Lancaster (PA)
December
Weather in Lancaster, Pennsylvania for December 2025
Your guide to Lancaster weather in December - trends and predictions
With an average of 2 snowy days, Lancaster usually enjoys a light touch of snow in December.
In general, the average temperature in Lancaster 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 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 Weather December
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Temperatures trend during December in Lancaster
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December weather in Lancaster 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 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 forecast closer to your planned date for the most up-to-date weather information.
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Lancaster in December - FAQ
What are the expected maximum and minimum temperatures in Lancaster 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 during December?
Significant rainfall exceeding 139.7 mm is expected in Lancaster during December, occurring over more than 13 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Lancaster in December 2025?
Lancaster experiences an average snowfall of 4.6 cm during December, occurring over 2 days.
What are the typical wind conditions in Lancaster during December?
The average wind speed in Lancaster during December is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
Lancaster snow forecast December 2025
Track daily snowfall levels and discover Lancaster’s snowy potential this December ❄️
December rainfall patterns in Lancaster
Explore the daily rainfall trends and prepare for Lancasters December weather 💧
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