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
Roscoe's December weather, marked by an average high temperature of 30.7°F (-0.7°C) and an average low temperature of 17.4°F (-8.1°C), is the coldest in the year.Humidity
In Roscoe, Montana, the average relative humidity in December is 74%.Rainfall
In Roscoe, in December, it is raining for 6.2 days, with typically 0.63" (16mm) of accumulated precipitation. Throughout the year, in Roscoe, Montana, there are 108.1 rainfall days, and 12.83" (326mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. In Roscoe, during December, snow falls for 9.6 days and regularly aggregates up to 4.72" (120mm) of snow. In Roscoe, during the entire year, snow falls for 61.5 days and aggregates up to 41.77" (1061mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 48min of daylight.On the first day of December, sunrise is at 7:37 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:57 am and sunset at 4:45 pm MST.
Sunshine
In Roscoe, the average sunshine in December is 6.4h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Experience reduced UV exposure by about half when donning a wide-brim hat. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
What is the coldest time of year in Roscoe?
How cold is December in Roscoe?
What is the average humidity in December in Roscoe?
How much does it rain in Roscoe in December?
How many days does it snow in December in Roscoe?
What is the month with the shortest days in Roscoe?
What is the average length of the day in December in Roscoe?
When is the sunrise / sunset in December in Roscoe?
How long on average sun shines in December in Roscoe?
What is the month with the lowest UV index in Roscoe?
What is the UV index intensity in December in Roscoe?
Average temperature in December
Roscoe, MT
- Average high temperature in December: 30.7°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 (30.7°F).
- Average low temperature in December: 17.4°F
The months with the highest average low temperature are July and August (57.2°F).
The coldest month (with the lowest average low temperature) is February (16.7°F).
Average pressure in December
Roscoe, MT
- Average pressure in December: 30.15"Hg
The months with the highest atmospheric pressure are January and December (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Roscoe, MT
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Roscoe, MT
- Average humidity in December: 74%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (41%).
Average rainfall in December
Roscoe, MT
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is May (2.09").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in December
Roscoe, MT
- Average rainfall days in December: 6.2 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is February (4 days).
Average snowfall in December
Roscoe, MT
- Average snowfall in December: 4.72"
The month with the highest snowfall is February (6.81").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Roscoe, MT
- Average snowfall days in December: 9.6 days
The month with the highest number of snowfall days is February (10.8 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Roscoe, MT
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 6h and 2min
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 12min).
Average sunshine days in December
Roscoe, MT
- Average sunshine days in December: 19.7 days
The month with the most sunshine days is December (19.7 days).
The month with the least sunshine days is May (10.5 days).
Average UV index in December
Roscoe, 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, November and December (UV index 2).
Average cloud cover in December
Roscoe, MT
- Average cloud cover in December: 33
The month with the most cloud cover is February (Cloud cover 38).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in December
Roscoe, 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).
Roscoe, Montana, USA
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