Sangamon County (Springfield)
December
Weather in Sangamon County for December 2025
Your guide to Sangamon County weather in December - trends and predictions
With an average of 2 snowy days, Sangamon County usually enjoys a light touch of snow in December.
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.
With an average of 5 rainy days, Sangamon County experiences minimal rainfall in December.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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24
Dry days
5
Rainy days
2
Snow days
4°/-1°
Temperatures
23 km/h
Avg max wind
78 %
Avg humidity
Sangamon County Weather December
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  0° | 2  -1° | 3  1° | 4 4° | 5 -3° | 6 0° | |
| 7 7° | 8 9° | 9 9° | 10 3° | 11  0° | 12 -3° | 13 0° |
| 14  2° | 15  3° | 16  10° | 17 9° | 18 3° | 19 2° | 20 1° |
| 21 0° | 22  5° | 23 3° | 24  1° | 25 3° | 26 8° | 27  9° |
| 28 12° | 29  10° | 30 7° | 31  6° |
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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 | 0° /-8° | 0 mm | 0 cm | |
| Dec. 2 | Overcast | -1° /-5° | 0 mm | 0 cm | |
| Dec. 3 | Cloudy | 1° /-8° | 0 mm | 0 cm | |
| Dec. 4 | Overcast | 4° /-2° | 0 mm | 0 cm | |
| Dec. 5 | Cloudy | -3° /-10° | 0 mm | 0 cm | |
| Dec. 6 | Cloudy | 0° /-6° | 0 mm | 0 cm | |
| Dec. 7 | Sunny | 7° /-3° | 0 mm | 0 cm | |
| Dec. 8 | Cloudy | 9° /0° | 0 mm | 0 cm | |
| Dec. 9 | Overcast | 9° /2° | 0 mm | 0 cm | |
| Dec. 10 | Overcast | 3° /0° | 0 mm | 0 cm | |
| Dec. 11 | Light snow | 0° /-4° | 0 mm | 0 cm | |
| Dec. 12 | Overcast | -3° /-5° | 0 mm | 0 cm | |
| Dec. 13 | Overcast | 0° /-6° | 0 mm | 0 cm | |
| Dec. 14 | Moderate or heavy snow showers | 2° /-1° | 50.6 mm | 5.8 cm | |
| Dec. 15 | Fog | 3° /0° | 0.9 mm | 0 cm | |
| Dec. 16 | Light rain | 10° /3° | 3.2 mm | 0 cm | |
| Dec. 17 | Mist | 9° /-1° | 0 mm | 0 cm | |
| Dec. 18 | Mist | 3° /0° | 0 mm | 0 cm | |
| Dec. 19 | Overcast | 2° /-2° | 0 mm | 0 cm | |
| Dec. 20 | Overcast | 1° /-3° | 0 mm | 0 cm | |
| Dec. 21 | Cloudy | 0° /-3° | 0 mm | 0 cm | |
| Dec. 22 | Partly cloudy | 5° /-2° | 0 mm | 0 cm | |
| Dec. 23 | Overcast | 3° /0° | 0 mm | 0 cm | |
| Dec. 24 | Freezing fog | 1° /0° | 3.3 mm | 0 cm | |
| Dec. 25 | Fog | 3° /1° | 0 mm | 0 cm | |
| Dec. 26 | Fog | 8° /4° | 0 mm | 0 cm | |
| Dec. 27 | Moderate or heavy rain shower | 9° /6° | 35.1 mm | 0 cm | |
| Dec. 28 | Overcast | 12° /8° | 0 mm | 0 cm | |
| Dec. 29 | Moderate rain | 10° /7° | 11.2 mm | 0 cm | |
| Dec. 30 | Mist | 7° /5° | 0 mm | 0 cm | |
| Dec. 31 | 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
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December rainfall patterns in Sangamon County
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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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