December weather forecastColman, SD
December
Weather in December
December, the first month of the winter in Colman, is also a subzero cold month, with temperature in the range of an average high of 25.7°F (-3.5°C) and an average low of 14.4°F (-9.8°C).Temperature
The shift into December brings a noticeable decrease in the average high-temperature, falling from a cold 41.7°F (5.4°C) in November to a freezing cold 25.7°F (-3.5°C). An average minimum temperature of 14.4°F (-9.8°C) is recorded during the month of December.Humidity
In Colman, the average relative humidity in December is 86%.Rainfall
In Colman, in December, it is raining for 3.8 days, with typically 0.98" (25mm) of accumulated precipitation. In Colman, during the entire year, the rain falls for 113.8 days and collects up to 20.59" (523mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 11.6 days and typically aggregates up to 4.8" (122mm) of snow.Daylight
December has the shortest days of the year in Colman, with an average of 9h and 0min of daylight.On the first day of December, sunrise is at 7:42 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 4:59 pm CST.
Sunshine
In Colman, the average sunshine in December is 4.1h.UV index
The months with the lowest UV index in Colman, South Dakota, are January, November and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: In December, the maximum UV index of 1 suggests this advice:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Colman, SD
- Average high temperature in December: 25.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (21.6°F).
- Average low temperature in December: 14.4°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (7.7°F).
Average pressure in December
Colman, SD
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Colman, SD
- Average wind speed in December: 10.6mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).
Average humidity in December
Colman, SD
- 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
Colman, SD
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is June (3.15").
The driest months (with the least rainfall) are January and November (0.63").
Average rainfall days in December
Colman, SD
- Average rainfall days in December: 3.8 days
The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is February (2.4 days).
Average snowfall in December
Colman, SD
- Average snowfall in December: 4.8"
The month with the highest snowfall is December (4.8").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Colman, SD
- Average snowfall days in December: 11.6 days
The month with the highest number of snowfall days is January (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Colman, SD
- 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 30min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Colman, SD
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in December
Colman, SD
- 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, November and December (UV index 1).
Average cloud cover in December
Colman, SD
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in December
Colman, SD
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
