Pool season · Texas
Frisco Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
This is the one-page view of Frisco'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 Frisco's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the March 5–March 26 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 Frisco pool calendar
Opening — target March 12
Open by March 12 — a two-week head start on the March 26 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 21 freeze normal.
Estimated water temperature by month
This is Frisco'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° | 48° | 54° | 62° | 69° | 78° | 83° | 86° | 81° | 72° | 61° | 51° |
Warmest water typically June–September (peaking near 86°F); heaters and covers shift any month up.
Email me when Frisco hits the closing window
Data: NOAA 1991–2020 climate normals via Richardson (11.9 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.