Pool season · Arkansas
Jonesboro Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
This is the one-page view of Jonesboro'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.
Reading it takes ten seconds: 52 dots, one per week. Solid teal is Jonesboro's swim season; the hollow teal run before it (March 27 to April 17) is when to open; the hollow amber run after is when to close, with October 28 as the deadline; gray is the covered season. Today's marker shows where you stand in that cycle right now.
The Jonesboro pool calendar
Opening — target April 3
Target April 3; the practical window runs March 27–April 17, and the 7-day mean crosses the 61°F threshold around April 17. Cold-water starts are the cheap ones.
Closing — deadline October 28
Hold the cover until October 18, then winterize by October 28, a week ahead of the November 9 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
Monthly averages of the site's water model run on Jonesboro'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 39° | 40° | 47° | 56° | 66° | 76° | 81° | 81° | 77° | 68° | 56° | 45° |
Warmest water typically July–August (peaking near 82°F); heaters and covers shift any month up.
Email me when Jonesboro hits the closing window
Data: NOAA 1991–2020 climate normals via Jonesboro Municipal Airport (1.9 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.