Phoenix and other parts of the U.S. Southwest will likely hit or surpass 100 degrees Fahrenheit. Such historic heat is not normal in March.

It’s no secret that Americans have an independence streak. We don’t use the metric system. We insist on writing dates with the month before the day—something virtually no other country does. And we ...

While some states' coldest temperatures were recorded recently, others were documented decades ago. Hawaii remains the only state in the US yet to report a temperature below zero degrees Fahrenheit.