Frost dates for Kodachrome Basin Park, UT
At Kodachrome Basin Park, the median last spring frost (32°F) is May 31 and the median first fall frost is Sep 28, for a typical growing season of 116 days. For a 90% chance that the last frost has passed, wait until Jun 18. Nearby ZIP codes are in USDA hardiness zones 6a to 7a.
- May 31Last spring frost (median)50% chance of 32°F after this date
- Jun 18Safer planting date10% chance of 32°F after this date
- Sep 28First fall frost (median)50% chance of 32°F by this date
- 116 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 1 | Jun 15 | Jun 30 |
| 32°F | May 13 | May 31 | Jun 18 |
| 28°F | Apr 28 | May 15 | Jun 5 |
| 24°F | Apr 11 | Apr 29 | 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 4 | Sep 18 | Sep 30 |
| 32°F | Sep 15 | Sep 28 | Oct 9 |
| 28°F | Sep 24 | Oct 5 | Oct 20 |
| 24°F | Oct 1 | Oct 16 | Nov 1 |
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 | 72 days | 92 days | 111 days |
| 32°F | 94 days | 116 days | 137 days |
| 28°F | 116 days | 142 days | 165 days |
| 24°F | 145 days | 169 days | 191 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 |
|---|---|---|---|
| 84718 | 6a | -10 to -5°F | 11 km |
| 84776 | 6a | -10 to -5°F | 15 km |
| 84736 | 6b | -5 to 0°F | 24 km |
| 84764 | 6a | -10 to -5°F | 31 km |
| 84741 | 7a | 0 to 5°F | 43 km |
| 84735 | 6a | -10 to -5°F | 43 km |
| 84726 | 7a | 0 to 5°F | 45 km |
| 84710 | 6a | -10 to -5°F | 46 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 USC00424755, at 37.5142, -111.9883, elevation 1769 m (5,805 ft).
- Data quality: Standard (24+ years of data), 29 years of freeze data.
- Average days per year at or below 32°F: 186.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Bryce Canyon National Park Hqrs (21 km)
- Bryce Canyon Airport (25 km)
- Hatch (42 km)
- Alton (44 km)
- Escalante (45 km)
- Paria Ranger Station (46 km)
- Panguitch (52 km)
- Big Water (56 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.