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's onset brings a clear reduction in the average high-temperature, falling from an icy 40.1°F (4.5°C) in November to a subzero cold 25.5°F (-3.6°C). December generally records an average low-temperature of 15.3°F (-9.3°C).Humidity
The average relative humidity in December is 88%.Rainfall
In Cottage Grove, in December, during 4.5 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Cottage Grove, during the entire year, the rain falls for 128.1 days and collects up to 22.83" (580mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 14.3 days. Throughout December, 4.57" (116mm) of snow is accumulated. Throughout the year, there are 67.4 snowfall days, and 24.33" (618mm) of snow is accumulated.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:29 am and sunset at 4:32 pm. On the last day of December, in Cottage Grove, sunrise is at 7:49 am and sunset at 4:40 pm CST.
Sunshine
In December, the average sunshine is 3.4h.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 of 2, and less, symbolizes a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
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 many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Cottage Grove have in December?
What time are sunrise and 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?
Average temperature in December
Cottage Grove, MN
- Average high temperature in December: 25.5°F
The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (20.7°F).
- Average low temperature in December: 15.3°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (7.5°F).
Average pressure in December
Cottage Grove, MN
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Cottage Grove, MN
- Average wind speed in December: 8mph
The windiest month (with the highest average wind speed) is April (9.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Cottage Grove, MN
- Average humidity in December: 88%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (72%).
Average rainfall in December
Cottage Grove, MN
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is June (3.74").
The driest month (with the least rainfall) is January (0.67").
Average rainfall days in December
Cottage Grove, MN
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (3 days).
Average snowfall in December
Cottage Grove, MN
- Average snowfall in December: 4.57"
The month with the highest snowfall is February (5.91").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Cottage Grove, MN
- Average snowfall days in December: 14.3 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Cottage Grove, MN
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 3h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Cottage Grove, MN
- Average sunshine days in December: 15.9 days
The month with the most sunshine days is November (17.4 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in December
Cottage Grove, 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
Cottage Grove, MN
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in December
Cottage Grove, MN
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
Cottage Grove, Minnesota, USA
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