September weather forecast
South Cairo, NY

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Weather in September

The first month of the autumn, September, is still a pleasant month in South Cairo, New York, with an average temperature ranging between min 51.4°F (10.8°C) and max 71.4°F (21.9°C).

Temperature

The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a moderately hot 78.4°F (25.8°C) in August to a pleasant 71.4°F (21.9°C). South Cairo in September anticipates an average nighttime temperature of 51.4°F (10.8°C).

Humidity

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

Rainfall

The month with the least rainfall in South Cairo is September, when the rain falls for 12.5 days and typically collects 1.97" (50mm) of precipitation.

Snowfall

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

Daylight

In September, the average length of the day is 12h and 28min.
On the first day of September in South Cairo, 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.

Sunshine

In September, the average sunshine is 9.1h.

UV index

The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: During September, 3 as the daily maximum UV index converts into the following advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Updated: Aug 29, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for South Cairo in September?

South Cairo in September has an average high-temperature of 71.4°F (21.9°C) and an average low-temperature of 51.4°F (10.8°C).

What is the average humidity in September?

The average relative humidity in September is 79%.

What is the driest month in South Cairo?

The month with the least rainfall is September, when the rain falls for 12.5 days and typically collects 1.97" (50mm) of precipitation.

How much does it rain in September?

In South Cairo, in September, during 12.5 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 South Cairo, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September?

The average day length in September is 12h and 28min.

When is the sunrise / sunset in September in South Cairo?

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

How many hours of sunshine does South Cairo have in September?

The average sunshine duration in September is 9.1h.

What is the UV index reading in September?

The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to the Sun's 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
South Cairo, NY

Average temperature in September - South Cairo, NY
  • Average high temperature in September: 71.4°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (29.3°F).

  • Average low temperature in September: 51.4°F

The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).

Average pressure in September
South Cairo, NY

Average pressure in September - South Cairo, 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 (29.93"Hg).

Average wind speed in September
South Cairo, NY

Average wind speed in September - South Cairo, NY
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in September
South Cairo, NY

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

The months with the highest relative humidity are February and December (83%).
The months with the lowest relative humidity are April, June and July (76%).

Average rainfall in September
South Cairo, NY

Average rainfall in September - South Cairo, NY
  • Average rainfall in September: 1.97"

The wettest month (with the highest rainfall) is July (3.46").
The driest month (with the least rainfall) is September (1.97").

Average rainfall days in September
South Cairo, NY

Average rainfall days in September - South Cairo, NY
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is February (10 days).

Average snowfall in September
South Cairo, NY

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

The month with the highest snowfall is February (11.02").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in September
South Cairo, NY

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

The month with the highest number of snowfall days is February (15.8 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 Cairo, NY

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

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).

  • Average sunshine in September: 9h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).

Average sunshine days in September
South Cairo, NY

Average sunshine days in September - South Cairo, NY
  • Average sunshine days in September: 14.6 days

The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is April (9.8 days).

Average UV index in September
South Cairo, NY

Average UV index in September - South Cairo, 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, March, October, November and December (UV index 2).

Average cloud cover in September
South Cairo, NY

Average cloud cover in September - South Cairo, NY
  • Average cloud cover in September: 35

The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is July (Cloud cover 33).

Average visibility in September
South Cairo, NY

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

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

South Cairo, New York, USA

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