September weather forecastCarbon, IN
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Carbon, Indiana, with an average temperature varying between 58.1°F (14.5°C) and 76.3°F (24.6°C).Temperature
Carbon experiences an average high-temperature of a still moderately hot 76.3°F (24.6°C) in September, subtly different from August's 81.5°F (27.5°C). Carbon, in the month of September, anticipates a consistent average low-temperature of 58.1°F (14.5°C).Humidity
In September, the average relative humidity is 77%.Rainfall
In Carbon, during September, the rain falls for 11 days and regularly aggregates up to 1.3" (33mm) of precipitation. Throughout the year, in Carbon, Indiana, there are 151.2 rainfall days, and 22.87" (581mm) of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of September, sunrise is at 7:17 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
In September, the average sunshine is 8.5h.UV index
In Carbon, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 5 in September translates into this advice:
Guard yourself - Avoiding sunburn is suggested. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Carbon, IN
- Average high temperature in September: 76.3°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.3°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (22.1°F).
Average pressure in September
Carbon, IN
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Carbon, IN
- Average wind speed in September: 6.6mph
The windiest month (with the highest average wind speed) is February (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (5.9mph).
Average humidity in September
Carbon, IN
- Average humidity in September: 77%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (73%).
Average rainfall in September
Carbon, IN
- Average rainfall in September: 1.3"
The wettest month (with the highest rainfall) is April (2.99").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days in September
Carbon, IN
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (8.3 days).
Average snowfall in September
Carbon, IN
- Average snowfall in September: 0"
The month with the highest snowfall is December (1.81").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Carbon, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.6 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
Carbon, IN
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Carbon, IN
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in September
Carbon, 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
Carbon, IN
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Carbon, 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).





