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 involves a decrease in temperature, down from a frosty 43.5°F (6.4°C) in November to a cold 32.9°F (0.5°C). An average low-temperature of 26.2°F (-3.2°C), slightly less than the daytime peak, marks the month of December.Humidity
The average relative humidity in December is 82%.Rainfall
In Valley Island, in December, during 9.2 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. Throughout the year, in Valley Island, there are 150.8 rainfall days, and 22.99" (584mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Valley Island, during December, snow falls for 15.4 days and regularly aggregates up to 3.5" (89mm) of snow. Throughout the year, in Valley Island, there are 70.3 snowfall days, and 16.77" (426mm) of snow is accumulated.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year in Valley Island.On the first day of the month, sunrise is at 7:48 am and sunset at 4:57 pm. On the last day of December, in Valley Island, sunrise is at 8:07 am and sunset at 5:06 pm EST.
Sunshine
The average sunshine in December in Valley Island, Michigan, is 3.1h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Valley Island. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 1 during December translates into the following recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. To avoid the Sun's strongest rays, limit exposure around the mid-day period. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
How cold is it in Valley Island in December?
What is the average humidity in December in Valley Island?
How many days does it rain in December in Valley Island?
How many days does it snow in December in Valley Island?
What is the month with the shortest days in Valley Island?
What is the average length of the day in December in Valley Island?
What time are sunrise and sunset in December in Valley Island?
How long on average sun shines in December in Valley Island?
What is the month with the lowest UV index in Valley Island?
What is the UV index reading in December in Valley Island?
Average temperature in December
Valley Island, MI
- Average high temperature in December: 32.9°F
The warmest month (with the highest average high temperature) is July (75.4°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 26.2°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in December
Valley Island, MI
- Average pressure in December: 30.05"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
Valley Island, MI
- Average wind speed in December: 11.9mph
The windiest months (with the highest average wind speed) are January and December (11.9mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in December
Valley Island, MI
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (86%).
The months with the lowest relative humidity are April and May (77%).
Average rainfall in December
Valley Island, MI
- Average rainfall in December: 1.34"
The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is February (1.26").
Average rainfall days in December
Valley Island, MI
- Average rainfall days in December: 9.2 days
The month with the highest number of rainy days is October (16.3 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in December
Valley Island, MI
- Average snowfall in December: 3.5"
The month with the highest snowfall is January (3.9").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Valley Island, MI
- Average snowfall days in December: 15.4 days
The month with the highest number of snowfall days is January (17.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Valley Island, 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 36min).
The month with the least sunshine is January (Average sunshine: 2h and 36min).
Average sunshine days in December
Valley Island, MI
- Average sunshine days in December: 8.7 days
The month with the most sunshine days is September (15 days).
The months with the least sunshine days are February and December (8.7 days).
Average UV index in December
Valley Island, 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 and December (UV index 1).
Average cloud cover in December
Valley Island, MI
- Average cloud cover in December: 68
The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Valley Island, MI
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Valley Island, Michigan, USA
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