December weather forecastValley Springs, SD
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Valley Springs, South Dakota, with an average temperature ranging between min 15.3°F (-9.3°C) and max 27.3°F (-2.6°C).Temperature
Valley Springs in December showcases a distinct temperature shift, moving from an average high of a frosty 43°F (6.1°C) in November to a freezing cold 27.3°F (-2.6°C). The average temperature in Valley Springs, South Dakota, during December nights dips to 15.3°F (-9.3°C).Humidity
In Valley Springs, South Dakota, the average relative humidity in December is 84%.Rainfall
In December, the rain falls for 3.4 days. Throughout December, 0.91" (23mm) of precipitation is accumulated. In Valley Springs, South Dakota, during the entire year, the rain falls for 112.2 days and collects up to 20.67" (525mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Valley Springs, during December, snow falls for 10 days and regularly aggregates up to 2.91" (74mm) of snow. In Valley Springs, during the entire year, snow falls for 42.1 days and aggregates up to 18.94" (481mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 0min of daylight.On the first day of December in Valley Springs, sunrise is at 7:39 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 7:59 am and sunset at 4:59 pm CST.
Sunshine
The average sunshine in December is 4.3h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the UV index of 2 transforms into the following advice:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Valley Springs, SD
- Average high temperature in December: 27.3°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (22.8°F).
- Average low temperature in December: 15.3°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).
Average pressure in December
Valley Springs, 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
Valley Springs, SD
- Average wind speed in December: 10mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (8mph).
Average humidity in December
Valley Springs, SD
- Average humidity in December: 84%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (67%).
Average rainfall in December
Valley Springs, SD
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is November (0.63").
Average rainfall days in December
Valley Springs, SD
- Average rainfall days in December: 3.4 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (2.2 days).
Average snowfall in December
Valley Springs, SD
- Average snowfall in December: 2.91"
The month with the highest snowfall is February (4.61").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Valley Springs, SD
- Average snowfall days in December: 10 days
The month with the highest number of snowfall days is December (10 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Valley Springs, 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 18min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Valley Springs, SD
- Average sunshine days in December: 19.3 days
The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in December
Valley Springs, SD
- 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, October, November and December (UV index 2).
Average cloud cover in December
Valley Springs, SD
- Average cloud cover in December: 53
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Valley Springs, SD
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
