Pool season · Iowa
Davenport Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
This is the one-page view of Davenport's pool year: both model windows, the estimated water-temperature curve, and today's live position on the season bar. The detailed checklists live on the opening and closing guides; this page is the calendar you check between them.
The bar compresses Davenport'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 8. Wherever the today marker sits, the nearest color change is your next appointment.
The Davenport 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 8
The window opens September 28 once water leaves the algae zone; the model deadline is October 8, a week ahead of the October 22 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Davenport'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 24° | 24° | 33° | 45° | 57° | 67° | 74° | 74° | 70° | 60° | 46° | 33° |
The curve peaks near 74°F — comfortable-water months here usually involve a heater or a solar cover.
Email me when Davenport hits the closing window
Data: NOAA 1991–2020 climate normals via Rock Island L&d 15 (3.4 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.