Johnson County (Iowa City)
December
Weather in Johnson County, Iowa for December 2026
Your guide to Johnson County weather in December - trends and predictions
With an average of 5 snowy days, Johnson County usually enjoys a light touch of snow in December.
Is December a good time to visit Johnson County? check out the best time to travel to Johnson County page.
✨ Is December a good time to visit Johnson County? – Ask the AI Weatherman
Snow Forecast ❄️
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24
Dry days
2
Rainy days
5
Snow days
0°/-5°
Temperatures
22 km/h
Avg max wind
83 %
Avg humidity
Johnson County Weather December
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Temperatures trend during December in Johnson County
See the weather trend as well as the moving average line
December weather in Johnson County day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Moderate snow | -3° /-11° | 8 mm | 5.8 cm | |
| Dec. 2 |  Light freezing rain | -3° /-6° | 0.4 mm | 0 cm | |
| Dec. 3 |  Light snow | -1° /-9° | 6.1 mm | 4.4 cm | |
| Dec. 4 |  Patchy rain possible | -2° /-13° | 0.1 mm | 0 cm | |
| Dec. 5 |  Cloudy | -4° /-12° | 0 mm | 0 cm | |
| Dec. 6 |  Overcast | 0° /-6° | 0 mm | 0 cm | |
| Dec. 7 |  Heavy snow | 5° /-7° | 15.2 mm | 11 cm | |
| Dec. 8 | Overcast | 3° /-6° | 0 mm | 0 cm | |
| Dec. 9 | Overcast | 5° /-2° | 0 mm | 0 cm | |
| Dec. 10 | Overcast | 1° /-4° | 0 mm | 0 cm | |
| Dec. 11 | Light freezing rain | -2° /-9° | 2.9 mm | 2 cm | |
| Dec. 12 | Light freezing rain | -5° /-10° | 1.1 mm | 0.5 cm | |
| Dec. 13 | Moderate snow | -6° /-13° | 9.8 mm | 7 cm | |
| Dec. 14 |  Moderate or heavy snow showers | -7° /-11° | 14.9 mm | 10.2 cm | |
| Dec. 15 | Overcast | 1° /-7° | 0.1 mm | 0 cm | |
| Dec. 16 | Overcast | 3° /-5° | 0 mm | 0 cm | |
| Dec. 17 | Overcast | 1° /-3° | 0.2 mm | 0 cm | |
| Dec. 18 | Light snow | 1° /-4° | 2.2 mm | 0.4 cm | |
| Dec. 19 |  Patchy moderate snow | -2° /-7° | 0.3 mm | 0.2 cm | |
| Dec. 20 | Overcast | -1° /-5° | 0 mm | 0 cm | |
| Dec. 21 |  Partly cloudy | -2° /-8° | 0 mm | 0 cm | |
| Dec. 22 | Partly cloudy | 1° /-4° | 0 mm | 0 cm | |
| Dec. 23 | Overcast | 2° /0° | 0 mm | 0 cm | |
| Dec. 24 | Overcast | 1° /-2° | 0 mm | 0 cm | |
| Dec. 25 | Overcast | 2° /0° | 0.1 mm | 0 cm | |
| Dec. 26 | Patchy rain possible | 4° /0° | 0.6 mm | 0 cm | |
| Dec. 27 |  Moderate or heavy rain shower | 5° /3° | 8.8 mm | 0 cm | |
| Dec. 28 |  Heavy rain | 7° /1° | 28.5 mm | 0 cm | |
| Dec. 29 | Patchy rain possible | -1° /-4° | 0.1 mm | 0 cm | |
| Dec. 30 | Patchy rain possible | 2° /-5° | 0.1 mm | 0 cm | |
| Dec. 31 | Moderate snow | 1° /-2° | 11.6 mm | 5.4 cm | |
| Next | |||||
Important Notice
Our weather forecast for Johnson County 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 Johnson County forecast closer to your planned date for the most up-to-date weather information.
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Johnson County in December - FAQ
What are the expected maximum and minimum temperatures in Johnson County during December?
Brace for cold days with temperatures not exceeding 0° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Johnson County during December?
Significant rainfall exceeding 111.2 mm is expected in Johnson County during December, occurring over more than 2 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Johnson County in December 2026?
Johnson County experiences an average snowfall of 47 cm during December, occurring over 5 days.
What are the typical wind conditions in Johnson County during December?
The average wind speed in Johnson County during December is 22 km/h, suggesting breezy to windy conditions, depending on your activities.
Johnson County snow forecast December 2026
Track daily snowfall levels and discover Johnson County’s snowy potential this December ❄️
On average, Johnson County sees 5 snowy days during December, with approximately 47 cm of total snowfall.
December rainfall patterns in Johnson County
Explore the daily rainfall trends and prepare for Johnson Countys December weather 💧
Typically, Johnson County has 2 rainy days in December with a total of 111.2 mm of rainfall.
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