Sump Pump Test in Maine

In Maine, local sump pump deadlines run from Apr 26 to Apr 27, with a median around Apr 27 — 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	Apr 26	Oct 27	View →	Checklist
Augusta	Apr 27	Oct 31	View →	Checklist

Back to the national Sump Pump Test guide, or see the methodology.

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