Utah · NOAA station USC00427846
Frost dates for Silver Lake Brighton, UT
Silver Lake Brighton can freeze in any month: NOAA flags it as having a year-round risk of 32°F, too cold to compute spring and fall frost dates. The median stretch between 32°F freezes is 79 days. Nearby ZIP codes are in USDA hardiness zones 5b to 7a.
- 100%Chance of 32°F in a year
- 79 daysMedian freeze-free stretch
- 232Days at or below 32°Faverage per year
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 |
|---|---|---|---|
| 84060 | 6a | -10 to -5°F | 8 km |
| 84121 | 6a | -10 to -5°F | 9 km |
| 84092 | 6b | -5 to 0°F | 12 km |
| 84049 | 6a | -10 to -5°F | 12 km |
| 84109 | 6b | -5 to 0°F | 15 km |
| 84003 | 6a | -10 to -5°F | 17 km |
| 84098 | 5b | -15 to -10°F | 17 km |
| 84004 | 7a | 0 to 5°F | 17 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 USC00427846, at 40.6008, -111.5842, elevation 2664 m (8,740 ft).
- Data quality: Standard (24+ years of data), 29 years of freeze data.
- Average days per year at or below 32°F: 232.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Alta (5 km)
- Park City (9 km)
- Snake Creek Powerhouse (9 km)
- Cottonwood Weir (17 km)
- Heber (18 km)
- Mountain Dell Dam (20 km)
- Timpanogos Cave (20 km)
- Alpine (22 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.