Frost dates for Lytle Rch, UT
At Lytle Rch, the median last spring frost (32°F) is Mar 18 and the median first fall frost is Nov 9, for a typical growing season of 234 days. For a 90% chance that the last frost has passed, wait until Apr 16. Nearby ZIP codes are in USDA hardiness zone 8a.
- Mar 18Last spring frost (median)50% chance of 32°F after this date
- Apr 16Safer planting date10% chance of 32°F after this date
- Nov 9First fall frost (median)50% chance of 32°F by this date
- 234 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 | Mar 17 | Apr 11 | May 4 |
| 32°F | Feb 23 | Mar 18 | Apr 16 |
| 28°F | Jan 29 | Feb 24 | Mar 22 |
| 24°F | Dec 30 | Jan 30 | Feb 25 |
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 | Oct 11 | Oct 29 | Nov 13 |
| 32°F | Oct 22 | Nov 9 | Nov 27 |
| 28°F | Nov 4 | Nov 23 | Dec 9 |
| 24°F | Nov 17 | Dec 6 | Dec 30 |
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 | 170 days | 199 days | 227 days |
| 32°F | 200 days | 234 days | 263 days |
| 28°F | 238 days | 273 days | 303 days |
| 24°F | 276 days | 311 days | 345 days |
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 100% |
| 32°F | 100% |
| 28°F | 100% |
| 24°F | 98% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 84765 | 8a | 10 to 15°F | 22 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 USC00425252, at 37.1431, -114.0214, elevation 850 m (2,787 ft).
- Data quality: Representative (10+ years), 16 years of freeze data.
- Average days per year at or below 32°F: 87.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- St. George (37 km)
- Veyo Powerhouse (39 km)
- Enterprise (55 km)
- La Verkin (67 km)
- Modena (73 km)
- New Harmony (74 km)
- Enterprise Beryl Junction (77 km)
- Zion National Park (92 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.