This is not in response to your post, hikermor, but this candle is claimed to resist wind, snow, and rain:

http://windproofcandles.wordpress.com/

However, I have not tried them. Usually, they have always been out-of-stock when I tried to purchase. (no affiliation) I wonder what's in them. The description says they're tealight candles, but the size is 8 cm or 15 cm. That should provide more perspective to the pics.