December weather forecastCopper City, MI
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Copper City, Michigan, with an average temperature varying between 27.7°F (-2.4°C) and 21.4°F (-5.9°C).Temperature
The average high-temperature decreases in December, shifting from a cold 38.1°F (3.4°C) in November to a freezing cold 27.7°F (-2.4°C). A consistent nighttime average temperature of 21.4°F (-5.9°C) is maintained in Copper City during December.Humidity
The average relative humidity in December is 84%.Rainfall
In Copper City, Michigan, during December, the rain falls for 5.5 days and regularly aggregates up to 1.89" (48mm) of precipitation. In Copper City, during the entire year, the rain falls for 120.3 days and collects up to 22.28" (566mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 20.7 days and typically aggregates up to 7.8" (198mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 30min of daylight.On the first day of December, sunrise is at 8:20 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 8:40 am and sunset at 5:13 pm EST.
Sunshine
The average sunshine in December is 1.8h.UV index
The months with the lowest UV index in Copper City are January, February, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: A daily high UV index of 1 in December leads to these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Copper City, MI
- Average high temperature in December: 27.7°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 December: 21.4°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 December
Copper City, MI
- Average pressure in December: 30.03"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 December
Copper City, MI
- Average wind speed in December: 12.6mph
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 December
Copper City, MI
- Average humidity in December: 84%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is May (74%).
Average rainfall in December
Copper City, MI
- Average rainfall in December: 1.89"
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 December
Copper City, MI
- Average rainfall days in December: 5.5 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 December
Copper City, MI
- Average snowfall in December: 7.8"
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 December
Copper City, MI
- Average snowfall days in December: 20.7 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 December /
Average sunshine in December
Copper City, MI
- Average daylight in December: 8h and 30min
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 December: 1h and 48min
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 December
Copper City, MI
- Average sunshine days in December: 6.2 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 December
Copper City, MI
- Average UV index in December: 1
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 December
Copper City, MI
- Average cloud cover in December: 82
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 December
Copper City, MI
- Average visibility in December: 5mi
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).
