September weather forecastSuccess, OH
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Success, Ohio, with an average temperature ranging between max 79°F (26.1°C) and min 57.7°F (14.3°C).Temperature
With the onset of September, the average high-temperature subtly recedes from August's warm 85.6°F (29.8°C) to a still moderately hot 79°F (26.1°C). In Success, September nights witness a steady temperature drop to a mild 57.7°F (14.3°C).Humidity
In Success, the average relative humidity in September is 75%.Rainfall
The month with the least rainfall is September, when the rain falls for 13.1 days and typically collects 1.97" (50mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
The average length of the day in September is 12h and 26min.On the first day of the month, sunrise is at 6:56 am and sunset at 7:57 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:11 pm EDT.
Sunshine
In Success, the average sunshine in September is 8.1h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Success, OH
- Average high temperature in September: 79°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in September: 57.7°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (23.9°F).
Average pressure in September
Success, OH
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Success, OH
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is February (7mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in September
Success, OH
- Average humidity in September: 75%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Success, OH
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in September
Success, OH
- Average rainfall days in September: 13.1 days
The month with the highest number of rainy days is May (19.4 days).
The month with the least rainy days is November (10.7 days).
Average snowfall in September
Success, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.66").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Success, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Success, 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 30min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Success, OH
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is November (17.6 days).
The month with the least sunshine days is May (9.4 days).
Average UV index in September
Success, OH
- Average UV index in September: 4
The months with the highest UV index are May, 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
Success, OH
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Success, OH
- Average visibility in September: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).





