December weather forecastMentor, MN
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Mentor, Minnesota, with temperature in the range of an average high of 18.5°F (-7.5°C) and an average low of 7.5°F (-13.6°C).Temperature
With the onset of December, Mentor experiences a noticeable temperature shift, with the average high-temperature receding from a cold 34.7°F (1.5°C) in November to a freezing cold 18.5°F (-7.5°C). An average low-temperature of 7.5°F (-13.6°C) marks the nights throughout December.Humidity
The average relative humidity in December is 90%.Rainfall
In Mentor, Minnesota, in December, it is raining for 2.4 days, with typically 0.91" (23mm) of accumulated precipitation. In Mentor, during the entire year, the rain falls for 104 days and collects up to 18.03" (458mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. December is the month with the most snowfall in Mentor. Snow falls for 15.6 days and accumulates 5.35" (136mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 30min of daylight.On the first day of the month, sunrise is at 7:52 am and sunset at 4:34 pm. On the last day of December, in Mentor, sunrise is at 8:13 am and sunset at 4:42 pm CST.
Sunshine
In December, the average sunshine is 2.9h.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 health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum UV index of 1 in December translates into the following recommendations:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Take to heart! Snow reflection can almost magnify 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
Mentor, MN
- Average high temperature in December: 18.5°F
The warmest months (with the highest average high temperature) are July and August (79°F).
The month with the lowest average high temperature is January (14.4°F).
- Average low temperature in December: 7.5°F
The month with the highest average low temperature is July (58.8°F).
The coldest month (with the lowest average low temperature) is January (0°F).
Average pressure in December
Mentor, MN
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Mentor, MN
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is October (10.1mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).
Average humidity in December
Mentor, 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 August (65%).
Average rainfall in December
Mentor, MN
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is June (3.11").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days in December
Mentor, MN
- Average rainfall days in December: 2.4 days
The month with the highest number of rainy days is June (15.9 days).
The month with the least rainy days is January (1.7 days).
Average snowfall in December
Mentor, MN
- Average snowfall in December: 5.35"
The month with the highest snowfall is December (5.35").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mentor, MN
- Average snowfall days in December: 15.6 days
The month with the highest number of snowfall days is January (15.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Mentor, 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: 2h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).
Average sunshine days in December
Mentor, MN
- Average sunshine days in December: 16 days
The month with the most sunshine days is August (19.6 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in December
Mentor, 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
Mentor, MN
- Average cloud cover in December: 70
The month with the most cloud cover is January (Cloud cover 74).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in December
Mentor, MN
- Average visibility in December: 4mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (4mi).
