December weather forecastMonticello, MN
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Monticello, Minnesota, with an average temperature varying between 14.5°F (-9.7°C) and 24.1°F (-4.4°C).Temperature
The beginning of December marks a clear shift in the average high-temperature, receding from November's icy 39.6°F (4.2°C) to a freezing cold 24.1°F (-4.4°C). Monticello's temperature lowers to a mean of 14.5°F (-9.7°C) during the nights in December.Humidity
In Monticello, the average relative humidity in December is 87%.Rainfall
In December, the rain falls for 3.9 days. Throughout December, 0.94" (24mm) of precipitation is accumulated. In Monticello, Minnesota, during the entire year, the rain falls for 119.9 days and collects up to 20.51" (521mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 12 days and accumulates 4.45" (113mm) of snow.Daylight
With an average of 8h and 48min of daylight, December has the shortest days of the year in Monticello.On the first day of the month, sunrise is at 7:34 am and sunset at 4:34 pm. On the last day of December, sunrise is at 7:54 am and sunset at 4:42 pm CST.
Sunshine
In December, the average sunshine is 3.5h.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 estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: An average UV index of 1 in December transforms into this advice:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The solar radiation around mid-day is intense; avoid the Sun and stay safe. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Foresee this! The reflection from snow can nearly double the intensity of UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Monticello, MN
- Average high temperature in December: 24.1°F
The warmest month (with the highest average high temperature) is July (80.1°F).
The month with the lowest average high temperature is January (19.2°F).
- Average low temperature in December: 14.5°F
The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (6.6°F).
Average pressure in December
Monticello, MN
- Average pressure in December: 30.1"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Monticello, MN
- Average wind speed in December: 8.2mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6.8mph).
Average humidity in December
Monticello, MN
- Average humidity in December: 87%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is April (70%).
Average rainfall in December
Monticello, MN
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in December
Monticello, MN
- Average rainfall days in December: 3.9 days
The month with the highest number of rainy days is June (16.6 days).
The month with the least rainy days is January (2.4 days).
Average snowfall in December
Monticello, MN
- Average snowfall in December: 4.45"
The month with the highest snowfall is December (4.45").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Monticello, MN
- Average snowfall days in December: 12 days
The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Monticello, MN
- Average daylight in December: 8h and 48min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 3h and 30min
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 24min).
Average sunshine days in December
Monticello, MN
- Average sunshine days in December: 17.6 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (10.6 days).
Average UV index in December
Monticello, MN
- Average UV index in December: 1
The months with the highest UV index are June and 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
Monticello, MN
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 31).
Average visibility in December
Monticello, MN
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The month with the lowest visibility is January (4mi).
