Sump Pump Test in North Dakota

In North Dakota, local sump pump deadlines run from May 5 to May 10, with a median around May 10 — 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

Fargo — earliest deadline in the state
Minot — latest deadline in the state
Grand Forks — near the state median

All North Dakota cities

City	Local deadline	Median first 28°F
Fargo	May 5	Oct 14	View →	Checklist
Bismarck	May 10	Oct 9	View →	Checklist
Grand Forks	May 10	Oct 12	View →	Checklist
Minot	May 10	Oct 10	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.