Frost dates for Callville Bay, NV
At Callville Bay, the median last spring frost (32°F) is Jan 31 and the median first fall frost is Dec 11, for a typical growing season of 317 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.
- Jan 31Last spring frost (median)50% chance of 32°F after this date
- Feb 27Safer planting date10% chance of 32°F after this date
- Dec 11First fall frost (median)50% chance of 32°F by this date
- 317 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 31 | Feb 21 | Mar 11 |
| 32°F | Dec 30 | Jan 31 | Feb 27 |
| 28°F | Dec 13 | Jan 3 | Feb 7 |
| 24°F | Dec 16 | Jan 2 | Jan 14 |
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 17 | Dec 1 | Dec 14 |
| 32°F | Nov 28 | Dec 11 | Dec 27 |
| 28°F | Dec 6 | Dec 23 | Jan 16 |
| 24°F | Dec 15 | Jan 1 | Jan 12 |
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 | 256 days | 281 days | 309 days |
| 32°F | 283 days | 317 days | 347 days |
| 28°F | 325 days | 356 days | 365 days |
| 24°F | 360 days | 365 days | 365 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 98% |
| 28°F | 67% |
| 24°F | 14% |
Closest ZIP codes (each is closer to another station)
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 89005 | 9b | 25 to 30°F | 19 km |
| 89015 | 9b | 25 to 30°F | 21 km |
| 89011 | 9b | 25 to 30°F | 22 km |
| 89156 | 9b | 25 to 30°F | 23 km |
| 89002 | 9b | 25 to 30°F | 26 km |
| 89142 | 9b | 25 to 30°F | 27 km |
| 89191 | 9a | 20 to 25°F | 27 km |
| 89122 | 9b | 25 to 30°F | 28 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 USC00261371, at 36.1414, -114.7275, elevation 387 m (1,270 ft).
- Data quality: Representative (10+ years), 15 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
- Alan Bible Visitor Center (16 km)
- Echo Bay (33 km)
- N Las Vegas (36 km)
- Valley Of Fire State Park (37 km)
- Las Vegas McCarran Airport (40 km)
- Las Vegas WFO (42 km)
- Las Vegas Air Terminal (43 km)
- Overton (52 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.