The EPA claims that spring snow cover is declining, and fall/winter snow cover is remaining steady. They say it is evidence of global warming.
Climate Change Indicators: Snow Cover This indicator measures the amount of land in North America that is covered by snow
Decreases in snow cover have largely occurred in spring and summer, whereas fall and winter snow cover have remained fairly steady
Since CO2 hit 350 PPM 30 years ago, April 1st snow cover has increased 10%.
Fall and winter snow cover have also increased.