Johnson County (Iowa City)
December
Weather in Johnson County, Iowa for December 2025
Your guide to Johnson County weather in December - trends and predictions
With an average of 4 snowy days, Johnson County usually enjoys a light touch of snow in December.
In general, the average temperature in Johnson County at the beginning of December is 0.3 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 4.6 °F by the end of December.
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Snow Forecast ❄️
Temperatures
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21
Dry days
6
Rainy days
4
Snow days
2°/-4°
Temperatures
22 km/h
Avg max wind
78 %
Avg humidity
Johnson County Weather December
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Temperatures trend during December in Johnson County
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December weather in Johnson County day by day
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Date | Weather | Temperatures | Rain | Snow | More |
---|---|---|---|---|---|
Dec. 1 | Sunny | -2° /-9° | 0 mm | 0 cm | |
Dec. 2 | Light freezing rain | -2° /-6° | 0.9 mm | 0 cm | |
Dec. 3 | Cloudy | -1° /-9° | 0 mm | 0 cm | |
Dec. 4 | Patchy rain possible | 4° /-7° | 0.2 mm | 0 cm | |
Dec. 5 | Cloudy | -6° /-12° | 0 mm | 0 cm | |
Dec. 6 | Overcast | 0° /-8° | 0 mm | 0 cm | |
Dec. 7 | Sunny | 9° /-3° | 0 mm | 0 cm | |
Dec. 8 | Overcast | 7° /0° | 0 mm | 0 cm | |
Dec. 9 | Overcast | 8° /0° | 0 mm | 0 cm | |
Dec. 10 | Overcast | 0° /-2° | 0 mm | 0 cm | |
Dec. 11 | Light freezing rain | -1° /-10° | 0.3 mm | 0 cm | |
Dec. 12 | Light freezing rain | -9° /-13° | 0.7 mm | 0 cm | |
Dec. 13 | Overcast | -3° /-11° | 0 mm | 0 cm | |
Dec. 14 | Moderate or heavy snow showers | 0° /-5° | 29.8 mm | 20.5 cm | |
Dec. 15 | Overcast | 1° /0° | 0.1 mm | 0 cm | |
Dec. 16 | Overcast | 4° /0° | 0 mm | 0 cm | |
Dec. 17 | Overcast | 2° /-3° | 0.5 mm | 0 cm | |
Dec. 18 | Overcast | 0° /-3° | 1.3 mm | 0.7 cm | |
Dec. 19 | Patchy moderate snow | 2° /-3° | 0.7 mm | 0.4 cm | |
Dec. 20 | Overcast | -2° /-5° | 0 mm | 0 cm | |
Dec. 21 | Partly cloudy | -2° /-8° | 0 mm | 0 cm | |
Dec. 22 | Partly cloudy | 2° /-4° | 0 mm | 0 cm | |
Dec. 23 | Overcast | 3° /0° | 0 mm | 0 cm | |
Dec. 24 | Overcast | 1° /-1° | 0 mm | 0 cm | |
Dec. 25 | Overcast | 2° /0° | 0.1 mm | 0 cm | |
Dec. 26 | Patchy rain possible | 6° /0° | 1.3 mm | 0 cm | |
Dec. 27 | Moderate or heavy rain shower | 6° /5° | 17.7 mm | 0 cm | |
Dec. 28 | Overcast | 9° /3° | 0 mm | 0 cm | |
Dec. 29 | Patchy rain possible | 5° /3° | 0.1 mm | 0 cm | |
Dec. 30 | Patchy rain possible | 4° /1° | 0.1 mm | 0 cm | |
Dec. 31 | Heavy snow | 0° /-1° | 23.3 mm | 10.8 cm | |
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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 2° 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?
Moderate rainfall is anticipated in Johnson County during December, with a total of 77 mm spread over approximately 6 days. Considering plans for rainy days is advisable.
Will it snow in Johnson County in December 2025?
Johnson County experiences an average snowfall of 32.4 cm during December, occurring over 4 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 2025
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December rainfall patterns in Johnson County
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Get accurate weather forecasts for Johnson County, located at latitude 41.661 and longitude -91.53. Stay updated with localized weather information tailored for Johnson County.
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