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
With the onset of December, Belltower experiences a modest temperature adjustment, with the average high-temperature receding from a cold 42.1°F (5.6°C) in November to a subzero cold 27.9°F (-2.3°C). The low-temperature average for Belltower during December stands at 16°F (-8.9°C).Humidity
In Belltower, the average relative humidity in December is 79%.Rainfall
In December, in Belltower, the rain falls for 3.8 days. Throughout December, 0.59" (15mm) of precipitation is accumulated. Throughout the year, in Belltower, Montana, there are 103.8 rainfall days, and 14.88" (378mm) of precipitation is accumulated.Snowfall
Months with snowfall in Belltower, Montana, are January through May, October through December. In Belltower, in December, during 10.9 snowfall days, 2.76" (70mm) of snow is typically accumulated. In Belltower, Montana, during the entire year, snow falls for 62.2 days and aggregates up to 22.95" (583mm) of snow.Daylight
December has the shortest days of the year in Belltower, with an average of 8h and 48min of daylight.On the first day of December, sunrise is at 7:18 am and sunset at 4:15 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:23 pm MST.
Sunshine
In December, the average sunshine is 5.2h.UV index
February and December, with an average maximum UV index of 1, are months with the lowest UV index in Belltower, Montana. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In December, an average UV index of 1 transforms into the following instructions:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. To cut down UV radiation exposure by about half, sport a wide-brim hat. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Belltower?
What is the average humidity in December in Belltower?
How much does it rain in Belltower in December?
How many days does it snow in December in Belltower?
What is the month with the shortest days in Belltower?
What is the average length of the day in December in Belltower?
When are sunrise and sunset in December in Belltower?
How many hours of sunshine does Belltower have in December?
When is the lowest UV index in Belltower?
How high is the UV index in December in Belltower?
Average temperature in December
Belltower, MT
- Average high temperature in December: 27.9°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (27.3°F).
- Average low temperature in December: 16°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in December
Belltower, MT
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Belltower, MT
- Average wind speed in December: 11.2mph
The windiest months (with the highest average wind speed) are January and October (11.9mph).
The calmest month (with the lowest average wind speed) is July (9.8mph).
Average humidity in December
Belltower, MT
- Average humidity in December: 79%
The month with the highest relative humidity is January (82%).
The month with the lowest relative humidity is August (47%).
Average rainfall in December
Belltower, MT
- Average rainfall in December: 0.59"
The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are January and November (0.51").
Average rainfall days in December
Belltower, MT
- Average rainfall days in December: 3.8 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in December
Belltower, MT
- Average snowfall in December: 2.76"
The month with the highest snowfall is March (4.37").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Belltower, MT
- Average snowfall days in December: 10.9 days
The month with the highest number of snowfall days is February (12.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Belltower, MT
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is August (Average sunshine: 11h and 30min).
The months with the least sunshine are January and February (Average sunshine: 5h and 0min).
Average sunshine days in December
Belltower, MT
- Average sunshine days in December: 17.7 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is April (11.6 days).
Average UV index in December
Belltower, MT
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are February and December (UV index 1).
Average cloud cover in December
Belltower, MT
- Average cloud cover in December: 47
The months with the most cloud cover are January and February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 18).
Average visibility in December
Belltower, 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).
Belltower, Montana, USA
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