Frost dates for Sanders, AZ
At Sanders, the median last spring frost (32°F) is May 22 and the median first fall frost is Oct 8, for a typical growing season of 138 days. For a 90% chance that the last frost has passed, wait until Jun 10. Nearby ZIP codes are in USDA hardiness zone 6b.
- May 22Last spring frost (median)50% chance of 32°F after this date
- Jun 10Safer planting date10% chance of 32°F after this date
- Oct 8First fall frost (median)50% chance of 32°F by this date
- 138 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 | May 20 | Jun 4 | Jun 17 |
| 32°F | May 5 | May 22 | Jun 10 |
| 28°F | Apr 21 | May 7 | May 31 |
| 24°F | Apr 5 | Apr 25 | May 16 |
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 | Sep 17 | Oct 1 | Oct 13 |
| 32°F | Sep 25 | Oct 8 | Oct 22 |
| 28°F | Sep 30 | Oct 17 | Nov 2 |
| 24°F | Oct 10 | Oct 27 | Nov 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 | 97 days | 117 days | 136 days |
| 32°F | 115 days | 138 days | 161 days |
| 28°F | 133 days | 161 days | 184 days |
| 24°F | 154 days | 185 days | 211 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 |
|---|---|---|---|
| 86506 | 6b | -5 to 0°F | 16 km |
| 86512 | 6b | -5 to 0°F | 16 km |
| 86508 | 6b | -5 to 0°F | 26 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 USC00027488, at 35.2239, -109.3222, elevation 1784 m (5,853 ft).
- Data quality: Representative (10+ years), 23 years of freeze data.
- Average days per year at or below 32°F: 159.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Painted Desert National Park (44 km)
- Window Rock Airport (54 km)
- Ganado (58 km)
- Petrified Forest National Park (70 km)
- St. Johns Industrial Airport (79 km)
- Saint Johns (79 km)
- Holbrook (83 km)
- Keams Canyon (102 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.