Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December's arrival comes with a decrease in the average high-temperature, moving from a chilly 43.9°F (6.6°C) in November to an icy 34.3°F (1.3°C). Maintaining close parity with daytime warmth, the average nocturnal temperature in Port Sanilac during December stays at a freezing cold 28.2°F (-2.1°C).Humidity
The average relative humidity in December in Port Sanilac is 81%.Rainfall
In December, in Port Sanilac, the rain falls for 7.5 days. Throughout December, 0.79" (20mm) of precipitation is accumulated. Throughout the year, in Port Sanilac, there are 131.4 rainfall days, and 16.69" (424mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Port Sanilac. In Port Sanilac, during December, snow falls for 10 days and regularly aggregates up to 0.87" (22mm) of snow. In Port Sanilac, Michigan, during the entire year, snow falls for 53.4 days and aggregates up to 6.81" (173mm) of snow.Daylight
December has the shortest days of the year in Port Sanilac, with an average of 9h and 0min of daylight.On the first day of December in Port Sanilac, sunrise is at 7:43 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 5:04 pm EST.
Sunshine
The average sunshine in December is 3.1h.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 of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 1 during December leads to these instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Keep in mind! Snow's reflective quality 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
How cold is it in Port Sanilac in December?
What is the average humidity in December in Port Sanilac?
How many days does it rain in December in Port Sanilac?
How many days does it snow in December in Port Sanilac?
What is the month with the shortest days in Port Sanilac?
What is the average length of the day in December in Port Sanilac?
What time are sunrise and sunset in December in Port Sanilac?
How many hours of sunshine does Port Sanilac have in December?
What is the month with the lowest UV index in Port Sanilac?
How high is the UV index in December in Port Sanilac?
Average temperature in December
Port Sanilac, MI
- Average high temperature in December: 34.3°F
The warmest month (with the highest average high temperature) is August (73°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in December: 28.2°F
The month with the highest average low temperature is August (63.7°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in December
Port Sanilac, 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 (29.93"Hg).
Average wind speed in December
Port Sanilac, MI
- Average wind speed in December: 14.1mph
The windiest month (with the highest average wind speed) is January (14.4mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity in December
Port Sanilac, MI
- Average humidity in December: 81%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are September, October and November (78%).
Average rainfall in December
Port Sanilac, MI
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is February (0.67").
Average rainfall days in December
Port Sanilac, MI
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in December
Port Sanilac, MI
- Average snowfall in December: 0.87"
The month with the highest snowfall is January (1.73").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Port Sanilac, MI
- Average snowfall days in December: 10 days
The month with the highest number of snowfall days is January (12.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Port Sanilac, 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 1min
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 36min).
Average sunshine days in December
Port Sanilac, MI
- Average sunshine days in December: 11.2 days
The month with the most sunshine days is June (15.8 days).
The month with the least sunshine days is February (10.7 days).
Average UV index in December
Port Sanilac, 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 and December (UV index 1).
Average cloud cover in December
Port Sanilac, MI
- Average cloud cover in December: 68
The month with the most cloud cover is January (Cloud cover 73).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Port Sanilac, 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).
Port Sanilac, Michigan, USA
Weather forecast for your location
2. Allow the app to use your location