Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December's arrival signals a distinct temperature shift, dropping from a frosty 43.7°F (6.5°C) in November to a subzero cold 26.8°F (-2.9°C). An average nighttime temperature of 14.9°F (-9.5°C) is recorded in Orient during December.Humidity
The average relative humidity in December in Orient is 83%.Rainfall
In Orient, during December, the rain falls for 2.5 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, there are 97.3 rainfall days, and 16.73" (425mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Orient, in December, snow falls for 10 days, with typically accumulated 2.4" (61mm) of snow. Throughout the year, there are 47.1 snowfall days, and 16.06" (408mm) of snow is accumulated.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year.On the first day of December in Orient, sunrise is at 7:54 am and sunset at 4:56 pm. On the last day of the month, sunrise is at 8:14 am and sunset at 5:05 pm CST.
Sunshine
The average sunshine in December is 4.4h.UV index
The average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for average individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days in Orient?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Orient have in December?
What is the UV index reading in December?
Average temperature in December
Orient, SD
- Average high temperature in December: 26.8°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (23.4°F).
- Average low temperature in December: 14.9°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (9.1°F).
Average pressure in December
Orient, 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 (29.84"Hg).
Average wind speed in December
Orient, SD
- Average wind speed in December: 10.5mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is August (8.9mph).
Average humidity in December
Orient, SD
- Average humidity in December: 83%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is September (60%).
Average rainfall in December
Orient, SD
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is January (0.43").
Average rainfall days in December
Orient, SD
- Average rainfall days in December: 2.5 days
The month with the highest number of rainy days is June (15 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in December
Orient, SD
- Average snowfall in December: 2.4"
The month with the highest snowfall is February (4.21").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Orient, SD
- Average snowfall days in December: 10 days
The months with the highest number of snowfall days are January and February (10.1 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Orient, SD
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Orient, SD
- Average sunshine days in December: 20 days
The month with the most sunshine days is November (22.1 days).
The month with the least sunshine days is June (12.4 days).
Average UV index in December
Orient, 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 February (UV index 1).
Average cloud cover in December
Orient, SD
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 24).
Average visibility in December
Orient, 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).
Orient, South Dakota, USA
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