December weather forecastGrand Marais, MN
December weather for Grand Marais, Minnesota: The month with the shortest days in Grand Marais is December, with an average of 8h and 30min of daylight. In Grand Marais, in December, during 17.1 snowfall days, 6.5" (165mm) of snow is typically accumulated.
December
Weather in December
December brings winter in full force in Grand Marais, somewhat colder than November. The city experiences its shortest daylight hours and an increase in snowfall, setting the landscape for a winter wonderland. The average high temperature in December dips to 23.7°F (-4.6°C). Despite the chill, the festive spirit elevates the mood of the city, making it a unique month to explore Grand Marais.Temperature
As November shifts into December in Grand Marais, Minnesota, a slight alteration in temperatures is observed, with average highs reducing from a wintry 35.2°F (1.8°C) to a freezing cold 23.7°F (-4.6°C). Grand Marais, during December nights, records a temperature marginally cooler than the daytime average, at a still subzero cold 15.6°F (-9.1°C).Humidity
The average relative humidity in December in Grand Marais, Minnesota, is 85%.Rainfall
In Grand Marais, in December, it is raining for 7.1 days, with typically 1.54" (39mm) of accumulated precipitation. In Grand Marais, during the entire year, the rain falls for 134.4 days and collects up to 21.42" (544mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. December is the month with the most snowfall. Snow falls for 17.1 days and accumulates 6.5" (165mm) of snow.Daylight
The month with the shortest days in Grand Marais is December, with an average of 8h and 30min of daylight.On the first day of December in Grand Marais, sunrise is at 7:29 am and sunset at 4:11 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 4:19 pm CST.
Sunshine
In Grand Marais, the average sunshine in December is 3.4h.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 average person.Note: An average UV index of 1 in December transforms into this advice:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grand Marais, MN
- Average high temperature in December: 23.7°F
The warmest month (with the highest average high temperature) is August (68°F).
The month with the lowest average high temperature is January (18.3°F).
- Average low temperature in December: 15.6°F
The month with the highest average low temperature is August (56.5°F).
The coldest month (with the lowest average low temperature) is January (8.1°F).
Average pressure in December
Grand Marais, MN
- Average pressure in December: 30.06"Hg
The months with the highest atmospheric pressure are February and March (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Grand Marais, MN
- Average wind speed in December: 11.6mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is July (7.2mph).
Average humidity in December
Grand Marais, MN
- Average humidity in December: 85%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is May (74%).
Average rainfall in December
Grand Marais, MN
- Average rainfall in December: 1.54"
The wettest month (with the highest rainfall) is July (2.36").
The driest month (with the least rainfall) is February (1.02").
Average rainfall days in December
Grand Marais, MN
- Average rainfall days in December: 7.1 days
The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in December
Grand Marais, MN
- Average snowfall in December: 6.5"
The month with the highest snowfall is December (6.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Grand Marais, MN
- Average snowfall days in December: 17.1 days
The month with the highest number of snowfall days is January (18.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grand Marais, MN
- Average daylight in December: 8h and 30min
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: 3h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 18min).
Average sunshine days in December
Grand Marais, MN
- Average sunshine days in December: 10.9 days
The month with the most sunshine days is September (15.2 days).
The month with the least sunshine days is January (10.3 days).
Average UV index in December
Grand Marais, MN
- 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
Grand Marais, MN
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility in December
Grand Marais, MN
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
