Pool season · North Carolina
Greensboro Pool Season: the Year on One Bar
Last updated: July 25, 2026 · dates · water temp
One bar, one year, one Greensboro 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.
Greensboro, NC — 121 swim days a yearThe bar compresses Greensboro's whole pool year into one lane rope: gray floats for the off-season, hollow teal for the March 30–April 20 opening window, solid teal for swim weeks, hollow amber for the closing stretch that ends October 24. Wherever the today marker sits, the nearest color change is your next appointment.
The Greensboro pool calendar
Opening — target April 6
Open by April 6 — a two-week head start on the April 20 crossing keeps startup chemistry small and beats the local service rush.
Closing — deadline October 24
Hold the cover until October 14, then winterize by October 24, a week ahead of the November 4 freeze normal. Late and cold beats early and warm.
Estimated water temperature by month
This is Greensboro'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° | 47° | 56° | 65° | 72° | 78° | 79° | 74° | 66° | 54° | 46° |
Warmest water typically July–August (peaking near 80°F); heaters and covers shift any month up.
Every station tells its own story: compare this curve with Gastonia's pool season and Greenville's — neighboring normals stations can shift the windows by a week or more. The full ranking lives on the North Carolina season index.
Greensboro pool season FAQ
When should I open my pool in Greensboro, NC?
The site model recommends opening by April 6 — about two weeks before Greensboro's 7-day mean temperature crosses 61°F, while the water is still too cold for algae. The step-by-step sequence is in the Greensboro opening guide.
When should I close my pool in Greensboro?
Winterize by October 24. The model holds the deadline a week ahead of Greensboro's NOAA 50% first-freeze date, so the plumbing is protected before the first hard night. The full sequence is in the Greensboro closing guide.
How long is the swim season in Greensboro?
Greensboro averages 121 days a year with normal highs of 80°F or better — right on the statewide median. The North Carolina season index ranks all 17 covered cities by the same metric.
How warm does pool water get in Greensboro?
An unheated pool near Greensboro typically peaks around 80°F in high summer and bottoms out near 40°F in winter, spending roughly 1 month at or above the 78°F comfort line most swimmers prefer. The month-by-month curve above shows the whole cycle; the methodology page explains the ±5°F error bars.
Email me when Greensboro hits the closing window
Data: NOAA 1991–2020 climate normals via Greensboro Wtp (1.6 mi); live outlook by Open-Meteo. Attribution: sources · assumptions: methodology.