Delaware County (Glen Mills)
December
Weather in Delaware County for December 2025
Your guide to Delaware County weather in December - trends and predictions
With an average of 2 snowy days, Delaware County usually enjoys a light touch of snow in December.
In general, the average temperature in Delaware County at the beginning of December is 5.9 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 7.9 °F by the end of December.
Delaware County experiences moderate rainfall in December, with an average of 8 rainy days and a total precipitation of 164.3 mm.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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21
Dry days
8
Rainy days
2
Snow days
7°/2°
Temperatures
18 km/h
Avg max wind
74 %
Avg humidity
Delaware County Weather December
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  5° | 2  7° | 3  10° | 4 7° | 5 4° | 6 4° | |
| 7  4° | 8  10° | 9 8° | 10  12° | 11  9° | 12  5° | 13 2° |
| 14 3° | 15  5° | 16 10° | 17  12° | 18 10° | 19 5° | 20 4° |
| 21 3° | 22 2° | 23 2° | 24 5° | 25 6° | 26 5° | 27 7° |
| 28 8° | 29 13° | 30 9° | 31 7° |
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Temperatures trend during December in Delaware 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 | Overcast | 5° /-1° | 0.8 mm | 0 cm | |
| Dec. 2 | Fog | 7° /0° | 0 mm | 0 cm | |
| Dec. 3 | Heavy rain | 10° /1° | 14.4 mm | 0 cm | |
| Dec. 4 | Overcast | 7° /-1° | 0 mm | 0 cm | |
| Dec. 5 | Overcast | 4° /-1° | 0 mm | 0 cm | |
| Dec. 6 | Mist | 4° /-2° | 0 mm | 0 cm | |
| Dec. 7 | Light snow | 4° /-3° | 0 mm | 0 cm | |
| Dec. 8 | Cloudy | 10° /0° | 0 mm | 0 cm | |
| Dec. 9 | Fog | 8° /0° | 10.6 mm | 0 cm | |
| Dec. 10 | Light rain shower | 12° /3° | 14.9 mm | 0 cm | |
| Dec. 11 | Light snow showers | 9° /2° | 49.3 mm | 1.5 cm | |
| Dec. 12 | Partly cloudy | 5° /-2° | 0 mm | 0 cm | |
| Dec. 13 | Overcast | 2° /-2° | 0 mm | 0 cm | |
| Dec. 14 | Overcast | 3° /-3° | 0 mm | 0 cm | |
| Dec. 15 | Sunny | 5° /-2° | 0 mm | 0 cm | |
| Dec. 16 | Overcast | 10° /2° | 12.6 mm | 0 cm | |
| Dec. 17 | Light rain | 12° /5° | 20.9 mm | 0 cm | |
| Dec. 18 | Light rain | 10° /2° | 23 mm | 0 cm | |
| Dec. 19 | Overcast | 5° /0° | 1.5 mm | 0.1 cm | |
| Dec. 20 | Sunny | 4° /-1° | 0 mm | 0 cm | |
| Dec. 21 | Sunny | 3° /-2° | 0.9 mm | 0.7 cm | |
| Dec. 22 | Overcast | 2° /-4° | 0 mm | 0 cm | |
| Dec. 23 | Overcast | 2° /-4° | 0 mm | 0 cm | |
| Dec. 24 | Light drizzle | 5° /0° | 2.4 mm | 0.6 cm | |
| Dec. 25 | Partly cloudy | 6° /2° | 0 mm | 0 cm | |
| Dec. 26 | Patchy rain possible | 5° /-1° | 0.1 mm | 0 cm | |
| Dec. 27 | Heavy rain | 7° /2° | 19.7 mm | 0 cm | |
| Dec. 28 | Fog | 8° /4° | 25.9 mm | 0.8 cm | |
| Dec. 29 | Light rain shower | 13° /5° | 1 mm | 0 cm | |
| Dec. 30 | Overcast | 9° /3° | 20.4 mm | 0 cm | |
| Dec. 31 | Partly cloudy | 7° /0° | 0 mm | 0 cm | |
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Important Notice
Our weather forecast for Delaware 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 Delaware County forecast closer to your planned date for the most up-to-date weather information.
Delaware County in December - FAQ
What are the expected maximum and minimum temperatures in Delaware County during December?
Prepare for cooler days with highs just around 7° and colder nights, dipping below 2°.
How much rainfall should be expected in Delaware County during December?
Significant rainfall exceeding 164.3 mm is expected in Delaware County during December, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Delaware County in December 2025?
Delaware County experiences an average snowfall of 3.185 cm during December, occurring over 2 days.
What are the typical wind conditions in Delaware County during December?
The average wind speed in Delaware County during December is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
Delaware County snow forecast December 2025
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December rainfall patterns in Delaware County
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Where is Delaware County?Get accurate weather forecasts for Delaware County, located at latitude 39.919 and longitude -75.492. Stay updated with localized weather information tailored for Delaware County.
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