Pool season · Pennsylvania
Erie Pool Season: the Year on One Bar
Last updated: July 15, 2026 · dates · water temp
One bar, one year, one Erie 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.
Reading it takes ten seconds: 52 dots, one per week. Solid teal is Erie's swim season; the hollow teal run before it (May 2 to May 23) is when to open; the hollow amber run after is when to close, with October 7 as the deadline; gray is the covered season. Today's marker shows where you stand in that cycle right now.
The Erie pool calendar
Opening — target May 9
Open by May 9 — a two-week head start on the May 23 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline October 7
The window opens September 27 once water leaves the algae zone; the model deadline is October 7, a week ahead of the November 4 freeze normal.
Estimated water temperature by month
Monthly averages of the site's water model run on Erie'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 30° | 28° | 32° | 42° | 54° | 64° | 71° | 72° | 69° | 60° | 49° | 38° |
The curve peaks near 73°F — comfortable-water months here usually involve a heater or a solar cover.
Email me when Erie hits the closing window
Data: NOAA 1991–2020 climate normals via Erie International Airport (6.2 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.