December weather forecastRosebud, SD
December
Weather in December
December, the first month of the winter in Rosebud, is still a freezing cold month, with temperature in the range of an average high of 31.8°F (-0.1°C) and an average low of 20.1°F (-6.6°C).Temperature
December brings a significant decrease in the average high-temperature, moving down from a frosty 46.4°F (8°C) in November to a subzero cold 31.8°F (-0.1°C). During December nights, Rosebud witnesses a consistent average temperature of 20.1°F (-6.6°C).Humidity
The average relative humidity in December in Rosebud is 76%.Rainfall
In Rosebud, South Dakota, in December, during 3.7 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, there are 109.2 rainfall days, and 16.89" (429mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall in Rosebud. December is the month with the most snowfall in Rosebud. Snow falls for 7.1 days and accumulates 2.76" (70mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 0min of daylight.On the first day of the month, sunrise is at 7:56 am and sunset at 5:09 pm. On the last day of December, sunrise is at 8:15 am and sunset at 5:18 pm CST.
Sunshine
In December, the average sunshine is 5.5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Rosebud. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the average person.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A hat with a broad brim is indispensable, filtering out up to half of UV rays. On your guard! Snow's reflection 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
Rosebud, SD
- Average high temperature in December: 31.8°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in December: 20.1°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (18.5°F).
Average pressure in December
Rosebud, SD
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Rosebud, SD
- Average wind speed in December: 11.9mph
The windiest month (with the highest average wind speed) is April (13.1mph).
The calmest months (with the lowest average wind speed) are July and August (10.6mph).
Average humidity in December
Rosebud, SD
- Average humidity in December: 76%
The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is September (56%).
Average rainfall in December
Rosebud, SD
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is May (2.6").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in December
Rosebud, SD
- Average rainfall days in December: 3.7 days
The month with the highest number of rainy days is May (15.7 days).
The month with the least rainy days is January (2.4 days).
Average snowfall in December
Rosebud, SD
- Average snowfall in December: 2.76"
The month with the highest snowfall is December (2.76").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Rosebud, SD
- Average snowfall days in December: 7.1 days
The month with the highest number of snowfall days is January (9.7 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Rosebud, SD
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 5h and 30min
The month with the most sunshine is July (Average sunshine: 11h and 12min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in December
Rosebud, SD
- Average sunshine days in December: 20.4 days
The month with the most sunshine days is December (20.4 days).
The month with the least sunshine days is June (11.2 days).
Average UV index in December
Rosebud, SD
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Rosebud, SD
- Average cloud cover in December: 41
The month with the most cloud cover is February (Cloud cover 44).
The months with the least cloud cover are July, August and September (Cloud cover 21).
Average visibility in December
Rosebud, 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).
