September weather forecastFairborn, OH
September
Weather in September
September, the first month of the autumn in Fairborn, is still a warm month, with temperature in the range of an average high of 74.7°F (23.7°C) and an average low of 56.7°F (13.7°C).Temperature
September's weather displays an average high-temperature of a still warm 74.7°F (23.7°C), slightly varied from August's 79.5°F (26.4°C). During September, Fairborn sees a mean low-temperature of 56.7°F (13.7°C).Humidity
In September, the average relative humidity is 78%.Rainfall
In Fairborn, in September, during 11 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, there are 138.2 rainfall days, and 16.73" (425mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 7:04 am and sunset at 8:06 pm. On the last day of September, in Fairborn, sunrise is at 7:32 am and sunset at 7:19 pm EDT.
Sunshine
The average sunshine in September is 8.2h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Take precautions - Protection against sun damage is advised. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Fairborn, OH
- Average high temperature in September: 74.7°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (32.7°F).
- Average low temperature in September: 56.7°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (21°F).
Average pressure in September
Fairborn, OH
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Fairborn, OH
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in September
Fairborn, OH
- Average humidity in September: 78%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in September
Fairborn, OH
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is May (2.2").
The driest months (with the least rainfall) are February and November (0.98").
Average rainfall days in September
Fairborn, OH
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7 days).
Average snowfall in September
Fairborn, OH
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.3").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Fairborn, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Fairborn, OH
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 12min
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: 3h and 30min).
Average sunshine days in September
Fairborn, OH
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in September
Fairborn, OH
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Fairborn, OH
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Fairborn, OH
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
