December weather forecastMorristown, MN
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Morristown, Minnesota, with an average temperature varying between 15.1°F (-9.4°C) and 26.1°F (-3.3°C).Temperature
The changeover to December signals a significant decrease in the average high-temperature, dropping from an icy 41°F (5°C) in November to a freezing cold 26.1°F (-3.3°C). During the month of December, the temperature in Morristown falls to an average of 15.1°F (-9.4°C).Humidity
The average relative humidity in December is 88%.Rainfall
In Morristown, in December, during 4.1 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. In Morristown, during the entire year, the rain falls for 112.2 days and collects up to 15.98" (406mm) of precipitation.Snowfall
Months with snowfall in Morristown are January through May, October through December. In Morristown, in December, snow falls for 13.5 days, with typically accumulated 2.13" (54mm) of snow. Throughout the year, there are 59.7 snowfall days, and 13.7" (348mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:29 am and sunset at 4:36 pm. On the last day of December, sunrise is at 7:49 am and sunset at 4:45 pm CST.
Sunshine
In Morristown, the average sunshine in December is 3.6h.UV index
In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 2 in December translates into these instructions:
Prolonged exposure to sunlight rarely troubles the majority, but constant protection is vital for babies, children, and fair-skinned people. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Enhance your sun protection with tightly woven, yet airy clothing. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Morristown, MN
- Average high temperature in December: 26.1°F
The warmest month (with the highest average high temperature) is July (79.7°F).
The month with the lowest average high temperature is January (21°F).
- Average low temperature in December: 15.1°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (7.7°F).
Average pressure in December
Morristown, MN
- Average pressure in December: 30.11"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Morristown, MN
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in December
Morristown, MN
- Average humidity in December: 88%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Morristown, MN
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is June (2.68").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in December
Morristown, MN
- Average rainfall days in December: 4.1 days
The month with the highest number of rainy days is June (16 days).
The month with the least rainy days is February (1.8 days).
Average snowfall in December
Morristown, MN
- Average snowfall in December: 2.13"
The month with the highest snowfall is February (3.86").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Morristown, MN
- Average snowfall days in December: 13.5 days
The month with the highest number of snowfall days is January (14.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Morristown, MN
- Average daylight in December: 8h and 54min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 3h and 36min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Morristown, MN
- Average sunshine days in December: 16.4 days
The month with the most sunshine days is November (19 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in December
Morristown, MN
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in December
Morristown, MN
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Morristown, 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).
