PoolWindow

Pool season · Utah

Logan Pool Season: the Year on One Bar

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

This is the one-page view of Logan'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.

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

off-season opening window swim season closing window

The bar compresses Logan's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the May 17–June 7 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends September 25. Wherever the today marker sits, the nearest color change is your next appointment.

The Logan pool calendar

May 24open by
September 25close by
8380°F+ days
73°Fwater peak

Opening — target May 24

Open by May 24 — a two-week head start on the June 7 crossing keeps startup chemistry small and beats the local service rush.

Full opening guide

Closing — deadline September 25

The window opens September 15 once water leaves the algae zone; the model deadline is September 25, a week ahead of the October 2 freeze normal.

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 Logan water runs about 23°F at its winter floor and 73°F at its summer peak.

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

Estimated water temperature by month

This is Logan'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.

Site-model seasonal water estimates for an unheated in-ground pool near Logan Radio Kvnu — ±5°F, see methodology.
JanFebMarAprMayJunJulAugSepOctNovDec
23°24°33°43°51°60°69°72°66°54°42°29°

The curve peaks near 73°F — comfortable-water months here usually involve a heater or a solar cover.

Data: NOAA 1991–2020 climate normals via Logan Radio Kvnu (0.8 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.