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United States weather

Weather in Lehigh County, Pennsylvania for December 2025

Your guide to Lehigh County weather in December - trends and predictions

    Official Weather Alert ⚠️

  • Winter Weather Advisory - See hour by hour.

    • Snow Forecast ❄️

  • With an average of 5 snowy days, Lehigh County usually enjoys a light touch of snow in December.
    According to Lehigh County snow forecast for December 2025, 1 snowy day is expected in the next 2 weeks at Tuesday, December 2.

    • Temperatures

  • The forecast for the next days in Lehigh County predicts temperatures to be around 2 °F, close to the historical average.

  • In general, the average temperature in Lehigh County at the beginning of December is 1.6 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 5.3 °F by the end of December.

    • More

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

Average dry days
16
Dry days
Average rainy days
10
Rainy days
Average snowy days
5
Snow days
Average temperatures
4°/-2°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
77 %
Avg humidity

Lehigh County Weather December

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

Temperatures trend during December in Lehigh County

See the weather trend as well as the moving average line

December weather in Lehigh County day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Overcast
Overcast
 2° /-4° 0 mm 0 cm
Dec. 2 Light rain
Light rain
 3° /-3° 17.7 mm 1.1 cm
Dec. 3 Sunny
Sunny
 2° /-4° 0 mm 0 cm
Dec. 4 Mist
Mist
 3° /-9° 0 mm 0 cm
Dec. 5 Sunny
Sunny
 -3° /-13° 0 mm 0 cm
Dec. 6 Overcast
Overcast
 2° /-8° 0 mm 0 cm
Dec. 7 Freezing fog
Freezing fog
 2° /-5° 0.6 mm 0 cm
Dec. 8 Sunny
Sunny
 -3° /-7° 0 mm 0 cm
Dec. 9 Sunny
Sunny
 -1° /-8° 0 mm 0 cm
Dec. 10 Light freezing rain
Light freezing rain
 4° /-4° 0.1 mm 0 cm
Dec. 11 Moderate or heavy snow showers
Moderate or heavy snow showers
 2° /-4° 2 mm 0 cm
Dec. 12 Sunny
Sunny
 1° /-5° 0 mm 0 cm
Dec. 13 Sunny
Sunny
 2° /-6° 0 mm 0 cm
Dec. 14 Patchy rain possible
Patchy rain possible
 4° /-3° 0.5 mm 0 cm
Dec. 15 Patchy rain possible
Patchy rain possible
 3° /-2° 4.9 mm 0 cm
Dec. 16 Moderate or heavy rain shower
Moderate or heavy rain shower
 6° /0° 22.9 mm 2 cm
Dec. 17 Overcast
Overcast
 11° /3° 19 mm 0 cm
Dec. 18 Moderate or heavy rain shower
Moderate or heavy rain shower
 6° /1° 8.7 mm 0 cm
Dec. 19 Overcast
Overcast
 4° /0° 1.5 mm 0.9 cm
Dec. 20 Light freezing rain
Light freezing rain
 1° /-1° 3.1 mm 0 cm
Dec. 21 Light freezing rain
Light freezing rain
 0° /-6° 1.4 mm 0 cm
Dec. 22 Sunny
Sunny
 -5° /-10° 0 mm 0 cm
Dec. 23 Partly cloudy
Partly cloudy
 -3° /-11° 0 mm 0 cm
Dec. 24 Patchy moderate snow
Patchy moderate snow
 2° /-5° 1.1 mm 0.4 cm
Dec. 25 Cloudy
Cloudy
 1° /-3° 0 mm 0 cm
Dec. 26 Cloudy
Cloudy
 0° /-6° 0 mm 0 cm
Dec. 27 Partly cloudy
Partly cloudy
 3° /-5° 0 mm 0 cm
Dec. 28 Moderate or heavy snow showers
Moderate or heavy snow showers
 6° /0° 33.5 mm 5.9 cm
Dec. 29 Heavy rain at times
Heavy rain at times
 12° /2° 9.4 mm 0 cm
Dec. 30 Moderate or heavy rain shower
Moderate or heavy rain shower
 11° /3° 35.4 mm 0 cm
Dec. 31 Freezing fog
Freezing fog
 4° /-2° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Lehigh 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 Lehigh County forecast closer to your planned date for the most up-to-date weather information.
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Lehigh County in December - FAQ

What are the expected maximum and minimum temperatures in Lehigh 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 Lehigh County during December?
Significant rainfall exceeding 198.9 mm is expected in Lehigh County during December, occurring over more than 10 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Lehigh County in December 2025?
Lehigh County experiences an average snowfall of 11.18 cm during December, occurring over 5 days.
What are the typical wind conditions in Lehigh County during December?
The average wind speed in Lehigh County during December is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

Lehigh County snow forecast December 2025

Track daily snowfall levels and discover Lehigh County’s snowy potential this December ❄️
On average, Lehigh County sees 5 snowy days during December, with approximately 11.2 cm of total snowfall.

December rainfall patterns in Lehigh County

Explore the daily rainfall trends and prepare for Lehigh Countys December weather 💧
Typically, Lehigh County has 10 rainy days in December with a total of 198.9 mm of rainfall.
Top locations in Lehigh County
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AllentownDorney Park
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Location coordinates Where is Lehigh County?

Get accurate weather forecasts for Lehigh County, located at latitude 40.608 and longitude -75.49. Stay updated with localized weather information tailored for Lehigh County.

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