Climatological  Data
Copyright © 1996-2017 STORMFAX

 Weather in Philadelphia the past 48 hours !

Philadelphia, PA
NWS/1971-2000 

AVERAGE TEMPERATURE
YearJanFebMarAprMayJuneJulyAugSepOctNovDec
55.3 F32.334.843.253.163.572.377.676.368.857.247.137.4

AVERAGE HIGH TEMPERATURE
YearJanFebMarAprMayJuneJulyAugSepOctNovDec
63.2 F39.042.151.362.072.180.685.584.076.765.754.844.2

AVERAGE LOW TEMPERATURE
YearJanFebMarAprMayJuneJulyAugSepOctNovDec
47.4 F25.527.535.144.254.864.069.768.560.948.739.530.6

HIGHEST RECORDED TEMPERATURE (All-Time)
EverJanFebMarAprMayJuneJulyAugSepOctNovDec
106 F7479879597102104106102968473
When195019301945200219911934196619181881194119501998

LOWEST RECORDED TEMPERATURE (All-Time)
EverJanFebMarAprMayJuneJulyAugSepOctNovDec
-11 F-7-115142844514435258-5
When198419341872192319661984196619861963196918751880

MEAN NUMBER OF DAYS Below 32F
TotalJanFebMarAprMayJuneJulyAugSepOctNovDec
87 days2521132000001719

MEAN NUMBER OF DAYS Above 90F
TotalJanFebMarAprMayJuneJulyAugSepOctNovDec
24 days0000151072000

NORMAL HEATING DEGREE DAYS
TotalJanFebMarAprMayJuneJulyAugSepOctNovDec
47591020858681362113121239269545857

NORMAL COOLING DEGREE DAYS
TotalJanFebMarAprMayJuneJulyAugSepOctNovDec
123500210702343953511521920

AVERAGE PRECIPITATION (Inches)
TotalJanFebMarAprMayJuneJulyAugSepOctNovDec
42.05"3.522.743.813.493.893.294.393.823.882.753.163.31

AVERAGE SNOWFALL (Inches)
TotalJanFebMarAprMayJuneJulyAugSepOctNovDec
19.3"6.46.63.20.6000000.10.42.0

AVERAGE WIND SPEED
MPHJanFebMarAprMayJuneJulyAugSepOctNovDec
9.610.310.911.410.99.58.88.27.98.38.99.610.1

AVERAGE DAYS of PRECIPITATION
TotalJanFebMarAprMayJuneJulyAugSepOctNovDec
117 days119111111109988910

PERCENT DAYS with SUNSHINE
TotalJanFebMarAprMayJuneJulyAugSepOctNovDec
56 %495355555662616259595249

MEAN NUMBER OF CLEAR DAYS
TotalJanFebMarAprMayJuneJulyAugSepOctNovDec
93 days77876778101078

MEAN NUMBER OF PARTLY CLOUDY DAYS
TotalJanFebMarAprMayJuneJulyAugSepOctNovDec
112 days8789111212119998

MEAN NUMBER OF CLOUDY DAYS
TotalJanFebMarAprMayJuneJulyAugSepOctNovDec
160 days161415141411121211121415

MEAN NUMBER OF RAINY DAYS
TotalJanFebMarAprMayJuneJulyAugSepOctNovDec
117 days119111111109988910

AVERAGE MORNING Relative Humidity
YearJanFebMarAprMayJuneJulyAugSepOctNovDec
77 %747373717577788183837875

AVERAGE AFTERNOON Relative Humidity
YearJanFebMarAprMayJuneJulyAugSepOctNovDec
55 %605552505354545556555658

Normal/Record Daily Temperatures

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