December weather forecastRoyalton, MN
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Royalton, Minnesota, with an average temperature fluctuating between 23°F (-5°C) and 12.6°F (-10.8°C).Temperature
The onset of December brings a distinct decrease in the average high-temperature, receding from a cold 37.8°F (3.2°C) in November to a freezing cold 23°F (-5°C). Throughout the month of December, the average temperature dips to an extreme cold 12.6°F (-10.8°C) at night.Humidity
In Royalton, Minnesota, the average relative humidity in December is 88%.Rainfall
In Royalton, during December, the rain falls for 3.2 days and regularly aggregates up to 0.91" (23mm) of precipitation. Throughout the year, there are 109.2 rainfall days, and 17.64" (448mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 14.7 days and typically aggregates up to 4.76" (121mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 42min of daylight.On the first day of December, sunrise is at 7:38 am and sunset at 4:34 pm. On the last day of the month, sunrise is at 7:58 am and sunset at 4:42 pm CST.
Sunshine
In Royalton, the average sunshine in December is 3.2h.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 value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: A daily high UV index of 1 in December leads to these guidelines:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. To guard against the harmful effects of the Sun, minimize exposure during midday. Stay sun-safe with clothing that is both closely woven and worn loosely. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Royalton, MN
- Average high temperature in December: 23°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (18.1°F).
- Average low temperature in December: 12.6°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (4.8°F).
Average pressure in December
Royalton, MN
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in December
Royalton, MN
- Average wind speed in December: 7.5mph
The windiest month (with the highest average wind speed) is April (8.5mph).
The calmest month (with the lowest average wind speed) is August (6.7mph).
Average humidity in December
Royalton, MN
- Average humidity in December: 88%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is May (70%).
Average rainfall in December
Royalton, MN
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is June (3.15").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in December
Royalton, MN
- Average rainfall days in December: 3.2 days
The month with the highest number of rainy days is June (15.1 days).
The month with the least rainy days is February (2.5 days).
Average snowfall in December
Royalton, MN
- Average snowfall in December: 4.76"
The month with the highest snowfall is December (4.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Royalton, MN
- Average snowfall days in December: 14.7 days
The month with the highest number of snowfall days is January (17.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Royalton, MN
- Average daylight in December: 8h and 42min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 3h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Royalton, MN
- Average sunshine days in December: 16.5 days
The month with the most sunshine days is September (18.5 days).
The month with the least sunshine days is June (12.7 days).
Average UV index in December
Royalton, 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
Royalton, MN
- Average cloud cover in December: 67
The month with the most cloud cover is January (Cloud cover 71).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Royalton, MN
- Average visibility in December: 5mi
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 and February (4mi).
