Pool season · Arizona
Avondale Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
One bar, one year, one Avondale 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.
Each dot on the bar is one week of Avondale's typical year, colored by what the model says that week is for: gray weeks are off-season, hollow teal marks the opening window (February 8–March 1), solid teal is swim season, and hollow amber is the closing window ending November 27. The black marker is today — its position against the colors is the entire executive summary.
The Avondale pool calendar
Opening — target February 15
Target February 15; the practical window runs February 8–March 1, and the 7-day mean crosses the 61°F threshold around March 1. Cold-water starts are the cheap ones.
Closing — deadline November 27
The window opens November 17 once water leaves the algae zone; the model deadline is November 27, a week ahead of the December 24 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Avondale'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 53° | 56° | 62° | 68° | 76° | 85° | 92° | 93° | 90° | 80° | 68° | 56° |
Warmest water typically June–October (peaking near 94°F); heaters and covers shift any month up.
Email me when Avondale hits the closing window
Data: NOAA 1991–2020 climate normals via Litchfield Park (8.1 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.