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 shift from November to December involves a decrease in the average high-temperature, dropping from a frosty 45.1°F (7.3°C) to a wintry 33.4°F (0.8°C). Caledonia's nighttime temperatures in December settle close to daytime highs at an average of 25.3°F (-3.7°C).Humidity
The average relative humidity in December is 85%.Rainfall
In Caledonia, in December, it is raining for 7.4 days, with typically 1.26" (32mm) of accumulated precipitation. Throughout the year, there are 136.2 rainfall days, and 18.98" (482mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In Caledonia, in December, during 14.9 snowfall days, 2.95" (75mm) of snow is typically accumulated. Throughout the year, there are 65.8 snowfall days, and 14.17" (360mm) of snow is accumulated.Daylight
December has the shortest days of the year in Caledonia, Michigan, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:53 am and sunset at 5:09 pm. On the last day of December, sunrise is at 8:12 am and sunset at 5:18 pm EST.
Sunshine
In December, the average sunshine is 2.9h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 1 in December leads to these recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December in Caledonia?
Average temperature in December
Caledonia, MI
- Average high temperature in December: 33.4°F
The warmest month (with the highest average high temperature) is July (79.5°F).
The month with the lowest average high temperature is January (27.5°F).
- Average low temperature in December: 25.3°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 (17.8°F).
Average pressure in December
Caledonia, MI
- Average pressure in December: 30.07"Hg
The month with the highest atmospheric pressure is March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Caledonia, MI
- Average wind speed in December: 9.3mph
The windiest months (with the highest average wind speed) are February and April (9.8mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in December
Caledonia, MI
- Average humidity in December: 85%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (75%).
Average rainfall in December
Caledonia, MI
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is October (2.32").
The driest month (with the least rainfall) is February (1.06").
Average rainfall days in December
Caledonia, MI
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is May (16.1 days).
The month with the least rainy days is February (5 days).
Average snowfall in December
Caledonia, MI
- Average snowfall in December: 2.95"
The month with the highest snowfall is January (4.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Caledonia, MI
- Average snowfall days in December: 14.9 days
The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Caledonia, 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: 2h and 5min
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 24min).
Average sunshine days in December
Caledonia, MI
- Average sunshine days in December: 11.2 days
The month with the most sunshine days is September (17.2 days).
The month with the least sunshine days is February (9.5 days).
Average UV index in December
Caledonia, MI
- Average UV index in December: 1
The months with the highest UV index are June and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Caledonia, MI
- Average cloud cover in December: 70
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Caledonia, MI
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Caledonia, Michigan, USA
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