Frost dates for Baggs, WY
At Baggs, the median last spring frost (32°F) is Jun 1 and the median first fall frost is Sep 18, for a typical growing season of 108 days. For a 90% chance that the last frost has passed, wait until Jun 18. Nearby ZIP codes are in USDA hardiness zones 4b to 5b.
- Jun 1Last spring frost (median)50% chance of 32°F after this date
- Jun 18Safer planting date10% chance of 32°F after this date
- Sep 18First fall frost (median)50% chance of 32°F by this date
- 108 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 | Jun 2 | Jun 17 | Jul 2 |
| 32°F | May 15 | Jun 1 | Jun 18 |
| 28°F | Apr 30 | May 13 | May 31 |
| 24°F | Apr 14 | May 1 | May 17 |
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 21 | Sep 6 | Sep 18 |
| 32°F | Sep 4 | Sep 18 | Oct 1 |
| 28°F | Sep 15 | Sep 28 | Oct 12 |
| 24°F | Sep 26 | Oct 9 | Oct 24 |
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 | 56 days | 80 days | 99 days |
| 32°F | 86 days | 108 days | 129 days |
| 28°F | 117 days | 137 days | 157 days |
| 24°F | 139 days | 159 days | 180 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 |
|---|---|---|---|
| 82321 | 4b | -25 to -20°F | 6 km |
| 82323 | 4b | -25 to -20°F | 12 km |
| 82332 | 5b | -15 to -10°F | 30 km |
| 81653 | 5b | -15 to -10°F | 38 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 USC00480484, at 41.0383, -107.6578, elevation 1926 m (6,319 ft).
- Data quality: Standard (24+ years of data), 26 years of freeze data.
- Average days per year at or below 32°F: 206.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Wamsutter (75 km)
- Saratoga (85 km)
- Saratoga 4n (89 km)
- Rawlins 1n (92 km)
- Rawlins Muni Airport (93 km)
- Bitter Creek 4 NE (94 km)
- Elk Mountain (126 km)
- Centennial 1ne (132 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.