December weather forecastRock Creek, MN
December
Weather in December
December, the first month of the winter in Rock Creek, is still a freezing cold month, with temperature in the range of an average high of 23.9°F (-4.5°C) and an average low of 13.3°F (-10.4°C).Temperature
With the transition into December, Rock Creek experiences a significant decrease in average high-temperatures, moving down from a cold 38.3°F (3.5°C) in November to a freezing cold 23.9°F (-4.5°C). The temperature lowers to an average of 13.3°F (-10.4°C) during December nights.Humidity
In December, the average relative humidity in Rock Creek is 88%.Rainfall
In Rock Creek, during December, the rain falls for 3.7 days and regularly aggregates up to 1.1" (28mm) of precipitation. Throughout the year, in Rock Creek, there are 118.5 rainfall days, and 20.55" (522mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 13.8 days and accumulates 5.28" (134mm) of snow.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:33 am and sunset at 4:29 pm. On the last day of December, sunrise is at 7:52 am and sunset at 4:37 pm CST.
Sunshine
The average sunshine in December is 3.2h.UV index
The months with the lowest UV index in Rock Creek are January, February, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The daily high UV index of 1 during December translates into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rock Creek, MN
- Average high temperature in December: 23.9°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (18°F).
- Average low temperature in December: 13.3°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in December
Rock Creek, MN
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is February (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Rock Creek, MN
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.7mph).
Average humidity in December
Rock Creek, MN
- Average humidity in December: 88%
The month with the highest relative humidity is January (91%).
The months with the lowest relative humidity are April and May (73%).
Average rainfall in December
Rock Creek, MN
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in December
Rock Creek, MN
- Average rainfall days in December: 3.7 days
The month with the highest number of rainy days is June (16.9 days).
The month with the least rainy days is February (2.2 days).
Average snowfall in December
Rock Creek, MN
- Average snowfall in December: 5.28"
The month with the highest snowfall is December (5.28").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Rock Creek, MN
- Average snowfall days in December: 13.8 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, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rock Creek, 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 6min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).
Average sunshine days in December
Rock Creek, MN
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is September (16.7 days).
The month with the least sunshine days is June (11.1 days).
Average UV index in December
Rock Creek, 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
Rock Creek, MN
- Average cloud cover in December: 66
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Rock Creek, 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).
