Does the Sun Reach the Zenith in New York State?
No. The zenith (point directly overhead, 90° altitude) is never reached anywhere in New York State.
Why?
- NY latitude range: 40°30′ N (NYC) to 45°0′ N (North Country).
- Sun's maximum declination: 23.5° N (Tropic of Cancer, June solstice).
- Maximum solar altitude at solar noon = 90° − |latitude − declination|.
- NYC (40.7° N): 90° − (40.7° − 23.5°) = 72.8°
- Plattsburgh (44.7° N): 90° − (44.7° − 23.5°) = 68.8°
Where Does the Sun Reach Zenith?
Only between the Tropic of Cancer (23.5° N) and Tropic of Capricorn (23.5° S)—the tropics. The closest US location is Hawaii (Big Island, 19° N).
Practical Effect
- No vertical shadows at solar noon in NY.
- Solar panels tilted ~latitude (40–45°) optimize annual yield.
- Summer sun is high but always south of zenith.