December weather forecastVictor, SD
December
Weather in December
The first month of the winter, December, is still a freezing cold month in Victor, South Dakota, with an average temperature fluctuating between 12.6°F (-10.8°C) and 23.5°F (-4.7°C).Temperature
December's arrival sees a clear drop in the average high-temperature, decreasing from November's cold 39.6°F (4.2°C) to a freezing cold 23.5°F (-4.7°C). Throughout the month of December, Victor witnesses an average temperature of 12.6°F (-10.8°C).Humidity
In Victor, the average relative humidity in December is 86%.Rainfall
In December, the rain falls for 3.4 days. Throughout December, 0.94" (24mm) of precipitation is accumulated. Throughout the year, there are 107.9 rainfall days, and 20.63" (524mm) 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 11.5 days and accumulates 4.29" (109mm) of snow.Daylight
The month with the shortest days is December, with an average of 8h and 42min of daylight.On the first day of December, sunrise is at 7:49 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 8:08 am and sunset at 4:52 pm CST.
Sunshine
The average sunshine in December is 4h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high UV index of 1 in December translates into the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Victor, SD
- Average high temperature in December: 23.5°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 (19°F).
- Average low temperature in December: 12.6°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in December
Victor, SD
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in December
Victor, SD
- Average wind speed in December: 10.7mph
The windiest months (with the highest average wind speed) are April and October (10.9mph).
The calmest months (with the lowest average wind speed) are July and August (8.3mph).
Average humidity in December
Victor, SD
- Average humidity in December: 86%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is September (65%).
Average rainfall in December
Victor, SD
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is July (3.27").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in December
Victor, SD
- Average rainfall days in December: 3.4 days
The month with the highest number of rainy days is June (17.6 days).
The month with the least rainy days is February (1.6 days).
Average snowfall in December
Victor, SD
- Average snowfall in December: 4.29"
The month with the highest snowfall is December (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Victor, SD
- Average snowfall days in December: 11.5 days
The month with the highest number of snowfall days is December (11.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Victor, SD
- 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: 4h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Victor, SD
- Average sunshine days in December: 17.6 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in December
Victor, SD
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Victor, SD
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 60).
The months with the least cloud cover are July and August (Cloud cover 25).
Average visibility in December
Victor, 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).
