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
The start of December signals a considerable reduction in the average high-temperature, receding from an icy 34.7°F (1.5°C) in November to a subzero cold 20.3°F (-6.5°C). During December, the nighttime temperature averages to an extreme cold 9.5°F (-12.5°C).Humidity
The average relative humidity in December is 90%.Rainfall
In Cass Lake, during December, the rain falls for 2.2 days and regularly aggregates up to 1.02" (26mm) of precipitation. Throughout the year, there are 105.3 rainfall days, and 19.69" (500mm) of precipitation is accumulated.Snowfall
Months with snowfall in Cass Lake are January through May, October through December. The month with the most snowfall is December, when snow falls for 17.7 days and typically aggregates up to 7.28" (185mm) of snow.Daylight
With an average of 8h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:45 am and sunset at 4:29 pm. On the last day of December, in Cass Lake, Minnesota, sunrise is at 8:05 am and sunset at 4:37 pm CST.
Sunshine
In Cass Lake, the average sunshine in December is 2.4h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 1 during December translates into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How much does it rain in December?
What is the snowiest month?
How much does it snow in Cass Lake in December?
What is the month with the shortest days?
How many hours of daylight does Cass Lake have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Cass Lake have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Cass Lake, MN
- Average high temperature in December: 20.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (16.2°F).
- Average low temperature in December: 9.5°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (1.6°F).
Average pressure in December
Cass Lake, MN
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Cass Lake, MN
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is October (8.2mph).
The calmest month (with the lowest average wind speed) is August (6.9mph).
Average humidity in December
Cass Lake, MN
- Average humidity in December: 90%
The months with the highest relative humidity are January and February (93%).
The month with the lowest relative humidity is May (70%).
Average rainfall in December
Cass Lake, MN
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January and February (0.75").
Average rainfall days in December
Cass Lake, MN
- Average rainfall days in December: 2.2 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in December
Cass Lake, MN
- Average snowfall in December: 7.28"
The month with the highest snowfall is December (7.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Cass Lake, MN
- Average snowfall days in December: 17.7 days
The month with the highest number of snowfall days is January (18.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Cass Lake, MN
- Average daylight in December: 8h and 3min
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 30min).
- Average sunshine in December: 2h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 0min).
Average sunshine days in December
Cass Lake, MN
- Average sunshine days in December: 14.5 days
The month with the most sunshine days is August (17.2 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in December
Cass Lake, MN
- Average UV index in December: 1
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in December
Cass Lake, MN
- Average cloud cover in December: 77
The month with the most cloud cover is January (Cloud cover 80).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in December
Cass Lake, MN
- Average visibility in December: 4mi
The months with the highest visibility are May, June, July, August and September (6mi).
The months with the lowest visibility are January, February, March and December (4mi).
Cass Lake, Minnesota, USA
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