According to the pilot, as he approached his destination airport, he radioed the Unicom and requested airport advisories. He was advised that traffic was landing on runway 24, and the wind was reported at 310 degrees at 9 knots. During his first approach he believed he was too high and executed a go-around. He re-entered the pattern from the northwest for landing. As he descended down to the "numbers" a wind shear struck the airplane and the stall alarm sounded along with a drop in airspeed. He made an attempt to go-around, but was to "low and slow". He was unable maintain altitude, landed hard and veered off of the left side of the runway. The airplane struck some small trees and the right wing was torn from the fuselage. The reported wind at the accident airport near the accident time was from 290 degrees at 10 knots, gusting to 18 knots.