Frost dates for Hollister 2, CA
At Hollister 2, the median last spring frost (32°F) is Feb 19 and the median first fall frost is Dec 1, for a typical growing season of 287 days. For a 90% chance that the last frost has passed, wait until Mar 28. Nearby ZIP codes are in USDA hardiness zone 9b.
- Feb 19Last spring frost (median)50% chance of 32°F after this date
- Mar 28Safer planting date10% chance of 32°F after this date
- Dec 1First fall frost (median)50% chance of 32°F by this date
- 287 daysGrowing season (median)between 32°F freezes
Last spring frost dates
The chance that the temperature drops to the threshold after each date.
| Temperature | 90% chance later | 50% chance later | 10% chance later |
|---|---|---|---|
| 36°F | Feb 23 | Mar 27 | Apr 18 |
| 32°F | Jan 10 | Feb 19 | Mar 28 |
| 28°F | Dec 19 | Jan 16 | Feb 28 |
| 24°F | Dec 7 | Dec 31 | Jan 17 |
First fall frost dates
The chance that the temperature has dropped to the threshold by each date.
| Temperature | 10% chance by | 50% chance by | 90% chance by |
|---|---|---|---|
| 36°F | Oct 31 | Nov 15 | Dec 1 |
| 32°F | Nov 12 | Dec 1 | Dec 25 |
| 28°F | Nov 26 | Dec 14 | Jan 14 |
| 24°F | Dec 3 | Dec 22 | Jan 10 |
Growing season length
Days between the last spring and first fall freeze, as the length reached in 9, 5 and 1 out of 10 years.
| Temperature | 9 in 10 years at least | 5 in 10 years at least | 1 in 10 years at least |
|---|---|---|---|
| 36°F | 205 days | 235 days | 269 days |
| 32°F | 247 days | 287 days | 328 days |
| 28°F | 289 days | 337 days | 365 days |
| 24°F | 339 days | 365 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 83% |
| 24°F | 34% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 95045 | 9b | 25 to 30°F | 9 km |
| 95023 | 9b | 25 to 30°F | 12 km |
Not the official USDA Plant Hardiness Zone Map. Zones shown here are the values published in the USDA-ARS / Oregon State University PRISM Group 2023 ZIP code tables, shown unaltered. For the official interactive map, visit planthardiness.ars.usda.gov.
About this station
- NOAA station ID USC00044025, at 36.8483, -121.4214, elevation 84 m (275 ft).
- Data quality: Representative (10+ years), 23 years of freeze data.
- Average days per year at or below 32°F: 18.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Paicines 4 W (16 km)
- Gilroy (21 km)
- Salinas Municipal Airport (26 km)
- Salinas #2 (30 km)
- Watsonville Wtr Wks (32 km)
- Watsonville Muni Airport (34 km)
- San Luis Dam (40 km)
- Pinnacles National Monument (46 km)
Sources
- NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020, annual/seasonal normals by station (version 1.0.1), file dated June 27, 2023; documentation.
- USDA Agricultural Research Service and PRISM Group, Oregon State University, 2023 Plant Hardiness Zone Map ZIP code tables (CONUS, Alaska, Hawaii, Puerto Rico), files dated November 17, 2023. Data © PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 1, 2026. Official map: planthardiness.ars.usda.gov.
- U.S. Census Bureau, 2024 Gazetteer ZIP Code Tabulation Areas file, dated August 30, 2024 (ZIP centroids used to find the nearest station).
Freeze dates are 30-year probabilities, not forecasts. Check your local forecast before planting tender plants.