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 coldest period tends to be December, when average temperatures fluctuate between a high of 27°F (-2.8°C) and a low of 12.6°F (-10.8°C).Humidity
In December, the average relative humidity in Basin is 84%.Rainfall
December is the month with the least rainfall in Basin. Rain falls for 8.2 days and accumulates 0.79" (20mm) of precipitation.Snowfall
January through June, September through December are months with snowfall in Basin. In Basin, Montana, during December, snow falls for 16.8 days and regularly aggregates up to 6.22" (158mm) of snow. Throughout the year, in Basin, there are 105.8 snowfall days, and 55.12" (1400mm) of snow is accumulated.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:52 am and sunset at 4:44 pm. On the last day of December, in Basin, sunrise is at 8:11 am and sunset at 4:52 pm MST.
Sunshine
The months with the least sunshine in Basin are January and December, with an average of 5.6h of sunshine.UV index
In Basin, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 2 during December translates into the following directions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
Frequently asked questions
What month is the coldest in Basin?
How cold is it in Basin in December?
What is the average humidity in December in Basin?
What is the driest month in Basin?
How many days does it rain in December in Basin?
How many days does it snow in December in Basin?
What is the month with the shortest days in Basin?
How many hours of daylight does Basin have in December?
When are sunrise and sunset in December in Basin?
What is the month with the least sunshine in Basin?
How many hours of sunshine does Basin have in December?
What is the UV index intensity in December in Basin?
Average temperature in December
Basin, MT
- Average high temperature in December: 27°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is December (27°F).
- Average low temperature in December: 12.6°F
The month with the highest average low temperature is August (48.6°F).
The coldest month (with the lowest average low temperature) is December (12.6°F).
Average pressure in December
Basin, MT
- Average pressure in December: 30.18"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Basin, MT
- Average wind speed in December: 6.4mph
The windiest months (with the highest average wind speed) are January and November (6.5mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in December
Basin, MT
- Average humidity in December: 84%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (46%).
Average rainfall in December
Basin, MT
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is June (2.68").
The driest month (with the least rainfall) is December (0.79").
Average rainfall days in December
Basin, MT
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in December
Basin, MT
- Average snowfall in December: 6.22"
The month with the highest snowfall is February (9.72").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Basin, MT
- Average snowfall days in December: 16.8 days
The month with the highest number of snowfall days is February (18 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Basin, 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: 5h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in December
Basin, MT
- Average sunshine days in December: 13.7 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is February (8.5 days).
Average UV index in December
Basin, MT
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in December
Basin, MT
- Average cloud cover in December: 44
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in December
Basin, MT
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Basin, Montana, USA
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