September weather forecastThornville, OH
September
Weather in September
The first month of the autumn, September, is still a warm month in Thornville, Ohio, with temperature in the range of an average low of 55.8°F (13.2°C) and an average high of 74.8°F (23.8°C).Temperature
With the onset of September, the average high-temperature subtly recedes from August's 81.1°F (27.3°C) to a still moderately hot 74.8°F (23.8°C). During the month of September, the temperature in Thornville, Ohio, generally drops to a low average of 55.8°F (13.2°C).Humidity
The average relative humidity in September in Thornville is 78%.Rainfall
In Thornville, Ohio, in September, it is raining for 11 days, with typically 0.83" (21mm) of accumulated precipitation. In Thornville, during the entire year, the rain falls for 136.1 days and collects up to 13.03" (331mm) of precipitation.Snowfall
In Thornville, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September in Thornville, sunrise is at 6:58 am and sunset at 8:00 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:13 pm EDT.
Sunshine
The average sunshine in September is 8.1h.UV index
The average daily maximum UV index in September in Thornville is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Thornville, OH
- Average high temperature in September: 74.8°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in September: 55.8°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in September
Thornville, 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 (29.94"Hg).
Average wind speed in September
Thornville, OH
- Average wind speed in September: 6mph
The windiest month (with the highest average wind speed) is January (9.2mph).
The calmest months (with the lowest average wind speed) are July and August (5.4mph).
Average humidity in September
Thornville, OH
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
Thornville, OH
- Average rainfall in September: 0.83"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is December (0.79").
Average rainfall days in September
Thornville, OH
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is May (16.6 days).
The months with the least rainy days are January and February (6.8 days).
Average snowfall in September
Thornville, OH
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.75").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Thornville, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Thornville, OH
- Average daylight in September: 12h and 24min
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 24min).
- Average sunshine in September: 8h and 6min
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 18min).
Average sunshine days in September
Thornville, OH
- Average sunshine days in September: 16.9 days
The month with the most sunshine days is November (20.8 days).
The months with the least sunshine days are May and July (11.3 days).
Average UV index in September
Thornville, 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
Thornville, OH
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Thornville, OH
- Average visibility in September: 5mi
The months with the highest visibility are February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are January, May, July, August and September (5mi).
