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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 Mays in Oregon 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. May 1928
- Average temperature: 54.9°F
- Monthly high temperature: 70.2°F
- Monthly low temperature: 39.5°F
- Total precipitation: 0.48"

#8. May 2001 (tie)
- Average temperature: 55°F
- Monthly high temperature: 70.1°F
- Monthly low temperature: 39.9°F
- Total precipitation: 1.28"

#8. May 1897 (tie)
- Average temperature: 55°F
- Monthly high temperature: 67.8°F
- Monthly low temperature: 42°F
- Total precipitation: 1.49"

#7. May 1934
- Average temperature: 55.1°F
- Monthly high temperature: 68.4°F
- Monthly low temperature: 41.8°F
- Total precipitation: 1.35"

#6. May 2023
- Average temperature: 55.3°F
- Monthly high temperature: 67.9°F
- Monthly low temperature: 42.6°F
- Total precipitation: 1.6"

#5. May 2018
- Average temperature: 55.4°F
- Monthly high temperature: 68.1°F
- Monthly low temperature: 42.8°F
- Total precipitation: 1.27"

#4. May 1947
- Average temperature: 55.6°F
- Monthly high temperature: 70°F
- Monthly low temperature: 41.1°F
- Total precipitation: 1.07"

#3. May 1997
- Average temperature: 55.7°F
- Monthly high temperature: 69.2°F
- Monthly low temperature: 42.2°F
- Total precipitation: 1.65"

#2. May 1958
- Average temperature: 56.4°F
- Monthly high temperature: 70.6°F
- Monthly low temperature: 42.2°F
- Total precipitation: 1.58"

#1. May 1992
- Average temperature: 57.8°F
- Monthly high temperature: 73.1°F
- Monthly low temperature: 42.4°F
- Total precipitation: 0.5"