PoolWindow

Pool season · Pennsylvania

Scranton Pool Season: the Year on One Bar

Last updated: July 15, 2026 · dates · water temp

This is the one-page view of Scranton'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.

J F M A M J J A S O N D today (build date)

off-season opening window swim season closing window

Each dot on the bar is one week of Scranton'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 25–May 16), solid teal is swim season, and hollow amber is the closing window ending October 5. The black marker is today — its position against the colors is the entire executive summary.

The Scranton pool calendar

May 2open by
October 5close by
7780°F+ days
74°Fwater peak

Opening — target May 2

Target May 2; the practical window runs April 25–May 16, and the 7-day mean crosses the 61°F threshold around May 16. Cold-water starts are the cheap ones.

Full opening guide

Closing — deadline October 5

Hold the cover until September 25, then winterize by October 5, a week ahead of the October 20 freeze normal. Late and cold beats early and warm.

Full closing guide

Where the water sits today

SEASONAL VIEW

Estimated unheated pool water temp (site model, ±5°F). The live estimate loads in your browser from Open-Meteo air temperatures; in a typical year Scranton water runs about 28°F at its winter floor and 74°F at its summer peak.

40 45 50 55 60 65 70 75 80 85 58 open 65 algae

Estimated water temperature by month

This is Scranton'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.

Site-model seasonal water estimates for an unheated in-ground pool near Wilkes-barre International Airport — ±5°F, see methodology.
JanFebMarAprMayJunJulAugSepOctNovDec
30°28°34°45°57°65°72°73°69°59°48°38°

The curve peaks near 74°F — comfortable-water months here usually involve a heater or a solar cover.

Data: NOAA 1991–2020 climate normals via Wilkes-barre International Airport (5.8 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.