Pool season · New York
Yonkers Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
Yonkers's whole pool calendar, condensed: when the water warms, when it cools, and where today falls between those edges. Use the opening guide and closing guide for the step-by-step work; keep this page for the dates.
The bar compresses Yonkers's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the April 24–May 15 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends October 10. Wherever the today marker sits, the nearest color change is your next appointment.
The Yonkers pool calendar
Opening — target May 1
Target May 1; the practical window runs April 24–May 15, and the 7-day mean crosses the 61°F threshold around May 15. Cold-water starts are the cheap ones.
Closing — deadline October 10
The window opens September 30 once water leaves the algae zone; the model deadline is October 10, a week ahead of the October 26 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Yonkers's own normals — the shape of a typical year, not a forecast. The widget above shows where the current year actually sits.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 33° | 32° | 37° | 47° | 57° | 66° | 73° | 75° | 70° | 61° | 50° | 41° |
The curve peaks near 75°F — comfortable-water months here usually involve a heater or a solar cover.
Email me when Yonkers hits the closing window
Data: NOAA 1991–2020 climate normals via Dobbs Ferry-ardsley (4.5 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.