December weather forecastSioux Center, IA
December
Weather in December
The first month of the winter, December, is also a subzero cold month in Sioux Center, Iowa, with an average temperature varying between 17.1°F (-8.3°C) and 28.2°F (-2.1°C).Temperature
December signals a considerable drop in Sioux Center's average high-temperature, reducing from a chilly 43.9°F (6.6°C) in November to a subzero cold 28.2°F (-2.1°C). Sioux Center anticipates an average minimum temperature of 17.1°F (-8.3°C) in the month of December.Humidity
The average relative humidity in December in Sioux Center is 84%.Rainfall
In Sioux Center, in December, during 5.2 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Sioux Center, during the entire year, the rain falls for 120.4 days and collects up to 21.57" (548mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Sioux Center, in December, snow falls for 10.1 days, with typically accumulated 2.95" (75mm) of snow. Throughout the year, in Sioux Center, there are 47.3 snowfall days, and 18.5" (470mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:37 am and sunset at 4:50 pm. On the last day of December, in Sioux Center, sunrise is at 7:56 am and sunset at 4:59 pm CST.
Sunshine
In Sioux Center, the average sunshine in December is 4.5h.UV index
January, February, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Sioux Center. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sioux Center, IA
- Average high temperature in December: 28.2°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (24.1°F).
- Average low temperature in December: 17.1°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (11.1°F).
Average pressure in December
Sioux Center, IA
- 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
Sioux Center, IA
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in December
Sioux Center, IA
- Average humidity in December: 84%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (67%).
Average rainfall in December
Sioux Center, IA
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in December
Sioux Center, IA
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in December
Sioux Center, IA
- Average snowfall in December: 2.95"
The month with the highest snowfall is February (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Sioux Center, IA
- Average snowfall days in December: 10.1 days
The month with the highest number of snowfall days is January (11.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Sioux Center, IA
- Average daylight in December: 9h and 6min
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 6min).
- Average sunshine in December: 4h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Sioux Center, IA
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in December
Sioux Center, IA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, October, November and December (UV index 2).
Average cloud cover in December
Sioux Center, IA
- 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 27).
Average visibility in December
Sioux Center, IA
- 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).
