December weather forecastLarslan, MT
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Larslan, Montana, with an average temperature varying between 24.6°F (-4.1°C) and 12.7°F (-10.7°C).Temperature
In December, the meteorological conditions alter, with the average high-temperature shifting from a cold 38.3°F (3.5°C) in November to a subzero cold 24.6°F (-4.1°C). The low-temperature in Larslan averages to a frigid cold 12.7°F (-10.7°C) during the nights of December.Humidity
The average relative humidity in December is 84%.Rainfall
In Larslan, Montana, during December, the rain falls for 3 days and regularly aggregates up to 0.43" (11mm) of precipitation. In Larslan, during the entire year, the rain falls for 90.8 days and collects up to 11.1" (282mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 8.6 days and typically aggregates up to 2.6" (66mm) of snow.Daylight
With an average of 8h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:36 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 4:19 pm MST.
Sunshine
In December, the average sunshine in Larslan is 4.9h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 1 in December interprets into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. During bright days, sunglasses that offer UVA and UVB defense are recommended. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Larslan, MT
- Average high temperature in December: 24.6°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is February (23.7°F).
- Average low temperature in December: 12.7°F
The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is February (10.2°F).
Average pressure in December
Larslan, MT
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is February (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in December
Larslan, MT
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is February (8.8mph).
Average humidity in December
Larslan, MT
- Average humidity in December: 84%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is August (42%).
Average rainfall in December
Larslan, MT
- Average rainfall in December: 0.43"
The wettest month (with the highest rainfall) is June (2.01").
The driest months (with the least rainfall) are January and February (0.35").
Average rainfall days in December
Larslan, MT
- Average rainfall days in December: 3 days
The month with the highest number of rainy days is May (13.8 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in December
Larslan, MT
- Average snowfall in December: 2.6"
The month with the highest snowfall is December (2.6").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Larslan, MT
- Average snowfall days in December: 8.6 days
The month with the highest number of snowfall days is February (9.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Larslan, MT
- Average daylight in December: 8h and 24min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in December: 4h and 54min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Larslan, MT
- Average sunshine days in December: 20.4 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.8 days).
Average UV index in December
Larslan, MT
- Average UV index in December: 1
The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Larslan, MT
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 16).
Average visibility in December
Larslan, 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).
