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Weather in Sangamon County for December 2025

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

    Snow Forecast ❄️

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

  • Temperatures

  • In general, the average temperature in Sangamon County at the beginning of December is 1.1 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 7.9 °F by the end of December.

  • Rain 🌧️

  • With an average of 5 rainy days, Sangamon County experiences minimal rainfall in December.

  • More

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

Average dry days
24
Dry days
Average rainy days
5
Rainy days
Average snowy days
2
Snow days
Average temperatures
4°/-1°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
78 %
Avg humidity

Sangamon County Weather December

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Temperatures trend during December in Sangamon County

See the weather trend as well as the moving average line

December weather day by day

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Date Weather Temperatures Rain Snow More
Dec. 1 Sunny
Sunny
0° /-8° 0 mm 0 cm
Dec. 2 Overcast
Overcast
-1° /-5° 0 mm 0 cm
Dec. 3 Cloudy
Cloudy
1° /-8° 0 mm 0 cm
Dec. 4 Overcast
Overcast
4° /-2° 0 mm 0 cm
Dec. 5 Cloudy
Cloudy
-3° /-10° 0 mm 0 cm
Dec. 6 Cloudy
Cloudy
0° /-6° 0 mm 0 cm
Dec. 7 Sunny
Sunny
7° /-3° 0 mm 0 cm
Dec. 8 Cloudy
Cloudy
9° /0° 0 mm 0 cm
Dec. 9 Overcast
Overcast
9° /2° 0 mm 0 cm
Dec. 10 Overcast
Overcast
3° /0° 0 mm 0 cm
Dec. 11 Light snow
Light snow
0° /-4° 0 mm 0 cm
Dec. 12 Overcast
Overcast
-3° /-5° 0 mm 0 cm
Dec. 13 Overcast
Overcast
0° /-6° 0 mm 0 cm
Dec. 14 Moderate or heavy snow showers
Moderate or heavy snow showers
2° /-1° 50.6 mm 5.8 cm
Dec. 15 Fog
Fog
3° /0° 0.9 mm 0 cm
Dec. 16 Light rain
Light rain
10° /3° 3.2 mm 0 cm
Dec. 17 Mist
Mist
9° /-1° 0 mm 0 cm
Dec. 18 Mist
Mist
3° /0° 0 mm 0 cm
Dec. 19 Overcast
Overcast
2° /-2° 0 mm 0 cm
Dec. 20 Overcast
Overcast
1° /-3° 0 mm 0 cm
Dec. 21 Cloudy
Cloudy
0° /-3° 0 mm 0 cm
Dec. 22 Partly cloudy
Partly cloudy
5° /-2° 0 mm 0 cm
Dec. 23 Overcast
Overcast
3° /0° 0 mm 0 cm
Dec. 24 Freezing fog
Freezing fog
1° /0° 3.3 mm 0 cm
Dec. 25 Fog
Fog
3° /1° 0 mm 0 cm
Dec. 26 Fog
Fog
8° /4° 0 mm 0 cm
Dec. 27 Moderate or heavy rain shower
Moderate or heavy rain shower
9° /6° 35.1 mm 0 cm
Dec. 28 Overcast
Overcast
12° /8° 0 mm 0 cm
Dec. 29 Moderate rain
Moderate rain
10° /7° 11.2 mm 0 cm
Dec. 30 Mist
Mist
7° /5° 0 mm 0 cm
Dec. 31 Moderate snow
Moderate snow
6° /0° 17.2 mm 1.7 cm
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Important Notice
Our weather forecast for Sangamon 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 Sangamon County forecast closer to your planned date for the most up-to-date weather information.

Sangamon County in December - FAQ

What are the expected maximum and minimum temperatures in Sangamon County during December?
Brace for cold days with temperatures not exceeding 4° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Sangamon County during December?
Significant rainfall exceeding 121.5 mm is expected in Sangamon County during December, occurring over more than 5 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Sangamon County in December 2025?
Sangamon County experiences an average snowfall of 7.58 cm during December, occurring over 2 days.
What are the typical wind conditions in Sangamon County during December?
The average wind speed in Sangamon County during December is 23 km/h, suggesting breezy to windy conditions, depending on your activities.

Sangamon County snow forecast December 2025

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

December rainfall patterns in Sangamon County

Explore the daily rainfall trends and prepare for Sangamon Countys December weather 💧
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Location coordinates Where is Sangamon County?

Get accurate weather forecasts for Sangamon County, located at latitude 39.802 and longitude -89.644. Stay updated with localized weather information tailored for Sangamon County.

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