Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
A subtle change in temperatures is noted as August gives way to September, with average highs reducing from a moderately hot 74.8°F (23.8°C) to a pleasant 69.4°F (20.8°C). In September, South Dayton records an average nighttime temperature of 53.6°F (12°C).Humidity
With an average relative humidity of 80%, September is the least humid month in South Dayton.Rainfall
In South Dayton, in September, it is raining for 16.9 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, in South Dayton, there are 170.3 rainfall days, and 32.36" (822mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in South Dayton.Daylight
The average length of the day in September in South Dayton is 12h and 28min.On the first day of the month, sunrise is at 6:42 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:13 am and sunset at 6:58 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
In September, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: The daily maximum UV index of 3 in September interprets into the following advice:
Take heed. Individuals of lighter complexion can be burned in less than half an hour. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Frequently asked questions
What is the temperature in September in South Dayton?
What is the least humid month in South Dayton?
What is the average humidity in September in South Dayton?
How many days does it rain in September in South Dayton?
When it does not snow in South Dayton?
Does it snow in South Dayton in September?
How many hours of daylight does South Dayton have in September?
What time are sunrise and sunset in September in South Dayton?
How many hours of sunshine does South Dayton have in September?
How high is the UV index in September in South Dayton?
Average temperature in September
South Dayton, NY
- Average high temperature in September: 69.4°F
The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in September: 53.6°F
The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (18°F).
Average pressure in September
South Dayton, 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
South Dayton, NY
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is January (11.5mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
South Dayton, NY
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (88%).
The month with the lowest relative humidity is September (80%).
Average rainfall in September
South Dayton, NY
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is May (3.62").
The driest month (with the least rainfall) is January (1.81").
Average rainfall days in September
South Dayton, NY
- Average rainfall days in September: 16.9 days
The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in September
South Dayton, NY
- Average snowfall in September: 0"
The month with the highest snowfall is November (5.79").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
South Dayton, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.5 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 Dayton, 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: 8h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in September
South Dayton, NY
- Average sunshine days in September: 10.5 days
The month with the most sunshine days is March (14 days).
The month with the least sunshine days is May (8.4 days).
Average UV index in September
South Dayton, 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, February and December (UV index 1).
Average cloud cover in September
South Dayton, NY
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 77).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
South Dayton, NY
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and March (5mi).
South Dayton, New York, USA
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