Pool season · Utah
Sandy Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
One bar, one year, one Sandy 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 Sandy's swim season; the hollow teal run before it (April 30 to May 21) is when to open; the hollow amber run after is when to close, with October 10 as the deadline; gray is the covered season. Today's marker shows where you stand in that cycle right now.
The Sandy pool calendar
Opening — target May 7
Open by May 7 — a two-week head start on the May 21 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline October 10
The window opens September 30 once water leaves the algae zone; the model deadline is October 10, a week ahead of the October 22 freeze normal.
Estimated water temperature by month
This is Sandy'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 30° | 32° | 40° | 47° | 55° | 65° | 76° | 79° | 73° | 61° | 47° | 34° |
Warmest water typically August–August (peaking near 80°F); heaters and covers shift any month up.
Email me when Sandy hits the closing window
Data: NOAA 1991–2020 climate normals via Cottonwood Weir (4.8 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.