December weather forecastElmo, MT
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Elmo, Montana, with temperature in the range of an average high of 27.1°F (-2.7°C) and an average low of 16.2°F (-8.8°C).Temperature
December brings the lowest temperatures, with an average high of 27.1°F (-2.7°C) and an average low of 16.2°F (-8.8°C).Humidity
In Elmo, 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 Elmo, Montana, during the entire year, the rain falls for 129.8 days and collects up to 16.42" (417mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. The month with the most snowfall in Elmo is December, when snow falls for 21.7 days and typically aggregates up to 12.36" (314mm) of snow.Daylight
With an average of 8h and 30min of daylight, December has the shortest days of the year in Elmo.On the first day of December, sunrise is at 8:06 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 8:26 am and sunset at 4:55 pm MST.
Sunshine
In Elmo, the average sunshine in December is 3.8h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the maximum UV index of 1 translates into these guidelines:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Elmo, 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
Elmo, 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
Elmo, 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
Elmo, 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
Elmo, 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
Elmo, 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
Elmo, 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
Elmo, 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
Elmo, MT
- Average daylight in December: 8h and 30min
The month with the longest days is June (Average daylight: 16h and 0min).
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
Elmo, 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
Elmo, 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
Elmo, 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
Elmo, 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).
