Pool season · Colorado
Loveland Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
This is the one-page view of Loveland'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.
The bar compresses Loveland's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the May 10–May 31 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends September 24. Wherever the today marker sits, the nearest color change is your next appointment.
The Loveland pool calendar
Opening — target May 17
Open by May 17 — a two-week head start on the May 31 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline September 24
Hold the cover until September 17, then winterize by September 24, a week ahead of the October 1 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
Monthly averages of the site's water model run on Loveland's own normals — the shape of a typical year, not a forecast. The widget above shows where the current year actually sits.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 28° | 29° | 35° | 44° | 51° | 62° | 70° | 71° | 66° | 55° | 42° | 32° |
The curve peaks near 72°F — comfortable-water months here usually involve a heater or a solar cover.
Email me when Loveland hits the closing window
Data: NOAA 1991–2020 climate normals via Loveland 2n (1.7 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.