Pool season · Texas
Grand Prairie Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
This is the one-page view of Grand Prairie'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 Grand Prairie's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the March 10–March 31 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends November 6. Wherever the today marker sits, the nearest color change is your next appointment.
The Grand Prairie pool calendar
Opening — target March 17
Target March 17; the practical window runs March 10–March 31, and the 7-day mean crosses the 61°F threshold around March 31. Cold-water starts are the cheap ones.
Closing — deadline November 6
Hold the cover until October 31, then winterize by November 6, a week ahead of the November 13 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
This is Grand Prairie'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 46° | 47° | 54° | 62° | 69° | 77° | 83° | 85° | 82° | 73° | 61° | 51° |
Warmest water typically July–September (peaking near 85°F); heaters and covers shift any month up.
Email me when Grand Prairie hits the closing window
Data: NOAA 1991–2020 climate normals via Joe Pool Lake (4.2 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.