The Hottest Summers in America of All Time

Source: Sean Gallup / Getty Images

2014
> Avg temp in August: 61.2°F – #11 highest on 1940-2023 record
> Size of anomaly: 0.2°F from 1991-2020 normal – #10 warmest difference

Source: NASA / Getty Images

2015
> Avg temp in August: 61.3°F – #9 highest on 1940-2023 record
> Size of anomaly: 0.3°F from 1991-2020 normal – #9 warmest difference

Source: Scott Olson / Getty Images

2016
> Avg temp in August: 61.6°F – #3 highest on 1940-2023 record
> Size of anomaly: 0.6°F from 1991-2020 normal – #3 warmest difference

Source: NASA / Getty Images

2017
> Avg temp in August: 61.4°F – #7 highest on 1940-2023 record
> Size of anomaly: 0.4°F from 1991-2020 normal – #7 warmest difference

Source: Justin Sullivan / Getty Images

2018
> Avg temp in August: 61.4°F – #8 highest on 1940-2023 record
> Size of anomaly: 0.4°F from 1991-2020 normal – #8 warmest difference