I don't mind a moderate wind too much and have flown my trainer in up to 15 mph winds but it is the direction of the wind that can hurt.
Sunday I had to abandon flying after my first flight of the day. The wind was blowing about 10 mph at about a 30 degree angle to the runway. I tried to take off and almost lost it when my instructor took over, we got it airborn and I flew several laps around the field, my instructor then landed so I could try another take off, he nearly hit the ground with a wing coming in. I tried one more take off and aborted. That plane was just too hard to handle with the cross wind (it wanted to weathervane)
I have flown in stronger winds but they where strait down the runway and not near as much problem. (the taxi out was a different story )