December weather forecastSanders, MT
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Sanders, Montana, with an average temperature varying between 18.3°F (-7.6°C) and 30.9°F (-0.6°C).Temperature
In Sanders, Montana, January and December are characterised by the lowest temperatures, recording an average high of 30.9°F (-0.6°C).Humidity
The average relative humidity in December in Sanders is 75%.Rainfall
January, November and December are months with the least rain when the rain falls for 4 days and typically aggregates up to 0.47" (12mm) of rain.Snowfall
January through May, September through December are months with snowfall. In December, it is snowing for 9.4 days. Throughout December, 2.72" (69mm) of snow is accumulated. In Sanders, during the entire year, snow falls for 47 days and aggregates up to 15.83" (402mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 7:31 am and sunset at 4:23 pm. On the last day of December, sunrise is at 7:51 am and sunset at 4:32 pm MST.
Sunshine
The months with the least sunshine are February and December, with an average of 5.3h of sunshine.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV rays for the average person.Note: The maximum UV index, 1 during December, leads to the following 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 dangerous due to its intense radiation; always find shade and reduce exposure. Enhance your sun protection with tightly woven, yet airy clothing. Take careful note! The UV radiation of the Sun can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sanders, MT
- Average high temperature in December: 30.9°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The months with the lowest average high temperature are January and December (30.9°F).
- Average low temperature in December: 18.3°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (17.4°F).
Average pressure in December
Sanders, MT
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Sanders, MT
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is April (10.3mph).
The calmest month (with the lowest average wind speed) is July (8.2mph).
Average humidity in December
Sanders, MT
- Average humidity in December: 75%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (38%).
Average rainfall in December
Sanders, MT
- Average rainfall in December: 0.47"
The wettest month (with the highest rainfall) is May (1.81").
The driest months (with the least rainfall) are January, November and December (0.47").
Average rainfall days in December
Sanders, MT
- Average rainfall days in December: 4 days
The month with the highest number of rainy days is May (13.7 days).
The month with the least rainy days is February (3.8 days).
Average snowfall in December
Sanders, MT
- Average snowfall in December: 2.72"
The month with the highest snowfall is February (3.74").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Sanders, MT
- Average snowfall days in December: 9.4 days
The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Sanders, MT
- Average daylight in December: 8h and 42min
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 18min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 5h and 18min).
Average sunshine days in December
Sanders, MT
- Average sunshine days in December: 18.6 days
The month with the most sunshine days is November (20.9 days).
The month with the least sunshine days is April (14.2 days).
Average UV index in December
Sanders, MT
- Average UV index in December: 1
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Sanders, MT
- Average cloud cover in December: 44
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in December
Sanders, 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).
