Sprinkler Winterization in Maine

In Maine, local sprinklers deadlines run from Oct 17 to Oct 21, with a median around Oct 21 — a spread of weeks that a single statewide date would miss. Find your city below; each links to local freeze odds, a live 10-day outlook, and a checklist.

Jump to a city

Notable cities

All Maine cities

City	Local deadline	Median first 28°F
Portland	Oct 17	Oct 27	View →	Checklist
Augusta	Oct 21	Oct 31	View →	Checklist

Back to the national Sprinkler Winterization guide, or see the methodology.

Data: NOAA NCEI 1991–2020 U.S. Climate Normals; live outlook by Open-Meteo. Last updated: July 11, 2026.