Pool season · West Virginia
Morgantown Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
This is the one-page view of Morgantown'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.
Morgantown, WV — 88 swim days a yearEach dot on the bar is one week of Morgantown's typical year, colored by what the model says that week is for: gray weeks are off-season, hollow teal marks the opening window (April 19–May 10), solid teal is swim season, and hollow amber is the closing window ending October 10. The black marker is today — its position against the colors is the entire executive summary.
The Morgantown pool calendar
Opening — target April 26
Target April 26; the practical window runs April 19–May 10, and the 7-day mean crosses the 61°F threshold around May 10. Cold-water starts are the cheap ones.
Closing — deadline October 10
Hold the cover until September 30, then winterize by October 10, a week ahead of the October 24 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
This is Morgantown'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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 34° | 33° | 39° | 49° | 59° | 67° | 73° | 74° | 70° | 61° | 50° | 40° |
The curve peaks near 74°F — comfortable-water months here usually involve a heater or a solar cover.
Every station tells its own story: compare this curve with Huntington's pool season and Charleston's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the West Virginia season index.
Morgantown pool season FAQ
When should I open my pool in Morgantown, WV?
Open by April 26 — the model places Morgantown's 61°F crossing about two weeks later, and every warm day you wait pushes the water toward the 65°F algae zone. The Morgantown opening guide has the 12-step sequence.
When should I close my pool in Morgantown?
Close by October 10: cool water keeps its winter chemistry, but freeze damage is the hard stop. The Morgantown closing guide sequences the work backward from that date.
How long is the swim season in Morgantown?
Morgantown averages 88 days a year with normal highs of 80°F or better — about 10 days later than the West Virginia median. The West Virginia season index ranks all 3 covered cities by the same metric.
How warm does pool water get in Morgantown?
An unheated pool near Morgantown typically peaks around 74°F in high summer and bottoms out near 32°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 Morgantown hits the closing window
Data: NOAA 1991–2020 climate normals via Morgantown Hart Field (1.6 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.