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 sea temperature 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
The shift from November to December involves a decrease in the average high-temperature, dropping from a chilly 45.3°F (7.4°C) to a wintry 34.7°F (1.5°C). In December, Port Huron's nights cool slightly to a consistent average temperature of 26.6°F (-3°C).Humidity
In Port Huron, the average relative humidity in December is 82%.Rainfall
In Port Huron, during December, the rain falls for 9.2 days and regularly aggregates up to 1.14" (29mm) of precipitation. In Port Huron, during the entire year, the rain falls for 140.4 days and collects up to 19.41" (493mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Port Huron, Michigan. In Port Huron, in December, snow falls for 12.1 days, with typically accumulated 1.93" (49mm) of snow. In Port Huron, during the entire year, snow falls for 55.2 days and aggregates up to 12.28" (312mm) of snow.Ocean temperature
In December, the average ocean temperature is 40.6°F (4.8°C).Note: In water-based activities like swimming, this poses significant life risks. The cold water results in agonizing discomfort and quick hyperventilation. A specialized swimsuit is crucial to reduce the potential thermal damage.
Daylight
December has the shortest days of the year in Port Huron, Michigan, with an average of 9h and 6min of daylight.On the first day of December in Port Huron, sunrise is at 7:41 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 8:00 am and sunset at 5:05 pm EST.
Sunshine
The average sunshine in December in Port Huron is 3.2h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: The average daily UV index of 1 in December transforms into the following instructions:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Port Huron?
What is the average humidity in December in Port Huron?
How much does it rain in Port Huron in December?
How much does it snow in Port Huron in December?
What is the ocean temperature in December in Port Huron?
What is the month with the shortest days in Port Huron?
How many hours of daylight does Port Huron have in December?
When is the sunrise / sunset in December in Port Huron?
How long on average sun shines in December in Port Huron?
When is the lowest UV index in Port Huron?
How high is the UV index in December in Port Huron?
Average temperature in December
Port Huron, MI
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in December
Port Huron, 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 Huron, MI
- Average wind speed in December: 10.9mph
The windiest month (with the highest average wind speed) is January (11.3mph).
The calmest month (with the lowest average wind speed) is July (6.8mph).
Average humidity in December
Port Huron, MI
- Average humidity in December: 82%
The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are April and May (76%).
Average rainfall in December
Port Huron, MI
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is May (2.13").
The driest month (with the least rainfall) is February (1.1").
Average rainfall days in December
Port Huron, MI
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is February (5.7 days).
Average snowfall in December
Port Huron, MI
- Average snowfall in December: 1.93"
The month with the highest snowfall is February (3.9").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Port Huron, MI
- Average snowfall days in December: 12.1 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
Port Huron, MI
- Average sea temperature in December: 40.6°F
The best month for swimming (with the highest average sea temperature) is August (73.7°F).
The coldest month (with the lowest average sea temperature) is February (32.4°F).
Average daylight in December /
Average sunshine in December
Port Huron, MI
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 3h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Port Huron, MI
- Average sunshine days in December: 12.5 days
The month with the most sunshine days is November (15.2 days).
The month with the least sunshine days is February (11.3 days).
Average UV index in December
Port Huron, MI
- Average UV index in December: 1
The months with the highest UV index are July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Port Huron, MI
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in December
Port Huron, 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).
Port Huron, Michigan, USA
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