September weather forecastBluffton, IN
September
Weather in September
September, the first month of the autumn in Bluffton, is still a warm month, with an average temperature varying between 55.8°F (13.2°C) and 74.1°F (23.4°C).Temperature
September's advent notes a subtle adjustment in average high-temperature to a still moderately hot 74.1°F (23.4°C) from August. The low-temperature average for Bluffton during September stands at a refreshing 55.8°F (13.2°C).Humidity
In September, the average relative humidity is 79%.Rainfall
In Bluffton, in September, it is raining for 9.2 days, with typically 0.59" (15mm) of accumulated precipitation. In Bluffton, during the entire year, the rain falls for 111.9 days and collects up to 9.65" (245mm) of precipitation.Snowfall
May through September are months without snowfall in Bluffton, Indiana.Daylight
In September, the average length of the day in Bluffton is 12h and 27min.On the first day of the month, sunrise is at 7:08 am and sunset at 8:12 pm. On the last day of September, in Bluffton, sunrise is at 7:36 am and sunset at 7:23 pm EDT.
Sunshine
In September, the average sunshine is 8h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 4 during September translates into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bluffton, 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 (31.1°F).
- Average low temperature in September: 55.8°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in September
Bluffton, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Bluffton, IN
- Average wind speed in September: 6.9mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
Bluffton, IN
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Bluffton, IN
- Average rainfall in September: 0.59"
The wettest month (with the highest rainfall) is May (1.22").
The driest months (with the least rainfall) are February and November (0.51").
Average rainfall days in September
Bluffton, IN
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in September
Bluffton, IN
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Bluffton, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.4 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
Bluffton, IN
- Average daylight in September: 12h and 30min
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 12min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in September
Bluffton, IN
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is May (13.1 days).
Average UV index in September
Bluffton, 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
Bluffton, IN
- Average cloud cover in September: 35
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 32).
Average visibility in September
Bluffton, 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).
