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
Dayton observes a small decrease in the average high-temperature with the arrival of September, falling from August's warm 75.6°F (24.2°C) to a pleasant 70°F (21.1°C). Dayton's nighttime temperature in September falls to an average of 53.1°F (11.7°C).Humidity
April, May, August and September, with an average relative humidity of 80%, are the least humid months.Rainfall
The month with the least rainfall in Dayton is September, when the rain falls for 12.3 days and typically collects 1.1" (28mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September is 12h and 28min.On the first day of September in Dayton, sunrise is at 6:41 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:58 pm EDT.
Sunshine
In September, the average sunshine in Dayton is 8.8h.UV index
The average daily maximum UV index in September in Dayton, New York, is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum daily UV index of 3 during September morphs into the following directions:
Take necessary precautions - Suggestions to elude sunburn are provided. Direct Sun exposure should be minimized especially during midday when radiation is most intense. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What is the temperature in September in Dayton?
What is the least humid month in Dayton?
What is the average humidity in September in Dayton?
What is the driest month in Dayton?
How many days does it rain in September in Dayton?
When it does not snow in Dayton?
Does it snow in Dayton in September?
How many hours of daylight does Dayton have in September?
When is the sunrise / sunset in September in Dayton?
How many hours of sunshine does Dayton have in September?
How high is the UV index in September in Dayton?
Average temperature in September
Dayton, NY
- Average high temperature in September: 70°F
The warmest month (with the highest average high temperature) is July (76.6°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in September: 53.1°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (17.8°F).
Average pressure in September
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
Dayton, NY
- Average wind speed in September: 7.4mph
The windiest month (with the highest average wind speed) is January (11.6mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in September
Dayton, NY
- Average humidity in September: 80%
The month with the highest relative humidity is February (88%).
The months with the lowest relative humidity are April, May, August and September (80%).
Average rainfall in September
Dayton, NY
- Average rainfall in September: 1.1"
The wettest month (with the highest rainfall) is July (1.93").
The driest month (with the least rainfall) is September (1.1").
Average rainfall days in September
Dayton, NY
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is October (16.6 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in September
Dayton, NY
- Average snowfall in September: 0"
The months with the highest snowfall are January and December (3.54").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Dayton, NY
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
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 5min
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
Dayton, NY
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is September (14.5 days).
The month with the least sunshine days is January (8.2 days).
Average UV index in September
Dayton, 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
Dayton, NY
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 78).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Dayton, NY
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Dayton, New York, USA
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