Hottest Decembers in Washington since 1895
In 2022, the continental United States experienced its , according to data from the National Oceanic and Atmospheric Administration, while 20 states saw one of their in the same month. The year prior, July marked the .
Climate change is driving rising temperatures and more record heat. The has climbed each decade since 1880 by about .14 degrees Fahrenheit, or roughly 2 degrees Fahrenheit total.
compiled a ranking of the hottest Decembers in Washington since 1895 using data from the . 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.
#10. December 2024
- Average temperature: 35.1掳F
- Monthly high temperature: 39.7掳F
- Monthly low temperature: 30.4掳F
- Total precipitation: 7.8"
#9. December 1917
- Average temperature: 35.3掳F
- Monthly high temperature: 41掳F
- Monthly low temperature: 29.7掳F
- Total precipitation: 14.63"
#7. December 1979 (tie)
- Average temperature: 35.4掳F
- Monthly high temperature: 40.7掳F
- Monthly low temperature: 30.1掳F
- Total precipitation: 9.38"
#7. December 1966 (tie)
- Average temperature: 35.4掳F
- Monthly high temperature: 40.1掳F
- Monthly low temperature: 30.7掳F
- Total precipitation: 8.51"
#6. December 1950
- Average temperature: 35.6掳F
- Monthly high temperature: 40.2掳F
- Monthly low temperature: 30.9掳F
- Total precipitation: 7.22"
#5. December 1933
- Average temperature: 35.8掳F
- Monthly high temperature: 41掳F
- Monthly low temperature: 30.7掳F
- Total precipitation: 16.61"
#4. December 1925
- Average temperature: 36掳F
- Monthly high temperature: 40.3掳F
- Monthly low temperature: 31.7掳F
- Total precipitation: 6.2"
#3. December 2023
- Average temperature: 36.2掳F
- Monthly high temperature: 40.8掳F
- Monthly low temperature: 31.5掳F
- Total precipitation: 7.34"
#1. December 1939 (tie)
- Average temperature: 36.7掳F
- Monthly high temperature: 42.4掳F
- Monthly low temperature: 31掳F
- Total precipitation: 8.85"
#1. December 1900 (tie)
- Average temperature: 36.7掳F
- Monthly high temperature: 41掳F
- Monthly low temperature: 32.3掳F
- Total precipitation: 7.64"
