September weather forecastManchester, MI
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Manchester, Michigan, with an average temperature ranging between min 54.1°F (12.3°C) and max 72°F (22.2°C).Temperature
September witnesses a gentle descent in average high-temperature, descending from August's moderately hot 77.7°F (25.4°C) to a pleasant 72°F (22.2°C). In Manchester, the nighttime temperature averages to a fresh 54.1°F (12.3°C) during September.Humidity
The average relative humidity in September is 80%.Rainfall
In Manchester, in September, it is raining for 9.1 days, with typically 0.51" (13mm) of accumulated precipitation. Throughout the year, there are 105.3 rainfall days, and 8.78" (223mm) of precipitation is accumulated.Snowfall
In Manchester, snow does not fall in June through October.Daylight
The average length of the day in September is 12h and 28min.On the first day of September in Manchester, sunrise is at 7:02 am and sunset at 8:09 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 7:18 pm EDT.
Sunshine
In Manchester, the average sunshine in September is 7.9h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Manchester, MI
- Average high temperature in September: 72°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in September: 54.1°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in September
Manchester, MI
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Manchester, MI
- Average wind speed in September: 7.1mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.3mph).
Average humidity in September
Manchester, MI
- Average humidity in September: 80%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (77%).
Average rainfall in September
Manchester, MI
- Average rainfall in September: 0.51"
The wettest month (with the highest rainfall) is April (1.06").
The driest months (with the least rainfall) are January and December (0.43").
Average rainfall days in September
Manchester, MI
- Average rainfall days in September: 9.1 days
The month with the highest number of rainy days is May (13 days).
The month with the least rainy days is February (4 days).
Average snowfall in September
Manchester, MI
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.26").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Manchester, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Manchester, 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: 7h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in September
Manchester, MI
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is June (14.6 days).
Average UV index in September
Manchester, MI
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in September
Manchester, MI
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Manchester, MI
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, October, November and December (6mi).
The months with the lowest visibility are August and September (5mi).
