December weather forecastMonarch, MT
December
Weather in December
December, the first month of the winter in Monarch, is still a freezing cold month, with an average temperature varying between 24.3°F (-4.3°C) and 11.7°F (-11.3°C).Temperature
Monarch, Montana, experiences its lowest temperatures in December, with an average peak of 24.3°F (-4.3°C) and a low of 11.7°F (-11.3°C).Humidity
In December, the average relative humidity is 85%.Rainfall
The month with the least rainfall is December, when the rain falls for 6.5 days and typically collects 1.26" (32mm) of precipitation.Snowfall
January through June, August through December are months with snowfall. In Monarch, Montana, in December, snow falls for 17.9 days, with typically accumulated 10" (254mm) of snow. Throughout the year, there are 137.4 snowfall days, and 110.08" (2796mm) of snow is accumulated.Daylight
With an average of 8h and 36min of daylight, December has the shortest days of the year in Monarch.On the first day of the month, sunrise is at 7:49 am and sunset at 4:35 pm. On the last day of December, sunrise is at 8:09 am and sunset at 4:44 pm MST.
Sunshine
The average sunshine in December is 5h.UV index
In Monarch, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for average individuals.Note: In December, an average UV index of 2 transforms into the following instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Be on the lookout! Nearly twofold UV radiation 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
Monarch, MT
- Average high temperature in December: 24.3°F
The warmest month (with the highest average high temperature) is July (73.9°F).
The month with the lowest average high temperature is December (24.3°F).
- Average low temperature in December: 11.7°F
The months with the highest average low temperature are July and August (48.2°F).
The coldest month (with the lowest average low temperature) is December (11.7°F).
Average pressure in December
Monarch, MT
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Monarch, MT
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Monarch, MT
- Average humidity in December: 85%
The month with the highest relative humidity is February (87%).
The month with the lowest relative humidity is August (53%).
Average rainfall in December
Monarch, MT
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is May (4.69").
The driest month (with the least rainfall) is December (1.26").
Average rainfall days in December
Monarch, MT
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is June (20.9 days).
The month with the least rainy days is February (5.2 days).
Average snowfall in December
Monarch, MT
- Average snowfall in December: 10"
The month with the highest snowfall is April (19.29").
The month with the least snowfall is July (0").
Average snowfall days in December
Monarch, MT
- Average snowfall days in December: 17.9 days
The month with the highest number of snowfall days is March (20.3 days).
The month with the least snowfall days is July (0 days).
Average daylight in December /
Average sunshine in December
Monarch, MT
- Average daylight in December: 8h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 30min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Monarch, MT
- Average sunshine days in December: 12.1 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is May (4.7 days).
Average UV index in December
Monarch, MT
- Average UV index in December: 2
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in December
Monarch, MT
- Average cloud cover in December: 51
The month with the most cloud cover is February (Cloud cover 57).
The months with the least cloud cover are July and August (Cloud cover 18).
Average visibility in December
Monarch, MT
- Average visibility in December: 5mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is February (4mi).
