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
A distinct shift in the average high-temperature is signaled in December, moving down from a chilly 46.8°F (8.2°C) in November to a subzero cold 31.1°F (-0.5°C). South Sioux City's average low-temperature for the month of December records at a still freezing cold 19°F (-7.2°C).Humidity
The average relative humidity in December in South Sioux City is 81%.Rainfall
In December, in South Sioux City, Nebraska, the rain falls for 3.2 days. Throughout December, 0.59" (15mm) of precipitation is accumulated. In South Sioux City, Nebraska, during the entire year, the rain falls for 102.3 days and collects up to 12.91" (328mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In South Sioux City, during December, snow falls for 7.3 days and regularly aggregates up to 1.42" (36mm) of snow. Throughout the year, in South Sioux City, there are 31.1 snowfall days, and 6.85" (174mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:36 am and sunset at 4:53 pm. On the last day of December, in South Sioux City, Nebraska, sunrise is at 7:55 am and sunset at 5:02 pm CST.
Sunshine
In December, the average sunshine in South Sioux City is 4.8h.UV index
In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Experience reduced UV exposure by about half when donning a wide-brim hat. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Frequently asked questions
How cold is it in South Sioux City in December?
What is the average humidity in December in South Sioux City?
How many days does it rain in December in South Sioux City?
How many days does it snow in December in South Sioux City?
What is the month with the shortest days in South Sioux City?
How many hours of daylight does South Sioux City have in December?
When are sunrise and sunset in December in South Sioux City?
How many hours of sunshine does South Sioux City have in December?
How high is the UV index in December in South Sioux City?
Average temperature in December
South Sioux City, NE
- Average high temperature in December: 31.1°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in December: 19°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 (13.5°F).
Average pressure in December
South Sioux City, NE
- 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 (29.86"Hg).
Average wind speed in December
South Sioux City, NE
- Average wind speed in December: 10.3mph
The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in December
South Sioux City, NE
- Average humidity in December: 81%
The month with the highest relative humidity is January (83%).
The month with the lowest relative humidity is October (65%).
Average rainfall in December
South Sioux City, NE
- Average rainfall in December: 0.59"
The wettest month (with the highest rainfall) is June (1.85").
The driest months (with the least rainfall) are January and February (0.39").
Average rainfall days in December
South Sioux City, NE
- Average rainfall days in December: 3.2 days
The month with the highest number of rainy days is June (14.6 days).
The month with the least rainy days is January (2.6 days).
Average snowfall in December
South Sioux City, NE
- Average snowfall in December: 1.42"
The month with the highest snowfall is January (1.77").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
South Sioux City, NE
- Average snowfall days in December: 7.3 days
The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
South Sioux City, NE
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in December
South Sioux City, NE
- Average sunshine days in December: 22.4 days
The month with the most sunshine days is January (22.6 days).
The month with the least sunshine days is June (13.1 days).
Average UV index in December
South Sioux City, NE
- 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
South Sioux City, NE
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in December
South Sioux City, NE
- 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).
South Sioux City, Nebraska, USA
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