Pool season · Oklahoma
Lawton Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
Lawton'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.
Each dot on the bar is one week of Lawton's typical year, colored by what the model says that week is for: gray weeks are off-season, hollow teal marks the opening window (March 28–April 18), solid teal is swim season, and hollow amber is the closing window ending October 31. The black marker is today — its position against the colors is the entire executive summary.
The Lawton pool calendar
Opening — target April 4
Target April 4; the practical window runs March 28–April 18, and the 7-day mean crosses the 61°F threshold around April 18. Cold-water starts are the cheap ones.
Closing — deadline October 31
Hold the cover until October 22, then winterize by October 31, a week ahead of the November 7 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
This is Lawton'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 40° | 41° | 49° | 57° | 66° | 76° | 82° | 85° | 80° | 69° | 57° | 45° |
Warmest water typically July–September (peaking near 85°F); heaters and covers shift any month up.
Email me when Lawton hits the closing window
Data: NOAA 1991–2020 climate normals via Lawton (2.2 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.