Pool season · Utah
South Jordan Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
This is the one-page view of South Jordan'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.
South Jordan, UT — 113 swim days a yearReading it takes ten seconds: 52 dots, one per week. Solid teal is South Jordan's swim season; the hollow teal run before it (April 24 to May 15) 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 South Jordan pool calendar
Opening — target May 1
Target May 1; the practical window runs April 24–May 15, and the 7-day mean crosses the 61°F threshold around May 15. Cold-water starts are the cheap ones.
Closing — deadline October 10
Hold the cover until September 30, then winterize by October 10, a week ahead of the October 22 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
This is South Jordan'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 32° | 34° | 42° | 49° | 56° | 67° | 76° | 80° | 73° | 61° | 48° | 36° |
Warmest water typically August–August (peaking near 81°F); heaters and covers shift any month up.
Every station tells its own story: compare this curve with Sandy's pool season and St. George's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the Utah season index.
South Jordan pool season FAQ
When should I open my pool in South Jordan, UT?
Target May 1. That date backs off two weeks from the day South Jordan's 7-day mean temperature reaches 61°F, so you start up in cold, algae-resistant water. Work the full checklist in the South Jordan opening guide.
When should I close my pool in South Jordan?
The closing deadline is October 10 — late enough that the water has cooled out of the algae zone, early enough to beat South Jordan's first-freeze normal by about a week. See the South Jordan closing guide for the winterizing steps.
How long is the swim season in South Jordan?
South Jordan averages 113 days a year with normal highs of 80°F or better — right on the statewide median. The Utah season index ranks all 12 covered cities by the same metric.
How warm does pool water get in South Jordan?
An unheated pool near South Jordan typically peaks around 81°F in high summer and bottoms out near 32°F in winter, spending roughly 1 month at or above the 78°F comfort line most swimmers prefer. The month-by-month curve above shows the whole cycle; the methodology page explains the ±5°F error bars.
Email me when South Jordan hits the closing window
Data: NOAA 1991–2020 climate normals via Draper-point Of Mountain (6.3 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.