Pool season · Texas
Denton Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
This is the one-page view of Denton'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 Denton's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the March 12–April 2 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends November 9. Wherever the today marker sits, the nearest color change is your next appointment.
The Denton pool calendar
Opening — target March 19
Open by March 19 — a two-week head start on the April 2 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline November 9
The window opens October 30 once water leaves the algae zone; the model deadline is November 9, a week ahead of the November 20 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Denton'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 45° | 46° | 52° | 61° | 69° | 78° | 84° | 86° | 82° | 72° | 60° | 50° |
Warmest water typically June–September (peaking near 86°F); heaters and covers shift any month up.
Email me when Denton hits the closing window
Data: NOAA 1991–2020 climate normals via Denton 2 SE (2.5 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.