Joanna - We get the Chinooks in the early/mid spring. Luckily by that time, we're already so tired of winter, we welcome them. They come roaring off the mountains, cutting the snow off the mountains so the wind here is butt-kicking cold even though it's a warm windfront. Stings like the dickens 'cuz it always carries ice particles from the mountains and that hurts! As of the past few years, we haven't had that many huge fluctuations in temperatures where it goes from 80+deg F to -17degF (like in '06), but we did have a huge drop last week where it was 77degsF on Tues and 21degsF on Wed w/snow.