September weather forecastRenner, IN
September
Weather in September
The first month of the autumn, September, is still a warm month in Renner, Indiana, with an average temperature ranging between min 56.3°F (13.5°C) and max 74.1°F (23.4°C).Temperature
Renner's shift into September sets the average high-temperature at a still warm 74.1°F (23.4°C), a figure that deviates only slightly from August's 79.3°F (26.3°C). In Renner, the average nighttime temperature during September is a moderate 56.3°F (13.5°C).Humidity
The average relative humidity in September is 79%.Rainfall
In Renner, in September, during 11.6 rainfall days, 1.06" (27mm) of precipitation is typically accumulated. Throughout the year, there are 132.3 rainfall days, and 16.22" (412mm) of precipitation is accumulated.Snowfall
In Renner, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 7:09 am and sunset at 8:13 pm. On the last day of September, sunrise is at 7:37 am and sunset at 7:25 pm EDT.
Sunshine
The average sunshine in September is 8h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 4 during September translates into the following directions:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. To guard against the harmful effects of the Sun, minimize exposure during midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Renner, IN
- Average high temperature in September: 74.1°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 (31.6°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (20.1°F).
Average pressure in September
Renner, IN
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Renner, IN
- Average wind speed in September: 6.9mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
Renner, IN
- Average humidity in September: 79%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Renner, IN
- Average rainfall in September: 1.06"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is November (0.83").
Average rainfall days in September
Renner, IN
- Average rainfall days in September: 11.6 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (5.4 days).
Average snowfall in September
Renner, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Renner, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Renner, IN
- 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 18min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Renner, IN
- Average sunshine days in September: 16 days
The month with the most sunshine days is November (20.2 days).
The month with the least sunshine days is May (10.8 days).
Average UV index in September
Renner, IN
- 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
Renner, IN
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 33).
Average visibility in September
Renner, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).





