Pool season · Louisiana
Hammond Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
One bar, one year, one Hammond pool. The season bar below draws everything the model knows — opening window, prime season, closing window — against today's date, with the working details one click away on the opening and closing pages.
The bar compresses Hammond's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the February 28–March 21 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends November 12. Wherever the today marker sits, the nearest color change is your next appointment.
The Hammond pool calendar
Opening — target March 7
Open by March 7 — a two-week head start on the March 21 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline November 12
Hold the cover until November 4, then winterize by November 12, a week ahead of the November 19 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
This is Hammond'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 50° | 51° | 57° | 63° | 70° | 77° | 81° | 82° | 80° | 73° | 62° | 55° |
Warmest water typically July–September (peaking near 82°F); heaters and covers shift any month up.
Email me when Hammond hits the closing window
Data: NOAA 1991–2020 climate normals via Hammond 5 E (4.7 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.