Frost dates for Tehachapi 4 SE, CA
At Tehachapi 4 SE, the median last spring frost (32°F) is Apr 28 and the median first fall frost is Oct 26, for a typical growing season of 183 days. For a 90% chance that the last frost has passed, wait until May 21. Nearby ZIP codes are in USDA hardiness zones 8b to 9a.
- Apr 28Last spring frost (median)50% chance of 32°F after this date
- May 21Safer planting date10% chance of 32°F after this date
- Oct 26First fall frost (median)50% chance of 32°F by this date
- 183 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 | Apr 27 | May 16 | Jun 5 |
| 32°F | Apr 11 | Apr 28 | May 21 |
| 28°F | Mar 14 | Apr 12 | Apr 30 |
| 24°F | Feb 10 | Mar 14 | Apr 14 |
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 | Sep 26 | Oct 10 | Nov 1 |
| 32°F | Oct 4 | Oct 26 | Nov 17 |
| 28°F | Oct 22 | Nov 16 | Dec 5 |
| 24°F | Nov 9 | Dec 4 | Dec 23 |
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 | 122 days | 149 days | 176 days |
| 32°F | 154 days | 183 days | 209 days |
| 28°F | 187 days | 218 days | 250 days |
| 24°F | 225 days | 263 days | 300 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 93561 | 8b | 15 to 20°F | 9 km |
| 93581 | 8b | 15 to 20°F | 14 km |
| 93531 | 9a | 20 to 25°F | 23 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 USC00048829, at 35.1011, -118.4222, elevation 1286 m (4,220 ft).
- Data quality: Representative (10+ years), 16 years of freeze data.
- Average days per year at or below 32°F: 82.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Mojave (24 km)
- Loraine 5 NNE (31 km)
- Fairmont (44 km)
- Lancaster Wm J Fox Field (44 km)
- Sandberg (48 km)
- Palmdale Airport (61 km)
- S Lake Fs (61 km)
- Palmdale (64 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.