December weather forecastTruman, MN
December
Weather in December
December, the first month of the winter in Truman, is also a subzero cold month, with an average temperature fluctuating between 16.2°F (-8.8°C) and 27°F (-2.8°C).Temperature
The shift from November to December brings a noticeable decrease in the average high-temperature, dropping from a wintry 42.4°F (5.8°C) to a subzero cold 27°F (-2.8°C). December in Truman witnesses an average low-temperature hovering around 16.2°F (-8.8°C).Humidity
In Truman, the average relative humidity in December is 86%.Rainfall
In Truman, Minnesota, in December, during 5.1 rainfall days, 1.38" (35mm) of precipitation is typically accumulated. In Truman, Minnesota, during the entire year, the rain falls for 130.4 days and collects up to 24.65" (626mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Truman, in December, snow falls for 13.4 days, with typically accumulated 3.9" (99mm) of snow. In Truman, during the entire year, snow falls for 57.5 days and aggregates up to 23.31" (592mm) of snow.Daylight
December has the shortest days of the year in Truman, Minnesota, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:32 am and sunset at 4:41 pm. On the last day of December, in Truman, sunrise is at 7:51 am and sunset at 4:50 pm CST.
Sunshine
The average sunshine in December in Truman is 4.1h.UV index
In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 2 transforms into these recommendations:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Truman, MN
- Average high temperature in December: 27°F
The warmest month (with the highest average high temperature) is July (80.2°F).
The month with the lowest average high temperature is January (22.1°F).
- Average low temperature in December: 16.2°F
The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).
Average pressure in December
Truman, MN
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Truman, MN
- Average wind speed in December: 10.3mph
The windiest month (with the highest average wind speed) is February (10.8mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in December
Truman, MN
- Average humidity in December: 86%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (68%).
Average rainfall in December
Truman, MN
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is June (4.02").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in December
Truman, MN
- Average rainfall days in December: 5.1 days
The month with the highest number of rainy days is June (18.8 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in December
Truman, MN
- Average snowfall in December: 3.9"
The month with the highest snowfall is February (6.02").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Truman, MN
- Average snowfall days in December: 13.4 days
The month with the highest number of snowfall days is January (13.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Truman, MN
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 4h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Truman, MN
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is June (8.5 days).
Average UV index in December
Truman, 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
Truman, MN
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are July and September (Cloud cover 31).
Average visibility in December
Truman, MN
- Average visibility in December: 5mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).





