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
Big Timber, Montana, notes the coldest temperatures in December, with a high average of 28.4°F (-2°C) and a low of 16°F (-8.9°C).Humidity
In December, the average relative humidity is 78%.Rainfall
In December, the rain falls for 5.3 days. Throughout December, 0.59" (15mm) of precipitation is accumulated. Throughout the year, there are 129.6 rainfall days, and 15.83" (402mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In Big Timber, in December, during 10.5 snowfall days, 4.61" (117mm) of snow is typically accumulated. Throughout the year, there are 67.6 snowfall days, and 38.19" (970mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 42min of daylight.On the first day of December, sunrise is at 7:41 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 4:45 pm MST.
Sunshine
January, February and December, with an average of 6.2h of sunshine, are months with the least sunshine.UV index
January through April, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 2 in December leads to these guidelines:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
How cold is it in 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?
What is the average length of the day in December?
When is the sunrise / sunset in December?
What is the month with the least sunshine?
How many hours of sunshine does Big Timber have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Big Timber, MT
- Average high temperature in December: 28.4°F
The warmest month (with the highest average high temperature) is July (78.6°F).
The month with the lowest average high temperature is December (28.4°F).
- Average low temperature in December: 16°F
The month with the highest average low temperature is August (52.9°F).
The coldest month (with the lowest average low temperature) is February (15.3°F).
Average pressure in December
Big Timber, MT
- Average pressure in December: 30.16"Hg
The months with the highest atmospheric pressure are January and December (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Big Timber, MT
- Average wind speed in December: 10.5mph
The windiest month (with the highest average wind speed) is January (11.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in December
Big Timber, MT
- Average humidity in December: 78%
The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is August (47%).
Average rainfall in December
Big Timber, MT
- Average rainfall in December: 0.59"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in December
Big Timber, MT
- Average rainfall days in December: 5.3 days
The month with the highest number of rainy days is May (19.8 days).
The months with the least rainy days are January and December (5.3 days).
Average snowfall in December
Big Timber, MT
- Average snowfall in December: 4.61"
The month with the highest snowfall is March (7.09").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Big Timber, MT
- Average snowfall days in December: 10.5 days
The month with the highest number of snowfall days is February (12.9 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Big Timber, MT
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are January, February and December (Average sunshine: 6h and 12min).
Average sunshine days in December
Big Timber, MT
- Average sunshine days in December: 19.3 days
The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is May (7.7 days).
Average UV index in December
Big Timber, MT
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in December
Big Timber, MT
- Average cloud cover in December: 37
The month with the most cloud cover is February (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in December
Big Timber, MT
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Big Timber, Montana, USA
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