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
The move into December indicates a reduction in the average high-temperature, down from November's frosty 45.3°F (7.4°C) to an icy 34.3°F (1.3°C). During December, the nighttime temperature averages of 25°F (-3.9°C).Humidity
In December, the average relative humidity is 84%.Rainfall
December is the month with the least rainfall. Rain falls for 9.9 days and accumulates 1.46" (37mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Chelsea, during December, snow falls for 12.3 days and regularly aggregates up to 2.95" (75mm) of snow. Throughout the year, in Chelsea, there are 56.8 snowfall days, and 18.58" (472mm) of snow is accumulated.Daylight
The month with the shortest days in Chelsea is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:46 am and sunset at 5:04 pm. On the last day of December, in Chelsea, Michigan, sunrise is at 8:05 am and sunset at 5:13 pm EST.
Sunshine
In December, the average sunshine in Chelsea, Michigan, is 3.4h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for average individuals.Note: A maximum high UV index of 1 in December translates into the following recommendations:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
Frequently asked questions
How cold is December in Chelsea?
What is the average humidity in December in Chelsea?
What is the driest month in Chelsea?
How many days does it rain in December in Chelsea?
How much does it snow in Chelsea in December?
What is the month with the shortest days in Chelsea?
What is the average length of the day in December in Chelsea?
When are sunrise and sunset in December in Chelsea?
How long on average sun shines in December in Chelsea?
When is the lowest UV index in Chelsea?
What is the UV index intensity in December in Chelsea?
Average temperature in December
Chelsea, MI
- Average high temperature in December: 34.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (27.9°F).
- Average low temperature in December: 25°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 (17.1°F).
Average pressure in December
Chelsea, MI
- Average pressure in December: 30.08"Hg
The months with the highest atmospheric pressure are March and November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Chelsea, MI
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.2mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity in December
Chelsea, MI
- Average humidity in December: 84%
The months with the highest relative humidity are January and February (86%).
The month with the lowest relative humidity is April (77%).
Average rainfall in December
Chelsea, MI
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is December (1.46").
Average rainfall days in December
Chelsea, MI
- Average rainfall days in December: 9.9 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in December
Chelsea, MI
- Average snowfall in December: 2.95"
The month with the highest snowfall is January (5.12").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Chelsea, MI
- Average snowfall days in December: 12.3 days
The month with the highest number of snowfall days is January (15.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Chelsea, 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 6min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Chelsea, MI
- Average sunshine days in December: 12.4 days
The month with the most sunshine days is March (14.8 days).
The month with the least sunshine days is February (9.7 days).
Average UV index in December
Chelsea, MI
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Chelsea, 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 32).
Average visibility in December
Chelsea, MI
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, October and November (6mi).
The months with the lowest visibility are January, February, August, September and December (5mi).
Chelsea, Michigan, USA
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