September weather forecastDelton, MI
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Delton, Michigan, with temperature in the range of an average low of 52.9°F (11.6°C) and an average high of 72.1°F (22.3°C).Temperature
Delton observes a small decrease in the average high-temperature with the arrival of September, falling from August's warm 78.1°F (25.6°C) to an agreeable 72.1°F (22.3°C). Delton's average low-temperature for the month of September records at a cool 52.9°F (11.6°C).Humidity
The average relative humidity in September in Delton, Michigan, is 79%.Rainfall
In Delton, in September, during 12 rainfall days, 1.65" (42mm) of precipitation is typically accumulated. In Delton, Michigan, during the entire year, the rain falls for 151 days and collects up to 24.65" (626mm) of precipitation.Snowfall
June through September are months without snowfall in Delton.Daylight
In Delton, the average length of the day in September is 12h and 28min.On the first day of September in Delton, sunrise is at 7:07 am and sunset at 8:15 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 7:24 pm EDT.
Sunshine
In September, the average sunshine in Delton, Michigan, is 8.1h.UV index
In September, the average daily maximum UV index in Delton is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Delton, MI
- Average high temperature in September: 72.1°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in September: 52.9°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in September
Delton, MI
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
Delton, MI
- Average wind speed in September: 7.3mph
The windiest months (with the highest average wind speed) are January, February and April (9.9mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in September
Delton, MI
- Average humidity in September: 79%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Delton, MI
- Average rainfall in September: 1.65"
The wettest month (with the highest rainfall) is May (3.11").
The driest months (with the least rainfall) are February and November (1.46").
Average rainfall days in September
Delton, MI
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (5.8 days).
Average snowfall in September
Delton, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.79").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Delton, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Delton, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in September
Delton, MI
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is January (8.6 days).
Average UV index in September
Delton, MI
- Average UV index in September: 4
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Delton, MI
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in September
Delton, MI
- Average visibility in September: 5mi
The months with the highest visibility are March, April, May, June, July, October and November (6mi).
The month with the lowest visibility is January (4mi).
