For most Americans, memories of childhood summers conjure images of pool parties, beach outings, long days, and warm, starry nights. Even though you can't remember your first summer, based on scientific data, it is safe to say it was most likely one of the coolest of your life, regardless of when you were born.
For millions—especially in the western third of the country—the excitement for summer vacation months has become apprehension and forethought. Recollections of wildfires, dense smoke, arid land, heat waves, and drought have replaced the imagery of fun outdoor activities.
From West Texas to the Pacific Coast, summer average temperatures have progressively risen by 2 to 4 degrees Fahrenheit in the last five decades. The summer of 2024 wasn't just hot for the United States—it was the warmest ever recorded across the planet, with an average global temperature of more than 62 degrees Fahrenheit.
That record didn't last. NOAA has since confirmed that June–August 2025 was the third-warmest such period on record globally, trailing only 2024 and 2023 — meaning the past three summers are now the three hottest ever measured. A June heat wave sent temperatures soaring to record highs in the eastern U.S. in 2025, and NOAA ranked that July as Earth's third-warmest. Extreme weather events, like the Central Texas floods in July and Phoenix's dust storm in August, also defined the season.
Now in the middle of summer 2026, the pattern shows no sign of breaking. NOAA and NCEI confirmed June 2026 as Earth's second-hottest June on record, behind only 2024. A series of heat domes brought record-breaking temperatures to the U.S. in late June and early July — Phoenix hit 113°F, Salt Lake City set an all-time record at 109°F, and more than 160 million Americans were placed under heat alerts, with dozens of confirmed heat-related deaths. Europe saw its own historic heat wave the same week, breaking hundreds of all-time station records.
Stacker consulted data from the National Oceanic and Atmospheric Administration to illustrate what summer weather was like in the U.S. from 1950 to 2025. Summer is defined as June, July, and August. Each metric is ranked relative to the entire time span, while average comparisons look at the historical average from 1901 to 2000.
What was the weather like for your very first summer? Take a look, and you may remember more than you think — or learn something new about summers before your time.
