The Golden State can’t seem to catch a weather break. Drought and horrific wildfires have again given way to catastrophic storms and flooding. Progressives often exploit natural disasters to campaign against fossil fuels, but Californians would be better off if their politicians spent more money preparing for bad weather than fighting climate change that they can’t do anything about.

The last couple of months in California have been among the coldest and wettest on record. For the first time in at least 132 years, the temperature...