December weather forecastSaint Regis, MT
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Saint Regis, Montana, with an average temperature ranging between max 28.9°F (-1.7°C) and min 16.2°F (-8.8°C).Temperature
The month of December, characterized by an average high of 28.9°F (-1.7°C) and a low of 16.2°F (-8.8°C), is recognized as the coldest.Humidity
In December, the average relative humidity in Saint Regis is 91%.Rainfall
In Saint Regis, in December, during 12.2 rainfall days, 2.99" (76mm) of precipitation is typically accumulated. Throughout the year, in Saint Regis, there are 152.1 rainfall days, and 22.09" (561mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. In Saint Regis, in December, snow falls for 20.4 days, with typically accumulated 13.35" (339mm) of snow. In Saint Regis, during the entire year, snow falls for 90.2 days and aggregates up to 58.15" (1477mm) of snow.Daylight
December has the shortest days of the year in Saint Regis, Montana, with an average of 8h and 30min of daylight.On the first day of December, sunrise is at 8:07 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 8:27 am and sunset at 5:00 pm MST.
Sunshine
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 unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. It's recommended to limit sun exposure when its radiation is at its peak during midday. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Saint Regis, MT
- Average high temperature in December: 28.9°F
The warmest months (with the highest average high temperature) are July and August (78.8°F).
The month with the lowest average high temperature is December (28.9°F).
- Average low temperature in December: 16.2°F
The month with the highest average low temperature is August (45.7°F).
The coldest month (with the lowest average low temperature) is December (16.2°F).
Average pressure in December
Saint Regis, MT
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Saint Regis, MT
- Average wind speed in December: 4mph
The windiest month (with the highest average wind speed) is April (4.9mph).
The calmest month (with the lowest average wind speed) is December (4mph).
Average humidity in December
Saint Regis, MT
- Average humidity in December: 91%
The month with the highest relative humidity is January (93%).
The months with the lowest relative humidity are July and August (53%).
Average rainfall in December
Saint Regis, MT
- Average rainfall in December: 2.99"
The wettest month (with the highest rainfall) is January (3.11").
The driest month (with the least rainfall) is August (0.39").
Average rainfall days in December
Saint Regis, MT
- Average rainfall days in December: 12.2 days
The month with the highest number of rainy days is March (19.9 days).
The month with the least rainy days is August (5.9 days).
Average snowfall in December
Saint Regis, MT
- Average snowfall in December: 13.35"
The month with the highest snowfall is February (15.12").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Saint Regis, MT
- Average snowfall days in December: 20.4 days
The month with the highest number of snowfall days is December (20.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Saint Regis, 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 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Saint Regis, MT
- Average sunshine days in December: 8.1 days
The months with the most sunshine days are July and August (23.3 days).
The month with the least sunshine days is March (5.8 days).
Average UV index in December
Saint Regis, 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
Saint Regis, MT
- Average cloud cover in December: 63
The month with the most cloud cover is February (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in December
Saint Regis, MT
- Average visibility in December: 3mi
The months with the highest visibility are June, July, August and September (6mi).
The months with the lowest visibility are January, February and December (3mi).
