September weather forecastDelta, OH
September
Weather in September
The first month of the autumn, September, is still a warm month in Delta, Ohio, with an average temperature varying between 73.8°F (23.2°C) and 55.6°F (13.1°C).Temperature
With the onset of September, the average high-temperature stands at a still moderately hot 73.8°F (23.2°C), closely aligned with August's 78.4°F (25.8°C). Delta anticipates an average minimum temperature of 55.6°F (13.1°C) in the month of September.Humidity
In Delta, the average relative humidity in September is 79%.Rainfall
In Delta, during September, the rain falls for 13.9 days and regularly aggregates up to 1.73" (44mm) of precipitation. Throughout the year, there are 159.2 rainfall days, and 27.13" (689mm) of precipitation is accumulated.Snowfall
In Delta, snow does not fall in June through September.Daylight
In Delta, the average length of the day in September is 12h and 28min.On the first day of the month, sunrise is at 7:02 am and sunset at 8:08 pm. On the last day of September, sunrise is at 7:32 am and sunset at 7:18 pm EDT.
Sunshine
In Delta, the average sunshine in September is 7.9h.UV index
In Delta, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 4 during September translates into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Delta, OH
- Average high temperature in September: 73.8°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (29.8°F).
- Average low temperature in September: 55.6°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in September
Delta, 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
Delta, OH
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
Delta, OH
- Average humidity in September: 79%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April and October (75%).
Average rainfall in September
Delta, OH
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is April (3.15").
The driest month (with the least rainfall) is December (1.46").
Average rainfall days in September
Delta, OH
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in September
Delta, OH
- Average snowfall in September: 0"
The month with the highest snowfall is January (4.49").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Delta, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Delta, 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 54min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in September
Delta, OH
- Average sunshine days in September: 13.9 days
The month with the most sunshine days is October (15.4 days).
The month with the least sunshine days is February (9.7 days).
Average UV index in September
Delta, OH
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Delta, OH
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Delta, OH
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, September, October, November and December (6mi).
The months with the lowest visibility are January, February and August (5mi).
