easeweather.com
Sioux City (IA)
Akron (OH)Albuquerque (NM)Alexandria (VA)Anaheim (CA)Anchorage (AK)Arlington (VA)Asheville (NC)Atlanta (GA)Atlantic City (NJ)Austin (TX)Baltimore (MD)Baton Rouge (LA)Birmingham (AL)Boston (MA)Brooklyn (NY)Buffalo (NY)Cape Coral (FL)Charlotte (NC)Chattanooga (TN)Chicago (IL)Cincinnati (OH)Cleveland (OH)Colorado Springs (CO)Columbus (OH)Corpus Christi (TX)Dallas (TX)Dayton (OH)Denver (CO)Des Moines (IA)Detroit (MI)El Paso (TX)Fairbanks (AK)Fort Lauderdale (FL)Fort Wayne (IN)Fort Worth (TX)Gatlinburg (TN)Grand Rapids (MI)Harrisburg (PA)Honolulu (HI)Houston (TX)Huntsville (AL)Indianapolis (IN)Jackson (MS)Jacksonville (FL)Juneau (AK)Kansas City (MO)Ketchikan (AK)Key West (FL)Knoxville (TN)Las Vegas (NV)Lexington (KY)Lincoln (NE)Little Rock (AR)Los Angeles (CA)Louisville (KY)Madison (WI)Manhattan (NY)Memphis (TN)Miami (FL)Milwaukee (WI)Minneapolis (MN)Mobile (AL)Montgomery (AL)Nashville (TN)New Orleans (LA)New York City (NY)Newark (NJ)Oklahoma City (OK)Omaha (NE)Orlando (FL)Philadelphia (PA)Phoenix (AZ)Pittsburgh (PA)Portland (OR)Richmond (VA)Riverside (CA)Sacramento (CA)Salt Lake City (UT)San Antonio (TX)San Diego (CA)San Francisco (CA)San Jose (CA)Savannah (GA)Seattle (WA)
Sioux City (IA)
Sitka (AK)Skagway (AK)Springfield (MO)St. Louis (MO)St. Petersburg (FL)Tallahassee (FL)Tampa (FL)Toledo (OH)Traverse City (MI)Tulsa (OK)Tyler (TX)Vancouver (WA)Virginia Beach (VA)WashingtonWichita (KS)Winston-Salem (NC) More Locations
United States weather

Weather in Sioux City, Iowa for December 2025

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.
    According to Sioux City snow forecast for December 2025, 2 snowy days are expected at the beginning of December. The first snowfall for December is expected in Wednesday, December 3.

    • Temperatures

  • The forecast for the first days of December 2025 in Sioux City predicts temperatures to be around -3 °F, close to the historical average.

  • In general, the average temperature in Sioux City at the beginning of December is -4.4 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 3.6 °F by the end of December.

    • Rain 🌧️

  • Sioux City experiences moderate rainfall in December, with an average of 6 rainy days and a total precipitation of 37.7 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
22
Dry days
Average rainy days
6
Rainy days
Average snowy days
3
Snow days
Average temperatures
2°/-5°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
72 %
Avg humidity

Sioux City Weather December

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

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 Overcast
Overcast
 -3° /-12° 0 mm 0 cm
Dec. 2 Sunny
Sunny
 -2° /-16° 0 mm 0 cm
Dec. 3 Blizzard
Blizzard
 -2° /-18° 2.2 mm 0.3 cm
Dec. 4 Freezing fog
Freezing fog
 -14° /-29° 0 mm 0 cm
Dec. 5 Sunny
Sunny
 -1° /-16° 0 mm 0 cm
Dec. 6 Light freezing rain
Light freezing rain
 2° /-11° 0.3 mm 0 cm
Dec. 7 Partly cloudy
Partly cloudy
 -11° /-18° 0 mm 0 cm
Dec. 8 Light freezing rain
Light freezing rain
 -3° /-17° 0.4 mm 0.2 cm
Dec. 9 Sunny
Sunny
 1° /-9° 0 mm 0 cm
Dec. 10 Sunny
Sunny
 1° /-5° 0 mm 0 cm
Dec. 11 Partly cloudy
Partly cloudy
 1° /-4° 0 mm 0 cm
Dec. 12 Sunny
Sunny
 -3° /-10° 0 mm 0 cm
Dec. 13 Light freezing rain
Light freezing rain
 -2° /-11° 0.9 mm 0 cm
Dec. 14 Moderate snow
Moderate snow
 0° /-4° 2.6 mm 1.2 cm
Dec. 15 Overcast
Overcast
 4° /-2° 0 mm 0 cm
Dec. 16 Cloudy
Cloudy
 8° /-1° 0.2 mm 0 cm
Dec. 17 Overcast
Overcast
 3° /-2° 0.3 mm 0 cm
Dec. 18 Partly cloudy
Partly cloudy
 0° /-4° 0.2 mm 0 cm
Dec. 19 Overcast
Overcast
 4° /-7° 0 mm 0 cm
Dec. 20 Partly cloudy
Partly cloudy
 -4° /-10° 0 mm 0 cm
Dec. 21 Partly cloudy
Partly cloudy
 1° /-7° 0 mm 0 cm
Dec. 22 Cloudy
Cloudy
 6° /-4° 0 mm 0 cm
Dec. 23 Overcast
Overcast
 2° /-2° 0 mm 0 cm
Dec. 24 Overcast
Overcast
 0° /-1° 0 mm 0 cm
Dec. 25 Overcast
Overcast
 0° /-2° 0 mm 0 cm
Dec. 26 Light freezing rain
Light freezing rain
 2° /0° 0.2 mm 0 cm
Dec. 27 Patchy rain possible
Patchy rain possible
 4° /1° 0.9 mm 0 cm
Dec. 28 Overcast
Overcast
 10° /-2° 0 mm 0 cm
Dec. 29 Overcast
Overcast
 6° /0° 0 mm 0 cm
Dec. 30 Moderate or heavy rain shower
Moderate or heavy rain shower
 3° /-2° 20.7 mm 11.4 cm
Dec. 31 Overcast
Overcast
 0° /-2° 9.9 mm 7.2 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.
Change Month
‹
›

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 2° 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 37.7 mm across approximately 6 days. Occasional showers are possible, and planning ahead for them could be helpful.
Will it snow in Sioux City in December 2025?
Sioux City experiences an average snowfall of 19.7 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 22 km/h, suggesting breezy to windy conditions, depending on your activities.

Sioux City snow forecast December 2025

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 19.7 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 6 rainy days in December with a total of 37.7 mm of rainfall.

Quick links

More Sioux City weather pages
You are here
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.

Found a mistake?
We appreciate your attention to details. Tell us here.