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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 Octobers in Arizona 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. October 1987 (tie)
- Average temperature: 64.8°F
- Monthly high temperature: 79.1°F
- Monthly low temperature: 50.6°F
- Total precipitation: 1.54"

#10. October 1964 (tie)
- Average temperature: 64.8°F
- Monthly high temperature: 80.7°F
- Monthly low temperature: 48.9°F
- Total precipitation: 0.36"

#9. October 2014
- Average temperature: 64.9°F
- Monthly high temperature: 79.4°F
- Monthly low temperature: 50.4°F
- Total precipitation: 0.6"

#8. October 2017
- Average temperature: 65.1°F
- Monthly high temperature: 81.3°F
- Monthly low temperature: 48.8°F
- Total precipitation: 0.03"

#7. October 1952
- Average temperature: 65.7°F
- Monthly high temperature: 83.8°F
- Monthly low temperature: 47.6°F
- Total precipitation: 0"

#6. October 2016
- Average temperature: 66.1°F
- Monthly high temperature: 81°F
- Monthly low temperature: 51.2°F
- Total precipitation: 0.35"

#4. October 2020 (tie)
- Average temperature: 66.2°F
- Monthly high temperature: 83.5°F
- Monthly low temperature: 48.8°F
- Total precipitation: 0.14"

#4. October 1988 (tie)
- Average temperature: 66.2°F
- Monthly high temperature: 81°F
- Monthly low temperature: 51.3°F
- Total precipitation: 0.94"

#3. October 1950
- Average temperature: 66.7°F
- Monthly high temperature: 84°F
- Monthly low temperature: 49.5°F
- Total precipitation: 0.03"

#2. October 2003
- Average temperature: 67.3°F
- Monthly high temperature: 82.4°F
- Monthly low temperature: 52.3°F
- Total precipitation: 0.41"

#1. October 2024
- Average temperature: 67.9°F
- Monthly high temperature: 84.1°F
- Monthly low temperature: 51.8°F
- Total precipitation: 0.43"