December weather forecastAlpena, MI
December
Weather in December
Winter solidifies its presence in Alpena during December as low temperatures descend to 31.8°F (-0.1°C). The consequential snowfall of 2.52" (64mm) blankets the city in pure white. Despite the limited hours of sunshine and increased cloud cover, the city transforms into a picturesque winter escape. The heightened winds intensify the cold, while the sea temperature continues to plummet. The December weather in Alpena culminates in a wintery mix, marking the year's end with crisp, frigid weather.Temperature
With the onset of December, Alpena experiences a modest temperature adjustment, with the average high-temperature receding from a cold 42.3°F (5.7°C) in November to a subzero cold 31.8°F (-0.1°C). Alpena's nighttime temperature in December shows a minor descent, with a steady average of 25.3°F (-3.7°C).Humidity
In December, the average relative humidity in Alpena, Michigan, is 82%.Rainfall
In Alpena, in December, it is raining for 8.4 days, with typically 0.94" (24mm) of accumulated precipitation. Throughout the year, there are 119.4 rainfall days, and 13.9" (353mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 16.5 days. Throughout December, 2.52" (64mm) of snow is accumulated. Throughout the year, in Alpena, Michigan, there are 82.7 snowfall days, and 14.61" (371mm) of snow is accumulated.Ocean temperature
In Alpena, the average seawater temperature in December is 39.2°F (4°C).Note: In swimming situations, the extreme cold and danger can lead to fatality. Without the protection of insulated waterproof gear, hypothermia takes effect quickly.
Daylight
The month with the shortest days is December, with an average of 8h and 48min of daylight.On the first day of December, sunrise is at 7:52 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 8:12 am and sunset at 5:02 pm EST.
Sunshine
In Alpena, Michigan, the average sunshine in December is 2.4h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Alpena. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A daily high UV index of 1 in December leads to these guidelines:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Alpena, MI
- Average high temperature in December: 31.8°F
The warmest month (with the highest average high temperature) is July (74.1°F).
The month with the lowest average high temperature is January (25.9°F).
- Average low temperature in December: 25.3°F
The month with the highest average low temperature is August (60.3°F).
The coldest months (with the lowest average low temperature) are January and February (18°F).
Average pressure in December
Alpena, 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
Alpena, MI
- Average wind speed in December: 11.1mph
The windiest months (with the highest average wind speed) are January and December (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in December
Alpena, MI
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is May (73%).
Average rainfall in December
Alpena, MI
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is February (0.71").
Average rainfall days in December
Alpena, MI
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is October (14.3 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in December
Alpena, MI
- Average snowfall in December: 2.52"
The month with the highest snowfall is January (3.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Alpena, MI
- Average snowfall days in December: 16.5 days
The month with the highest number of snowfall days is January (20.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Alpena, MI
- Average sea temperature in December: 39°F
The best month for swimming (with the highest average sea temperature) is August (64°F).
The coldest months (with the lowest average sea temperature) are February, March and April (36°F).
Average daylight in December /
Average sunshine in December
Alpena, 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 24min
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 48min).
Average sunshine days in December
Alpena, MI
- Average sunshine days in December: 10.7 days
The month with the most sunshine days is May (17.8 days).
The month with the least sunshine days is January (8.4 days).
Average UV index in December
Alpena, 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
Alpena, MI
- Average cloud cover in December: 75
The month with the most cloud cover is January (Cloud cover 80).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Alpena, MI
- Average visibility in December: 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).
