December weather forecastPort Austin, MI
December
Weather in December
The first month of the winter, December, is also an icy month in Port Austin, Michigan, with an average temperature fluctuating between 28.8°F (-1.8°C) and 34°F (1.1°C).Temperature
In December, the meteorological conditions alter, with the average high-temperature shifting from a chilly 43.5°F (6.4°C) in November to a cold 34°F (1.1°C). Port Austin's nighttime temperatures in December reveal a minimal variation from the daytime highs, averaging at a freezing cold 28.8°F (-1.8°C).Humidity
In December, the average relative humidity is 80%.Rainfall
In Port Austin, in December, it is raining for 6.8 days, with typically 1.06" (27mm) of accumulated precipitation. In Port Austin, during the entire year, the rain falls for 135.6 days and collects up to 21.18" (538mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Port Austin, in December, during 10 snowfall days, 1.06" (27mm) of snow is typically accumulated. Throughout the year, there are 51.1 snowfall days, and 9.49" (241mm) of snow is accumulated.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year in Port Austin.On the first day of December in Port Austin, sunrise is at 7:47 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 8:06 am and sunset at 5:03 pm EST.
Sunshine
In Port Austin, the average sunshine in December is 2.7h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 1 during December translates into the following directions:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Caution! The reflection of snow can nearly 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
Port Austin, MI
- Average high temperature in December: 34°F
The warmest month (with the highest average high temperature) is August (72°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in December: 28.8°F
The month with the highest average low temperature is August (64.9°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in December
Port Austin, MI
- Average pressure in December: 30.05"Hg
The month with the highest atmospheric pressure is March (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Port Austin, MI
- Average wind speed in December: 15.9mph
The windiest month (with the highest average wind speed) is December (15.9mph).
The calmest month (with the lowest average wind speed) is July (9.1mph).
Average humidity in December
Port Austin, MI
- Average humidity in December: 80%
The months with the highest relative humidity are January and February (83%).
The months with the lowest relative humidity are September, October and November (77%).
Average rainfall in December
Port Austin, MI
- Average rainfall in December: 1.06"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is February (0.87").
Average rainfall days in December
Port Austin, MI
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is August (16.1 days).
The month with the least rainy days is February (3.7 days).
Average snowfall in December
Port Austin, MI
- Average snowfall in December: 1.06"
The month with the highest snowfall is January (3.19").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Port Austin, MI
- Average snowfall days in December: 10 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Port Austin, MI
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 2h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 0min).
Average sunshine days in December
Port Austin, MI
- Average sunshine days in December: 11.6 days
The month with the most sunshine days is June (14.9 days).
The month with the least sunshine days is February (10.8 days).
Average UV index in December
Port Austin, MI
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Port Austin, MI
- Average cloud cover in December: 74
The month with the most cloud cover is January (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Port Austin, MI
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





