In the US, where does the sun pass overhead at noon?
Line Islands?.............
On the continental US, even the most “southern point” (classically near Key West’s buoy marker on the south side of the island) is just a bit too far north at 24.545142 N, -81.80964 W to see the sun pass directly overhead even on the summer solstice (22 June most years).
yesterday, on the fall equinox, the sun’s solar elevation angle at local apparent noon everywhere was equal to the observer’s latitude. (Plus of minus a tiny correction for the observer’s altitude of course.)
North of Hawaii main islands, French Frigate Shoals also is too far north to ever get the sun overhead, Necker Island lies right under the sun’s path on the solstice.
But Nihoa Island (and its larger brothers to the south) see the sun pass directly overhead twice a year, and have to look north (past the meridian) to see the sun on the summer solstice.