Frost dates in Howard County, Maryland
The average last spring frost in Howard County falls Apr 2 to Apr 14 and the average first fall frost Oct 29 to Nov 9, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 7a to 7b. Places: Columbia, Eldersburg, Elkridge, Ellicott City, Fulton, Highland. 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 |
|---|---|---|---|---|
| 20701 | Jessup | Apr 10 | Oct 31 | 7b |
| 20723 | North Laurel | Apr 5 | Nov 9 | 7b |
| 20759 | Fulton | Apr 5 | Nov 9 | 7b |
| 20763 | Savage | Apr 5 | Nov 9 | 7b |
| 20777 | Highland | Apr 5 | Nov 9 | 7b |
| 20794 | Jessup | Apr 10 | Oct 31 | 7b |
| 21029 | Columbia | Apr 5 | Nov 9 | 7b |
| 21036 | Apr 5 | Nov 9 | 7b | |
| 21042 | Ellicott City | Apr 5 | Nov 9 | 7b |
| 21043 | Ellicott City | Apr 10 | Oct 31 | 7b |
| 21044 | Columbia | Apr 5 | Nov 9 | 7b |
| 21045 | Columbia | Apr 10 | Oct 31 | 7b |
| 21046 | Columbia | Apr 5 | Nov 9 | 7b |
| 21075 | Elkridge | Apr 10 | Oct 31 | 7b |
| 21104 | Eldersburg | Apr 2 | Nov 7 | 7b |
| 21723 | Apr 14 | Oct 29 | 7a | |
| 21737 | Apr 14 | Oct 29 | 7b | |
| 21738 | Apr 14 | Oct 29 | 7b | |
| 21794 | Apr 14 | Oct 29 | 7b | |
| 21797 | Lisbon | Apr 14 | Oct 29 | 7b |
Nearby counties
Montgomery County Baltimore city Baltimore County Prince George's County Anne Arundel County Carroll County
All Maryland counties · Download Maryland frost dates (CSV)
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