September weather forecastBryan, OH
September
Weather in September
The first month of the autumn, September, is still a warm month in Bryan, Ohio, with temperature in the range of an average high of 73.4°F (23°C) and an average low of 55.2°F (12.9°C).Temperature
September's onset records an average high-temperature of a still moderately hot 73.4°F (23°C), a near match to August's 78.6°F (25.9°C). September is noted for a mean low-temperature of 55.2°F (12.9°C).Humidity
In September, the average relative humidity is 79%.Rainfall
In Bryan, in September, it is raining for 12.6 days, with typically 1.77" (45mm) of accumulated precipitation. In Bryan, during the entire year, the rain falls for 158.5 days and collects up to 28.07" (713mm) of precipitation.Snowfall
In Bryan, 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, sunrise is at 7:05 am and sunset at 8:10 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 7:21 pm EDT.
Sunshine
The average sunshine in September is 7.8h.UV index
The average daily maximum UV index in September in Bryan is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A daily high UV index of 4 in September leads to these guidelines:
Exercise prevention - Protecting skin and eyes from harm is required. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bryan, OH
- Average high temperature in September: 73.4°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in September: 55.2°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in September
Bryan, OH
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Bryan, OH
- Average wind speed in September: 7mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
Bryan, OH
- Average humidity in September: 79%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is October (75%).
Average rainfall in September
Bryan, OH
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is December (1.54").
Average rainfall days in September
Bryan, OH
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in September
Bryan, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.66").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Bryan, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bryan, OH
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Bryan, OH
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is February (9.5 days).
Average UV index in September
Bryan, OH
- Average UV index in September: 4
The months with the highest UV index are June and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Bryan, OH
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Bryan, OH
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are January, February, August and September (5mi).





