Arndt’s slide shows all state records set for warmth, cold and precipitation extremes since 2010. The amount of red, representing record warmth, is stunning and an irrefutable indicator of climate warming in the United States.
States have set monthly records for warmth 132 times in the past six years, as portrayed by all of the red in the left-hand column.
Blue, which represents record cold, is conspicuously absent. In 3,500 opportunities (considering that there are 50 states and that 70 months have passed), states have logged a record cold month only four times.
Washington, D.C., is not included in Arndt’s slide, but the warm weather extremes recorded since 2010 are astonishing.
In the past six years, the District has recorded its warmest year, its two warmest springs, its three hottest summers and several of its warmest months.
The increase in extreme warmth and decrease in extreme cold is precisely what is expected in a warming world.
You may also notice a fair amount of green in Arndt’s slide, which represents state records set for wettest months. An increase in heavy precipitation events is predicted with rising temperatures since warmer air can hold and release more water.
Thanks to human-generated emissions of greenhouse gases, the climate is now well into its own kind of steroid era, in which certain temperature and precipitation extremes routinely surpass old records.