Through yesterday we appear well on our way to one of the warmest October's in Chester County history with an average temp so far this month running over 6 degrees above normal. So does a warm October mean a "warmer" winter here in the County? Well below are 6 long term National Weather Service observer sites (Coatesville/Glenmoore/Phoenixville/Octoraro Lake, West Chester and Devault). I have ranked the top 10 warmest Octobers and compared them to the subsequent winter. Overall across all of the sites there is a 65% chance of a warmer than normal winter. But that said it is only slightly above normal at just 0.7 degrees across all 6 sites. Snowfall wise 2 seasons were above normal 3 near normal and 5 below normal snow seasons.