September weather forecastMichigan City, IN
September
Weather in September
September brings the beginning of autumn to Michigan City, Indiana, with a noticeable drop in temperatures. The weather remains relatively warm at the beginning of the month before gradually cooling down. Another notable weather pattern this month is a drop in rainfall to 2.2" (56mm), which marks a transition towards the drier upcoming seasons. The number of daylight hours begins to recede, signaling a shift from the long summer days. Regardless, it is an ideal time to enjoy the outdoors with the comfortable autumn weather.Temperature
The transition into September notes an average high-temperature of a pleasant 71.6°F (22°C), revealing a mild distinction from the 76.6°F (24.8°C) in August. Throughout September, Michigan City records an average temperature of 59°F (15°C) at night.Humidity
In Michigan City, the average relative humidity in September is 78%.Rainfall
In Michigan City, in September, during 13.5 rainfall days, 2.2" (56mm) of precipitation is typically accumulated. Throughout the year, there are 159.1 rainfall days, and 27.13" (689mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 6:14 am and sunset at 7:20 pm. On the last day of September, in Michigan City, sunrise is at 6:44 am and sunset at 6:30 pm CDT.
Sunshine
In September, the average sunshine is 9h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 4 in September translates into the following recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Minimize direct exposure to the Sun during midday when its radiation is at its peak. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Michigan City, IN
- 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
Michigan City, IN
- 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
Michigan City, IN
- 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
Michigan City, IN
- 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
Michigan City, IN
- 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
Michigan City, IN
- 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
Michigan City, IN
- 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
Michigan City, IN
- 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
Michigan City, IN
- 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
Michigan City, IN
- 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
Michigan City, IN
- 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
Michigan City, IN
- 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
Michigan City, IN
- 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).
