Pool season · Texas
Sherman Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
One bar, one year, one Sherman pool. The season bar below draws everything the model knows — opening window, prime season, closing window — against today's date, with the working details one click away on the opening and closing pages.
Reading it takes ten seconds: 52 dots, one per week. Solid teal is Sherman's swim season; the hollow teal run before it (March 18 to April 8) is when to open; the hollow amber run after is when to close, with November 5 as the deadline; gray is the covered season. Today's marker shows where you stand in that cycle right now.
The Sherman pool calendar
Opening — target March 25
Open by March 25 — a two-week head start on the April 8 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline November 5
The window opens October 26 once water leaves the algae zone; the model deadline is November 5, a week ahead of the November 19 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Sherman'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 43° | 45° | 51° | 60° | 67° | 76° | 81° | 84° | 80° | 71° | 59° | 49° |
Warmest water typically July–September (peaking near 84°F); heaters and covers shift any month up.
Email me when Sherman hits the closing window
Data: NOAA 1991–2020 climate normals via Sherman (5.3 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.