Pool season · Tennessee
Murfreesboro Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
Murfreesboro's whole pool calendar, condensed: when the water warms, when it cools, and where today falls between those edges. Use the opening guide and closing guide for the step-by-step work; keep this page for the dates.
Reading it takes ten seconds: 52 dots, one per week. Solid teal is Murfreesboro's swim season; the hollow teal run before it (April 4 to April 25) is when to open; the hollow amber run after is when to close, with October 20 as the deadline; gray is the covered season. Today's marker shows where you stand in that cycle right now.
The Murfreesboro pool calendar
Opening — target April 11
Target April 11; the practical window runs April 4–April 25, and the 7-day mean crosses the 61°F threshold around April 25. Cold-water starts are the cheap ones.
Closing — deadline October 20
Hold the cover until October 13, then winterize by October 20, a week ahead of the October 27 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
This is Murfreesboro'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 39° | 39° | 46° | 54° | 63° | 72° | 78° | 79° | 75° | 66° | 54° | 44° |
Warmest water typically July–August (peaking near 79°F); heaters and covers shift any month up.
Email me when Murfreesboro hits the closing window
Data: NOAA 1991–2020 climate normals via Murfreesboro 5 N (5.4 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.