December weather forecastMartinsdale, MT
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Martinsdale, Montana, with an average temperature ranging between max 26.6°F (-3°C) and min 14.2°F (-9.9°C).Temperature
With average high temperatures of 26.6°F (-3°C) and lows of 14.2°F (-9.9°C), December is the coldest month.Humidity
In Martinsdale, the average relative humidity in December is 81%.Rainfall
The month with the least rainfall in Martinsdale is December, when the rain falls for 3.7 days and typically collects 0.24" (6mm) of precipitation.Snowfall
January through June, September through December are months with snowfall in Martinsdale. In Martinsdale, in December, during 6.7 snowfall days, 1.81" (46mm) of snow is typically accumulated. Throughout the year, in Martinsdale, there are 56.9 snowfall days, and 25.55" (649mm) 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 the month, sunrise is at 7:45 am and sunset at 4:36 pm. On the last day of December, in Martinsdale, Montana, sunrise is at 8:04 am and sunset at 4:44 pm MST.
Sunshine
In Martinsdale, Montana, the average sunshine in December is 6.4h.UV index
The months with the lowest UV index are January through April, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: In December, a regular UV index of 2 translates into these guidelines:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Martinsdale, MT
- Average high temperature in December: 26.6°F
The warmest month (with the highest average high temperature) is July (77°F).
The month with the lowest average high temperature is December (26.6°F).
- Average low temperature in December: 14.2°F
The month with the highest average low temperature is August (50.2°F).
The coldest month (with the lowest average low temperature) is February (14°F).
Average pressure in December
Martinsdale, 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 (29.88"Hg).
Average wind speed in December
Martinsdale, MT
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is January (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in December
Martinsdale, MT
- Average humidity in December: 81%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is August (49%).
Average rainfall in December
Martinsdale, MT
- Average rainfall in December: 0.24"
The wettest month (with the highest rainfall) is May (1.61").
The driest month (with the least rainfall) is December (0.24").
Average rainfall days in December
Martinsdale, MT
- Average rainfall days in December: 3.7 days
The month with the highest number of rainy days is May (12 days).
The month with the least rainy days is January (3.2 days).
Average snowfall in December
Martinsdale, MT
- Average snowfall in December: 1.81"
The month with the highest snowfall is February (5.59").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Martinsdale, MT
- Average snowfall days in December: 6.7 days
The month with the highest number of snowfall days is February (12.5 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Martinsdale, MT
- Average daylight in December: 8h and 42min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 6h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is February (Average sunshine: 6h and 18min).
Average sunshine days in December
Martinsdale, MT
- Average sunshine days in December: 23.4 days
The months with the most sunshine days are August and September (23.8 days).
The month with the least sunshine days is February (14.8 days).
Average UV index in December
Martinsdale, MT
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, April, October, November and December (UV index 2).
Average cloud cover in December
Martinsdale, MT
- Average cloud cover in December: 35
The month with the most cloud cover is February (Cloud cover 42).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in December
Martinsdale, MT
- Average visibility in December: 6mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
