September weather forecastBoone Grove, IN
September
Weather in September
September, the first month of the autumn in Boone Grove, is still a warm month, with an average temperature ranging between max 74.1°F (23.4°C) and min 57°F (13.9°C).Temperature
Upon the onset of September, Boone Grove witnesses an average high-temperature of a still warm 74.1°F (23.4°C), showing a close resemblance to the prior month. Boone Grove records a mean low-temperature of 57°F (13.9°C) in September.Humidity
The average relative humidity in September is 78%.Rainfall
In Boone Grove, during September, the rain falls for 12.8 days and regularly aggregates up to 1.34" (34mm) of precipitation. In Boone Grove, during the entire year, the rain falls for 151.5 days and collects up to 21.18" (538mm) of precipitation.Snowfall
In Boone Grove, Indiana, snow does not fall in June through October.Daylight
In September, the average length of the day in Boone Grove is 12h and 28min.On the first day of the month, sunrise is at 6:15 am and sunset at 7:20 pm. On the last day of September, sunrise is at 6:45 am and sunset at 6:31 pm CDT.
Sunshine
In September, the average sunshine in Boone Grove is 8.5h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Take necessary precautions - Protection from skin and eye injury is mandatory. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Boone Grove, IN
- Average high temperature in September: 74.1°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in September: 57°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in September
Boone Grove, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Boone Grove, IN
- Average wind speed in September: 7.2mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
Boone Grove, IN
- Average humidity in September: 78%
The months with the highest relative humidity are February and July (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Boone Grove, IN
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is May (2.87").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in September
Boone Grove, IN
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in September
Boone Grove, IN
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.03").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Boone Grove, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Boone Grove, IN
- Average daylight in September: 12h and 30min
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 30min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Boone Grove, IN
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is November (17.1 days).
The month with the least sunshine days is June (10 days).
Average UV index in September
Boone Grove, IN
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Boone Grove, IN
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Boone Grove, IN
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February and July (5mi).





