September weather forecast
South Bethlehem, NY

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Weather in September

The first month of the autumn, September, is also an agreeable month in South Bethlehem, New York, with an average temperature ranging between max 71.2°F (21.8°C) and min 51.1°F (10.6°C).

Temperature

The start of September signals a gentle decrease in the average high-temperature, transitioning from a warm 79.3°F (26.3°C) in August to an agreeable 71.2°F (21.8°C). South Bethlehem's average low-temperature in the month of September is recorded at a cool 51.1°F (10.6°C).

Humidity

In South Bethlehem, New York, the average relative humidity in September is 79%.

Rainfall

In South Bethlehem, during September, the rain falls for 11.5 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, there are 153.2 rainfall days, and 30" (762mm) of precipitation is accumulated.

Snowfall

In South Bethlehem, snow does not fall in June through September.

Daylight

In September, the average length of the day in South Bethlehem is 12h and 29min.
On the first day of the month, sunrise is at 6:21 am and sunset at 7:29 pm. On the last day of September, sunrise is at 6:52 am and sunset at 6:38 pm EDT.

Sunshine

In South Bethlehem, the average sunshine in September is 8.9h.

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 unprotected exposure to Sun's UV rays for the average person.
Note: In September, the maximum UV index of 3 suggests these recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.

Frequently asked questions

What are September temperatures?

South Bethlehem in September has an average high-temperature of 71.2°F (21.8°C) and an average low-temperature of 51.1°F (10.6°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines air temperature and relative humidity, in July is appraised at 86°F (30°C).

What is the average humidity in September?

In South Bethlehem, the average relative humidity in September is 79%.

How much does it rain in September?

In South Bethlehem, in September, it is raining for 11.5 days, with typically 2.13" (54mm) of accumulated precipitation.

When it does not snow?

June through September are months without snowfall.

Does it snow in September?

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

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

In South Bethlehem, the average day length in September is 12h and 29min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:21 am and sunset at 7:29 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 6:38 pm EDT.

How long on average sun shines in September?

In South Bethlehem, the average sunshine duration in September is 8.9h.

How high is the UV index in September?

In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium hazard to health from 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 Bethlehem, NY

Average temperature in September - South Bethlehem, NY
  • Average high temperature in September: 71.2°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (29.1°F).

  • Average low temperature in September: 51.1°F

The month with the highest average low temperature is July (59.4°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).

Average pressure in September
South Bethlehem, NY

Average pressure in September - South Bethlehem, NY
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in September
South Bethlehem, NY

Average wind speed in September - South Bethlehem, NY
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is January (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
South Bethlehem, NY

Average humidity in September - South Bethlehem, NY
  • Average humidity in September: 79%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (75%).

Average rainfall in September
South Bethlehem, NY

Average rainfall in September - South Bethlehem, NY
  • Average rainfall in September: 2.13"

The wettest month (with the highest rainfall) is July (3.43").
The driest month (with the least rainfall) is January (1.73").

Average rainfall days in September
South Bethlehem, NY

Average rainfall days in September - South Bethlehem, NY
  • Average rainfall days in September: 11.5 days

The months with the highest number of rainy days are May and July (17.1 days).
The month with the least rainy days is January (7.3 days).

Average snowfall in September
South Bethlehem, NY

Average snowfall in September - South Bethlehem, NY
  • Average snowfall in September: 0"

The month with the highest snowfall is February (5.79").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
South Bethlehem, NY

Average snowfall days in September - South Bethlehem, NY
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (10.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in September / Average sunshine in September - South Bethlehem, 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 5min

The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).

Average sunshine days in September
South Bethlehem, NY

Average sunshine days in September - South Bethlehem, NY
  • Average sunshine days in September: 16.1 days

The month with the most sunshine days is November (18 days).
The month with the least sunshine days is June (11.6 days).

Average UV index in September
South Bethlehem, NY

Average UV index in September - South Bethlehem, NY
  • Average UV index in September: 3

The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).

Average cloud cover in September
South Bethlehem, NY

Average cloud cover in September - South Bethlehem, NY
  • Average cloud cover in September: 36

The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 34).

Average visibility in September
South Bethlehem, NY

Average visibility in September - South Bethlehem, NY
  • Average visibility in September: 5mi

The months with the highest visibility are April, June, November and December (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September and October (5mi).

South Bethlehem, New York, USA

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