December weather forecastEdgemont, SD
December
Weather in December
December in Edgemont is categorized by plummeting temperatures, elevated snowfall and the least amount of daylight hours. With the holiday season in full swing, the town becomes a winter wonderland. Icy conditions persist throughout the month, with infrequent bright sunny days providing a glimmer of warmth. The temperature plummets to the lowest average high of the year at 32.4°F (0.2°C). It is in this month that the picturesque town of Edgemont gets draped in a serene blanket of snow, thus bidding a chilly goodbye to the year.Temperature
December, noted for its average high-temperature of 32.4°F (0.2°C) and an average low-temperature of 18.5°F (-7.5°C), is considered the coldest month in Edgemont.Humidity
In December, the average relative humidity is 72%.Rainfall
In Edgemont, during December, the rain falls for 3.5 days and regularly aggregates up to 0.55" (14mm) of precipitation. Throughout the year, there are 115.8 rainfall days, and 16.61" (422mm) of precipitation is accumulated.Snowfall
January through May, September through December are months with snowfall. In Edgemont, during December, snow falls for 8.1 days and regularly aggregates up to 3.58" (91mm) of snow. In Edgemont, during the entire year, snow falls for 49.2 days and aggregates up to 23.19" (589mm) of snow.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year in Edgemont.On the first day of December, sunrise is at 7:08 am and sunset at 4:20 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:29 pm MST.
Sunshine
In December, the average sunshine is 6.1h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In December, a daily UV index of 2 turns into the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Always opt for UVA and UVB-resistant sunglasses on radiant days. Caution! The reflection of snow can nearly 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
Edgemont, SD
- Average high temperature in December: 32.4°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is December (32.4°F).
- Average low temperature in December: 18.5°F
The month with the highest average low temperature is July (63.9°F).
The coldest months (with the lowest average low temperature) are February and December (18.5°F).
Average pressure in December
Edgemont, SD
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Edgemont, SD
- Average wind speed in December: 9.3mph
The windiest month (with the highest average wind speed) is April (9.9mph).
The calmest month (with the lowest average wind speed) is August (7.8mph).
Average humidity in December
Edgemont, SD
- Average humidity in December: 72%
The month with the highest relative humidity is January (75%).
The month with the lowest relative humidity is August (47%).
Average rainfall in December
Edgemont, SD
- Average rainfall in December: 0.55"
The wettest month (with the highest rainfall) is June (2.87").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in December
Edgemont, SD
- Average rainfall days in December: 3.5 days
The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is December (3.5 days).
Average snowfall in December
Edgemont, SD
- Average snowfall in December: 3.58"
The month with the highest snowfall is February (3.66").
The months with the least snowfall are June, July and August (0").
Average snowfall days in December
Edgemont, SD
- Average snowfall days in December: 8.1 days
The month with the highest number of snowfall days is February (10.4 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Edgemont, 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: 6h and 6min
The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 48min).
Average sunshine days in December
Edgemont, SD
- Average sunshine days in December: 21.4 days
The month with the most sunshine days is December (21.4 days).
The month with the least sunshine days is May (11.2 days).
Average UV index in December
Edgemont, 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
Edgemont, SD
- Average cloud cover in December: 34
The month with the most cloud cover is February (Cloud cover 39).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in December
Edgemont, 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).
