December weather forecastEstelline, SD
December
Weather in December
December, the first month of the winter in Estelline, is also a subzero cold month, with temperature in the range of an average low of 13.6°F (-10.2°C) and an average high of 25.7°F (-3.5°C).Temperature
As November transitions into December, Estelline sees a clear drop in the average high-temperature, declining from a cold 41.2°F (5.1°C) to a freezing cold 25.7°F (-3.5°C). Nighttime temperature lowers to an average of 13.6°F (-10.2°C) in December.Humidity
In Estelline, South Dakota, the average relative humidity in December is 86%.Rainfall
In Estelline, in December, it is raining for 5.1 days, with typically 1.1" (28mm) of accumulated precipitation. In Estelline, South Dakota, during the entire year, the rain falls for 125.5 days and collects up to 21.65" (550mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. In Estelline, South Dakota, during December, snow falls for 13.3 days and regularly aggregates up to 4.65" (118mm) of snow. Throughout the year, there are 61.5 snowfall days, and 21.38" (543mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:44 am and sunset at 4:48 pm. On the last day of December, in Estelline, sunrise is at 8:04 am and sunset at 4:57 pm CST.
Sunshine
The average sunshine in December is 4.2h.UV index
In December, the average daily maximum UV index is 2. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 2 in December interprets into the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Estelline, SD
- Average high temperature in December: 25.7°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (20.7°F).
- Average low temperature in December: 13.6°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (7°F).
Average pressure in December
Estelline, 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 (29.86"Hg).
Average wind speed in December
Estelline, SD
- Average wind speed in December: 10.7mph
The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is July (8.4mph).
Average humidity in December
Estelline, SD
- Average humidity in December: 86%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (68%).
Average rainfall in December
Estelline, SD
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is November (0.67").
Average rainfall days in December
Estelline, SD
- Average rainfall days in December: 5.1 days
The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is January (3.2 days).
Average snowfall in December
Estelline, SD
- Average snowfall in December: 4.65"
The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Estelline, SD
- Average snowfall days in December: 13.3 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Estelline, SD
- Average daylight in December: 8h and 54min
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 12min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Estelline, SD
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in December
Estelline, SD
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Estelline, SD
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in December
Estelline, 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).
