Frost dates in Baltimore city, Maryland

Marsh islands in Sinepuxent Bay near Assateague Island, Maryland — Photo: Acroterion, CC BY-SA 4.0, via Wikimedia Commons

The average last spring frost in Baltimore city falls Mar 24 to Apr 2 and the average first fall frost Nov 7 to Nov 21, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 7b to 8a. Places: Baltimore. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.

ZIP	Place	Last spring frost	First fall frost	Zone
21201	Baltimore	Mar 24	Nov 21	8a
21202	Baltimore	Mar 24	Nov 21	8a
21205	Baltimore	Mar 24	Nov 21	8a
21206	Baltimore	Mar 24	Nov 21	7b
21210	Baltimore	Apr 2	Nov 7	7b
21211	Baltimore	Apr 2	Nov 7	7b
21212	Baltimore	Apr 2	Nov 7	7b
21213	Baltimore	Mar 24	Nov 21	8a
21214	Baltimore	Apr 2	Nov 7	7b
21215	Baltimore	Apr 2	Nov 7	7b
21216	Baltimore	Apr 2	Nov 7	7b
21217	Baltimore	Mar 24	Nov 21	7b
21218	Baltimore	Apr 2	Nov 7	7b
21223	Baltimore	Mar 24	Nov 21	7b
21224	Baltimore	Mar 24	Nov 21	8a
21226	Baltimore	Mar 24	Nov 21	8a
21229	Baltimore	Mar 24	Nov 21	7b
21230	Baltimore	Mar 24	Nov 21	8a
21231	Baltimore	Mar 24	Nov 21	8a
21233	Baltimore	Mar 24	Nov 21	8a
21239	Baltimore	Apr 2	Nov 7	7b
21251	Baltimore	Apr 2	Nov 7	7b
21287	Baltimore	Mar 24	Nov 21	8a

Nearby counties

Baltimore County Howard County Anne Arundel County Harford County Carroll County Montgomery County

All Maryland counties · Download Maryland frost dates (CSV)

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