December weather forecastButte, AK
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Butte, Alaska, with an average temperature varying between 9.9°F (-12.3°C) and 19.8°F (-6.8°C).Temperature
Butte experiences an average high-temperature of a still subzero cold 19.8°F (-6.8°C) in December, subtly different from November's 23.2°F (-4.9°C). Nighttime temperatures consistently average a frigid cold 9.9°F (-12.3°C) during December.Humidity
The average relative humidity in December is 85%.Rainfall
In December, the rain falls for 11.7 days. Throughout December, 1.38" (35mm) of precipitation is accumulated. In Butte, during the entire year, the rain falls for 190.7 days and collects up to 17.4" (442mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Butte, in December, snow falls for 13.9 days, with typically accumulated 6.69" (170mm) of snow. In Butte, Alaska, during the entire year, snow falls for 76.2 days and aggregates up to 33.5" (851mm) of snow.Daylight
With an average of 5h and 30min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 9:46 am and sunset at 3:44 pm. On the last day of the month, sunrise is at 10:13 am and sunset at 3:45 pm AKST.
Sunshine
The month with the least sunshine is December, with an average of 3.9h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for the average person.Note: In December, the maximum UV index of 1 transforms into these recommendations:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Butte, AK
- Average high temperature in December: 19.8°F
The warmest month (with the highest average high temperature) is July (61.2°F).
The month with the lowest average high temperature is January (18.1°F).
- Average low temperature in December: 9.9°F
The month with the highest average low temperature is July (44.2°F).
The coldest month (with the lowest average low temperature) is January (8.1°F).
Average pressure in December
Butte, AK
- Average pressure in December: 29.7"Hg
The month with the highest atmospheric pressure is July (29.96"Hg).
The months with the lowest atmospheric pressure are November and December (29.7"Hg).
Average wind speed in December
Butte, AK
- Average wind speed in December: 5.4mph
The windiest month (with the highest average wind speed) is January (5.5mph).
The calmest month (with the lowest average wind speed) is July (4mph).
Average humidity in December
Butte, AK
- Average humidity in December: 85%
The month with the highest relative humidity is March (87%).
The months with the lowest relative humidity are May and June (69%).
Average rainfall in December
Butte, AK
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is September (2.24").
The driest month (with the least rainfall) is January (0.91").
Average rainfall days in December
Butte, AK
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is June (22.4 days).
The month with the least rainy days is February (8.9 days).
Average snowfall in December
Butte, AK
- Average snowfall in December: 6.69"
The month with the highest snowfall is February (6.93").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Butte, AK
- Average snowfall days in December: 13.9 days
The month with the highest number of snowfall days is February (14.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Butte, AK
- Average daylight in December: 5h and 30min
The month with the longest days is June (Average daylight: 19h and 24min).
The month with the shortest days is December (Average daylight: 5h and 30min).
- Average sunshine in December: 3h and 54min
The month with the most sunshine is May (Average sunshine: 11h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 54min).
Average sunshine days in December
Butte, AK
- Average sunshine days in December: 12.5 days
The month with the most sunshine days is January (13.9 days).
The month with the least sunshine days is June (5.3 days).
Average UV index in December
Butte, AK
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Butte, AK
- Average cloud cover in December: 43
The month with the most cloud cover is April (Cloud cover 46).
The month with the least cloud cover is January (Cloud cover 37).
Average visibility in December
Butte, AK
- Average visibility in December: 5mi
The months with the highest visibility are May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are February, March and April (4mi).
