Frost dates for Randsburg, CA
At Randsburg, the median last spring frost (32°F) is Mar 19 and the median first fall frost is Nov 25, for a typical growing season of 251 days. For a 90% chance that the last frost has passed, wait until Apr 13. Nearby ZIP codes are in USDA hardiness zones 8b to 9a.
- Mar 19Last spring frost (median)50% chance of 32°F after this date
- Apr 13Safer planting date10% chance of 32°F after this date
- Nov 25First fall frost (median)50% chance of 32°F by this date
- 251 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 16 | Apr 9 | May 4 |
| 32°F | Feb 20 | Mar 19 | Apr 13 |
| 28°F | Jan 12 | Feb 20 | Mar 29 |
| 24°F | Dec 18 | Jan 21 | Feb 27 |
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 24 | Nov 12 | Nov 30 |
| 32°F | Nov 5 | Nov 25 | Dec 13 |
| 28°F | Nov 18 | Dec 8 | Dec 29 |
| 24°F | Nov 29 | Dec 24 | Jan 28 |
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 | 186 days | 216 days | 245 days |
| 32°F | 219 days | 251 days | 285 days |
| 28°F | 250 days | 291 days | 333 days |
| 24°F | 301 days | 340 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 99% |
| 24°F | 81% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 93528 | 9a | 20 to 25°F | 1 km |
| 93558 | 9a | 20 to 25°F | 7 km |
| 93554 | 9a | 20 to 25°F | 10 km |
| 93519 | 8b | 15 to 20°F | 29 km |
| 93516 | 8b | 15 to 20°F | 40 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 USC00047253, at 35.3692, -117.6525, elevation 1088 m (3,570 ft).
- Data quality: Representative (10+ years), 25 years of freeze data.
- Average days per year at or below 32°F: 33.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Inyokern (35 km)
- China Lake Naf (36 km)
- Trona (50 km)
- Mojave (58 km)
- Loraine 5 NNE (69 km)
- S Lake Fs (71 km)
- Tehachapi 4 SE (76 km)
- Barstow (78 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.