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
With its high average temperature of 30.9°F (-0.6°C) and a low of 17.8°F (-7.9°C), December is regarded as the coldest month.Humidity
In Rapelje, the average relative humidity in December is 74%.Rainfall
In Rapelje, during December, the rain falls for 6.8 days and regularly aggregates up to 0.71" (18mm) of precipitation. Throughout the year, in Rapelje, there are 125.4 rainfall days, and 14.49" (368mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. In Rapelje, in December, snow falls for 11.5 days, with typically accumulated 5.2" (132mm) of snow. In Rapelje, during the entire year, snow falls for 63.3 days and aggregates up to 39.09" (993mm) of snow.Daylight
The month with the shortest days in Rapelje is December, with an average of 8h and 42min of daylight.On the first day of December, sunrise is at 7:39 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 4:42 pm MST.
Sunshine
The months with the least sunshine are February and December, with an average of 6.2h of sunshine.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Experience reduced UV exposure by about half when donning a wide-brim hat. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What are the coldest months in Rapelje?
How cold is it in Rapelje in December?
What is the average humidity in December in Rapelje?
How many days does it rain in December in Rapelje?
How much does it snow in Rapelje in December?
What is the month with the shortest days in Rapelje?
What is the average length of the day in December in Rapelje?
When are sunrise and sunset in December in Rapelje?
What are the months with the least sunshine in Rapelje?
How long on average sun shines in December in Rapelje?
What is the month with the lowest UV index in Rapelje?
What is the UV index reading in December in Rapelje?
Average temperature in December
Rapelje, MT
- Average high temperature in December: 30.9°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is December (30.9°F).
- Average low temperature in December: 17.8°F
The month with the highest average low temperature is August (57.2°F).
The coldest month (with the lowest average low temperature) is February (17.4°F).
Average pressure in December
Rapelje, MT
- Average pressure in December: 30.15"Hg
The months with the highest atmospheric pressure are January and December (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Rapelje, MT
- Average wind speed in December: 8.4mph
The windiest month (with the highest average wind speed) is January (8.9mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in December
Rapelje, MT
- Average humidity in December: 74%
The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is August (41%).
Average rainfall in December
Rapelje, MT
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in December
Rapelje, MT
- Average rainfall days in December: 6.8 days
The month with the highest number of rainy days is May (17.5 days).
The month with the least rainy days is February (6.7 days).
Average snowfall in December
Rapelje, MT
- Average snowfall in December: 5.2"
The month with the highest snowfall is February (7.36").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Rapelje, MT
- Average snowfall days in December: 11.5 days
The month with the highest number of snowfall days is February (13.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Rapelje, MT
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 6h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 12min).
Average sunshine days in December
Rapelje, MT
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is September (18.9 days).
The month with the least sunshine days is April (9.5 days).
Average UV index in December
Rapelje, 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, November and December (UV index 2).
Average cloud cover in December
Rapelje, MT
- Average cloud cover in December: 34
The month with the most cloud cover is February (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in December
Rapelje, 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).
Rapelje, Montana, USA
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