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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 New Hampshire 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.

#9. May 2012 (tie)
- Average temperature: 57°F
- Monthly high temperature: 68°F
- Monthly low temperature: 46°F
- Total precipitation: 5.74"

#9. May 1991 (tie)
- Average temperature: 57°F
- Monthly high temperature: 70.8°F
- Monthly low temperature: 43.2°F
- Total precipitation: 3.6"

#9. May 1944 (tie)
- Average temperature: 57°F
- Monthly high temperature: 71.8°F
- Monthly low temperature: 42.1°F
- Total precipitation: 1.76"

#9. May 1904 (tie)
- Average temperature: 57°F
- Monthly high temperature: 69.9°F
- Monthly low temperature: 44°F
- Total precipitation: 3.99"

#8. May 2022
- Average temperature: 57.2°F
- Monthly high temperature: 70.4°F
- Monthly low temperature: 44°F
- Total precipitation: 2.82"

#7. May 2018
- Average temperature: 57.3°F
- Monthly high temperature: 71.3°F
- Monthly low temperature: 43.2°F
- Total precipitation: 1.65"

#5. May 2024 (tie)
- Average temperature: 57.4°F
- Monthly high temperature: 68.4°F
- Monthly low temperature: 46.4°F
- Total precipitation: 3.37"

#5. May 1918 (tie)
- Average temperature: 57.4°F
- Monthly high temperature: 70.6°F
- Monthly low temperature: 44.2°F
- Total precipitation: 2.88"

#4. May 1998
- Average temperature: 57.6°F
- Monthly high temperature: 70.6°F
- Monthly low temperature: 44.7°F
- Total precipitation: 3.35"

#3. May 1975
- Average temperature: 57.9°F
- Monthly high temperature: 71.8°F
- Monthly low temperature: 44°F
- Total precipitation: 1.77"

#2. May 1911
- Average temperature: 58.7°F
- Monthly high temperature: 73.2°F
- Monthly low temperature: 44.2°F
- Total precipitation: 1.28"

#1. May 2015
- Average temperature: 58.9°F
- Monthly high temperature: 73.5°F
- Monthly low temperature: 44.3°F
- Total precipitation: 1.95"