There's a New Definition of 'Normal' for Weather -

"New baseline data for temperature, rain, snow and other weather events reveal how the climate has changed in the United States. The National Oceanic and Atmospheric Administration last week issued its latest “climate normals”: baseline data of temperature, rain, snow and other weather variables collected over three decades at thousands of locations across the country. Because the normals have been produced since 1930, they also say a lot about the weather over a much longer term, and across the world, as a result of emissions of heat-trapping gases over more than a century."