Frost dates for Meteor Crater, AZ
At Meteor Crater, the median last spring frost (32°F) is Apr 30 and the median first fall frost is Oct 23, for a typical growing season of 174 days. For a 90% chance that the last frost has passed, wait until May 26. Nearby ZIP codes are in USDA hardiness zones 6a to 7a.
- Apr 30Last spring frost (median)50% chance of 32°F after this date
- May 26Safer planting date10% chance of 32°F after this date
- Oct 23First fall frost (median)50% chance of 32°F by this date
- 174 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 | Apr 24 | May 13 | Jun 5 |
| 32°F | Apr 8 | Apr 30 | May 26 |
| 28°F | Mar 21 | Apr 16 | May 15 |
| 24°F | Mar 2 | Mar 28 | Apr 30 |
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 25 | Oct 13 | Oct 29 |
| 32°F | Oct 1 | Oct 23 | Nov 7 |
| 28°F | Oct 14 | Nov 3 | Nov 17 |
| 24°F | Oct 25 | Nov 13 | Nov 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 | 122 days | 152 days | 176 days |
| 32°F | 143 days | 174 days | 199 days |
| 28°F | 166 days | 199 days | 228 days |
| 24°F | 191 days | 226 days | 258 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 100% |
Closest ZIP codes (each is closer to another station)
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 86003 | 7a | 0 to 5°F | 28 km |
| 86047 | 7a | 0 to 5°F | 40 km |
| 86035 | 7a | 0 to 5°F | 41 km |
| 86024 | 7a | 0 to 5°F | 43 km |
| 86038 | 6b | -5 to 0°F | 45 km |
| 86004 | 6b | -5 to 0°F | 50 km |
| 86005 | 6a | -10 to -5°F | 55 km |
| 86017 | 7a | 0 to 5°F | 61 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 USC00025494, at 35.0364, -111.0231, elevation 1687 m (5,535 ft).
- Data quality: Estimated from nearby stations (2+ years), 10 years of freeze data.
- Average days per year at or below 32°F: 119.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Twin Arrows (26 km)
- Winslow Muni Airport (28 km)
- Walnut Canyon National Monument (47 km)
- Happy Jack Ranger Station (48 km)
- Blue Ridge Ranger Station (50 km)
- Mund's Park (57 km)
- Flagstaff Pulliam Airport (60 km)
- Sunset Crater National Monument (60 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.