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Frost dates in Bowman County, North Dakota

Prairie and badlands along the Little Missouri River in Theodore Roosevelt National Park, North Dakota
Photo: Acroterion, CC BY-SA 4.0, via Wikimedia Commons

The average last spring frost in Bowman County falls May 16 and the average first fall frost Sep 25 to Sep 26, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4a to 4b. Places: Bowman, Gascoyne, Marmarth, Rhame. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.

ZIPPlaceLast spring frostFirst fall frostZone
58623BowmanMay 16Sep 254b
58643MarmarthMay 16Sep 264a
58651RhameMay 16Sep 254b
58653GascoyneMay 16Sep 254b

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All North Dakota counties · Download North Dakota frost dates (CSV)