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Weather in Sangamon County, Illinois for December 2026

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.

  • Rain 🌧️

  • With an average of 3 rainy days, Sangamon County experiences minimal rainfall in December.

  • More

  • Is December a good time to visit Sangamon County? check out the best time to travel to Sangamon County page.

  • ✨ Is December a good time to visit Sangamon County? – Ask the AI Weatherman

Average dry days
26
Dry days
Average rainy days
3
Rainy days
Average snowy days
2
Snow days
Average temperatures
3°/-2°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
82 %
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 in Sangamon County day by day

Click on a date for more information
Date Weather Temperatures Rain Snow More
Dec. 1 Light snow
Light snow
-1° /-7° 1.4 mm 0.4 cm
Dec. 2 Light snow
Light snow
-1° /-5° 3.2 mm 2.3 cm
Dec. 3 Cloudy
Cloudy
1° /-7° 0 mm 0 cm
Dec. 4 Overcast
Overcast
-1° /-6° 0 mm 0 cm
Dec. 5 Cloudy
Cloudy
-1° /-11° 0 mm 0 cm
Dec. 6 Cloudy
Cloudy
1° /-4° 0 mm 0 cm
Dec. 7 Sunny
Sunny
4° /-4° 0 mm 0 cm
Dec. 8 Cloudy
Cloudy
4° /-3° 0 mm 0 cm
Dec. 9 Overcast
Overcast
6° /-1° 0 mm 0 cm
Dec. 10 Overcast
Overcast
4° /-2° 0 mm 0 cm
Dec. 11 Light snow
Light snow
0° /-4° 0 mm 0 cm
Dec. 12 Overcast
Overcast
-2° /-3° 0.4 mm 0 cm
Dec. 13 Moderate snow
Moderate snow
-1° /-8° 9.2 mm 6.6 cm
Dec. 14 Light snow
Light snow
-4° /-9° 25.3 mm 2.9 cm
Dec. 15 Fog
Fog
2° /-8° 0.5 mm 0 cm
Dec. 16 Light rain
Light rain
6° /-2° 1.6 mm 0 cm
Dec. 17 Mist
Mist
5° /-1° 0 mm 0 cm
Dec. 18 Mist
Mist
5° /0° 0 mm 0 cm
Dec. 19 Overcast
Overcast
2° /-4° 0 mm 0 cm
Dec. 20 Overcast
Overcast
3° /-3° 0 mm 0 cm
Dec. 21 Cloudy
Cloudy
1° /-3° 0 mm 0 cm
Dec. 22 Partly cloudy
Partly cloudy
4° /-2° 0 mm 0 cm
Dec. 23 Overcast
Overcast
4° /1° 0 mm 0 cm
Dec. 24 Patchy rain possible
Patchy rain possible
3° /1° 1.6 mm 0 cm
Dec. 25 Fog
Fog
5° /2° 0 mm 0 cm
Dec. 26 Fog
Fog
9° /5° 0 mm 0 cm
Dec. 27 Moderate rain
Moderate rain
9° /6° 17.5 mm 0 cm
Dec. 28 Light rain
Light rain
15° /8° 5.4 mm 0 cm
Dec. 29 Moderate rain
Moderate rain
4° /0° 5.6 mm 0 cm
Dec. 30 Mist
Mist
4° /-2° 0 mm 0 cm
Dec. 31 Light snow
Light snow
3° /-1° 8.6 mm 0.9 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 3° 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?

Moderate rainfall is anticipated in Sangamon County during December, with a total of 80.4 mm spread over approximately 3 days. Considering plans for rainy days is advisable.

Will it snow in Sangamon County in December 2026?

Sangamon County experiences an average snowfall of 13.1 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 2026

Track daily snowfall levels and discover Sangamon County’s snowy potential this December ❄️
On average, Sangamon County sees 2 snowy days during December, with approximately 13.1 cm of total snowfall.

December rainfall patterns in Sangamon County

Explore the daily rainfall trends and prepare for Sangamon Countys December weather 💧
Typically, Sangamon County has 3 rainy days in December with a total of 80.4 mm of rainfall.
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