Pool season · Texas
Richardson Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
Richardson'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.
The bar compresses Richardson'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 Richardson pool calendar
Opening — target March 12
Target March 12; the practical window runs March 5–March 26, and the 7-day mean crosses the 61°F threshold around March 26. Cold-water starts are the cheap ones.
Closing — deadline November 9
Hold the cover until October 30, then winterize by November 9, a week ahead of the November 21 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
This is Richardson'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 Richardson hits the closing window
Data: NOAA 1991–2020 climate normals via Richardson (2.6 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.