Snow on Halloween isn't unheard of, but it is certainly not common either. Over the past 20 years, there has only been around a trace of snow or rain recorded on Oct. 31.
Our average first snowfall of the season usually occurs on November 10, but last year we didn't' see our first measurable snowfall until December 3.
So what constitutes the first snowfall? By NWS standards it's a tenth of an inch or more. With only a few flurries flying across the area on this Halloween and no accumulation across the metro area, we have still not experienced our first official snowfall of the season.
The next chance for any decent precipitation is Friday night, but it's a few sprinkles or showers. It won't be cold enough to snow this time around.