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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 Marches 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.

#8. March 2025 (tie)
- Average temperature: 42.6°F
- Monthly high temperature: 55°F
- Monthly low temperature: 30.1°F
- Total precipitation: 2.22"

#8. March 2000 (tie)
- Average temperature: 42.6°F
- Monthly high temperature: 53.9°F
- Monthly low temperature: 31.2°F
- Total precipitation: 3.52"

#8. March 1910 (tie)
- Average temperature: 42.6°F
- Monthly high temperature: 55.2°F
- Monthly low temperature: 29.9°F
- Total precipitation: 0.62"

#7. March 1973
- Average temperature: 42.8°F
- Monthly high temperature: 52.8°F
- Monthly low temperature: 32.9°F
- Total precipitation: 3.03"

#6. March 2016
- Average temperature: 43.3°F
- Monthly high temperature: 55°F
- Monthly low temperature: 31.6°F
- Total precipitation: 1.96"

#5. March 1903
- Average temperature: 44.5°F
- Monthly high temperature: 53.9°F
- Monthly low temperature: 35.1°F
- Total precipitation: 4.46"

#4. March 1946
- Average temperature: 45.2°F
- Monthly high temperature: 57.9°F
- Monthly low temperature: 32.6°F
- Total precipitation: 3.18"

#3. March 1921
- Average temperature: 45.4°F
- Monthly high temperature: 57.2°F
- Monthly low temperature: 33.7°F
- Total precipitation: 3.33"

#2. March 1945
- Average temperature: 46.2°F
- Monthly high temperature: 58.8°F
- Monthly low temperature: 33.6°F
- Total precipitation: 4.05"

#1. March 2012
- Average temperature: 47.7°F
- Monthly high temperature: 59.7°F
- Monthly low temperature: 35.7°F
- Total precipitation: 2.89"