December weather forecastVaughn, MT
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Vaughn, Montana, with an average temperature ranging between max 29.8°F (-1.2°C) and min 18.1°F (-7.7°C).Temperature
In Vaughn, December is the month with the lowest recorded average temperatures, measuring a high of 29.8°F (-1.2°C) and a low of 18.1°F (-7.7°C).Humidity
The average relative humidity in December in Vaughn, Montana, is 76%.Rainfall
In December, the rain falls for 4.6 days. Throughout December, 0.63" (16mm) of precipitation is accumulated. In Vaughn, during the entire year, the rain falls for 102.6 days and collects up to 11.89" (302mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In December, it is snowing for 12.5 days. Throughout December, 4.25" (108mm) of snow is accumulated. In Vaughn, during the entire year, snow falls for 66.6 days and aggregates up to 32.17" (817mm) of snow.Daylight
With an average of 8h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:54 am and sunset at 4:36 pm. On the last day of December, in Vaughn, sunrise is at 8:14 am and sunset at 4:45 pm MST.
Sunshine
January, February and December, with an average of 5.5h of sunshine, are months with the least sunshine in Vaughn.UV index
The months with the lowest UV index in Vaughn are January through March, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be careful! The Sun's UV radiation can nearly be doubled by the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Vaughn, MT
- Average high temperature in December: 29.8°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is December (29.8°F).
- Average low temperature in December: 18.1°F
The month with the highest average low temperature is August (57.6°F).
The coldest month (with the lowest average low temperature) is December (18.1°F).
Average pressure in December
Vaughn, MT
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Vaughn, MT
- Average wind speed in December: 10.9mph
The windiest month (with the highest average wind speed) is November (11.2mph).
The calmest month (with the lowest average wind speed) is August (7.5mph).
Average humidity in December
Vaughn, MT
- Average humidity in December: 76%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (41%).
Average rainfall in December
Vaughn, MT
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is June (1.97").
The driest months (with the least rainfall) are January and July (0.59").
Average rainfall days in December
Vaughn, MT
- Average rainfall days in December: 4.6 days
The month with the highest number of rainy days is May (14.5 days).
The month with the least rainy days is November (4.4 days).
Average snowfall in December
Vaughn, MT
- Average snowfall in December: 4.25"
The month with the highest snowfall is February (5.28").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Vaughn, MT
- Average snowfall days in December: 12.5 days
The month with the highest number of snowfall days is February (12.6 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Vaughn, MT
- Average daylight in December: 8h and 30min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 5h and 30min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 30min).
Average sunshine days in December
Vaughn, MT
- Average sunshine days in December: 17.3 days
The month with the most sunshine days is September (20.5 days).
The month with the least sunshine days is April (11.6 days).
Average UV index in December
Vaughn, 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, October, November and December (UV index 2).
Average cloud cover in December
Vaughn, MT
- Average cloud cover in December: 42
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 13).
Average visibility in December
Vaughn, 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).
