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Weather in Lancaster, Pennsylvania for December 2025

Your guide to Lancaster weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 2 snowy days, Lancaster usually enjoys a light touch of snow in December.
    According to Lancaster snow forecast for December 2025, no snow is expected until the end of the month.

    • Temperatures

  • Until now, December 2025 in Lancaster is slightly cooler than the historical average by -1.5 °F.

  • The forecast for the upcoming days in Lancaster predicts a temperature of 6.1 °F, which is slightly above the historical average.

  • In general, the average temperature in Lancaster at the beginning of December is 2.3 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 7 °F by the end of December.

    • Rain 🌧️

  • Lancaster experiences moderate rainfall in December, with an average of 9 rainy days and a total precipitation of 139.7 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
20
Dry days
Average rainy days
9
Rainy days
Average snowy days
2
Snow days
Average temperatures
4°/-2°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
75 %
Avg humidity

Lancaster Weather December

Move between months or click on a day
November
January
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Overcast
3°
2
Sunny
3°
3
Cloudy
3°
4
Cloudy
3°
5
Patchy rain possible
1°
6
Overcast
1°
7
Partly cloudy
2°
8
Overcast
5°
9
Moderate or heavy rain shower
3°
10
Patchy rain possible
6°
11
Moderate or heavy rain shower
5°
12
Sunny
2°
13
Cloudy
3°
14
Sunny
0°
15
Light freezing rain
-0°
16
Heavy rain at times
6°
17
Overcast
7°
18
Cloudy
5°
19
Heavy rain
10°
20
Sunny
4°
21
Sunny
8°
22
Sunny
1°
23
Light freezing rain
2°
24
Overcast
7°
25
Patchy rain possible
4°
26
Patchy rain possible
14°
27
Moderate rain
9°
28
Patchy rain possible
8°
29
Sunny
2°
30
Partly cloudy
4°
31
Mist
8°

Temperatures trend during December in Lancaster

See the weather trend as well as the moving average line

December weather in Lancaster day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Overcast
Overcast
 3° /-4° 0 mm 0 cm
Dec. 2 Sunny
Sunny
 3° /-3° 57.5 mm 2.3 cm
Dec. 3 Cloudy
Cloudy
 3° /-3° 0 mm 0 cm
Dec. 4 Cloudy
Cloudy
 3° /-5° 0 mm 0 cm
Dec. 5 Patchy rain possible
Patchy rain possible
 1° /-5° 0.2 mm 0 cm
Dec. 6 Overcast
Overcast
 1° /-3° 0 mm 0 cm
Dec. 7 Partly cloudy
Partly cloudy
 2° /-2° 0 mm 0 cm
Dec. 8 Overcast
Overcast
 5° /-3° 0 mm 0 cm
Dec. 9 Moderate or heavy rain shower
Moderate or heavy rain shower
 3° /-5° 4.3 mm 0 cm
Dec. 10 Patchy rain possible
Patchy rain possible
 6° /1° 0.2 mm 0 cm
Dec. 11 Moderate or heavy rain shower
Moderate or heavy rain shower
 5° /-1° 21 mm 0 cm
Dec. 12 Sunny
Sunny
 2° /-3° 0 mm 0 cm
Dec. 13 Cloudy
Cloudy
 3° /-4° 0 mm 0 cm
Dec. 14 Sunny
Sunny
 0° /-6° 2.6 mm 1.1 cm
Dec. 15 Light freezing rain
Light freezing rain
 0° /-7° 2.8 mm 1.7 cm
Dec. 16 Heavy rain at times
Heavy rain at times
 6° /2° 15.1 mm 0 cm
Dec. 17 Overcast
Overcast
 7° /-6° 0 mm 0 cm
Dec. 18 Cloudy
Cloudy
 5° /-7° 0 mm 0 cm
Dec. 19 Heavy rain
Heavy rain
 10° /-2° 113 mm 0 cm
Dec. 20 Sunny
Sunny
 4° /-3° 0 mm 0 cm
Dec. 21 Sunny
Sunny
 8° /-2° 0 mm 0 cm
Dec. 22 Sunny
Sunny
 1° /-5° 0 mm 0 cm
Dec. 23 Light freezing rain
Light freezing rain
 2° /-7° 0.1 mm 0 cm
Dec. 24 Overcast
Overcast
 7° /1° 0 mm 0 cm
Dec. 25 Patchy rain possible
Patchy rain possible
 4° /-1° 0.5 mm 0 cm
Dec. 26 Patchy rain possible
Patchy rain possible
 14° /4° 0.2 mm 0 cm
Dec. 27 Moderate rain
Moderate rain
 9° /5° 6.4 mm 0 cm
Dec. 28 Patchy rain possible
Patchy rain possible
 8° /3° 0.2 mm 0 cm
Dec. 29 Sunny
Sunny
 2° /-3° 0 mm 0 cm
Dec. 30 Partly cloudy
Partly cloudy
 4° /-4° 0 mm 0 cm
Dec. 31 Mist
Mist
 8° /1° 3 mm 0 cm
Next
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.
Change Month
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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 9 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Lancaster in December 2025?
Lancaster experiences an average snowfall of 4.63 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 ❄️
On average, Lancaster sees 2 snowy days during December, with approximately 4.6 cm of total snowfall.

December rainfall patterns in Lancaster

Explore the daily rainfall trends and prepare for Lancasters December weather 💧
Typically, Lancaster has 9 rainy days in December with a total of 139.7 mm of rainfall.

Quick links

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Location coordinates Where is Lancaster?

Get accurate weather forecasts for Lancaster, located at latitude 40.038 and longitude -76.306. Stay updated with localized weather information tailored for Lancaster.

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