Frost dates for Mund's Park, AZ
At Mund's Park, the median last spring frost (32°F) is Jun 10 and the median first fall frost is Sep 27, for a typical growing season of 106 days. For a 90% chance that the last frost has passed, wait until Jun 27. Nearby ZIP codes are in USDA hardiness zones 6b to 7a.
- Jun 10Last spring frost (median)50% chance of 32°F after this date
- Jun 27Safer planting date10% chance of 32°F after this date
- Sep 27First fall frost (median)50% chance of 32°F by this date
- 106 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 | Jun 11 | Jun 24 | Jul 8 |
| 32°F | May 26 | Jun 10 | Jun 27 |
| 28°F | May 5 | May 26 | Jun 12 |
| 24°F | Apr 18 | May 3 | May 26 |
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 5 | Sep 17 | Sep 27 |
| 32°F | Sep 14 | Sep 27 | Oct 8 |
| 28°F | Sep 26 | Oct 7 | Oct 22 |
| 24°F | Oct 6 | Oct 20 | Nov 4 |
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 | 62 days | 83 days | 100 days |
| 32°F | 87 days | 106 days | 126 days |
| 28°F | 113 days | 133 days | 157 days |
| 24°F | 143 days | 167 days | 190 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 |
|---|---|---|---|
| 86017 | 7a | 0 to 5°F | 4 km |
| 86038 | 6b | -5 to 0°F | 14 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 USC00025780, at 34.9364, -111.6392, elevation 1972 m (6,470 ft).
- Data quality: Representative (10+ years), 20 years of freeze data.
- Average days per year at or below 32°F: 213.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Oak Creek Canyon (11 km)
- Sedona (12 km)
- Flagstaff Pulliam Airport (23 km)
- Flagstaff 4 SW (26 km)
- Walnut Canyon National Monument (29 km)
- Happy Jack Ranger Station (30 km)
- Bellemont WFO (37 km)
- Fort Valley (38 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.