Frost dates for Victorville, CA
At Victorville, the median last spring frost (32°F) is Mar 18 and the median first fall frost is Nov 11, for a typical growing season of 233 days. For a 90% chance that the last frost has passed, wait until Apr 12. Nearby ZIP codes are in USDA hardiness zone 8b.
- Mar 18Last spring frost (median)50% chance of 32°F after this date
- Apr 12Safer planting date10% chance of 32°F after this date
- Nov 11First fall frost (median)50% chance of 32°F by this date
- 233 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 | Mar 22 | Apr 11 | Apr 30 |
| 32°F | Feb 23 | Mar 18 | Apr 12 |
| 28°F | Jan 27 | Feb 22 | Mar 19 |
| 24°F | Dec 24 | Jan 29 | Feb 25 |
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 16 | Nov 1 | Nov 14 |
| 32°F | Oct 27 | Nov 11 | Nov 26 |
| 28°F | Nov 7 | Nov 24 | Dec 11 |
| 24°F | Nov 16 | Dec 7 | Jan 4 |
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 | 174 days | 200 days | 226 days |
| 32°F | 203 days | 233 days | 262 days |
| 28°F | 241 days | 273 days | 306 days |
| 24°F | 278 days | 317 days | 353 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 97% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 92395 | 8b | 15 to 20°F | 3 km |
| 92394 | 8b | 15 to 20°F | 7 km |
| 92392 | 8b | 15 to 20°F | 12 km |
| 92368 | 8b | 15 to 20°F | 15 km |
| 92307 | 8b | 15 to 20°F | 15 km |
| 92342 | 8b | 15 to 20°F | 26 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 USC00049325, at 34.5292, -117.2928, elevation 878 m (2,880 ft).
- Data quality: Representative (10+ years), 25 years of freeze data.
- Average days per year at or below 32°F: 54.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Hesperia 2e (12 km)
- El Mirage (32 km)
- Lake Arrowhead (33 km)
- Wrightwood (37 km)
- Big Bear Lake (47 km)
- Barstow (47 km)
- Pearblossom (55 km)
- Redlands (55 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.