Pool season · Arizona
Peoria Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
Peoria'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.
Reading it takes ten seconds: 52 dots, one per week. Solid teal is Peoria's swim season; the hollow teal run before it (February 27 to March 20) is when to open; the hollow amber run after is when to close, with November 22 as the deadline; gray is the covered season. Today's marker shows where you stand in that cycle right now.
The Peoria pool calendar
Opening — target March 6
Target March 6; the practical window runs February 27–March 20, and the 7-day mean crosses the 61°F threshold around March 20. Cold-water starts are the cheap ones.
Closing — deadline November 22
Hold the cover until November 12, then winterize by November 22, a week ahead of the December 11 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
Monthly averages of the site's water model run on Peoria'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 52° | 53° | 58° | 63° | 71° | 81° | 89° | 91° | 88° | 78° | 66° | 54° |
Warmest water typically June–October (peaking near 91°F); heaters and covers shift any month up.
Email me when Peoria hits the closing window
Data: NOAA 1991–2020 climate normals via Wittmann 1se (12.9 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.