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
December is characterized by a reduction in the average high-temperature, from a chilly 43°F (6.1°C) in November to a freezing cold 30.2°F (-1°C). December brings with it a nighttime average temperature of 17.6°F (-8°C) in Vananda, Montana.Humidity
In Vananda, the average relative humidity in December is 76%.Rainfall
In Vananda, during December, the rain falls for 6.5 days and regularly aggregates up to 0.67" (17mm) of precipitation. Throughout the year, there are 121.7 rainfall days, and 13.23" (336mm) of precipitation is accumulated.Snowfall
Months with snowfall in Vananda are January through May, October through December. In Vananda, in December, snow falls for 11.6 days, with typically accumulated 3.94" (100mm) of snow. Throughout the year, in Vananda, Montana, there are 56.6 snowfall days, and 21.06" (535mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 42min of daylight.On the first day of the month, sunrise is at 7:31 am and sunset at 4:23 pm. On the last day of December, in Vananda, sunrise is at 7:51 am and sunset at 4:31 pm MST.
Sunshine
In Vananda, the average sunshine in December is 5.4h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the maximum UV index of 1 translates into these guidelines:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Vananda?
What is the average humidity in December in Vananda?
How many days does it rain in December in Vananda?
How many days does it snow in December in Vananda?
What is the month with the shortest days in Vananda?
What is the average length of the day in December in Vananda?
When is the sunrise / sunset in December in Vananda?
How long on average sun shines in December in Vananda?
What is the month with the lowest UV index in Vananda?
What is the UV index intensity in December in Vananda?
Average temperature in December
Vananda, MT
- Average high temperature in December: 30.2°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 17.6°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.3°F).
Average pressure in December
Vananda, MT
- Average pressure in December: 30.12"Hg
The months with the highest atmospheric pressure are January and February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Vananda, MT
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is April (10.9mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).
Average humidity in December
Vananda, MT
- Average humidity in December: 76%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is August (38%).
Average rainfall in December
Vananda, MT
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is May (2.05").
The driest month (with the least rainfall) is November (0.63").
Average rainfall days in December
Vananda, MT
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is May (15.1 days).
The months with the least rainy days are January, February and December (6.5 days).
Average snowfall in December
Vananda, MT
- Average snowfall in December: 3.94"
The month with the highest snowfall is February (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Vananda, MT
- Average snowfall days in December: 11.6 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Vananda, 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: 5h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 12min).
Average sunshine days in December
Vananda, MT
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is April (11.9 days).
Average UV index in December
Vananda, 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
Vananda, MT
- Average cloud cover in December: 44
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 15).
Average visibility in December
Vananda, 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).
Vananda, Montana, USA
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