Frost dates for Ogden NE Bench, UT
At Ogden NE Bench, the median last spring frost (32°F) is Apr 19 and the median first fall frost is Oct 22, for a typical growing season of 186 days. For a 90% chance that the last frost has passed, wait until May 4. Nearby ZIP codes are in USDA hardiness zone 6b.
- Apr 19Last spring frost (median)50% chance of 32°F after this date
- May 4Safer planting date10% chance of 32°F after this date
- Oct 22First fall frost (median)50% chance of 32°F by this date
- 186 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 18 | May 2 | May 20 |
| 32°F | Apr 2 | Apr 19 | May 4 |
| 28°F | Mar 12 | Apr 2 | Apr 20 |
| 24°F | Feb 25 | Mar 15 | Apr 7 |
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 29 | Oct 12 | Oct 25 |
| 32°F | Oct 7 | Oct 22 | Nov 5 |
| 28°F | Oct 18 | Nov 1 | Nov 18 |
| 24°F | Oct 26 | Nov 13 | 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 | 139 days | 162 days | 182 days |
| 32°F | 165 days | 186 days | 208 days |
| 28°F | 188 days | 212 days | 236 days |
| 24°F | 214 days | 239 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 |
|---|---|---|---|
| 84403 | 6b | -5 to 0°F | 5 km |
| 84414 | 6b | -5 to 0°F | 9 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 USC00426405, at 41.2458, -111.9372, elevation 1394 m (4,572 ft).
- Data quality: Representative (10+ years), 10 years of freeze data.
- Average days per year at or below 32°F: 116.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Ogden Pioneer Ph (1 km)
- Ogden Sugar Factory (8 km)
- Ogden Hinkley Airport (8 km)
- Pineview Dam (8 km)
- Eden-Liberty (13 km)
- Weber Basin Pump Plant 3 (15 km)
- Huntsville Monastery (19 km)
- Farmington 3 NW (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.