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Dauphin County (Harrisburg)
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Weather in Dauphin County, Pennsylvania for December 2025

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

    Snow Forecast ❄️

  • With an average of 3 snowy days, Dauphin County usually enjoys a light touch of snow in December.
    According to Dauphin County snow forecast for December 2025, no snow is expected until the end of the month.

    • Temperatures

  • Until now, December 2025 in Dauphin County is cooler than usual, with temperatures averaging 1 °F, this is -2.2 °F below the typical seasonal average.

  • The forecast for the upcoming days in Dauphin County predicts a temperature of 5.4 °F, which is slightly above the historical average.

  • In general, the average temperature in Dauphin County at the beginning of December is 2 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 6.1 °F by the end of December.

    • Rain 🌧️

  • The climate of Dauphin County 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

Dauphin County 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
Overcast
3°
14
Overcast
2°
15
Overcast
3°
16
Overcast
7°
17
Overcast
6°
18
Mist
5°
19
Heavy rain
9°
20
Partly cloudy
3°
21
Sunny
7°
22
Sunny
1°
23
Partly cloudy
2°
24
Overcast
7°
25
Patchy rain possible
4°
26
Patchy rain possible
11°
27
Moderate rain
8°
28
Patchy rain possible
7°
29
Sunny
2°
30
Partly cloudy
4°
31
Cloudy
7°

Temperatures trend during December in Dauphin County

See the weather trend as well as the moving average line

December weather in Dauphin County 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 Overcast
Overcast
 3° /-3° 0 mm 0 cm
Dec. 14 Overcast
Overcast
 2° /-5° 0 mm 0 cm
Dec. 15 Overcast
Overcast
 3° /-5° 0 mm 0 cm
Dec. 16 Overcast
Overcast
 7° /0° 17.1 mm 0 cm
Dec. 17 Overcast
Overcast
 6° /-7° 0 mm 0 cm
Dec. 18 Mist
Mist
 5° /-6° 0 mm 0 cm
Dec. 19 Heavy rain
Heavy rain
 9° /-2° 114.8 mm 0 cm
Dec. 20 Partly cloudy
Partly cloudy
 3° /-3° 0 mm 0 cm
Dec. 21 Sunny
Sunny
 7° /-3° 0 mm 0 cm
Dec. 22 Sunny
Sunny
 1° /-5° 0 mm 0 cm
Dec. 23 Partly cloudy
Partly cloudy
 2° /-7° 0 mm 0 cm
Dec. 24 Overcast
Overcast
 7° /1° 0 mm 0 cm
Dec. 25 Patchy rain possible
Patchy rain possible
 4° /-2° 2 mm 0 cm
Dec. 26 Patchy rain possible
Patchy rain possible
 11° /3° 1 mm 0 cm
Dec. 27 Moderate rain
Moderate rain
 8° /5° 8.4 mm 0 cm
Dec. 28 Patchy rain possible
Patchy rain possible
 7° /2° 0.8 mm 0 cm
Dec. 29 Sunny
Sunny
 2° /-3° 0 mm 0 cm
Dec. 30 Partly cloudy
Partly cloudy
 4° /-3° 0 mm 0 cm
Dec. 31 Cloudy
Cloudy
 7° /-1° 3.5 mm 0 cm
Next
Important Notice
Our weather forecast for Dauphin 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 Dauphin County forecast closer to your planned date for the most up-to-date weather information.
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Dauphin County in December - FAQ

What are the expected maximum and minimum temperatures in Dauphin County 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 Dauphin County during December?
Significant rainfall exceeding 173.8 mm is expected in Dauphin County during December, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Dauphin County in December 2025?
Dauphin County experiences an average snowfall of 4.015 cm during December, occurring over 3 days.
What are the typical wind conditions in Dauphin County during December?
The average wind speed in Dauphin County during December is 18 km/h, suggesting breezy to windy conditions, depending on your activities.

Dauphin County snow forecast December 2025

Track daily snowfall levels and discover Dauphin County’s snowy potential this December ❄️
On average, Dauphin County sees 3 snowy days during December, with approximately 4 cm of total snowfall.

December rainfall patterns in Dauphin County

Explore the daily rainfall trends and prepare for Dauphin Countys December weather 💧
Typically, Dauphin County has 11 rainy days in December with a total of 173.8 mm of rainfall.
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Location coordinates Where is Dauphin County?

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

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