Warmest March in U.S.

More than 15,000 warm temperature records were broken during March in the U.S. and the warmer-than-average conditions created an environment favorable for severe thunderstorms and tornadoes. There were 223 tornado reports during March, which averages 80 tornadoes annually. (This according to NOAA's Storm Prediction Center.)  See: U.S. Records Warmest March; More Than 15,000 Warm Temperature Records Broken.