Effingham County (Effingham)
December
Weather in Effingham County, Illinois for December 2026
Your guide to Effingham County weather in December - trends and predictions
With an average of 2 snowy days, Effingham County usually enjoys a light touch of snow in December.
Effingham County experiences moderate rainfall in December, with an average of 8 rainy days and a total precipitation of 103.2 mm.
Is December a good time to visit Effingham County? check out the best time to travel to Effingham County page.
✨ Is December a good time to visit Effingham County? – Ask the AI Weatherman
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21
Dry days
8
Rainy days
2
Snow days
4°/-2°
Temperatures
23 km/h
Avg max wind
82 %
Avg humidity
Effingham County Weather December
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Temperatures trend during December in Effingham County
See the weather trend as well as the moving average line
December weather in Effingham County day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Sunny | -1° /-6° | 0 mm | 0 cm | |
| Dec. 2 |  Light freezing rain | -1° /-7° | 9.5 mm | 5.4 cm | |
| Dec. 3 | Sunny | 1° /-7° | 0 mm | 0 cm | |
| Dec. 4 |  Overcast | 2° /-6° | 0 mm | 0 cm | |
| Dec. 5 | Sunny | -1° /-10° | 0 mm | 0 cm | |
| Dec. 6 |  Cloudy | 0° /-5° | 0 mm | 0 cm | |
| Dec. 7 |  Patchy rain possible | 5° /-4° | 1.7 mm | 0.5 cm | |
| Dec. 8 | Patchy rain possible | 6° /-2° | 2.4 mm | 0 cm | |
| Dec. 9 | Patchy rain possible | 7° /0° | 1.2 mm | 0 cm | |
| Dec. 10 | Overcast | 4° /-2° | 0 mm | 0 cm | |
| Dec. 11 | Patchy rain possible | 1° /-3° | 0.2 mm | 0 cm | |
| Dec. 12 | Overcast | 1° /-3° | 0 mm | 0 cm | |
| Dec. 13 |  Light snow | 0° /-7° | 1.2 mm | 0.9 cm | |
| Dec. 14 |  Moderate rain | -1° /-7° | 19.2 mm | 0 cm | |
| Dec. 15 | Patchy rain possible | 5° /-5° | 1.4 mm | 0 cm | |
| Dec. 16 | Moderate rain | 8° /-1° | 11.2 mm | 0 cm | |
| Dec. 17 |  Partly cloudy | 8° /-1° | 0.4 mm | 0 cm | |
| Dec. 18 | Patchy rain possible | 7° /0° | 2.2 mm | 0 cm | |
| Dec. 19 | Overcast | 3° /-3° | 0.1 mm | 0 cm | |
| Dec. 20 | Light freezing rain | 5° /-2° | 0.2 mm | 0 cm | |
| Dec. 21 | Partly cloudy | 3° /-3° | 0 mm | 0 cm | |
| Dec. 22 | Partly cloudy | 6° /-2° | 0 mm | 0 cm | |
| Dec. 23 | Patchy rain possible | 7° /2° | 1 mm | 0 cm | |
| Dec. 24 | Patchy rain possible | 7° /3° | 0.5 mm | 0 cm | |
| Dec. 25 |  Light rain | 9° /5° | 4.3 mm | 0 cm | |
| Dec. 26 | Light rain | 11° /6° | 2.7 mm | 0 cm | |
| Dec. 27 | Moderate rain | 11° /7° | 11 mm | 0 cm | |
| Dec. 28 | Light rain | 15° /10° | 5.9 mm | 0 cm | |
| Dec. 29 | Moderate rain | 5° /1° | 21.6 mm | 0 cm | |
| Dec. 30 | Patchy rain possible | 5° /-2° | 0.1 mm | 0 cm | |
| Dec. 31 |  Moderate or heavy rain shower | 4° /-1° | 5.4 mm | 0 cm | |
| Next | |||||
Important Notice
Our weather forecast for Effingham 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 Effingham County forecast closer to your planned date for the most up-to-date weather information.
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Effingham County in December - FAQ
What are the expected maximum and minimum temperatures in Effingham 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 Effingham County during December?
Significant rainfall exceeding 103.2 mm is expected in Effingham County during December, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Effingham County in December 2026?
Effingham County experiences an average snowfall of 6.8 cm during December, occurring over 2 days.
What are the typical wind conditions in Effingham County during December?
The average wind speed in Effingham County during December is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
Effingham County snow forecast December 2026
Track daily snowfall levels and discover Effingham County’s snowy potential this December ❄️
On average, Effingham County sees 2 snowy days during December, with approximately 6.8 cm of total snowfall.
December rainfall patterns in Effingham County
Explore the daily rainfall trends and prepare for Effingham Countys December weather 💧
Typically, Effingham County has 8 rainy days in December with a total of 103.2 mm of rainfall.
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