Hottest Octobers in Pennsylvania since 1895

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October 17, 2025
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Hottest Octobers in Pennsylvania 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 Octobers in Pennsylvania 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 1919
- Average temperature: 55.1°F
- Monthly high temperature: 64.9°F
- Monthly low temperature: 45.3°F
- Total precipitation: 4.83"

#9. October 1920
- Average temperature: 55.2°F
- Monthly high temperature: 68.1°F
- Monthly low temperature: 42.3°F
- Total precipitation: 1.7"

#8. October 1949
- Average temperature: 55.3°F
- Monthly high temperature: 67.4°F
- Monthly low temperature: 43.2°F
- Total precipitation: 2.17"

#7. October 1984
- Average temperature: 55.7°F
- Monthly high temperature: 66°F
- Monthly low temperature: 45.4°F
- Total precipitation: 2.84"

#6. October 2017
- Average temperature: 56.2°F
- Monthly high temperature: 67.2°F
- Monthly low temperature: 45.2°F
- Total precipitation: 5.09"

#4. October 1971 (tie)
- Average temperature: 56.4°F
- Monthly high temperature: 66.7°F
- Monthly low temperature: 46°F
- Total precipitation: 2.51"

#4. October 1900 (tie)
- Average temperature: 56.4°F
- Monthly high temperature: 66.7°F
- Monthly low temperature: 46°F
- Total precipitation: 3.03"

#3. October 1947
- Average temperature: 57°F
- Monthly high temperature: 71.2°F
- Monthly low temperature: 42.8°F
- Total precipitation: 1.31"

#2. October 2021
- Average temperature: 57.7°F
- Monthly high temperature: 66.8°F
- Monthly low temperature: 48.6°F
- Total precipitation: 4.61"

#1. October 2007
- Average temperature: 57.8°F
- Monthly high temperature: 68.9°F
- Monthly low temperature: 46.7°F
- Total precipitation: 3.89"

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