Frost dates for Red Rock Canyon - Spg Mount Rch S, NV
At Red Rock Canyon - Spg Mount Rch S, the median last spring frost (32°F) is Mar 13 and the median first fall frost is Nov 15, for a typical growing season of 244 days. For a 90% chance that the last frost has passed, wait until Apr 11. Nearby ZIP codes are in USDA hardiness zones 8b to 9a.
- Mar 13Last spring frost (median)50% chance of 32°F after this date
- Apr 11Safer planting date10% chance of 32°F after this date
- Nov 15First fall frost (median)50% chance of 32°F by this date
- 244 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 11 | Apr 6 | Apr 25 |
| 32°F | Feb 20 | Mar 13 | Apr 11 |
| 28°F | Jan 29 | Feb 21 | Mar 19 |
| 24°F | Dec 28 | Feb 1 | Feb 26 |
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 22 | Nov 5 | Nov 19 |
| 32°F | Oct 31 | Nov 15 | Nov 30 |
| 28°F | Nov 9 | Nov 27 | Dec 15 |
| 24°F | Nov 22 | Dec 11 | 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 | 188 days | 213 days | 240 days |
| 32°F | 210 days | 244 days | 275 days |
| 28°F | 246 days | 278 days | 311 days |
| 24°F | 285 days | 319 days | 355 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 95% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 89004 | 8b | 15 to 20°F | 5 km |
| 89161 | 8b | 15 to 20°F | 6 km |
| 89135 | 9a | 20 to 25°F | 9 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 USC00266691, at 36.0686, -115.4603, elevation 1152 m (3,780 ft).
- Data quality: Representative (10+ years), 24 years of freeze data.
- Average days per year at or below 32°F: 75.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Las Vegas WFO (25 km)
- Goodsprings (26 km)
- Las Vegas McCarran Airport (27 km)
- Mount Charleston Fire Station (27 km)
- Las Vegas Air Terminal (29 km)
- N Las Vegas (36 km)
- Desert Nwr (42 km)
- Pahrump 4 NW (58 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.