Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Stony Prairie records an average high-temperature of an agreeable 72.5°F (22.5°C) as September arrives, nearly mirroring the previous month's climate. Stony Prairie observes an average low-temperature of 58.3°F (14.6°C) during September.Humidity
In Stony Prairie, the average relative humidity in September is 78%.Rainfall
In September, the rain falls for 9.6 days. Throughout September, 0.51" (13mm) of precipitation is accumulated. Throughout the year, there are 119 rainfall days, and 8.7" (221mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 6:59 am and sunset at 8:05 pm. On the last day of September, sunrise is at 7:29 am and sunset at 7:15 pm EDT.
Sunshine
In Stony Prairie, the average sunshine in September is 8.1h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Put precautions into practice - Guidance to elude sunburn is provided. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow in Stony Prairie?
Does it snow in September?
How many hours of daylight does Stony Prairie have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Stony Prairie have in September?
How high is the UV index in September?
Average temperature in September
Stony Prairie, OH
- Average high temperature in September: 72.5°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in September: 58.3°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in September
Stony Prairie, 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
Stony Prairie, OH
- Average wind speed in September: 7.7mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in September
Stony Prairie, OH
- Average humidity in September: 78%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in September
Stony Prairie, OH
- Average rainfall in September: 0.51"
The wettest month (with the highest rainfall) is May (1.1").
The driest month (with the least rainfall) is February (0.39").
Average rainfall days in September
Stony Prairie, OH
- Average rainfall days in September: 9.6 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is February (5.5 days).
Average snowfall in September
Stony Prairie, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Stony Prairie, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Stony Prairie, OH
- Average daylight in September: 12h and 3min
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: 8h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Stony Prairie, OH
- Average sunshine days in September: 16 days
The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is June (13 days).
Average UV index in September
Stony Prairie, OH
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Stony Prairie, OH
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in September
Stony Prairie, OH
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Stony Prairie, Ohio, USA
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