Pool season · Utah
Logan Pool Season: the Year on One Bar
Last updated: July 25, 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.
Logan, UT — 83 swim days a yearThe 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
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.
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.
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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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.
Every station tells its own story: compare this curve with Lehi's pool season and Ogden's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the Utah season index.
Logan pool season FAQ
When should I open my pool in Logan, UT?
The site model recommends opening by May 24 — about two weeks before Logan's 7-day mean temperature crosses 61°F, while the water is still too cold for algae. The step-by-step sequence is in the Logan opening guide.
When should I close my pool in Logan?
Winterize by September 25. The model holds the deadline a week ahead of Logan's NOAA 50% first-freeze date, so the plumbing is protected before the first hard night. The full sequence is in the Logan closing guide.
How long is the swim season in Logan?
Logan averages 83 days a year with normal highs of 80°F or better — about 22 days later than the Utah median. The Utah season index ranks all 12 covered cities by the same metric.
How warm does pool water get in Logan?
An unheated pool near Logan typically peaks around 73°F in high summer and bottoms out near 23°F in winter, never quite reaching the 78°F comfort line without a heater or solar cover. The month-by-month curve above shows the whole cycle; the methodology page explains the ±5°F error bars.
Email me when Logan hits the closing window
Data: NOAA 1991–2020 climate normals via Logan Radio Kvnu (0.8 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.