Effingham County (Effingham)
December
Weather in Effingham County, Illinois for December 2025
Your guide to Effingham County weather in December - trends and predictions
In general, the average temperature in Effingham County at the beginning of December is 1.3 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 9.6 °F by the end of December.
Effingham County in December brings notable rainfall, with an average of 18 rainy days and a total precipitation of 168.7 mm.
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Temperatures
Rain 🌧️
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13
Dry days
18
Rainy days
0
Snow days
6°/-1°
Temperatures
23 km/h
Avg max wind
81 %
Avg humidity
Effingham County Weather December
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Temperatures trend during December in Effingham County
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December weather in Effingham County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Dec. 1 |  Sunny | 0° /-7° | 0 mm | 2 | |
| Dec. 2 |  Light freezing rain | -1° /-7° | 0.8 mm | 1 | |
| Dec. 3 | Sunny | 0° /-7° | 0 mm | 2 | |
| Dec. 4 |  Overcast | 6° /-4° | 0 mm | 2 | |
| Dec. 5 | Sunny | -3° /-9° | 0 mm | 2 | |
| Dec. 6 |  Cloudy | 0° /-8° | 0 mm | 1 | |
| Dec. 7 | Sunny | 7° /-5° | 0 mm | 3 | |
| Dec. 8 | Overcast | 11° /1° | 4.8 mm | 3 | |
| Dec. 9 | Overcast | 10° /4° | 2.5 mm | 3 | |
| Dec. 10 | Overcast | 4° /0° | 0 mm | 1 | |
| Dec. 11 |  Patchy rain possible | 1° /-3° | 0.3 mm | 1 | |
| Dec. 12 | Overcast | 0° /-6° | 0 mm | 1 | |
| Dec. 13 | Overcast | 1° /-6° | 0 mm | 1 | |
| Dec. 14 |  Moderate or heavy rain shower | 5° /-1° | 38.4 mm | 1 | |
| Dec. 15 | Patchy rain possible | 9° /5° | 2.8 mm | 2 | |
| Dec. 16 | Moderate or heavy rain shower | 14° /4° | 22.3 mm | 3 | |
| Dec. 17 |  Partly cloudy | 11° /0° | 0.8 mm | 4 | |
| Dec. 18 | Overcast | 5° /-1° | 4.3 mm | 2 | |
| Dec. 19 | Overcast | 3° /-2° | 0.1 mm | 1 | |
| Dec. 20 | Light freezing rain | 2° /-2° | 0.3 mm | 1 | |
| Dec. 21 | Partly cloudy | 2° /-3° | 0 mm | 2 | |
| Dec. 22 | Partly cloudy | 5° /-3° | 0 mm | 3 | |
| Dec. 23 | Moderate rain at times | 5° /-1° | 1.1 mm | 2 | |
| Dec. 24 | Patchy rain possible | 6° /1° | 1 mm | 2 | |
| Dec. 25 | Moderate or heavy rain shower | 6° /3° | 8.7 mm | 2 | |
| Dec. 26 | Patchy rain possible | 9° /5° | 0.9 mm | 2 | |
| Dec. 27 | Moderate or heavy rain shower | 11° /7° | 22 mm | 3 | |
| Dec. 28 | Overcast | 13° /9° | 5.4 mm | 3 | |
| Dec. 29 | Moderate or heavy rain shower | 11° /7° | 41.3 mm | 3 | |
| Dec. 30 | Patchy rain possible | 9° /5° | 0.1 mm | 2 | |
| Dec. 31 | Moderate or heavy rain shower | 8° /1° | 10.7 mm | 2 | |
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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?
Prepare for cooler days with highs just around 6° and colder nights, dipping below -1°.
How much rainfall should be expected in Effingham County during December?
Significant rainfall exceeding 168.7 mm is expected in Effingham County during December, occurring over more than 18 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Effingham County in December 2025?
Effingham County typically sees 0 cm of snowfall during December.
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.
December rainfall patterns in Effingham County
Explore the daily rainfall trends and prepare for Effingham Countys December weather 💧
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Where is Effingham County?Get accurate weather forecasts for Effingham County, located at latitude 39.12 and longitude -88.543. Stay updated with localized weather information tailored for Effingham County.
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