December weather forecastLonepine, MT
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Lonepine, Montana, with an average temperature fluctuating between 27.1°F (-2.7°C) and 16.2°F (-8.8°C).Temperature
Temperature records mark December as the coldest month, with highs averaging 27.1°F (-2.7°C) and lows at 16.2°F (-8.8°C).Humidity
In Lonepine, the average relative humidity in December is 90%.Rainfall
In December, the rain falls for 6.5 days. Throughout December, 1.57" (40mm) of precipitation is accumulated. In Lonepine, during the entire year, the rain falls for 129.8 days and collects up to 16.42" (417mm) of precipitation.Snowfall
January through June, September through December are months with snowfall. The month with the most snowfall is December, when snow falls for 21.7 days and typically aggregates up to 12.36" (314mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 30min of daylight.On the first day of December, sunrise is at 8:07 am and sunset at 4:48 pm. On the last day of the month, sunrise is at 8:27 am and sunset at 4:56 pm MST.
Sunshine
In Lonepine, Montana, the average sunshine in December is 3.8h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: An average UV index of 1 in December transforms into this advice:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lonepine, MT
- Average high temperature in December: 27.1°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (27.1°F).
- Average low temperature in December: 16.2°F
The month with the highest average low temperature is July (48.4°F).
The coldest months (with the lowest average low temperature) are January and December (16.2°F).
Average pressure in December
Lonepine, MT
- Average pressure in December: 30.16"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Lonepine, MT
- Average wind speed in December: 3.6mph
The windiest month (with the highest average wind speed) is April (4.7mph).
The calmest months (with the lowest average wind speed) are August and December (3.6mph).
Average humidity in December
Lonepine, MT
- Average humidity in December: 90%
The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are July and August (52%).
Average rainfall in December
Lonepine, MT
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is June (1.89").
The driest month (with the least rainfall) is July (0.59").
Average rainfall days in December
Lonepine, MT
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is April (15.9 days).
The month with the least rainy days is December (6.5 days).
Average snowfall in December
Lonepine, MT
- Average snowfall in December: 12.36"
The month with the highest snowfall is December (12.36").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Lonepine, MT
- Average snowfall days in December: 21.7 days
The month with the highest number of snowfall days is January (22.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Lonepine, MT
- Average daylight in December: 8h and 30min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in December: 3h and 48min
The month with the most sunshine is July (Average sunshine: 11h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Lonepine, MT
- Average sunshine days in December: 9.5 days
The month with the most sunshine days is July (20.8 days).
The month with the least sunshine days is February (7.1 days).
Average UV index in December
Lonepine, MT
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Lonepine, MT
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in December
Lonepine, MT
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).
