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Weather in December in Philadelphia, Pennsylvania

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< December >
 
Normal Max/ High Temperature 6°C (43°F)
 
Average Temperature 2°C (36°F)
 
Min/ Low Temperature -2°C (28°F)
 
Normal Precipitation 86mm (3.4in)
Number of Wet Days (probability of rain on a day) 10 (32%)
Average Sunlight per day 04:38
Average Daylight per day 09:22
Sunny (Cloudy) Daylight Hours 50% (50%)
Sun altitude at solar noon on the 21st day.
26.7°


  • The average temperature in Philadelphia, Pennsylvania in December is very cool at 2.1 °C (35.78 °F).
  • Afternoons can be cool with average high temperatures reaching 6.3 °C (43.3 °F).
  • Overnight temperatures are generally slightly cold with an average low of -2.2 °C (28 °F).
  • The variation/ range of daily mean temperatures in December is 8.5 °C (15.3 °F).
  • The weather in December is dryish with sleet, snow or rain at times. Just 85.9mm (3.4in) of fluid falls during on average 10 days.
  • The skies in Philadelphia, Pennsylvania are slightly fair with on balance a modest 4:38 of brilliant solar radiation daily.
  • The shortest day is 9:19 long and the longest day is 9:31 long with an average length of 9:22.
  • There are approximately 4:34 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
  • It is sunny approximately 50.4% of daylight hours and cloudy 49.6% of daylight hours.

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Weather Trend Graph for December in Philadelphia, Pennsylvania, Usa

Graph of weather in Philadelphia, Pennsylvania in December

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