Pool season · California
Jurupa Valley Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
One bar, one year, one Jurupa Valley 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.
Each dot on the bar is one week of Jurupa Valley's typical year, colored by what the model says that week is for: gray weeks are off-season, hollow teal marks the opening window (March 10–March 31), solid teal is swim season, and hollow amber is the closing window ending November 25. The black marker is today — its position against the colors is the entire executive summary.
The Jurupa Valley pool calendar
Opening — target March 17
Open by March 17 — a two-week head start on the March 31 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline November 25
The window opens November 15 once water leaves the algae zone; the model deadline is November 25, a week ahead of the December 30 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Jurupa Valley'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 55° | 56° | 58° | 61° | 66° | 70° | 76° | 80° | 79° | 73° | 65° | 57° |
Warmest water typically August–September (peaking near 80°F); heaters and covers shift any month up.
Email me when Jurupa Valley hits the closing window
Data: NOAA 1991–2020 climate normals via Riverside Municipal Airport (3.9 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.