Winter?

What happened to winter?  We're supposed to have a 64 degree day this Friday and it's February!  I'm fine with the comfortable temperatures, it's fantastic for yard work and chicken coop building.  One minor problem with the nice temperatures though... what happens if we get another freeze?  It's still possible since the winter months aren't quite over, but with this warm weather most of our plants and trees have started budding.  Even our chives and green onions have started to come up.  Will having another freeze stunt our crops and orchard trees?

Chives and green onions from last summer