September weather forecastBangor, MI
September
Weather in September
September, the first month of the autumn in Bangor, is still a pleasant month, with an average temperature varying between 72.1°F (22.3°C) and 56.3°F (13.5°C).Temperature
The transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a moderately hot 77.5°F (25.3°C) in August to a pleasant 72.1°F (22.3°C). The average nighttime temperature lowers to a moderate 56.3°F (13.5°C) throughout September.Humidity
The average relative humidity in September in Bangor is 78%.Rainfall
In Bangor, Michigan, during September, the rain falls for 14.3 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, there are 157.3 rainfall days, and 30.04" (763mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September in Bangor is 12h and 28min.On the first day of September, sunrise is at 7:10 am and sunset at 8:17 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 7:27 pm EDT.
Sunshine
In September, the average sunshine is 8.4h.UV index
In September, the average daily maximum UV index in Bangor is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bangor, MI
- Average high temperature in September: 72.1°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in September: 56.3°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in September
Bangor, MI
- Average pressure in September: 30.03"Hg
The months with the highest atmospheric pressure are January, March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Bangor, MI
- Average wind speed in September: 8.1mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in September
Bangor, MI
- Average humidity in September: 78%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (76%).
Average rainfall in September
Bangor, MI
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is February (1.65").
Average rainfall days in September
Bangor, MI
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in September
Bangor, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (5.08").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Bangor, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (16.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Bangor, 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 24min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).
Average sunshine days in September
Bangor, MI
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is March (14.7 days).
The month with the least sunshine days is January (8.8 days).
Average UV index in September
Bangor, MI
- Average UV index in September: 4
The months with the highest UV index are June and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Bangor, MI
- Average cloud cover in September: 30
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in September
Bangor, 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).





