Climate change is driving rising temperatures and more record heat. The Earth’s temperature has climbed each decade since 1880 by about .14 degrees Fahrenheit, or roughly 2 degrees Fahrenheit total.
Stacker compiled a ranking of the hottest Mays in California since 1895 using data from the National Centers for Environmental Information. Rankings are based on the highest average temperature in each month. For each of the hottest months listed below, we’ve included the average state temperature, state-wide highs and lows for the month, and the total precipitation.
#9. May 2020 (tie) – Average temperature: 64.6°F – Monthly high temperature: 78.4°F – Monthly low temperature: 50.9°F – Total precipitation: 1.2″
#9. May 2014 (tie) – Average temperature: 64.6°F – Monthly high temperature: 78.8°F – Monthly low temperature: 50.5°F – Total precipitation: 0.35″
#9. May 2006 (tie) – Average temperature: 64.6°F – Monthly high temperature: 78.5°F – Monthly low temperature: 50.7°F – Total precipitation: 0.73″
#9. May 1940 (tie) – Average temperature: 64.6°F – Monthly high temperature: 78.8°F – Monthly low temperature: 50.4°F – Total precipitation: 0.68″
#8. May 1924 – Average temperature: 64.9°F – Monthly high temperature: 80.2°F – Monthly low temperature: 49.5°F – Total precipitation: 0.07″
#7. May 1947 – Average temperature: 65°F – Monthly high temperature: 79.5°F – Monthly low temperature: 50.5°F – Total precipitation: 0.48″
#6. May 1984 – Average temperature: 65.3°F – Monthly high temperature: 79.8°F – Monthly low temperature: 50.7°F – Total precipitation: 0.39″
#5. May 1931 – Average temperature: 65.5°F – Monthly high temperature: 79.8°F – Monthly low temperature: 51.2°F – Total precipitation: 0.96″
#4. May 2009 – Average temperature: 66.7°F – Monthly high temperature: 80.6°F – Monthly low temperature: 52.7°F – Total precipitation: 1.24″
#3. May 1992 – Average temperature: 67°F – Monthly high temperature: 80.9°F – Monthly low temperature: 53°F – Total precipitation: 0.23″
#2. May 1997 – Average temperature: 67.6°F – Monthly high temperature: 81.8°F – Monthly low temperature: 53.3°F – Total precipitation: 0.38″
#1. May 2001 – Average temperature: 68.6°F – Monthly high temperature: 83.8°F – Monthly low temperature: 53.3°F – Total precipitation: 0.15″