December weather forecastLavina, MT
December
Weather in December
December, the first month of the winter in Lavina, is also a subzero cold month, with an average temperature fluctuating between 31.1°F (-0.5°C) and 18.5°F (-7.5°C).Temperature
Lavina's December weather reaches an average high of 31.1°F (-0.5°C) and an average low of 18.5°F (-7.5°C), making it the coldest month.Humidity
The average relative humidity in December in Lavina is 74%.Rainfall
In Lavina, during December, the rain falls for 5.5 days and regularly aggregates up to 0.59" (15mm) of precipitation. In Lavina, Montana, during the entire year, the rain falls for 114.3 days and collects up to 12.13" (308mm) of precipitation.Snowfall
January through May, September through December are months with snowfall in Lavina. In December, in Lavina, Montana, it is snowing for 9.6 days. Throughout December, 2.72" (69mm) of snow is accumulated. In Lavina, during the entire year, snow falls for 53.5 days and aggregates up to 18.58" (472mm) of snow.Daylight
The month with the shortest days in Lavina 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 4:31 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 4:39 pm MST.
Sunshine
The months with the least sunshine in Lavina are February and December, with an average of 5.2h of sunshine.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 1 in December translates into the following instructions:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. When the Sun is at its strongest around midday, find shade and limit exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lavina, MT
- Average high temperature in December: 31.1°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (31.1°F).
- Average low temperature in December: 18.5°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is February (18°F).
Average pressure in December
Lavina, MT
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Lavina, MT
- Average wind speed in December: 11mph
The windiest month (with the highest average wind speed) is January (11.2mph).
The calmest months (with the lowest average wind speed) are July and August (8.5mph).
Average humidity in December
Lavina, MT
- Average humidity in December: 74%
The month with the highest relative humidity is January (77%).
The month with the lowest relative humidity is August (39%).
Average rainfall in December
Lavina, MT
- Average rainfall in December: 0.59"
The wettest month (with the highest rainfall) is May (1.97").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in December
Lavina, MT
- Average rainfall days in December: 5.5 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (4.6 days).
Average snowfall in December
Lavina, MT
- Average snowfall in December: 2.72"
The month with the highest snowfall is February (3.78").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Lavina, MT
- Average snowfall days in December: 9.6 days
The month with the highest number of snowfall days is February (11.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Lavina, MT
- Average daylight in December: 8h and 42min
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 12min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The months with the least sunshine are February and December (Average sunshine: 5h and 12min).
Average sunshine days in December
Lavina, MT
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is September (19.5 days).
The month with the least sunshine days is April (12.8 days).
Average UV index in December
Lavina, 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
Lavina, MT
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 47).
The months with the least cloud cover are July and August (Cloud cover 16).
Average visibility in December
Lavina, 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).
