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 beginning of December involves a decrease in the average high-temperature, transitioning from a cold 42.1°F (5.6°C) in November to a freezing cold 29.5°F (-1.4°C). Juneau observes an average nighttime temperature of 19.6°F (-6.9°C) during December.Humidity
In Juneau, the average relative humidity in December is 85%.Rainfall
In December, in Juneau, the rain falls for 4.3 days. Throughout December, 0.59" (15mm) of precipitation is accumulated. Throughout the year, there are 112 rainfall days, and 12.64" (321mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Juneau, in December, during 10.7 snowfall days, 1.18" (30mm) of snow is typically accumulated. Throughout the year, there are 48.7 snowfall days, and 7.64" (194mm) 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 the month, sunrise is at 7:08 am and sunset at 4:19 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:28 pm CST.
Sunshine
In December, the average sunshine in Juneau is 3.6h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The daily high UV index of 1 in December translates into this advice:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Frequently asked questions
How cold is it in Juneau in December?
What is the average humidity in December in Juneau?
How many days does it rain in December in Juneau?
How many days does it snow in December in Juneau?
What is the month with the shortest days in Juneau?
What is the average length of the day in December in Juneau?
When are sunrise and sunset in December in Juneau?
How many hours of sunshine does Juneau have in December?
What is the month with the lowest UV index in Juneau?
What is the UV index reading in December in Juneau?
Average temperature in December
Juneau, WI
- Average high temperature in December: 29.5°F
The warmest month (with the highest average high temperature) is July (78.4°F).
The month with the lowest average high temperature is January (22.6°F).
- Average low temperature in December: 19.6°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (11.1°F).
Average pressure in December
Juneau, WI
- Average pressure in December: 30.09"Hg
The months with the highest atmospheric pressure are January and February (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Juneau, WI
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is April (10.2mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in December
Juneau, WI
- Average humidity in December: 85%
The months with the highest relative humidity are January and February (89%).
The month with the lowest relative humidity is April (76%).
Average rainfall in December
Juneau, WI
- Average rainfall in December: 0.59"
The wettest month (with the highest rainfall) is June (1.93").
The driest months (with the least rainfall) are January and February (0.47").
Average rainfall days in December
Juneau, WI
- Average rainfall days in December: 4.3 days
The month with the highest number of rainy days is May (15 days).
The months with the least rainy days are January and February (3.3 days).
Average snowfall in December
Juneau, WI
- Average snowfall in December: 1.18"
The month with the highest snowfall is January (1.89").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Juneau, WI
- Average snowfall days in December: 10.7 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Juneau, WI
- 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 July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in December
Juneau, WI
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is January (18.7 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in December
Juneau, WI
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, November and December (UV index 1).
Average cloud cover in December
Juneau, WI
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 35).
Average visibility in December
Juneau, 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).
Juneau, Wisconsin, USA
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