Weather By Day

December Sioux City Weather 
December Sioux City Weather
Record High: 70°F
Normal High: 32°F
Normal Low: 13°F
Record Low: -24°F
Avg Monthly Rain: 0.66"
Rec 1 Day Rain: 1.08"
Avg Monthly Snow: 6.2"
Rec 1 Day Snow: 9.2"

Sioux City Weather In December

The hottest December day in Sioux City for the past 70 years was 70 degrees Fahrenheit, most recently registered on December 2, 1998, while the typical high temperature is 32. The coldest day reported in Sioux City in December for the past 70 years was -24 measured on December 22, 1989, and the average low daily temperature is 13.

National Weather Service historical Sioux City December Weather data indicates that on December 14, 1989, the recorded high did not exceed -13 degrees Fahrenheit, the lowest high measured in Sioux City in the past 70 years. NWS weather data additionally shows that on December 1, 1962, the lowest recorded temperature on that day did not drop below 45 degrees, the highest low measured in Sioux City in the last 70 years.

Historical weather data accumulated by the National Weather Service shows that the average daily high temperature in Sioux City on December First is 40 degrees Fahrenheit and the average high on the last day of December is 29 degrees. The average recorded low temperature in Sioux City on December First is 20 degrees Fahrenheit and the average low on the last day of December is 10 degrees.

Sioux City usually receives an average of 0.66 inches of rain during December. The most precipitation measured in a single day, as indicated by December Sioux City Weather data, was 1.08 inches on December 3, 1953. Sioux City receives an average of 6.2 inches of snow in December. The highest snowfall measured in a single day in December was 9.2 inches on December 6, 1994.