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Jefferson County (Fairfield)
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United States weather

Weather in Jefferson County, Iowa for December 2025

Your guide to Jefferson County weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 2 snowy days, Jefferson County usually enjoys a light touch of snow in December.

    • Temperatures

  • In general, the average temperature in Jefferson County at the beginning of December is 1 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 5.4 °F by the end of December.

    • Rain 🌧️

  • Jefferson County experiences moderate rainfall in December, with an average of 6 rainy days and a total precipitation of 79.5 mm.

    • More

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

Average dry days
23
Dry days
Average rainy days
6
Rainy days
Average snowy days
2
Snow days
Average temperatures
3°/-3°
Temperatures
Average wind speed
22 km/h
Avg max wind
Average humidity
77 %
Avg humidity

Jefferson County Weather December

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

Temperatures trend during December in Jefferson County

See the weather trend as well as the moving average line

December weather in Jefferson County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Sunny
Sunny
 0° /-9° 0 mm 0 cm
Dec. 2 Light freezing rain
Light freezing rain
 -1° /-6° 0.7 mm 0 cm
Dec. 3 Partly cloudy
Partly cloudy
 0° /-9° 0 mm 0 cm
Dec. 4 Overcast
Overcast
 5° /-6° 0 mm 0 cm
Dec. 5 Cloudy
Cloudy
 -6° /-11° 0 mm 0 cm
Dec. 6 Overcast
Overcast
 1° /-6° 0 mm 0 cm
Dec. 7 Sunny
Sunny
 8° /-4° 0 mm 0 cm
Dec. 8 Overcast
Overcast
 10° /1° 0 mm 0 cm
Dec. 9 Overcast
Overcast
 9° /1° 0 mm 0 cm
Dec. 10 Overcast
Overcast
 1° /-1° 0 mm 0 cm
Dec. 11 Overcast
Overcast
 -2° /-8° 0.1 mm 0 cm
Dec. 12 Light freezing rain
Light freezing rain
 -9° /-10° 0.8 mm 0 cm
Dec. 13 Overcast
Overcast
 -3° /-11° 0 mm 0 cm
Dec. 14 Moderate or heavy snow showers
Moderate or heavy snow showers
 1° /-3° 46.2 mm 28.2 cm
Dec. 15 Overcast
Overcast
 3° /0° 0 mm 0 cm
Dec. 16 Overcast
Overcast
 5° /0° 0 mm 0 cm
Dec. 17 Overcast
Overcast
 4° /-1° 0.2 mm 0 cm
Dec. 18 Overcast
Overcast
 1° /-3° 0.5 mm 0 cm
Dec. 19 Overcast
Overcast
 5° /-3° 0 mm 0 cm
Dec. 20 Partly cloudy
Partly cloudy
 -2° /-6° 0 mm 0 cm
Dec. 21 Cloudy
Cloudy
 0° /-6° 0 mm 0 cm
Dec. 22 Sunny
Sunny
 3° /-4° 0 mm 0 cm
Dec. 23 Overcast
Overcast
 4° /0° 0 mm 0 cm
Dec. 24 Overcast
Overcast
 1° /-1° 0 mm 0 cm
Dec. 25 Patchy rain possible
Patchy rain possible
 2° /0° 0.2 mm 0 cm
Dec. 26 Patchy rain possible
Patchy rain possible
 7° /0° 0.8 mm 0 cm
Dec. 27 Moderate or heavy rain shower
Moderate or heavy rain shower
 6° /6° 18.3 mm 0 cm
Dec. 28 Overcast
Overcast
 9° /4° 0 mm 0 cm
Dec. 29 Overcast
Overcast
 7° /5° 0 mm 0 cm
Dec. 30 Moderate rain at times
Moderate rain at times
 5° /1° 1.3 mm 0 cm
Dec. 31 Moderate snow
Moderate snow
 2° /-1° 10.4 mm 6.1 cm
Next
Important Notice
Our weather forecast for Jefferson 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 Jefferson County forecast closer to your planned date for the most up-to-date weather information.
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Jefferson County in December - FAQ

What are the expected maximum and minimum temperatures in Jefferson County during December?
Brace for cold days with temperatures not exceeding 3° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Jefferson County during December?
Moderate rainfall is anticipated in Jefferson County during December, with a total of 79.5 mm spread over approximately 6 days. Considering plans for rainy days is advisable.
Will it snow in Jefferson County in December 2025?
Jefferson County experiences an average snowfall of 34.2 cm during December, occurring over 2 days.
What are the typical wind conditions in Jefferson County during December?
The average wind speed in Jefferson County during December is 22 km/h, suggesting breezy to windy conditions, depending on your activities.

Jefferson County snow forecast December 2025

Track daily snowfall levels and discover Jefferson County’s snowy potential this December ❄️

December rainfall patterns in Jefferson County

Explore the daily rainfall trends and prepare for Jefferson Countys December weather 💧
Top locations in Jefferson County
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BeaumontBirminghamFairfieldLakewoodLouisvilleWatertown
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Location coordinates Where is Jefferson County?

Get accurate weather forecasts for Jefferson County, located at latitude 41.009 and longitude -91.963. Stay updated with localized weather information tailored for Jefferson County.

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