Frost dates for Las Vegas WFO, NV
At Las Vegas WFO, the median last spring frost (32°F) is Feb 4 and the median first fall frost is Dec 5, for a typical growing season of 302 days. For a 90% chance that the last frost has passed, wait until Feb 27. Nearby ZIP codes are in USDA hardiness zones 9a to 9b.
- Feb 4Last spring frost (median)50% chance of 32°F after this date
- Feb 27Safer planting date10% chance of 32°F after this date
- Dec 5First fall frost (median)50% chance of 32°F by this date
- 302 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 3 | Feb 24 | Mar 12 |
| 32°F | Jan 10 | Feb 4 | Feb 27 |
| 28°F | Dec 17 | Jan 13 | Feb 11 |
| 24°F | Dec 15 | Jan 3 | Jan 24 |
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 | Nov 9 | Nov 23 | Dec 7 |
| 32°F | Nov 19 | Dec 5 | Dec 23 |
| 28°F | Nov 29 | Dec 20 | Jan 17 |
| 24°F | Dec 11 | Dec 31 | Jan 19 |
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 | 242 days | 271 days | 297 days |
| 32°F | 273 days | 302 days | 331 days |
| 28°F | 309 days | 339 days | 365 days |
| 24°F | 345 days | 365 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 87% |
| 24°F | 35% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 89139 | 9a | 20 to 25°F | 3 km |
| 89123 | 9b | 25 to 30°F | 3 km |
| 89118 | 9a | 20 to 25°F | 4 km |
| 89183 | 9a | 20 to 25°F | 6 km |
| 89141 | 9a | 20 to 25°F | 7 km |
| 89113 | 9a | 20 to 25°F | 7 km |
| 89052 | 9a | 20 to 25°F | 10 km |
| 89148 | 9a | 20 to 25°F | 10 km |
| 89147 | 9a | 20 to 25°F | 11 km |
| 89178 | 9a | 20 to 25°F | 12 km |
| 89054 | 9a | 20 to 25°F | 14 km |
| 89044 | 9a | 20 to 25°F | 17 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 USC00264439, at 36.0469, -115.1847, elevation 693 m (2,275 ft).
- Data quality: Representative (10+ years), 22 years of freeze data.
- Average days per year at or below 32°F: 19.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Las Vegas McCarran Airport (3 km)
- Las Vegas Air Terminal (18 km)
- N Las Vegas (22 km)
- Red Rock Canyon - Spg Mount Rch S (25 km)
- Goodsprings (32 km)
- Alan Bible Visitor Center (35 km)
- Callville Bay (42 km)
- Desert Nwr (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.