If you'e in an open area the wind could be blowing from any direction at virtually any speed. It all depends on the moment in time that you're at that specific spot. You may believe that statistics can help you, and they might, but it's really about karma. For headwinds you can hunker-down and wait OR gear-down and ride. It's just the wind, part of nature, part of touring, don't let it get in your head.