September weather forecastDelong, IN
September
Weather in September
September, the first month of the autumn in Delong, is still a warm month, with an average temperature fluctuating between 73.4°F (23°C) and 55.6°F (13.1°C).Temperature
Delong's transition into September involves a gentle shift in temperature, receding from a moderately hot 78.8°F (26°C) in August to a still warm 73.4°F (23°C). In Delong, September's nights observe an average temperature dip to a refreshing 55.6°F (13.1°C).Humidity
The average relative humidity in September is 80%.Rainfall
In Delong, in September, during 13.5 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. In Delong, during the entire year, the rain falls for 154.4 days and collects up to 20.59" (523mm) of precipitation.Snowfall
In Delong, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 7:12 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 7:28 pm EDT.
Sunshine
In September, the average sunshine is 8.1h.UV index
In Delong, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. 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
Delong, IN
- Average high temperature in September: 73.4°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in September: 55.6°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in September
Delong, IN
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Delong, IN
- Average wind speed in September: 7mph
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 (6.2mph).
Average humidity in September
Delong, IN
- Average humidity in September: 80%
The months with the highest relative humidity are January, February and July (84%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Delong, IN
- Average rainfall in September: 1.34"
The wettest month (with the highest rainfall) is May (2.83").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in September
Delong, IN
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is January (7.1 days).
Average snowfall in September
Delong, IN
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.87").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Delong, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Delong, IN
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 6min).
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 July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in September
Delong, IN
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is May (10.3 days).
Average UV index in September
Delong, IN
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Delong, IN
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in September
Delong, IN
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
