Frost dates in Hartford County, Connecticut
The average last spring frost in Hartford County falls Apr 17 to Apr 30 and the average first fall frost Oct 16 to Oct 26, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6a to 6b. Places: Blue Hills, Bristol, Broad Brook, Collinsville, East Hartford, Glastonbury Center. 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 |
|---|---|---|---|---|
| 06001 | Apr 25 | Oct 18 | 6b | |
| 06002 | Blue Hills | Apr 21 | Oct 16 | 6b |
| 06010 | Bristol | Apr 25 | Oct 18 | 6b |
| 06013 | Apr 25 | Oct 18 | 6a | |
| 06016 | Broad Brook | Apr 21 | Oct 16 | 6b |
| 06019 | Collinsville | Apr 25 | Oct 18 | 6a |
| 06020 | Apr 25 | Oct 18 | 6a | |
| 06022 | Apr 30 | Oct 17 | 6a | |
| 06023 | Apr 26 | Oct 16 | 6b | |
| 06026 | Apr 21 | Oct 16 | 6b | |
| 06027 | Apr 30 | Oct 17 | 6a | |
| 06032 | Apr 25 | Oct 18 | 6b | |
| 06033 | Glastonbury Center | Apr 17 | Oct 26 | 6b |
| 06035 | Salmon Brook | Apr 21 | Oct 16 | 6b |
| 06037 | Kensington | Apr 26 | Oct 16 | 6b |
| 06040 | Manchester | Apr 17 | Oct 26 | 6b |
| 06042 | Manchester | Apr 17 | Oct 26 | 6b |
| 06051 | New Britain | Apr 17 | Oct 26 | 6b |
| 06052 | New Britain | Apr 17 | Oct 26 | 6b |
| 06053 | New Britain | Apr 17 | Oct 26 | 6b |
| 06059 | Apr 30 | Oct 17 | 6a | |
| 06060 | North Granby | Apr 28 | Oct 17 | 6a |
| 06062 | Apr 25 | Oct 18 | 6b | |
| 06065 | Riverton | Apr 30 | Oct 17 | 6a |
| 06067 | Apr 17 | Oct 26 | 6b | |
| 06070 | Simsbury Center | Apr 21 | Oct 16 | 6b |
| 06073 | Apr 17 | Oct 26 | 6b | |
| 06074 | Apr 17 | Oct 26 | 6b | |
| 06078 | Suffield Depot | Apr 21 | Oct 16 | 6b |
| 06080 | Apr 21 | Oct 16 | 6b | |
| 06081 | Tariffville | Apr 21 | Oct 16 | 6b |
| 06082 | Hazardville | Apr 21 | Oct 16 | 6b |
| 06085 | Apr 25 | Oct 18 | 6b | |
| 06088 | Apr 21 | Oct 16 | 6b | |
| 06089 | Weatogue | Apr 25 | Oct 18 | 6b |
| 06090 | Apr 30 | Oct 17 | 6a | |
| 06091 | Apr 30 | Oct 17 | 6a | |
| 06092 | West Simsbury | Apr 30 | Oct 17 | 6b |
| 06093 | Apr 21 | Oct 16 | 6b | |
| 06095 | Apr 21 | Oct 16 | 6b | |
| 06096 | Windsor Locks | Apr 21 | Oct 16 | 6b |
| 06103 | Hartford | Apr 17 | Oct 26 | 6b |
| 06105 | Hartford | Apr 17 | Oct 26 | 6b |
| 06106 | Hartford | Apr 17 | Oct 26 | 6b |
| 06107 | West Hartford | Apr 17 | Oct 26 | 6b |
| 06108 | East Hartford | Apr 17 | Oct 26 | 6b |
| 06109 | Wethersfield | Apr 17 | Oct 26 | 6b |
| 06110 | West Hartford | Apr 17 | Oct 26 | 6b |
| 06111 | Newington | Apr 17 | Oct 26 | 6b |
| 06112 | Hartford | Apr 17 | Oct 26 | 6b |
| 06114 | Hartford | Apr 17 | Oct 26 | 6b |
| 06117 | West Hartford | Apr 17 | Oct 26 | 6b |
| 06118 | East Hartford | Apr 17 | Oct 26 | 6b |
| 06119 | West Hartford | Apr 17 | Oct 26 | 6b |
| 06120 | Hartford | Apr 17 | Oct 26 | 6b |
| 06444 | Apr 26 | Oct 16 | 6b | |
| 06447 | Terramuggus | Apr 17 | Oct 26 | 6b |
| 06467 | Apr 26 | Oct 16 | 6b | |
| 06479 | Plantsville | Apr 26 | Oct 16 | 6b |
| 06489 | Apr 26 | Oct 16 | 6b |
Nearby counties
Tolland County Litchfield County Middlesex County New Haven County Windham County New London County
All Connecticut counties · Download Connecticut frost dates (CSV)
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