Frost dates in Williamson County, Texas
Average (50%) last spring and first fall 32°F frost dates and USDA hardiness zone for each ZIP code in Williamson County. Pick a ZIP for 10% and 90% odds.
| ZIP | Place | Last spring frost | First fall frost | Zone |
|---|---|---|---|---|
| 76527 | Florence | Mar 6 | Nov 24 | 8b |
| 76530 | Granger | Mar 5 | Nov 22 | 9a |
| 76537 | Jarrell | Mar 6 | Nov 24 | 8b |
| 76573 | Mar 5 | Nov 22 | 8b | |
| 76574 | Taylor | Mar 8 | Nov 21 | 9a |
| 76578 | Thrall | Mar 8 | Nov 21 | 9a |
| 78613 | Cedar Park | Mar 11 | Nov 20 | 9a |
| 78615 | Coupland | Mar 4 | Nov 24 | 9a |
| 78626 | Georgetown | Mar 6 | Nov 24 | 9a |
| 78628 | Georgetown | Mar 6 | Nov 24 | 9a |
| 78633 | Georgetown | Mar 6 | Nov 24 | 8b |
| 78634 | Hutto | Mar 8 | Nov 21 | 9a |
| 78642 | Liberty Hill | Mar 2 | Nov 29 | 8b |
| 78664 | Round Rock | Mar 11 | Nov 20 | 9a |
| 78665 | Round Rock | Mar 6 | Nov 24 | 9a |
| 78674 | Weir | Mar 6 | Nov 24 | 9a |
| 78681 | Round Rock | Mar 11 | Nov 20 | 9a |
| 78717 | Austin | Mar 11 | Nov 20 | 9a |
| 78729 | Austin | Mar 11 | Nov 20 | 9a |