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
Caledonia's December weather comes with a decrease in average high-temperatures, moving from an icy 41.9°F (5.5°C) in November to a subzero cold 27.9°F (-2.3°C). Caledonia temperatures generally rest at a low of 17.1°F (-8.3°C) during the December nights.Humidity
In December, the average relative humidity is 87%.Rainfall
In Caledonia, during December, the rain falls for 4.7 days and regularly aggregates up to 1.46" (37mm) of precipitation. Throughout the year, there are 130.5 rainfall days, and 26.5" (673mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Caledonia, in December, during 11.1 snowfall days, 4.37" (111mm) of snow is typically accumulated. Throughout the year, in Caledonia, there are 51.4 snowfall days, and 22.2" (564mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 7:20 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 4:39 pm CST.
Sunshine
In December, the average sunshine is 3.7h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index, 1 in December, converts into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Caledonia have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Caledonia, MN
- Average high temperature in December: 27.9°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 (21.7°F).
- Average low temperature in December: 17.1°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 (8.8°F).
Average pressure in December
Caledonia, MN
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Caledonia, MN
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in December
Caledonia, MN
- Average humidity in December: 87%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (76%).
Average rainfall in December
Caledonia, MN
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is June (4.61").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in December
Caledonia, MN
- Average rainfall days in December: 4.7 days
The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (3 days).
Average snowfall in December
Caledonia, MN
- Average snowfall in December: 4.37"
The month with the highest snowfall is February (5.71").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Caledonia, MN
- Average snowfall days in December: 11.1 days
The month with the highest number of snowfall days is January (12 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, MN
- 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 4min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
Caledonia, MN
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is January (17.7 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in December
Caledonia, MN
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Caledonia, MN
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Caledonia, MN
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, March, July, August, September and December (5mi).
Caledonia, Minnesota, USA
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