Frost dates for Ogden Hinkley Airport, UT
At Ogden Hinkley Airport, the median last spring frost (32°F) is Apr 22 and the median first fall frost is Oct 22, for a typical growing season of 180 days. For a 90% chance that the last frost has passed, wait until May 10. Nearby ZIP codes are in USDA hardiness zone 7a.
- Apr 22Last spring frost (median)50% chance of 32°F after this date
- May 10Safer planting date10% chance of 32°F after this date
- Oct 22First fall frost (median)50% chance of 32°F by this date
- 180 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 | Apr 22 | May 8 | May 31 |
| 32°F | Apr 4 | Apr 22 | May 10 |
| 28°F | Mar 13 | Apr 3 | Apr 21 |
| 24°F | Feb 25 | Mar 12 | Apr 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 | Sep 28 | Oct 11 | Oct 25 |
| 32°F | Oct 7 | Oct 22 | Nov 6 |
| 28°F | Oct 18 | Nov 2 | Nov 17 |
| 24°F | Oct 25 | Nov 12 | Nov 27 |
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 | 129 days | 155 days | 176 days |
| 32°F | 158 days | 180 days | 204 days |
| 28°F | 185 days | 210 days | 238 days |
| 24°F | 215 days | 240 days | 265 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 |
|---|---|---|---|
| 84067 | 7a | 0 to 5°F | 4 km |
| 84015 | 7a | 0 to 5°F | 9 km |
| 84315 | 7a | 0 to 5°F | 11 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 USW00024126, at 41.1961, -112.0114, elevation 1362 m (4,470 ft).
- Data quality: Representative (10+ years), 20 years of freeze data.
- Average days per year at or below 32°F: 121.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Ogden Sugar Factory (4 km)
- Ogden Pioneer Ph (8 km)
- Ogden NE Bench (8 km)
- Weber Basin Pump Plant 3 (13 km)
- Pineview Dam (16 km)
- Farmington 3 NW (21 km)
- Eden-Liberty (21 km)
- Huntsville Monastery (25 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.