September weather forecastBig Prairie, OH
September
Weather in September
The first month of the autumn, September, is still a warm month in Big Prairie, Ohio, with an average temperature fluctuating between 54.5°F (12.5°C) and 74.3°F (23.5°C).Temperature
September brings a minor shift in the average high-temperature, adjusting from 79.7°F (26.5°C) in August to a still warm 74.3°F (23.5°C). Throughout September, Big Prairie experiences a low-temperature average of 54.5°F (12.5°C).Humidity
In Big Prairie, Ohio, the average relative humidity in September is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 14.5 days and accumulates 1.81" (46mm) of precipitation.Snowfall
In Big Prairie, snow does not fall in June through September.Daylight
In Big Prairie, the average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 6:56 am and sunset at 8:00 pm. On the last day of September, sunrise is at 7:24 am and sunset at 7:11 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 value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, an average UV index of 4 transforms into the following instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Big Prairie, OH
- Average high temperature in September: 74.3°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in September: 54.5°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in September
Big Prairie, OH
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Big Prairie, OH
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is January (9.1mph).
The calmest month (with the lowest average wind speed) is July (5.3mph).
Average humidity in September
Big Prairie, OH
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and November (78%).
Average rainfall in September
Big Prairie, OH
- Average rainfall in September: 1.81"
The wettest month (with the highest rainfall) is April (3.15").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in September
Big Prairie, OH
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is May (19.1 days).
The month with the least rainy days is January (9.2 days).
Average snowfall in September
Big Prairie, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.88").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Big Prairie, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Big Prairie, OH
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Big Prairie, OH
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is November (13.7 days).
The month with the least sunshine days is February (8.4 days).
Average UV index in September
Big Prairie, OH
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Big Prairie, OH
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Big Prairie, OH
- Average visibility in September: 5mi
The months with the highest visibility are April, June, October and November (6mi).
The months with the lowest visibility are January, February, March, May, July, August, September and December (5mi).





