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United States weather

Weather in Harrisburg, Pennsylvania for December 2025

Your guide to Harrisburg weather in December - trends and predictions

    Snow Forecast ❄️

  • With an average of 3 snowy days, Harrisburg usually enjoys a light touch of snow in December.
    According to Harrisburg snow forecast for December 2025, 1 snowy day is expected in the next 2 weeks at Sunday, December 14.

    • Temperatures

  • Until now, December 2025 in Harrisburg is cooler than usual, with temperatures averaging 1.2 °F, this is -2.2 °F below the typical seasonal average.

  • The forecast for the upcoming days in Harrisburg predicts a temperature of 7.4 °F, which is slightly above the historical average.

  • 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 8.7 °F by the end of December.

    • Rain 🌧️

  • 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.

    • More

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

Average dry days
17
Dry days
Average rainy days
11
Rainy days
Average snowy days
3
Snow days
Average temperatures
5°/-1°
Temperatures
Average wind speed
18 km/h
Avg max wind
Average humidity
73 %
Avg humidity

Harrisburg Weather December

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

Temperatures trend during December in Harrisburg

See the weather trend as well as the moving average line

December weather in Harrisburg day by day

Click on a date for more information
November January
Date Weather Temperatures Rain Snow More
Dec. 1 Overcast
Overcast
 3° /-3° 0 mm 0 cm
Dec. 2 Partly cloudy
Partly cloudy
 3° /-2° 42.2 mm 3 cm
Dec. 3 Cloudy
Cloudy
 2° /-2° 0 mm 0 cm
Dec. 4 Overcast
Overcast
 2° /-4° 0 mm 0 cm
Dec. 5 Partly cloudy
Partly cloudy
 0° /-5° 0 mm 0 cm
Dec. 6 Overcast
Overcast
 2° /-3° 0 mm 0 cm
Dec. 7 Overcast
Overcast
 2° /-2° 0 mm 0 cm
Dec. 8 Overcast
Overcast
 5° /-3° 0 mm 0 cm
Dec. 9 Fog
Fog
 5° /-4° 7.1 mm 0 cm
Dec. 10 Light rain shower
Light rain shower
 9° /1° 17.1 mm 0 cm
Dec. 11 Moderate snow
Moderate snow
 4° /-1° 14.1 mm 1.8 cm
Dec. 12 Sunny
Sunny
 3° /-3° 0 mm 0 cm
Dec. 13 Partly cloudy
Partly cloudy
 3° /-7° 0 mm 0 cm
Dec. 14 Moderate or heavy snow showers
Moderate or heavy snow showers
 -1° /-6° 10.3 mm 5.6 cm
Dec. 15 Cloudy
Cloudy
 -1° /-7° 0 mm 0 cm
Dec. 16 Partly cloudy
Partly cloudy
 2° /-7° 0 mm 0 cm
Dec. 17 Overcast
Overcast
 6° /-3° 0.1 mm 0 cm
Dec. 18 Cloudy
Cloudy
 12° /5° 0 mm 0 cm
Dec. 19 Patchy rain possible
Patchy rain possible
 10° /8° 2.2 mm 0 cm
Dec. 20 Patchy rain possible
Patchy rain possible
 7° /4° 4.9 mm 0 cm
Dec. 21 Patchy rain possible
Patchy rain possible
 6° /4° 0.8 mm 0 cm
Dec. 22 Cloudy
Cloudy
 7° /1° 0 mm 0 cm
Dec. 23 Patchy rain possible
Patchy rain possible
 14° /7° 0.2 mm 0 cm
Dec. 24 Patchy rain possible
Patchy rain possible
 19° /8° 0.1 mm 0 cm
Dec. 25 Patchy rain possible
Patchy rain possible
 5° /3° 0.2 mm 0 cm
Dec. 26 Moderate rain
Moderate rain
 15° /7° 7.9 mm 0 cm
Dec. 27 Moderate rain
Moderate rain
 7° /3° 12.6 mm 0 cm
Dec. 28 Patchy rain possible
Patchy rain possible
 7° /4° 27.7 mm 0.8 cm
Dec. 29 Light drizzle
Light drizzle
 11° /3° 4.5 mm 0 cm
Dec. 30 Overcast
Overcast
 9° /3° 8.4 mm 0 cm
Dec. 31 Cloudy
Cloudy
 7° /-1° 3.5 mm 0 cm
Next
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.
Change Month
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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 ❄️
On average, Harrisburg sees 3 snowy days during December, with approximately 4 cm of total snowfall.

December rainfall patterns in Harrisburg

Explore the daily rainfall trends and prepare for Harrisburgs December weather 💧
Typically, Harrisburg has 11 rainy days in December with a total of 173.8 mm of rainfall.

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Location coordinates Where is Harrisburg?

Get accurate weather forecasts for Harrisburg, located at latitude 40.274 and longitude -76.884. Stay updated with localized weather information tailored for Harrisburg.

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