Frost dates for Yakutat 3 SSE, AK
At Yakutat 3 SSE, the median last spring frost (32°F) is May 13 and the median first fall frost is Sep 26, for a typical growing season of 133 days. For a 90% chance that the last frost has passed, wait until May 29. Nearby ZIP codes are in USDA hardiness zones 4b to 7a.
- May 13Last spring frost (median)50% chance of 32°F after this date
- May 29Safer planting date10% chance of 32°F after this date
- Sep 26First fall frost (median)50% chance of 32°F by this date
- 133 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 15 | May 30 | Jun 11 |
| 32°F | Apr 29 | May 13 | May 29 |
| 28°F | Apr 11 | Apr 28 | May 13 |
| 24°F | Mar 31 | Apr 13 | May 1 |
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 1 | Sep 13 | Sep 24 |
| 32°F | Sep 13 | Sep 26 | Oct 13 |
| 28°F | Sep 23 | Oct 12 | Nov 1 |
| 24°F | Oct 8 | Oct 27 | Nov 18 |
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 | 85 days | 104 days | 122 days |
| 32°F | 109 days | 133 days | 158 days |
| 28°F | 140 days | 166 days | 192 days |
| 24°F | 170 days | 196 days | 221 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 |
|---|---|---|---|
| 99689 | 6b | -5 to 0°F | 15 km |
| 99827 | 5b | -15 to -10°F | 212 km |
| 99840 | 5a | -20 to -15°F | 245 km |
| 99825 | 7a | 0 to 5°F | 251 km |
| 99566 | 4b | -25 to -20°F | 253 km |
| 99826 | 7a | 0 to 5°F | 253 km |
| 99850 | 7a | 0 to 5°F | 266 km |
| 99832 | 7a | 0 to 5°F | 269 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 USW00025382, at 59.5086, -139.6850, elevation 8 m (26 ft).
- Data quality: Estimated from nearby stations (2+ years), 4 years of freeze data.
- Average days per year at or below 32°F: 171.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Yakutat State Airport (1 km)
- Haines 40nw (188 km)
- Haines Airport (238 km)
- Elfin Cove (242 km)
- Haines #2 (242 km)
- Skagway Airport (246 km)
- Skagway (247 km)
- Glacier Bay (248 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.