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
The shift from November to December sees a distinct decrease in the average high-temperature, dropping from a frosty 45.5°F (7.5°C) to a subzero cold 29.1°F (-1.6°C). In the month of December, Lower Brule records a consistent average low-temperature of 16.9°F (-8.4°C).Humidity
The average relative humidity in December in Lower Brule is 82%.Rainfall
In Lower Brule, during December, the rain falls for 3.9 days and regularly aggregates up to 0.94" (24mm) of precipitation. Throughout the year, there are 107.6 rainfall days, and 17.83" (453mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. In December, it is snowing for 9.6 days. Throughout December, 3.07" (78mm) of snow is accumulated. Throughout the year, there are 50.9 snowfall days, and 17.87" (454mm) of snow is accumulated.Daylight
With an average of 8h and 54min of daylight, December has the shortest days of the year in Lower Brule, South Dakota.On the first day of the month, sunrise is at 7:53 am and sunset at 5:01 pm. On the last day of December, sunrise is at 8:13 am and sunset at 5:10 pm CST.
Sunshine
The average sunshine in December in Lower Brule is 4.9h.UV index
In Lower Brule, South Dakota, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum UV index of 2 during December leads to these instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
How cold is it in Lower Brule in December?
What is the average humidity in December in Lower Brule?
How many days does it rain in December in Lower Brule?
How many days does it snow in December in Lower Brule?
What is the month with the shortest days in Lower Brule?
What is the average length of the day in December in Lower Brule?
When are sunrise and sunset in December in Lower Brule?
How long on average sun shines in December in Lower Brule?
What is the UV index reading in December in Lower Brule?
Average temperature in December
Lower Brule, SD
- Average high temperature in December: 29.1°F
The warmest month (with the highest average high temperature) is July (88°F).
The month with the lowest average high temperature is January (26.1°F).
- Average low temperature in December: 16.9°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (12.6°F).
Average pressure in December
Lower Brule, 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 (29.84"Hg).
Average wind speed in December
Lower Brule, SD
- Average wind speed in December: 10mph
The windiest month (with the highest average wind speed) is April (11.3mph).
The calmest month (with the lowest average wind speed) is August (9.1mph).
Average humidity in December
Lower Brule, SD
- Average humidity in December: 82%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is September (58%).
Average rainfall in December
Lower Brule, SD
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is June (3.03").
The driest month (with the least rainfall) is November (0.55").
Average rainfall days in December
Lower Brule, SD
- Average rainfall days in December: 3.9 days
The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in December
Lower Brule, SD
- Average snowfall in December: 3.07"
The month with the highest snowfall is February (3.66").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Lower Brule, SD
- Average snowfall days in December: 9.6 days
The months with the highest number of snowfall days are January and February (11.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lower Brule, SD
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in December
Lower Brule, SD
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is April (11.8 days).
Average UV index in December
Lower Brule, 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
Lower Brule, SD
- Average cloud cover in December: 47
The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 20).
Average visibility in December
Lower Brule, 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).
Lower Brule, South Dakota, USA
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