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Weather in Allegheny County for December 2024

Your guide to Allegheny County weather in December - trends and predictions
  • In general, the average temperature in Allegheny County at the beginning of December is 7.4 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 6.4 °F by the end of December.

  • Allegheny County sees moderate rainfall in December, averaging 6 rainy days.

  • Allegheny County experiences moderate snowfall in December, with an average of 6 snowy days.

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Average dry days
19
Dry days
Average rainy days
6
Rainy days
Average snowy days
6
Snow days
Average temperatures
8°/-1°
Temperatures
Average wind speed
15 km/h
Avg max wind
Average humidity
75 %
Avg humidity

Allegheny County in December average weather

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Temperatures trend during December in Allegheny County

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 Light rain
Light rain
7° /4° 2.8 mm 0 cm
Dec. 2 Patchy rain possible
Patchy rain possible
14° /7° 0.1 mm 0 cm
Dec. 3 Light rain shower
Light rain shower
12° /6° 16.8 mm 0 cm
Dec. 4 Overcast
Overcast
6° /3° 0 mm 0 cm
Dec. 5 Moderate or heavy snow showers
Moderate or heavy snow showers
4° /1° 2.9 mm 2.5 cm
Dec. 6 Light snow showers
Light snow showers
3° /0° 0.6 mm 0.5 cm
Dec. 7 Overcast
Overcast
6° /0° 0 mm 0 cm
Dec. 8 Partly cloudy
Partly cloudy
14° /2° 0 mm 0 cm
Dec. 9 Patchy rain possible
Patchy rain possible
16° /6° 0.9 mm 0 cm
Dec. 10 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
15° /3° 63.1 mm 0 cm
Dec. 11 Moderate or heavy snow showers
Moderate or heavy snow showers
3° /0° 2 mm 1.6 cm
Dec. 12 Sunny
Sunny
7° /-1° 0 mm 0 cm
Dec. 13 Partly cloudy
Partly cloudy
4° /-1° 0 mm 0 cm
Dec. 14 Sunny
Sunny
5° /-2° 0 mm 0 cm
Dec. 15 Sunny
Sunny
8° /-1° 0 mm 0 cm
Dec. 16 Sunny
Sunny
10° /0° 0 mm 0 cm
Dec. 17 Light rain
Light rain
9° /6° 6.7 mm 0 cm
Dec. 18 Moderate or heavy snow showers
Moderate or heavy snow showers
7° /0° 2.8 mm 1 cm
Dec. 19 Light snow showers
Light snow showers
0° /-2° 0.8 mm 0.7 cm
Dec. 20 Partly cloudy
Partly cloudy
4° /-3° 0 mm 0 cm
Dec. 21 Cloudy
Cloudy
4° /-1° 0 mm 0 cm
Dec. 22 Patchy moderate snow
Patchy moderate snow
6° /0° 2.8 mm 0.6 cm
Dec. 23 Moderate snow
Moderate snow
6° /-7° 4.2 mm 1.3 cm
Dec. 24 Light freezing rain
Light freezing rain
-1° /-6° 0.3 mm 0 cm
Dec. 25 Overcast
Overcast
4° /-3° 0.2 mm 0 cm
Dec. 26 Light freezing rain
Light freezing rain
4° /-2° 2.1 mm 0 cm
Dec. 27 Overcast
Overcast
5° /0° 14.9 mm 0 cm
Dec. 28 Overcast
Overcast
9° /2° 0.8 mm 0 cm
Dec. 29 Cloudy
Cloudy
7° /0° 0 mm 0 cm
Dec. 30 Overcast
Overcast
8° /3° 0.5 mm 0.3 cm
Dec. 31 Heavy rain at times
Heavy rain at times
8° /2° 3.7 mm 0 cm
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Important Notice
Our weather forecast for Allegheny 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 Allegheny County forecast closer to your planned date for the most up-to-date weather information.

Allegheny County in December - FAQ

What are the expected maximum and minimum temperatures in Allegheny County during December?
Prepare for cooler days with highs just around 8° and colder nights, dipping below -1°.
How much rainfall should be expected in Allegheny County during December?
Significant rainfall exceeding 158.3 mm is expected in Allegheny County during December, occurring over more than 6 days. Preparing for wet conditions is recommended in your planning.
Is snowfall common in Allegheny County during December?
Allegheny County experiences an average snowfall of 10.7 cm during December, occurring over 6 days, which may interest winter sports enthusiasts.
What are the typical wind conditions in Allegheny County during December?
The average wind speed in Allegheny County during December is 15 km/h, suggesting breezy to windy conditions, depending on your activities.

December rainfall patterns in Allegheny County

Explore the daily rainfall trends and prepare for Allegheny Countys December weather 💧

December snowfall in Allegheny County

Track daily snowfall levels and discover Allegheny County’s snowy potential this December ❄️
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Location coordinates Where is Allegheny County?

Get accurate weather forecasts for Allegheny County, located at latitude 40.441 and longitude -79.996. Stay updated with localized weather information tailored for Allegheny County.

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