September weather forecastBicknell, IN
September
Weather in September
September, the first month of the autumn in Bicknell, is also a moderately hot month, with an average temperature fluctuating between 59.9°F (15.5°C) and 78.6°F (25.9°C).Temperature
Bicknell records a slight change with September's average high-temperatures adjusting to a still warm 78.6°F (25.9°C) from August's 83.3°F (28.5°C). During the month of September, an average temperature of 59.9°F (15.5°C) is noted during the nights.Humidity
In September, the average relative humidity is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 8.4 days and accumulates 0.43" (11mm) of precipitation.Snowfall
April 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 7:18 am and sunset at 8:19 pm. On the last day of September, sunrise is at 7:44 am and sunset at 7:33 pm EDT.
Sunshine
The average sunshine in September in Bicknell, Indiana, is 8.6h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: An average maximum UV index of 5 in September leads to these recommendations:
Exercise prevention - Warding off sunburn is urged. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bicknell, IN
- Average high temperature in September: 78.6°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is July (66.9°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in September
Bicknell, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Bicknell, IN
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is February (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in September
Bicknell, IN
- Average humidity in September: 75%
The months with the highest relative humidity are May and July (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in September
Bicknell, IN
- Average rainfall in September: 0.43"
The wettest month (with the highest rainfall) is April (1.22").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in September
Bicknell, IN
- Average rainfall days in September: 8.4 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is January (5.8 days).
Average snowfall in September
Bicknell, IN
- Average snowfall in September: 0"
The month with the highest snowfall is March (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Bicknell, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Bicknell, IN
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 8h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 30min).
Average sunshine days in September
Bicknell, IN
- Average sunshine days in September: 19.5 days
The month with the most sunshine days is January (22.5 days).
The month with the least sunshine days is May (14.3 days).
Average UV index in September
Bicknell, 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
Bicknell, IN
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Bicknell, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





