A C182 PLT RUNS OFF THE END OF RWY 35 AT PHL DUE TO AN UNSTABILIZED APCH AND XWIND.

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I WAS ON APCH TO ZZZ; RWY 35 IN A C182. THE TWR CTLR REQUESTED BEST FORWARD SPD TO THE RWY. I RECALL THERE WAS TFC FOLLOWING ME FOR THE RWY. AT APPROX MID-RIVER ON THE APCH; AND ESTABLISHED ON THE VASI; I REDUCED PWR TO IDLE; BUT MAINTAINED A HIGHER APCH SPD. THE WINDS WERE; AS I RECALL; 280 DEGS AT 14 KTS OR 16 KTS; GUSTING TO 20 KTS. THE AIR WAS QUITE TURBULENT AND I HAD MY HANDS FULL KEEPING MY RWY ALIGNMENT WITH THE TURB. THE ACFT TOUCHED DOWN; BUT WITH THE WIND GUSTS; LIFTED BACK OFF INTO THE AIR. THIS HAPPENED SEVERAL TIMES WHILE I WORKED TO MAINTAIN DIRECTIONAL CTL IN THE GUSTY XWIND. I LANDED; BUT AS I APCHED THE DEP END OF THE RWY; I REALIZED I WOULD NOT BE ABLE TO STOP; SO I STEERED SLIGHTLY L TO AVOID LIGHTS AND WENT UP A PAVED SVC ROAD. I THEN STEERED THE ACFT TO THE R ONTO THE GRASS TO AVOID THE NEXT SET OF LIGHTS WHICH WERE PART OF THE APCH LIGHTING FOR RWY 17. THE ACFT CAME TO A STOP IN THE WET GRASS AND DIRT WITH THE NOSEWHEEL APPROX 15 FT OFF THE PAVED SURFACE. I NOTIFIED THE TWR CTLR THAT I OVERRAN THE RWY AND WAS STOPPED; IN THE GRASS OFF RWY 35. THE ACFT WAS SECURED AND THERE WAS NO INJURY TO PERSONS ON BOARD. THE ACFT WAS MANUALLY PUSHED BACK ONTO THE PAVED SURFACE; TURNED AROUND AND PUSHED TO THE EDGE OF THE RWY. AT THAT POINT; NOTING NO DAMAGE TO THE ACFT; I STARTED THE ACFT; CONTACTED TWR TO TAXI CLR OF THE RWY OVERRUN TO THE FBO AND RECEIVED TAXI CLRNC. I TAXIED TO THE FBO AND SHUT DOWN. THE ACFT WAS VISUALLY CHKED BY THE FAA FSDO INSPECTOR WHO RESPONDED AND HE CONFIRMED THERE WAS NO APPARENT DAMAGE. HUMAN PERFORMANCE CONSIDERATIONS: 1) I SHOULD NOT HAVE ACCEPTED RWY 35 GIVEN THE XWIND SIT; AND REQUESTED RWY 26 INSTEAD. 2) I SHOULD HAVE REDUCED SPD EARLIER AND NOT TRIED TO BE SO ACCOMMODATING TO THE TWR CTLR; AND OTHER TFC BEHIND ME. 3) I SHOULD HAVE ELECTED TO INITIATE A GAR. NONE OF THESE ACTIONS HAPPENED BECAUSE I FELT THAT I COULD SUCCESSFULLY COMPLETE THE APCH AND LNDG. POOR DECISION MAKING ON MY PART.