Pool season · New Jersey
Paterson Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
One bar, one year, one Paterson pool. The season bar below draws everything the model knows — opening window, prime season, closing window — against today's date, with the working details one click away on the opening and closing pages.
The bar compresses Paterson's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the April 23–May 14 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends October 8. Wherever the today marker sits, the nearest color change is your next appointment.
The Paterson pool calendar
Opening — target April 30
Target April 30; the practical window runs April 23–May 14, and the 7-day mean crosses the 61°F threshold around May 14. Cold-water starts are the cheap ones.
Closing — deadline October 8
The window opens September 28 once water leaves the algae zone; the model deadline is October 8, a week ahead of the October 28 freeze normal.
Estimated water temperature by month
This is Paterson's typical-year water curve: the same EWMA model as the live widget, run on the 1991–2020 normals instead of this week's weather.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 32° | 30° | 36° | 46° | 57° | 67° | 75° | 75° | 71° | 60° | 49° | 39° |
The curve peaks near 76°F — comfortable-water months here usually involve a heater or a solar cover.
Email me when Paterson hits the closing window
Data: NOAA 1991–2020 climate normals via Little Falls (3.9 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.