 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:36 pm EDT.

How long on average sun shines in September?

The average sunshine duration in September in Au Sable Forks is 8.7h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health threat 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
Au Sable Forks, NY

Average temperature in September - Au Sable Forks, NY
  • Average high temperature in September: 67.8°F

The warmest month (with the highest average high temperature) is July (76.8°F).
The month with the lowest average high temperature is January (23.4°F).

  • Average low temperature in September: 48°F

The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (10.9°F).

Average pressure in September
Au Sable Forks, NY

Average pressure in September - Au Sable Forks, NY
  • Average pressure in September: 30.04"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

Average wind speed in September
Au Sable Forks, NY

Average wind speed in September - Au Sable Forks, NY
  • Average wind speed in September: 5.6mph

The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in September
Au Sable Forks, NY

Average humidity in September - Au Sable Forks, NY
  • Average humidity in September: 80%

The month with the highest relative humidity is February (89%).
The month with the lowest relative humidity is May (76%).

Average rainfall in September
Au Sable Forks, NY

Average rainfall in September - Au Sable Forks, NY
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is June (3.39").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in September
Au Sable Forks, NY

Average rainfall days in September - Au Sable Forks, NY
  • Average rainfall days in September: 14.5 days

The month with the highest number of rainy days is June (19.2 days).
The month with the least rainy days is February (8.4 days).

Average snowfall in September
Au Sable Forks, NY

Average snowfall in September - Au Sable Forks, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (12.48").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
Au Sable Forks, NY

Average snowfall days in September - Au Sable Forks, NY
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (21.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in September /
Average sunshine in September
Au Sable Forks, NY

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

The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 0min).

Average sunshine days in September
Au Sable Forks, NY

Average sunshine days in September - Au Sable Forks, NY
  • Average sunshine days in September: 13.5 days

The month with the most sunshine days is September (13.5 days).
The month with the least sunshine days is February (5.6 days).

Average UV index in September
Au Sable Forks, NY

Average UV index in September - Au Sable Forks, NY
  • Average UV index in September: 3

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

Average cloud cover in September
Au Sable Forks, NY

Average cloud cover in September - Au Sable Forks, NY
  • Average cloud cover in September: 37

The month with the most cloud cover is February (Cloud cover 71).
The months with the least cloud cover are July and August (Cloud cover 36).

Average visibility in September
Au Sable Forks, NY

Average visibility in September - Au Sable Forks, NY
  • Average visibility in September: 5mi

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

Au Sable Forks, New York, USA

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