Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September ushers in a minute temperature change, with average high-temperatures reducing from August's pleasant 69.4°F (20.8°C) to a comfortable 63.5°F (17.5°C). Throughout September, the nighttime temperature averages to a cool 52.7°F (11.5°C).Humidity
In Copper City, the average relative humidity in September is 79%.Rainfall
In Copper City, during September, the rain falls for 14.5 days and regularly aggregates up to 1.77" (45mm) of precipitation. Throughout the year, in Copper City, Michigan, there are 120.3 rainfall days, and 22.28" (566mm) of precipitation is accumulated.Snowfall
In Copper City, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 33min.On the first day of September, sunrise is at 7:13 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 7:52 am and sunset at 7:34 pm EDT.
Sunshine
In Copper City, the average sunshine in September is 7.5h.UV index
In Copper City, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The UV index of 4 during September leads to these advisories:
Prioritize safety - Recommendations to avert sunburn are shared. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. 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
What is the average September temperature?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Copper City, MI
- Average high temperature in September: 63.5°F
The warmest month (with the highest average high temperature) is August (69.4°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in September: 52.7°F
The month with the highest average low temperature is August (57.7°F).
The coldest month (with the lowest average low temperature) is January (15.1°F).
Average pressure in September
Copper City, MI
- Average pressure in September: 29.99"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
Copper City, MI
- Average wind speed in September: 9.6mph
The windiest month (with the highest average wind speed) is January (12.7mph).
The calmest month (with the lowest average wind speed) is June (7.7mph).
Average humidity in September
Copper City, MI
- Average humidity in September: 79%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is May (74%).
Average rainfall in September
Copper City, MI
- Average rainfall in September: 1.77"
The wettest month (with the highest rainfall) is October (2.4").
The driest month (with the least rainfall) is February (1.34").
Average rainfall days in September
Copper City, MI
- Average rainfall days in September: 14.5 days
The month with the highest number of rainy days is September (14.5 days).
The month with the least rainy days is January (2.5 days).
Average snowfall in September
Copper City, MI
- Average snowfall in September: 0"
The month with the highest snowfall is December (7.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Copper City, MI
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (23 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Copper City, MI
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 7h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 1h and 30min).
Average sunshine days in September
Copper City, MI
- Average sunshine days in September: 13.7 days
The month with the most sunshine days is July (16.4 days).
The month with the least sunshine days is January (5.3 days).
Average UV index in September
Copper City, MI
- Average UV index in September: 4
The months with the highest UV index are 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
Copper City, MI
- Average cloud cover in September: 38
The month with the most cloud cover is January (Cloud cover 86).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in September
Copper City, MI
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, November and December (5mi).
Copper City, Michigan, USA
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