September weather forecastCopemish, MI
September
Weather in September
September, the first month of the autumn in Copemish, is also an agreeable month, with an average temperature ranging between min 53.1°F (11.7°C) and max 68.9°F (20.5°C).Temperature
The beginning of September brings a slight decrease in the average high-temperature, transitioning from a moderately hot 75.7°F (24.3°C) in August to a pleasant 68.9°F (20.5°C). An average low-temperature of 53.1°F (11.7°C) is common during the nights of September.Humidity
In Copemish, the average relative humidity in September is 78%.Rainfall
In September, in Copemish, Michigan, the rain falls for 10.2 days. Throughout September, 0.94" (24mm) of precipitation is accumulated. Throughout the year, in Copemish, there are 104.2 rainfall days, and 12.72" (323mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall in Copemish.Daylight
The average length of the day in September in Copemish is 12h and 30min.On the first day of the month, sunrise is at 7:07 am and sunset at 8:19 pm. On the last day of September, sunrise is at 7:41 am and sunset at 7:25 pm EDT.
Sunshine
In September, the average sunshine in Copemish is 7.8h.UV index
In Copemish, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum UV index of 3 during September leads to these instructions:
Exercise care. People with light skin might get burns in fewer than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Copemish, MI
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (75.9°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in September: 53.1°F
The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in September
Copemish, MI
- Average pressure in September: 30.02"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
Copemish, MI
- Average wind speed in September: 8.3mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.3mph).
Average humidity in September
Copemish, MI
- Average humidity in September: 78%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April and May (75%).
Average rainfall in September
Copemish, MI
- Average rainfall in September: 0.94"
The wettest months (with the highest rainfall) are May and October (1.38").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in September
Copemish, MI
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is October (12.5 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in September
Copemish, MI
- Average snowfall in September: 0"
The month with the highest snowfall is December (4.06").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Copemish, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (17.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Copemish, MI
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 7h and 48min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 1h and 36min).
Average sunshine days in September
Copemish, MI
- Average sunshine days in September: 17 days
The month with the most sunshine days is September (17 days).
The month with the least sunshine days is February (10.6 days).
Average UV index in September
Copemish, MI
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in September
Copemish, MI
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in September
Copemish, 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).





