December weather forecastEthridge, MT
December
Weather in December
December, the first month of the winter in Ethridge, is also a subzero cold month, with temperature in the range of an average low of 15.3°F (-9.3°C) and an average high of 27.1°F (-2.7°C).Temperature
The month of December, characterized by an average high of 27.1°F (-2.7°C) and a low of 15.3°F (-9.3°C), is recognized as the coldest.Humidity
In Ethridge, the average relative humidity in December is 77%.Rainfall
In Ethridge, in December, during 3.5 rainfall days, 0.43" (11mm) of precipitation is typically accumulated. Throughout the year, there are 70.4 rainfall days, and 8.46" (215mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. In Ethridge, in December, during 10.2 snowfall days, 2.72" (69mm) of snow is typically accumulated. In Ethridge, during the entire year, snow falls for 54.3 days and aggregates up to 19.49" (495mm) of snow.Daylight
December has the shortest days of the year in Ethridge, with an average of 8h and 24min of daylight.On the first day of December, sunrise is at 8:00 am and sunset at 4:35 pm. On the last day of the month, sunrise is at 8:20 am and sunset at 4:43 pm MST.
Sunshine
The months with the least sunshine are January and December, with an average of 5.6h of sunshine.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 estimate of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the maximum UV index of 2 suggests these recommendations:
While many people can endure lengthy sun exposure, it remains imperative to safeguard babies, children, and fair-skinned individuals. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ethridge, MT
- Average high temperature in December: 27.1°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is December (27.1°F).
- Average low temperature in December: 15.3°F
The month with the highest average low temperature is August (55.2°F).
The coldest month (with the lowest average low temperature) is December (15.3°F).
Average pressure in December
Ethridge, 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 (29.87"Hg).
Average wind speed in December
Ethridge, MT
- Average wind speed in December: 11.4mph
The windiest month (with the highest average wind speed) is January (11.8mph).
The calmest months (with the lowest average wind speed) are July and August (8.8mph).
Average humidity in December
Ethridge, MT
- Average humidity in December: 77%
The month with the highest relative humidity is January (79%).
The month with the lowest relative humidity is August (43%).
Average rainfall in December
Ethridge, MT
- Average rainfall in December: 0.43"
The wettest month (with the highest rainfall) is June (1.77").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in December
Ethridge, MT
- Average rainfall days in December: 3.5 days
The month with the highest number of rainy days is May (10.4 days).
The month with the least rainy days is November (2.6 days).
Average snowfall in December
Ethridge, MT
- Average snowfall in December: 2.72"
The month with the highest snowfall is February (3.58").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Ethridge, MT
- Average snowfall days in December: 10.2 days
The month with the highest number of snowfall days is December (10.2 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Ethridge, MT
- Average daylight in December: 8h and 24min
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 24min).
- Average sunshine in December: 5h and 36min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 36min).
Average sunshine days in December
Ethridge, MT
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is July (23.5 days).
The month with the least sunshine days is April (17.4 days).
Average UV index in December
Ethridge, 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
Ethridge, MT
- Average cloud cover in December: 40
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in December
Ethridge, 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).
