Lancaster County (Lancaster)
December
Weather in Lancaster County, Pennsylvania for December 2025
Your guide to Lancaster County weather in December - trends and predictions
With an average of 2 snowy days, Lancaster County usually enjoys a light touch of snow in December.
In general, the average temperature in Lancaster County at the beginning of December is 2.4 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 7 °F by the end of December.
The climate of Lancaster County in December is notably wet, with an average of 13 rainy days, and a total of 139.7 mm of precipitation.
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Snow Forecast ❄️
Temperatures
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16
Dry days
13
Rainy days
2
Snow days
4°/-2°
Temperatures
21 km/h
Avg max wind
75 %
Avg humidity
Lancaster County Weather December
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Temperatures trend during December in Lancaster County
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December weather in Lancaster County day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Dec. 1 |  Overcast | 3° /-5° | 0 mm | 0 cm | |
| Dec. 2 |  Sunny | 4° /-5° | 0 mm | 0 cm | |
| Dec. 3 |  Cloudy | 3° /-3° | 0 mm | 0 cm | |
| Dec. 4 | Cloudy | 2° /-5° | 0 mm | 0 cm | |
| Dec. 5 |  Patchy rain possible | 3° /-3° | 0.5 mm | 0 cm | |
| Dec. 6 | Overcast | 0° /-3° | 0 mm | 0 cm | |
| Dec. 7 |  Partly cloudy | 2° /-3° | 0 mm | 0 cm | |
| Dec. 8 | Overcast | 10° /0° | 0 mm | 0 cm | |
| Dec. 9 |  Moderate or heavy rain shower | 6° /0° | 8.6 mm | 0 cm | |
| Dec. 10 | Patchy rain possible | 9° /4° | 0.4 mm | 0 cm | |
| Dec. 11 | Moderate or heavy rain shower | 9° /2° | 42 mm | 0 cm | |
| Dec. 12 | Sunny | 3° /-3° | 0 mm | 0 cm | |
| Dec. 13 | Cloudy | 2° /-4° | 0 mm | 0 cm | |
| Dec. 14 | Sunny | 0° /-6° | 0 mm | 0 cm | |
| Dec. 15 |  Light freezing rain | 1° /-5° | 5.5 mm | 3.4 cm | |
| Dec. 16 |  Heavy rain at times | 6° /2° | 15.1 mm | 0 cm | |
| Dec. 17 | Overcast | 12° /4° | 8.2 mm | 0 cm | |
| Dec. 18 | Moderate or heavy rain shower | 6° /-1° | 6.1 mm | 0 cm | |
| Dec. 19 | Partly cloudy | 5° /0° | 0.1 mm | 0 cm | |
| Dec. 20 | Light freezing rain | 1° /-2° | 2.3 mm | 0 cm | |
| Dec. 21 | Overcast | 0° /-5° | 0 mm | 0 cm | |
| Dec. 22 | Sunny | -2° /-7° | 0 mm | 0 cm | |
| Dec. 23 | Cloudy | -1° /-10° | 0 mm | 0 cm | |
| Dec. 24 | Light freezing rain | 4° /-5° | 0.5 mm | 0 cm | |
| Dec. 25 | Light freezing rain | 3° /-2° | 0.2 mm | 0 cm | |
| Dec. 26 | Cloudy | 2° /-6° | 0 mm | 0 cm | |
| Dec. 27 | Overcast | 3° /-5° | 0.3 mm | 0 cm | |
| Dec. 28 | Moderate or heavy rain shower | 7° /0° | 29 mm | 1.2 cm | |
| Dec. 29 | Moderate rain at times | 14° /4° | 2.2 mm | 0 cm | |
| Dec. 30 | Cloudy | 12° /5° | 15.7 mm | 0 cm | |
| Dec. 31 |  Mist | 8° /1° | 3 mm | 0 cm | |
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Important Notice
Our weather forecast for Lancaster 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 Lancaster County forecast closer to your planned date for the most up-to-date weather information.
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Lancaster County in December - FAQ
What are the expected maximum and minimum temperatures in Lancaster 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 Lancaster County during December?
Significant rainfall exceeding 139.7 mm is expected in Lancaster County during December, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Lancaster County in December 2025?
Lancaster County experiences an average snowfall of 4.6 cm during December, occurring over 2 days.
What are the typical wind conditions in Lancaster County during December?
The average wind speed in Lancaster County during December is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
Lancaster County snow forecast December 2025
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December rainfall patterns in Lancaster County
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