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United States weather

Weather in Sioux City, Iowa for December 2026

Your guide to Sioux City weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 3 snowy days, Sioux City usually enjoys a light touch of snow in December.

    • Rain 🌧️

  • Precipitation in Sioux City during December is a rare event, with an average of fewer than 2 rainy days.

    • More

  • Is December a good time to visit Sioux City? check out the best time to travel to Sioux City page.

  • ✨ Is December a good time to visit Sioux City? – Ask the AI Weatherman

Average dry days
27
Dry days
Average rainy days
1
Rainy days
Average snowy days
3
Snow days
Average temperatures
1°/-6°
Temperatures
Average wind speed
24 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Sioux City Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Light freezing rain
-2°
2
Overcast
-2°
3
Sunny
1°
4
Partly cloudy
1°
5
Overcast
-2°
6
Moderate snow
2°
7
Partly cloudy
4°
8
Overcast
5°
9
Overcast
4°
10
Light freezing rain
2°
11
Partly cloudy
-1°
12
Light freezing rain
-5°
13
Light freezing rain
-5°
14
Light snow
-3°
15
Overcast
4°
16
Cloudy
6°
17
Overcast
3°
18
Patchy rain possible
2°
19
Overcast
3°
20
Partly cloudy
-1°
21
Partly cloudy
1°
22
Cloudy
7°
23
Overcast
2°
24
Overcast
1°
25
Overcast
0°
26
Light freezing rain
3°
27
Patchy rain possible
4°
28
Light snow
7°
29
Overcast
1°
30
Moderate rain
3°
31
Light snow
3°

Temperatures trend during December in Sioux City

See the weather trend as well as the moving average line

December weather in Sioux City day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Light freezing rain
Light freezing rain
 -2° /-9° 0.2 mm 0 cm
Dec. 2 Overcast
Overcast
 -2° /-10° 0 mm 0 cm
Dec. 3 Sunny
Sunny
 1° /-9° 0 mm 0 cm
Dec. 4 Partly cloudy
Partly cloudy
 1° /-12° 0 mm 0 cm
Dec. 5 Overcast
Overcast
 -2° /-9° 0 mm 0 cm
Dec. 6 Moderate snow
Moderate snow
 2° /-4° 12.2 mm 8.8 cm
Dec. 7 Partly cloudy
Partly cloudy
 4° /-7° 0 mm 0 cm
Dec. 8 Overcast
Overcast
 5° /-5° 0 mm 0 cm
Dec. 9 Overcast
Overcast
 4° /-2° 0 mm 0 cm
Dec. 10 Light freezing rain
Light freezing rain
 2° /-4° 0.2 mm 0 cm
Dec. 11 Partly cloudy
Partly cloudy
 -1° /-8° 0 mm 0 cm
Dec. 12 Light freezing rain
Light freezing rain
 -5° /-9° 0.4 mm 0 cm
Dec. 13 Light freezing rain
Light freezing rain
 -5° /-13° 10.9 mm 7.6 cm
Dec. 14 Light snow
Light snow
 -3° /-11° 1.3 mm 0.6 cm
Dec. 15 Overcast
Overcast
 4° /-6° 0 mm 0 cm
Dec. 16 Cloudy
Cloudy
 6° /-6° 0.1 mm 0 cm
Dec. 17 Overcast
Overcast
 3° /-2° 0.2 mm 0 cm
Dec. 18 Patchy rain possible
Patchy rain possible
 2° /-6° 1.6 mm 0 cm
Dec. 19 Overcast
Overcast
 3° /-8° 0 mm 0 cm
Dec. 20 Partly cloudy
Partly cloudy
 -1° /-6° 0 mm 0 cm
Dec. 21 Partly cloudy
Partly cloudy
 1° /-7° 0 mm 0 cm
Dec. 22 Cloudy
Cloudy
 7° /-3° 0 mm 0 cm
Dec. 23 Overcast
Overcast
 2° /-2° 0 mm 0 cm
Dec. 24 Overcast
Overcast
 1° /-1° 0 mm 0 cm
Dec. 25 Overcast
Overcast
 0° /-2° 0 mm 0 cm
Dec. 26 Light freezing rain
Light freezing rain
 3° /0° 0.1 mm 0 cm
Dec. 27 Patchy rain possible
Patchy rain possible
 4° /1° 0.4 mm 0 cm
Dec. 28 Light snow
Light snow
 7° /-6° 5.2 mm 1.6 cm
Dec. 29 Overcast
Overcast
 1° /-6° 0 mm 0 cm
Dec. 30 Moderate rain
Moderate rain
 3° /-6° 10.4 mm 5.7 cm
Dec. 31 Light snow
Light snow
 3° /-2° 5 mm 3.6 cm
Next
Important Notice
Our weather forecast for Sioux City in December is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Sioux City forecast closer to your planned date for the most up-to-date weather information.
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Sioux City in December - FAQ

What are the expected maximum and minimum temperatures in Sioux City during December?
Brace for cold days with temperatures not exceeding 1° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in Sioux City during December?
In December, Sioux City can expect light to moderate rainfall, totaling 48.3 mm across approximately 1 days. Occasional showers are possible, and planning ahead for them could be helpful.

Will it snow in Sioux City in December 2026?
Sioux City experiences an average snowfall of 27.8 cm during December, occurring over 3 days.

What are the typical wind conditions in Sioux City during December?
The average wind speed in Sioux City during December is 24 km/h, suggesting breezy to windy conditions, depending on your activities.

Sioux City snow forecast December 2026

Track daily snowfall levels and discover Sioux City’s snowy potential this December ❄️
On average, Sioux City sees 3 snowy days during December, with approximately 27.8 cm of total snowfall.

December rainfall patterns in Sioux City

Explore the daily rainfall trends and prepare for Sioux Citys December weather 💧
Typically, Sioux City has 1 rainy days in December with a total of 48.3 mm of rainfall.
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Location coordinates Where is Sioux City?

Get accurate weather forecasts for Sioux City, located at latitude 42.5 and longitude -96.4. Stay updated with localized weather information tailored for Sioux City.

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