September weather forecastOctagon, IN
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Octagon, Indiana, with temperature in the range of an average low of 57°F (13.9°C) and an average high of 75.6°F (24.2°C).Temperature
The advent of September presents an average high-temperature of a still warm 75.6°F (24.2°C), maintaining a close correlation with the preceding month. In Octagon, the average low-temperature during the month of September is a mild 57°F (13.9°C).Humidity
The average relative humidity in September is 78%.Rainfall
In Octagon, in September, during 10.2 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, there are 130.9 rainfall days, and 18.23" (463mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Octagon, the average length of the day in September is 12h and 27min.On the first day of September, sunrise is at 7:15 am and sunset at 8:19 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 7:31 pm EDT.
Sunshine
The average sunshine in September is 8.1h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, the maximum UV index of 5 suggests this advice:
Take precautions - Protection against sun damage is advised. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Octagon, IN
- Average high temperature in September: 75.6°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.1°F).
- Average low temperature in September: 57°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (19.6°F).
Average pressure in September
Octagon, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Octagon, IN
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in September
Octagon, IN
- Average humidity in September: 78%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Octagon, IN
- Average rainfall in September: 1.02"
The wettest month (with the highest rainfall) is May (2.36").
The driest months (with the least rainfall) are February and November (0.94").
Average rainfall days in September
Octagon, IN
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (5.1 days).
Average snowfall in September
Octagon, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Octagon, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Octagon, 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 6min
The month with the most sunshine is June (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Octagon, IN
- Average sunshine days in September: 17.1 days
The month with the most sunshine days is November (21.1 days).
The month with the least sunshine days is July (11.7 days).
Average UV index in September
Octagon, IN
- Average UV index in September: 5
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
Octagon, IN
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are June, August and September (Cloud cover 34).
Average visibility in September
Octagon, 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).
