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Get the monthly weather forecast for Philadelphia, PA, including daily high/low, historical averages, to help you plan ahead.
Get the monthly weather forecast for Philly, PA, including daily high/low, historical averages, to help you plan ahead.
Jul 3, 2024 · In Philadelphia, in December, the average water temperature is 47.8°F (8.8°C). At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent.
- The high-temperature in Philadelphia during December is 44.1°F and the low-temperature is 32.9°F . The average heat index (a.k.a. 'felt air tempera...
- In December, the average relative humidity in Philadelphia is 76% .
- In Philadelphia, Pennsylvania, in December, it is raining for 7.5 days , with typically 1.18" of accumulated precipitation .
- In December, in Philadelphia, Pennsylvania, it is snowing for 1.6 days . Throughout December, 0.2" of snow is accumulated.
- In Philadelphia, Pennsylvania, the average seawater temperature in December is 47.8°F . Swimming in 47.8°F is considered life-threatening. Even a f...
- With an average of 9h and 24min of daylight , December has the shortest days of the year in Philadelphia.
- In December, the average day length is 9h and 23min .
- In December, on the first day of the month, sunrise is at 7:03 am and sunset at 4:36 pm . On the last day of the month, in Philadelphia, sunrise is...
- In December, the average sunshine duration in Philadelphia is 5h .
Check accurate weather in December in Philadelphia (PA). Expect Philadelphia December temperature around 9°C (47°F). Read clothing tips & recommended activities.
Weather reports from December 2021 in Philadelphia, Pennsylvania, USA with highs and lows.
Dec 15, 2015 · PHL reported a record 5 straight days of 100 degree heat, and BAL. reported a record 8 days of 100 degree weather for the year. Afternoon and evening. thunderstorms produced severe weather along the Mid Atlantic Coast, and over Srn.
Jul 3, 2024 · Winter weather in Philadelphia. The winter months from December through February observe the lowest average temperatures, plummeting to 25.5°F (-3.6°C) in January. The precipitation mainly falls as snow during this season, with February seeing the highest level at 0.98" (25mm).
