December weather forecastStacey, MT
December
Weather in December
December, the first month of the winter in Stacey, is still a freezing cold month, with an average temperature varying between 16.7°F (-8.5°C) and 30.4°F (-0.9°C).Temperature
December, with an average high of 30.4°F (-0.9°C) and a low of 16.7°F (-8.5°C), signifies the coldest month of the year.Humidity
In Stacey, the average relative humidity in December is 77%.Rainfall
The month with the least rainfall is December, when the rain falls for 3.4 days and typically collects 0.47" (12mm) of precipitation.Snowfall
January through June, September through December are months with snowfall in Stacey. In Stacey, in December, during 9.3 snowfall days, 3.15" (80mm) of snow is typically accumulated. Throughout the year, in Stacey, there are 55.2 snowfall days, and 23.5" (597mm) of snow is accumulated.Daylight
December has the shortest days of the year in Stacey, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:24 am and sunset at 4:20 pm. On the last day of December, sunrise is at 7:44 am and sunset at 4:29 pm MST.
Sunshine
The average sunshine in December is 5.4h.UV index
The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Stacey, MT
- Average high temperature in December: 30.4°F
The warmest month (with the highest average high temperature) is July (85.5°F).
The month with the lowest average high temperature is December (30.4°F).
- Average low temperature in December: 16.7°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure in December
Stacey, 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
Stacey, MT
- Average wind speed in December: 8.2mph
The windiest month (with the highest average wind speed) is April (10mph).
The calmest months (with the lowest average wind speed) are July and August (7.8mph).
Average humidity in December
Stacey, MT
- Average humidity in December: 77%
The month with the highest relative humidity is January (80%).
The month with the lowest relative humidity is August (42%).
Average rainfall in December
Stacey, MT
- Average rainfall in December: 0.47"
The wettest month (with the highest rainfall) is May (2.56").
The driest month (with the least rainfall) is December (0.47").
Average rainfall days in December
Stacey, MT
- Average rainfall days in December: 3.4 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is February (2.8 days).
Average snowfall in December
Stacey, MT
- Average snowfall in December: 3.15"
The month with the highest snowfall is February (4.33").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Stacey, MT
- Average snowfall days in December: 9.3 days
The month with the highest number of snowfall days is February (10.4 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Stacey, MT
- Average daylight in December: 8h and 48min
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 48min).
- Average sunshine in December: 5h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in December
Stacey, MT
- Average sunshine days in December: 20.5 days
The month with the most sunshine days is December (20.5 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in December
Stacey, MT
- Average UV index in December: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, March, April, November and December (UV index 2).
Average cloud cover in December
Stacey, MT
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 15).
Average visibility in December
Stacey, 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).
