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
The coldest month is December, with an average high-temperature of 25.7°F (-3.5°C) and an average low-temperature of 13.8°F (-10.1°C).Humidity
In December, the average relative humidity in Coram is 91%.Rainfall
In Coram, in December, it is raining for 8.9 days, with typically 1.02" (26mm) of accumulated precipitation. In Coram, during the entire year, the rain falls for 126.4 days and collects up to 11.22" (285mm) of precipitation.Snowfall
January through May, September through December are months with snowfall. In Coram, Montana, during December, snow falls for 19.1 days and regularly aggregates up to 6.77" (172mm) of snow. In Coram, during the entire year, snow falls for 97 days and aggregates up to 33.86" (860mm) of snow.Daylight
With an average of 8h and 24min of daylight, December has the shortest days of the year in Coram.On the first day of the month, sunrise is at 8:07 am and sunset at 4:43 pm. On the last day of December, in Coram, sunrise is at 8:27 am and sunset at 4:51 pm MST.
Sunshine
In December, the average sunshine is 4h.UV index
January, February, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Coram, Montana. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 1 suggests these recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
What is the coldest time of year in Coram?
How cold is December in Coram?
What is the average humidity in December in Coram?
How many days does it rain in December in Coram?
How much does it snow in Coram in December?
What is the month with the shortest days in Coram?
How many hours of daylight does Coram have in December?
When are sunrise and sunset in December in Coram?
How long on average sun shines in December in Coram?
When is the lowest UV index in Coram?
How high is the UV index in December in Coram?
Average temperature in December
Coram, MT
- Average high temperature in December: 25.7°F
The warmest month (with the highest average high temperature) is July (77.9°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in December: 13.8°F
The month with the highest average low temperature is August (45.5°F).
The coldest month (with the lowest average low temperature) is February (13.5°F).
Average pressure in December
Coram, MT
- Average pressure in December: 30.15"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in December
Coram, MT
- Average wind speed in December: 3.7mph
The windiest month (with the highest average wind speed) is April (4.6mph).
The calmest months (with the lowest average wind speed) are August and December (3.7mph).
Average humidity in December
Coram, MT
- Average humidity in December: 91%
The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (55%).
Average rainfall in December
Coram, MT
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is June (1.42").
The driest month (with the least rainfall) is August (0.43").
Average rainfall days in December
Coram, MT
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is April (15.8 days).
The month with the least rainy days is August (6.3 days).
Average snowfall in December
Coram, MT
- Average snowfall in December: 6.77"
The month with the highest snowfall is January (7.72").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Coram, MT
- Average snowfall days in December: 19.1 days
The month with the highest number of snowfall days is December (19.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Coram, MT
- Average daylight in December: 8h and 2min
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 24min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Coram, MT
- Average sunshine days in December: 11.8 days
The month with the most sunshine days is July (21.5 days).
The month with the least sunshine days is March (7.7 days).
Average UV index in December
Coram, 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
Coram, MT
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 65).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in December
Coram, 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).
Coram, Montana, USA
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