Frost dates for Echo Bay, NV
At Echo Bay, the median last spring frost (32°F) is Feb 3 and the median first fall frost is Dec 11, for a typical growing season of 310 days. For a 90% chance that the last frost has passed, wait until Feb 28. Nearby ZIP codes are in USDA hardiness zones 9a to 9b.
- Feb 3Last spring frost (median)50% chance of 32°F after this date
- Feb 28Safer planting date10% chance of 32°F after this date
- Dec 11First fall frost (median)50% chance of 32°F by this date
- 310 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 | Jan 30 | Feb 19 | Mar 15 |
| 32°F | Jan 7 | Feb 3 | Feb 28 |
| 28°F | Dec 18 | Jan 12 | Feb 13 |
| 24°F | Dec 17 | Jan 6 | Feb 4 |
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 16 | Nov 30 | Dec 12 |
| 32°F | Nov 27 | Dec 11 | Dec 26 |
| 28°F | Dec 6 | Dec 24 | Jan 24 |
| 24°F | Dec 12 | Jan 1 | Jan 27 |
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 | 254 days | 281 days | 306 days |
| 32°F | 280 days | 310 days | 339 days |
| 28°F | 314 days | 348 days | 365 days |
| 24°F | 349 days | 365 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 99% |
| 28°F | 78% |
| 24°F | 24% |
Closest ZIP codes (each is closer to another station)
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 89040 | 9b | 25 to 30°F | 10 km |
| 89021 | 9a | 20 to 25°F | 37 km |
| 86443 | 9b | 25 to 30°F | 40 km |
| 89007 | 9a | 20 to 25°F | 44 km |
| 89005 | 9b | 25 to 30°F | 51 km |
| 89191 | 9a | 20 to 25°F | 52 km |
| 89156 | 9b | 25 to 30°F | 53 km |
| 89025 | 9a | 20 to 25°F | 53 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 USC00262497, at 36.3092, -114.4256, elevation 381 m (1,250 ft).
- Data quality: Representative (10+ years), 14 years of freeze data.
- Average days per year at or below 32°F: 13.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Valley Of Fire State Park (16 km)
- Overton (27 km)
- Callville Bay (33 km)
- Alan Bible Visitor Center (47 km)
- Bunkerville (59 km)
- N Las Vegas (62 km)
- Las Vegas Air Terminal (70 km)
- Las Vegas McCarran Airport (71 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.