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Saturday marked the first full day of summer 2025 in NYC after the summer solstice occurred at 10:41 p.m. Friday.

The first day of summer is marked by the summer solstice, or the longest day of the year. Here's what to know about summer 2025.

Is the summer solstice the first day of summer? Yes, astronomers recognize the summer solstice as the official first day of summer in the northern hemisphere, according to NASA.

The first day of summer will feel hot with highs feeling like the triple digits.

Summer solstice 2025: Friday marks 1st day of summer, with 15 hours of sunlight This year in the Chicago area, the longest day of the year comes with extreme heat warnings, watches and advisories ...

Summer solstice 2025: What to know as 1st day of summer arrives The event is the longest stretch of daylight in the year.

Summer officially begins in the Northern Hemisphere on June 20 with the summer solstice, the day with the greatest amount of possible daylight and the shortest night.

The first day of summer changes annually, arriving on June 20, 21 or 22.

To celebrate the longest day of the year, you can score some free ice cream, slushies, and more. Find everything in this list of the First Day Of Summer Freebies & Deals.