December weather forecastOld Mission, MI
December
Weather in December
The first month of the winter, December, is also an icy month in Old Mission, Michigan, with an average temperature varying between 32°F (0°C) and 25.7°F (-3.5°C).Temperature
The shift from November to December involves a decrease in the average high-temperature, from an icy 41.9°F (5.5°C) to a still cold 32°F (0°C). During December, nights in Old Mission cool slightly to an average low of 25.7°F (-3.5°C).Humidity
The average relative humidity in December is 84%.Rainfall
In Old Mission, during December, the rain falls for 7 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, in Old Mission, there are 136.2 rainfall days, and 24.65" (626mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Old Mission. In December, it is snowing for 18.1 days. Throughout December, 5.35" (136mm) of snow is accumulated. In Old Mission, during the entire year, snow falls for 89.8 days and aggregates up to 28.03" (712mm) of snow.Daylight
December has the shortest days of the year in Old Mission, with an average of 8h and 48min of daylight.On the first day of December, sunrise is at 8:00 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 8:19 am and sunset at 5:10 pm EST.
Sunshine
In Old Mission, the average sunshine in December is 2.2h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 1 during December translates into the following directions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Old Mission, MI
- Average high temperature in December: 32°F
The warmest month (with the highest average high temperature) is August (72.1°F).
The month with the lowest average high temperature is January (25.7°F).
- Average low temperature in December: 25.7°F
The month with the highest average low temperature is August (60.4°F).
The coldest months (with the lowest average low temperature) are January and February (18.9°F).
Average pressure in December
Old Mission, 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
Old Mission, MI
- Average wind speed in December: 12.6mph
The windiest months (with the highest average wind speed) are January, November and December (12.6mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in December
Old Mission, MI
- Average humidity in December: 84%
The month with the highest relative humidity is January (87%).
The months with the lowest relative humidity are April and May (77%).
Average rainfall in December
Old Mission, MI
- Average rainfall in December: 2.13"
The wettest month (with the highest rainfall) is October (2.91").
The driest month (with the least rainfall) is February (1.54").
Average rainfall days in December
Old Mission, MI
- Average rainfall days in December: 7 days
The month with the highest number of rainy days is October (17.9 days).
The month with the least rainy days is February (3.9 days).
Average snowfall in December
Old Mission, MI
- Average snowfall in December: 5.35"
The month with the highest snowfall is January (6.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Old Mission, MI
- Average snowfall days in December: 18.1 days
The month with the highest number of snowfall days is January (21.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Old Mission, MI
- Average daylight in December: 8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 2h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 1h and 42min).
Average sunshine days in December
Old Mission, MI
- Average sunshine days in December: 6.5 days
The month with the most sunshine days is May (14.7 days).
The month with the least sunshine days is January (4.7 days).
Average UV index in December
Old Mission, MI
- Average UV index in December: 1
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 December
Old Mission, MI
- Average cloud cover in December: 79
The month with the most cloud cover is January (Cloud cover 83).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Old Mission, MI
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
