Frost dates for Pineview Dam, UT
At Pineview Dam, the median last spring frost (32°F) is May 22 and the median first fall frost is Sep 26, for a typical growing season of 125 days. For a 90% chance that the last frost has passed, wait until Jun 8. Nearby ZIP codes are in USDA hardiness zones 6a to 7a.
- May 22Last spring frost (median)50% chance of 32°F after this date
- Jun 8Safer planting date10% chance of 32°F after this date
- Sep 26First fall frost (median)50% chance of 32°F by this date
- 125 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 | May 24 | Jun 9 | Jun 24 |
| 32°F | May 7 | May 22 | Jun 8 |
| 28°F | Apr 21 | May 4 | May 20 |
| 24°F | Apr 4 | Apr 19 | May 3 |
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 | Aug 31 | Sep 14 | Sep 28 |
| 32°F | Sep 11 | Sep 26 | Oct 9 |
| 28°F | Sep 23 | Oct 6 | Oct 22 |
| 24°F | Oct 1 | Oct 19 | Nov 3 |
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 | 77 days | 96 days | 118 days |
| 32°F | 102 days | 125 days | 146 days |
| 28°F | 131 days | 154 days | 172 days |
| 24°F | 158 days | 183 days | 204 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 |
|---|---|---|---|
| 84403 | 6b | -5 to 0°F | 6 km |
| 84310 | 6a | -10 to -5°F | 9 km |
| 84408 | 6b | -5 to 0°F | 11 km |
| 84414 | 6b | -5 to 0°F | 13 km |
| 84405 | 7a | 0 to 5°F | 16 km |
| 84401 | 7a | 0 to 5°F | 17 km |
| 84317 | 6a | -10 to -5°F | 19 km |
| 84040 | 7a | 0 to 5°F | 19 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 USC00426869, at 41.2578, -111.8378, elevation 1506 m (4,940 ft).
- Data quality: Standard (24+ years of data), 27 years of freeze data.
- Average days per year at or below 32°F: 193.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Ogden NE Bench (8 km)
- Ogden Pioneer Ph (9 km)
- Eden-Liberty (10 km)
- Huntsville Monastery (11 km)
- Ogden Hinkley Airport (16 km)
- Ogden Sugar Factory (16 km)
- Weber Basin Pump Plant 3 (18 km)
- Morgan (26 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.