Harrisburg
December
Weather in Harrisburg for December 2025
Your guide to Harrisburg weather in December - trends and predictions
With an average of 3 snowy days, Harrisburg usually enjoys a light touch of snow in December.
In general, the average temperature in Harrisburg at the beginning of December is 2 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 7.3 °F by the end of December.
The climate of Harrisburg in December is notably wet, with an average of 11 rainy days, and a total of 173.8 mm of precipitation.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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17
Dry days
11
Rainy days
3
Snow days
5°/-1°
Temperatures
18 km/h
Avg max wind
73 %
Avg humidity
Harrisburg Weather December
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  3° | 2  4° | 3  2° | 4 2° | 5 1° | 6 0° | |
| 7 2° | 8 9° | 9  8° | 10  11° | 11  6° | 12  4° | 13 3° |
| 14 3° | 15 6° | 16 7° | 17  12° | 18 8° | 19  3° | 20 4° |
| 21 3° | 22 2° | 23 3° | 24 5° | 25 6° | 26 4° | 27  7° |
| 28 7° | 29 11° | 30 9° | 31 7° |
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Temperatures trend during December in Harrisburg
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 | 3° /-5° | 0 mm | 0 cm | |
| Dec. 2 | Partly cloudy | 4° /-3° | 0 mm | 0 cm | |
| Dec. 3 | Cloudy | 2° /-1° | 0 mm | 0 cm | |
| Dec. 4 | Overcast | 2° /-3° | 0 mm | 0 cm | |
| Dec. 5 | Partly cloudy | 1° /-2° | 0 mm | 0 cm | |
| Dec. 6 | Overcast | 0° /-2° | 0 mm | 0 cm | |
| Dec. 7 | Overcast | 2° /-3° | 0 mm | 0 cm | |
| Dec. 8 | Overcast | 9° /0° | 0 mm | 0 cm | |
| Dec. 9 | Fog | 8° /-1° | 10.6 mm | 0 cm | |
| Dec. 10 | Light rain shower | 11° /2° | 25.6 mm | 0 cm | |
| Dec. 11 | Moderate snow | 6° /1° | 21.2 mm | 2.7 cm | |
| Dec. 12 | Sunny | 4° /-3° | 0 mm | 0 cm | |
| Dec. 13 | Overcast | 3° /-2° | 0 mm | 0 cm | |
| Dec. 14 | Overcast | 3° /-4° | 0 mm | 0 cm | |
| Dec. 15 | Sunny | 6° /-3° | 0 mm | 0 cm | |
| Dec. 16 | Overcast | 7° /0° | 17.1 mm | 0 cm | |
| Dec. 17 | Light rain | 12° /2° | 21.2 mm | 0 cm | |
| Dec. 18 | Light drizzle | 8° /0° | 16.7 mm | 0 cm | |
| Dec. 19 | Light freezing rain | 3° /0° | 1.4 mm | 0 cm | |
| Dec. 20 | Sunny | 4° /-1° | 0 mm | 0 cm | |
| Dec. 21 | Sunny | 3° /-2° | 0 mm | 0 cm | |
| Dec. 22 | Overcast | 2° /-4° | 0 mm | 0 cm | |
| Dec. 23 | Light drizzle | 3° /-4° | 0.2 mm | 0 cm | |
| Dec. 24 | Patchy rain possible | 5° /0° | 1.9 mm | 0.6 cm | |
| Dec. 25 | Partly cloudy | 6° /1° | 0 mm | 0 cm | |
| Dec. 26 | Light drizzle | 4° /1° | 1.2 mm | 0 cm | |
| Dec. 27 | Moderate rain | 7° /3° | 12.6 mm | 0 cm | |
| Dec. 28 | Patchy rain possible | 7° /4° | 27.7 mm | 0.8 cm | |
| Dec. 29 | Light drizzle | 11° /3° | 4.5 mm | 0 cm | |
| Dec. 30 | Overcast | 9° /3° | 8.4 mm | 0 cm | |
| Dec. 31 | Cloudy | 7° /-1° | 3.5 mm | 0 cm | |
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Important Notice
Our weather forecast for Harrisburg 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 Harrisburg forecast closer to your planned date for the most up-to-date weather information.
Harrisburg in December - FAQ
What are the expected maximum and minimum temperatures in Harrisburg during December?
Brace for cold days with temperatures not exceeding 5° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Harrisburg during December?
Significant rainfall exceeding 173.8 mm is expected in Harrisburg during December, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Harrisburg in December 2025?
Harrisburg experiences an average snowfall of 4.015 cm during December, occurring over 3 days.
What are the typical wind conditions in Harrisburg during December?
The average wind speed in Harrisburg during December is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
Harrisburg snow forecast December 2025
Track daily snowfall levels and discover Harrisburg’s snowy potential this December ❄️
December rainfall patterns in Harrisburg
Explore the daily rainfall trends and prepare for Harrisburgs December weather 💧
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