Frost dates for Desert Nwr, NV
At Desert Nwr, the median last spring frost (32°F) is Mar 22 and the median first fall frost is Nov 7, for a typical growing season of 229 days. For a 90% chance that the last frost has passed, wait until Apr 13. Nearby ZIP codes are in USDA hardiness zones 8a to 9a.
- Mar 22Last spring frost (median)50% chance of 32°F after this date
- Apr 13Safer planting date10% chance of 32°F after this date
- Nov 7First fall frost (median)50% chance of 32°F by this date
- 229 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 21 | Apr 10 | May 2 |
| 32°F | Feb 28 | Mar 22 | Apr 13 |
| 28°F | Feb 7 | Mar 1 | Mar 25 |
| 24°F | Jan 3 | Feb 7 | Mar 3 |
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 13 | Oct 28 | Nov 11 |
| 32°F | Oct 21 | Nov 7 | Nov 22 |
| 28°F | Nov 3 | Nov 19 | Dec 6 |
| 24°F | Nov 17 | Dec 5 | Dec 26 |
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 | 172 days | 201 days | 224 days |
| 32°F | 204 days | 229 days | 253 days |
| 28°F | 235 days | 264 days | 291 days |
| 24°F | 270 days | 302 days | 335 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 |
|---|---|---|---|
| 89143 | 9a | 20 to 25°F | 14 km |
| 89166 | 8b | 15 to 20°F | 15 km |
| 89070 | 8b | 15 to 20°F | 26 km |
| 89018 | 8a | 10 to 15°F | 31 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 USC00262243, at 36.4381, -115.3600, elevation 888 m (2,914 ft).
- Data quality: Standard (24+ years of data), 27 years of freeze data.
- Average days per year at or below 32°F: 60.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Las Vegas Air Terminal (29 km)
- N Las Vegas (31 km)
- Mount Charleston Fire Station (32 km)
- Red Rock Canyon - Spg Mount Rch S (42 km)
- Las Vegas McCarran Airport (44 km)
- Las Vegas WFO (46 km)
- Mercury 3 SSW (63 km)
- Mercury Desert Rock Airport (63 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.