First dates: When does the climate record say you can expect the season's first snow?

First dates: When does the climate record say you can expect the season's first snow? | NOAA Climate.gov:

Near the anniversary of Beyond the Data's most popular post, we've given the map an interactive upgrade. 

Click (on main link) to zoom in on an area of interest and drill down to see the date by which the chances for the first snow of the season at your location rise to at least 50%. 

Will this year's first snow come earlier or later than the historic "first date" of snow? 

See what the climate record has to say and keep up with your local forecast.

This map shows the historic date by which there’s a 50% chance of at least 0.1” of snow on the ground, based on each location’s snowfall history from 1981-2010, based on the latest U.S. Climate Normals from NOAA's National Centers for Environmental Information. 

Double click on the map to zoom in, or use controls at upper left. Single click for specific location information. 

To improve map performance and loading times, station pop-ups appear at zoom levels of 2x or more.