September weather forecastBourneville, OH
September
Weather in September
September, the first month of the autumn in Bourneville, is still a warm month, with an average temperature fluctuating between 77.2°F (25.1°C) and 56.5°F (13.6°C).Temperature
In Bourneville, entering September brings a subtle temperature decrement, reducing from August's 82.9°F (28.3°C) to a still moderately hot 77.2°F (25.1°C). The temperature lowers to an average of 56.5°F (13.6°C) during September nights.Humidity
In Bourneville, the average relative humidity in September is 76%.Rainfall
September is the month with the least rainfall. Rain falls for 12.4 days and accumulates 1.54" (39mm) of precipitation.Snowfall
May through October 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 7:01 am and sunset at 8:02 pm. On the last day of September, sunrise is at 7:28 am and sunset at 7:16 pm EDT.
Sunshine
In Bourneville, the average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: In September, a daily UV index of 4 turns into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bourneville, OH
- Average high temperature in September: 77.2°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in September: 56.5°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in September
Bourneville, OH
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Bourneville, OH
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are January and February (8.3mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Bourneville, OH
- Average humidity in September: 76%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is November (75%).
Average rainfall in September
Bourneville, OH
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is May (2.95").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in September
Bourneville, OH
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is November (8.4 days).
Average snowfall in September
Bourneville, OH
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.48").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Bourneville, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.6 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Bourneville, 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 12min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Bourneville, OH
- Average sunshine days in September: 16 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in September
Bourneville, 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
Bourneville, OH
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Bourneville, OH
- Average visibility in September: 5mi
The months with the highest visibility are February, March, April, June, August, October, November and December (6mi).
The months with the lowest visibility are January, May, July and September (5mi).
