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
River Rouge observes a minor decrease in the average high-temperature with the arrival of December, falling from November's chilly 45.7°F (7.6°C) to a cold 35.2°F (1.8°C). During the December nights, River Rouge's temperature maintains an average close to the daytime highs, settling at a subzero cold 27.5°F (-2.5°C).Humidity
The average relative humidity in December is 81%.Rainfall
February and December are months with the least rain in River Rouge when the rain falls for 6.8 days and typically aggregates up to 0.55" (14mm) of rain.Snowfall
January through May, November and December are months with snowfall in River Rouge. In River Rouge, during December, snow falls for 9 days and regularly aggregates up to 0.63" (16mm) of snow. In River Rouge, during the entire year, snow falls for 42.9 days and aggregates up to 6.02" (153mm) of snow.Ocean temperature
In River Rouge, the average seawater temperature in December is 38.1°F (3.4°C).Note: Within the context of swimming, this scenario is life-threatening. Instant loss of control over breathing impairs cognitive functions. It is essential to use a specialized swimsuit to mitigate thermal loss.
Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of December in River Rouge, sunrise is at 7:42 am and sunset at 5:01 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 5:10 pm EST.
Sunshine
In December, the average sunshine in River Rouge is 3.7h.UV index
December is the month with the lowest UV index in River Rouge, Michigan, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 1 in December suggests the following recommendations:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
How cold is it in River Rouge in December?
What is the average humidity in December in River Rouge?
What is the driest month in River Rouge?
How many days does it rain in December in River Rouge?
How much does it snow in River Rouge in December?
What is the water temperature in December in River Rouge?
What is the month with the shortest days in River Rouge?
How many hours of daylight does River Rouge have in December?
When is the sunrise / sunset in December in River Rouge?
How many hours of sunshine does River Rouge have in December?
What is the month with the lowest UV index in River Rouge?
What is the UV index reading in December in River Rouge?
Average temperature in December
River Rouge, MI
- Average high temperature in December: 35.2°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (19.4°F).
Average pressure in December
River Rouge, MI
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is November (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
River Rouge, MI
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in December
River Rouge, MI
- Average humidity in December: 81%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in December
River Rouge, MI
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is May (1.65").
The driest months (with the least rainfall) are February and December (0.55").
Average rainfall days in December
River Rouge, MI
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in December
River Rouge, MI
- Average snowfall in December: 0.63"
The month with the highest snowfall is January (1.97").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
River Rouge, MI
- Average snowfall days in December: 9 days
The month with the highest number of snowfall days is January (12.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average sea temperature in December
River Rouge, MI
- Average sea temperature in December: 38.2°F
The best month for swimming (with the highest average sea temperature) is August (75.4°F).
The coldest month (with the lowest average sea temperature) is February (32.7°F).
Average daylight in December /
Average sunshine in December
River Rouge, MI
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 3h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
River Rouge, MI
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is November (18.3 days).
The month with the least sunshine days is May (12.6 days).
Average UV index in December
River Rouge, MI
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
River Rouge, MI
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
River Rouge, 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).
River Rouge, Michigan, USA
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