PoolWindow

Pool season · California

Clovis Pool Season: the Year on One Bar

Last updated: July 15, 2026 · dates · water temp

Clovis'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.

J F M A M J J A S O N D today (build date)

off-season opening window swim season closing window

Reading it takes ten seconds: 52 dots, one per week. Solid teal is Clovis's swim season; the hollow teal run before it (March 21 to April 11) is when to open; the hollow amber run after is when to close, with November 9 as the deadline; gray is the covered season. Today's marker shows where you stand in that cycle right now.

The Clovis pool calendar

March 28open by
November 9close by
16080°F+ days
84°Fwater peak

Opening — target March 28

Target March 28; the practical window runs March 21–April 11, and the 7-day mean crosses the 61°F threshold around April 11. Cold-water starts are the cheap ones.

Full opening guide

Closing — deadline November 9

Hold the cover until October 30, then winterize by November 9, a week ahead of the December 14 freeze normal. Late and cold beats early and warm.

Full closing guide

Where the water sits today

SEASONAL VIEW

Estimated unheated pool water temp (site model, ±5°F). The live estimate loads in your browser from Open-Meteo air temperatures; in a typical year Clovis water runs about 47°F at its winter floor and 84°F at its summer peak.

40 45 50 55 60 65 70 75 80 85 58 open 65 algae

Estimated water temperature by month

Monthly averages of the site's water model run on Clovis's own normals — the shape of a typical year, not a forecast. The widget above shows where the current year actually sits.

Site-model seasonal water estimates for an unheated in-ground pool near Fresno Yosemite International Airport — ±5°F, see methodology.
JanFebMarAprMayJunJulAugSepOctNovDec
47°50°55°60°67°74°82°83°80°72°60°50°

Warmest water typically July–September (peaking near 84°F); heaters and covers shift any month up.

Data: NOAA 1991–2020 climate normals via Fresno Yosemite International Airport (3.9 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.