September weather forecastAdel, IN
September
Weather in September
The first month of the autumn, September, is still a warm month in Adel, Indiana, with an average temperature varying between 58.1°F (14.5°C) and 76.8°F (24.9°C).Temperature
With the beginning of September, the average high-temperature shows a small decrease, transitioning from a warm 82.2°F (27.9°C) in August to a still moderately hot 76.8°F (24.9°C). September in Adel generally records an average low-temperature of 58.1°F (14.5°C).Humidity
In September, the average relative humidity is 77%.Rainfall
September is the month with the least rainfall. Rain falls for 12.6 days and accumulates 1.54" (39mm) of precipitation.Snowfall
May through September are months without snowfall.Daylight
In Adel, Indiana, the average length of the day in September is 12h and 26min.On the first day of September in Adel, sunrise is at 7:16 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 7:42 am and sunset at 7:30 pm EDT.
Sunshine
In Adel, Indiana, the average sunshine in September is 8.4h.UV index
In Adel, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Undertake precautions - Guarding against sun damage is counselled. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Adel, IN
- Average high temperature in September: 76.8°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in September
Adel, 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
Adel, IN
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is February (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Adel, IN
- Average humidity in September: 77%
The months with the highest relative humidity are May and July (82%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Adel, IN
- Average rainfall in September: 1.54"
The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in September
Adel, IN
- Average rainfall days in September: 12.6 days
The month with the highest number of rainy days is May (18.4 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in September
Adel, IN
- Average snowfall in September: 0"
The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Adel, IN
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (9.1 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
Adel, 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 30min).
- Average sunshine in September: 8h and 24min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The months with the least sunshine are January and December (Average sunshine: 4h and 18min).
Average sunshine days in September
Adel, IN
- Average sunshine days in September: 14.7 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is May (9.8 days).
Average UV index in September
Adel, IN
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in September
Adel, IN
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Adel, IN
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).
