Frost dates in Frederick County, Maryland
The average last spring frost in Frederick County falls Apr 2 to Apr 26 and the average first fall frost Oct 18 to Nov 6, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 7a to 7b. Places: Adamstown, Ballenger Creek, Braddock Heights, Brunswick, Buckeystown, Burkittsville. 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 |
|---|---|---|---|---|
| 21701 | Frederick | Apr 2 | Nov 6 | 7a |
| 21702 | Frederick | Apr 2 | Nov 6 | 7a |
| 21703 | Ballenger Creek | Apr 2 | Nov 6 | 7b |
| 21704 | Urbana | Apr 2 | Nov 6 | 7a |
| 21705 | Frederick | Apr 2 | Nov 6 | 7b |
| 21710 | Adamstown | Apr 2 | Nov 6 | 7b |
| 21714 | Braddock Heights | Apr 2 | Nov 6 | 7b |
| 21716 | Brunswick | Apr 26 | Oct 18 | 7a |
| 21717 | Buckeystown | Apr 2 | Nov 6 | 7b |
| 21718 | Burkittsville | Apr 26 | Oct 18 | 7a |
| 21727 | Emmitsburg | Apr 22 | Oct 20 | 7a |
| 21754 | Urbana | Apr 14 | Oct 29 | 7a |
| 21755 | Jefferson | Apr 2 | Nov 6 | 7b |
| 21758 | Garretts Mill | Apr 26 | Oct 18 | 7a |
| 21762 | Libertytown | Apr 2 | Nov 6 | 7a |
| 21769 | Middletown | Apr 2 | Nov 6 | 7a |
| 21770 | Green Valley | Apr 14 | Oct 29 | 7a |
| 21771 | Green Valley | Apr 14 | Oct 29 | 7a |
| 21773 | Myersville | Apr 14 | Oct 30 | 7a |
| 21774 | Linganore | Apr 2 | Nov 6 | 7a |
| 21777 | Point of Rocks | Apr 2 | Nov 6 | 7a |
| 21778 | Apr 22 | Oct 20 | 7a | |
| 21780 | Sabillasville | Apr 14 | Oct 30 | 7a |
| 21788 | Thurmont | Apr 14 | Oct 30 | 7a |
| 21790 | Apr 2 | Nov 6 | 7a | |
| 21791 | Union Bridge | Apr 22 | Oct 20 | 7a |
| 21793 | Walkersville | Apr 2 | Nov 6 | 7a |
| 21798 | Woodsboro | Apr 22 | Oct 20 | 7a |
Nearby counties
Washington County Carroll County Montgomery County Howard County Baltimore County Baltimore city
All Maryland counties · Download Maryland frost dates (CSV)
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