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Frost dates in Whatcom County, Washington

Evergreen forest with snowy peaks behind in Mount Rainier National Park, Washington
Photo: Kingofthedead, CC BY-SA 4.0, via Wikimedia Commons

The average last spring frost in Whatcom County falls Mar 27 to Apr 24 and the average first fall frost Oct 18 to Nov 14, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 7a to 8b. Places: Acme, Bellingham, Birch Bay, Custer, Deming, Ferndale. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.

ZIPPlaceLast spring frostFirst fall frostZone
98220AcmeMar 27Nov 68a
98225BellinghamApr 1Nov 28b
98226BellinghamMar 31Oct 308a
98229BellinghamApr 1Nov 28a
98230Birch BayMar 31Nov 48b
98240CusterMar 31Nov 48b
98244KendallApr 24Oct 298a
98247DemingApr 18Oct 188a
98248FerndaleMar 31Oct 308b
98262Apr 1Nov 28b
98264LyndenApr 18Oct 188a
98266Peaceful ValleyApr 18Oct 188a
98276NooksackApr 18Oct 188a
98281Point RobertsMar 31Nov 48b
98283RockportApr 2Nov 147a
98295SumasApr 18Oct 188a

Nearby counties

Skagit County San Juan County Island County Snohomish County Jefferson County Kitsap County

All Washington counties · Download Washington frost dates (CSV)