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
Seeley Lake notes the coldest temperatures in December, with a high average of 25.7°F (-3.5°C) and a low of 12°F (-11.1°C).Humidity
In Seeley Lake, the average relative humidity in December is 90%.Rainfall
In Seeley Lake, in December, it is raining for 9.5 days, with typically 1.81" (46mm) of accumulated precipitation. Throughout the year, there are 135.1 rainfall days, and 17.6" (447mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. In December, it is snowing for 21.2 days. Throughout December, 12.8" (325mm) of snow is accumulated. Throughout the year, there are 119.6 snowfall days, and 67.99" (1727mm) of snow is accumulated.Daylight
With an average of 8h and 36min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 8:00 am and sunset at 4:46 pm. On the last day of December, in Seeley Lake, sunrise is at 8:20 am and sunset at 4:54 pm MST.
Sunshine
In Seeley Lake, the average sunshine in December is 4.6h.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 threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In December, a daily UV index of 1 turns into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest time of year?
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Seeley Lake have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Seeley Lake have in December?
What is the month with the lowest UV index?
How high is the UV index in December in Seeley Lake?
Average temperature in December
Seeley Lake, MT
- Average high temperature in December: 25.7°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is December (25.7°F).
- Average low temperature in December: 12°F
The month with the highest average low temperature is August (44.2°F).
The coldest month (with the lowest average low temperature) is December (12°F).
Average pressure in December
Seeley Lake, MT
- Average pressure in December: 30.17"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in December
Seeley Lake, MT
- Average wind speed in December: 4.3mph
The windiest month (with the highest average wind speed) is April (5.2mph).
The calmest months (with the lowest average wind speed) are August and December (4.3mph).
Average humidity in December
Seeley Lake, MT
- Average humidity in December: 90%
The month with the highest relative humidity is January (92%).
The months with the lowest relative humidity are July and August (53%).
Average rainfall in December
Seeley Lake, MT
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is April (2.05").
The driest month (with the least rainfall) is July (0.59").
Average rainfall days in December
Seeley Lake, MT
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is August (6 days).
Average snowfall in December
Seeley Lake, MT
- Average snowfall in December: 12.8"
The month with the highest snowfall is January (14.17").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Seeley Lake, MT
- Average snowfall days in December: 21.2 days
The month with the highest number of snowfall days is January (21.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Seeley Lake, MT
- Average daylight in December: 8h and 4min
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 36min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
Seeley Lake, MT
- Average sunshine days in December: 9.6 days
The month with the most sunshine days is August (21.2 days).
The month with the least sunshine days is February (6 days).
Average UV index in December
Seeley Lake, MT
- Average UV index in December: 1
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Seeley Lake, MT
- Average cloud cover in December: 55
The months with the most cloud cover are January and February (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 14).
Average visibility in December
Seeley Lake, MT
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).
Seeley Lake, Montana, USA
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