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
As Blue Mounds, Wisconsin, enters December, the average high-temperature decreases from the an icy 42.3°F (5.7°C) of November to a subzero cold 30°F (-1.1°C). During the month of December, the temperature falls to an average of 19.8°F (-6.8°C).Humidity
The average relative humidity in December is 84%.Rainfall
In Blue Mounds, Wisconsin, in December, during 4.5 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. In Blue Mounds, during the entire year, the rain falls for 128 days and collects up to 22.68" (576mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Blue Mounds, during December, snow falls for 10.2 days and regularly aggregates up to 2.72" (69mm) of snow. Throughout the year, there are 52.2 snowfall days, and 17.95" (456mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of December in Blue Mounds, sunrise is at 7:11 am and sunset at 4:25 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:34 pm CST.
Sunshine
In Blue Mounds, the average sunshine in December is 3.8h.UV index
January, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Blue Mounds. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum UV index of 1 in December translates into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. 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 in Blue Mounds?
How many days does it snow in December?
What is the month with the shortest days in Blue Mounds?
How many hours of daylight does Blue Mounds have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Blue Mounds, WI
- Average high temperature in December: 30°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is January (23.5°F).
- Average low temperature in December: 19.8°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 (10.9°F).
Average pressure in December
Blue Mounds, WI
- Average pressure in December: 30.09"Hg
The months with the highest atmospheric pressure are January and February (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Blue Mounds, WI
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in December
Blue Mounds, WI
- Average humidity in December: 84%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are April, October and November (78%).
Average rainfall in December
Blue Mounds, WI
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in December
Blue Mounds, WI
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is June (17.7 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in December
Blue Mounds, WI
- Average snowfall in December: 2.72"
The month with the highest snowfall is February (4.25").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Blue Mounds, WI
- Average snowfall days in December: 10.2 days
The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Blue Mounds, WI
- 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: 3h and 5min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Blue Mounds, WI
- Average sunshine days in December: 16.9 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in December
Blue Mounds, WI
- 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, November and December (UV index 1).
Average cloud cover in December
Blue Mounds, WI
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Blue Mounds, WI
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
Blue Mounds, Wisconsin, USA
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