September weather forecastSloan, IN
September
Weather in September
September, the first month of the autumn in Sloan, is also a moderately hot month, with an average temperature fluctuating between 76.1°F (24.5°C) and 57.7°F (14.3°C).Temperature
September begins with an average high-temperature of a still moderately hot 76.1°F (24.5°C), reflecting close similarity to the preceding month. In Sloan, an average temperature of 57.7°F (14.3°C) is noted during September nights.Humidity
In Sloan, Indiana, the average relative humidity in September is 77%.Rainfall
The months with the least rainfall are February and September Rain falls for 12.5 days and accumulates 1.38" (35mm) of rain.Snowfall
In Sloan, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 27min.On the first day of the month, sunrise is at 7:18 am and sunset at 8:21 pm. On the last day of September, in Sloan, sunrise is at 7:46 am and sunset at 7:33 pm EDT.
Sunshine
In Sloan, the average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index in Sloan, Indiana, is 5. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 5 in September translates into the following recommendations:
Heed the precautions - It is counselled to guard against solar damage. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. 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
Sloan, IN
- Average high temperature in September: 76.1°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in September: 57.7°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in September
Sloan, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Sloan, IN
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in September
Sloan, IN
- Average humidity in September: 77%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Sloan, IN
- Average rainfall in September: 1.38"
The wettest month (with the highest rainfall) is April (3.23").
The driest months (with the least rainfall) are February and September (1.38").
Average rainfall days in September
Sloan, IN
- Average rainfall days in September: 12.5 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (6.6 days).
Average snowfall in September
Sloan, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Sloan, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.6 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
Sloan, 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 24min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Sloan, IN
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in September
Sloan, IN
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Sloan, IN
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are June, August and September (Cloud cover 32).
Average visibility in September
Sloan, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).





