December weather forecastBay City, MI
December
Weather in December
December invites winter in all its glory in Bay City with temperatures varying from 24.4°F (-4.2°C) to 32.9°F (0.5°C). As the month progresses, the city is often covered in a blanket of snow, setting the perfect background for Christmas festivities. Despite shorter daylight hours and lesser sunshine, the city sparkles under the holiday season's illuminations. The charm of December in Bay City lies not just in experiencing a classic white Christmas but also the joy of winter festivities that resonate throughout the city during this time.Temperature
The onset of December results in a decrease in the average high-temperature, receding from a frosty 43.9°F (6.6°C) in November to a wintry 32.9°F (0.5°C). Bay City's average temperature during the nights of December is recorded at a freezing cold 24.4°F (-4.2°C).Humidity
In December, the average relative humidity is 83%.Rainfall
In Bay City, Michigan, in December, during 5.9 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. Throughout the year, in Bay City, Michigan, there are 111.7 rainfall days, and 11.65" (296mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In December, in Bay City, it is snowing for 9.2 days. Throughout December, 1.38" (35mm) of snow is accumulated. Throughout the year, there are 46.4 snowfall days, and 7.17" (182mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 7:49 am and sunset at 5:00 pm. On the last day of the month, sunrise is at 8:08 am and sunset at 5:09 pm EST.
Sunshine
In December, the average sunshine is 3.2h.UV index
January, February and December, with an average maximum UV index of 1, are months with the lowest UV index in Bay City. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 1 in December translates into these instructions:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bay City, MI
- Average high temperature in December: 32.9°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 24.4°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in December
Bay City, MI
- Average pressure in December: 30.06"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
Bay City, MI
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in December
Bay City, MI
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (87%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Bay City, MI
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is May (1.65").
The driest month (with the least rainfall) is November (0.55").
Average rainfall days in December
Bay City, MI
- Average rainfall days in December: 5.9 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in December
Bay City, MI
- Average snowfall in December: 1.38"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Bay City, MI
- Average snowfall days in December: 9.2 days
The month with the highest number of snowfall days is February (11.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Bay City, 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: 3h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 2h and 48min).
Average sunshine days in December
Bay City, MI
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is April (13.7 days).
Average UV index in December
Bay City, MI
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in December
Bay City, MI
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Bay City, 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).
