September weather forecastMichiana, MI
September
Weather in September
September, the first month of the autumn in Michiana, is still a pleasant month, with an average temperature varying between 71.6°F (22°C) and 59°F (15°C).Temperature
As Michiana welcomes September, the average high-temperature stabilizes at a pleasant 71.6°F (22°C), showing little deviation from August's 76.6°F (24.8°C). During the month of September, Michiana experiences a steady low-temperature average of 59°F (15°C).Humidity
In Michiana, the average relative humidity in September is 78%.Rainfall
In September, the rain falls for 13.5 days. Throughout September, 2.2" (56mm) of precipitation is accumulated. Throughout the year, there are 159.1 rainfall days, and 27.13" (689mm) of precipitation is accumulated.Snowfall
In Michiana, Michigan, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 28min.On the first day of September, sunrise is at 7:13 am and sunset at 8:20 pm. On the last day of the month, sunrise is at 7:43 am and sunset at 7:30 pm EDT.
Sunshine
In September, the average sunshine is 9h.UV index
In Michiana, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: A daily high UV index of 4 in September leads to these guidelines:
Guard yourself - An obligation to protect skin and eyes from harm exists. To avoid the Sun's strongest rays, limit exposure around the mid-day period. 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
Michiana, MI
- Average high temperature in September: 71.6°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (30.2°F).
- Average low temperature in September: 59°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure in September
Michiana, MI
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January and November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Michiana, MI
- Average wind speed in September: 9mph
The windiest month (with the highest average wind speed) is January (12.4mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in September
Michiana, MI
- Average humidity in September: 78%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in September
Michiana, MI
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is June (3.7").
The driest month (with the least rainfall) is February (1.3").
Average rainfall days in September
Michiana, MI
- Average rainfall days in September: 13.5 days
The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in September
Michiana, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (3.15").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Michiana, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.5 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
Michiana, 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 12min).
- Average sunshine in September: 9h and 0min
The months with the most sunshine are July and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Michiana, MI
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is November (13.9 days).
The month with the least sunshine days is January (9.1 days).
Average UV index in September
Michiana, MI
- 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
Michiana, MI
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Michiana, MI
- Average visibility in September: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).





