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Frost dates and growing zones in North Dakota

1 town pages so far. Zones from the 2023 USDA Plant Hardiness Zone Map, frost dates from NOAA 1991-2020 normals at the nearest weather station.

Towns covered so far in North Dakota fall in USDA zones 4a. Median dates mean frost comes later (spring) or earlier (fall) in half of years.

Towns

Town	Zone	Median last frost	Median first frost
Bismarck	4a	May 14	Sep 27