December weather forecastMission Hill, SD
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Mission Hill, South Dakota, with an average temperature ranging between max 29.8°F (-1.2°C) and min 18°F (-7.8°C).Temperature
As December arrives, Mission Hill's weather displays a notable decrease in high-temperatures, falling from November's frosty 45.9°F (7.7°C) to a subzero cold 29.8°F (-1.2°C). During December, Mission Hill experiences a consistent low-temperature average of 18°F (-7.8°C).Humidity
In Mission Hill, the average relative humidity in December is 82%.Rainfall
In December, the rain falls for 3.7 days. Throughout December, 1.18" (30mm) of precipitation is accumulated. Throughout the year, there are 117.9 rainfall days, and 21.93" (557mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. December is the month with the most snowfall. Snow falls for 8.1 days and accumulates 2.95" (75mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:41 am and sunset at 4:55 pm. On the last day of December, sunrise is at 8:00 am and sunset at 5:04 pm CST.
Sunshine
The average sunshine in December is 4.7h.UV index
In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the maximum UV index of 2 translates into these guidelines:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mission Hill, SD
- Average high temperature in December: 29.8°F
The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (26.8°F).
- Average low temperature in December: 18°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (12.9°F).
Average pressure in December
Mission Hill, SD
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Mission Hill, SD
- Average wind speed in December: 10.3mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).
Average humidity in December
Mission Hill, SD
- Average humidity in December: 82%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (64%).
Average rainfall in December
Mission Hill, SD
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is May (3.78").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days in December
Mission Hill, SD
- Average rainfall days in December: 3.7 days
The month with the highest number of rainy days is June (17.4 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in December
Mission Hill, SD
- Average snowfall in December: 2.95"
The month with the highest snowfall is December (2.95").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Mission Hill, SD
- Average snowfall days in December: 8.1 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, August and September (0 days).
Average daylight in December /
Average sunshine in December
Mission Hill, SD
- Average daylight in December: 9h and 6min
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 6min).
- Average sunshine in December: 4h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Mission Hill, SD
- Average sunshine days in December: 21.3 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in December
Mission Hill, SD
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Mission Hill, SD
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in December
Mission Hill, 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).
