December weather forecastOilmont, MT
December
Weather in December
December, the first month of the winter in Oilmont, is also a subzero cold month, with an average temperature varying between 27.7°F (-2.4°C) and 15.4°F (-9.2°C).Temperature
Oilmont experiences its lowest average temperatures in December, reaching a peak of 27.7°F (-2.4°C) and a minimum of 15.4°F (-9.2°C).Humidity
The average relative humidity in December is 77%.Rainfall
The months with the least rainfall are January and December Rain falls for 3.3 days and accumulates 0.39" (10mm) of rain.Snowfall
Months with snowfall are January through May, September through December. In Oilmont, in December, during 9.5 snowfall days, 2.28" (58mm) of snow is typically accumulated. In Oilmont, during the entire year, snow falls for 53.7 days and aggregates up to 20.47" (520mm) of snow.Daylight
With an average of 8h and 18min of daylight, December has the shortest days of the year.On the first day of December in Oilmont, sunrise is at 7:59 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 8:20 am and sunset at 4:41 pm MST.
Sunshine
In Oilmont, the average sunshine in December is 5.5h.UV index
The months with the lowest UV index 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 health risk from unsafe exposure to UV radiation for average individuals.Note: In December, the maximum UV index of 2 suggests these recommendations:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Boost your sun resistance with garments that are densely woven yet spacious. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Oilmont, MT
- Average high temperature in December: 27.7°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is December (27.7°F).
- Average low temperature in December: 15.4°F
The month with the highest average low temperature is August (58.3°F).
The coldest month (with the lowest average low temperature) is December (15.4°F).
Average pressure in December
Oilmont, MT
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Oilmont, MT
- Average wind speed in December: 10mph
The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).
Average humidity in December
Oilmont, 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 (40%).
Average rainfall in December
Oilmont, MT
- Average rainfall in December: 0.39"
The wettest month (with the highest rainfall) is June (2.01").
The driest months (with the least rainfall) are January and December (0.39").
Average rainfall days in December
Oilmont, MT
- Average rainfall days in December: 3.3 days
The month with the highest number of rainy days is May (13.9 days).
The month with the least rainy days is February (3.1 days).
Average snowfall in December
Oilmont, MT
- Average snowfall in December: 2.28"
The month with the highest snowfall is February (4.17").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Oilmont, MT
- Average snowfall days in December: 9.5 days
The month with the highest number of snowfall days is February (10.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Oilmont, MT
- Average daylight in December: 8h and 18min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in December: 5h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in December
Oilmont, MT
- Average sunshine days in December: 20.8 days
The month with the most sunshine days is September (22.2 days).
The month with the least sunshine days is April (14.7 days).
Average UV index in December
Oilmont, 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
Oilmont, MT
- Average cloud cover in December: 42
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in December
Oilmont, 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).
