Hawaii · NOAA station USC00518838
Frost dates for Upper Wahiawa 874.3, HI
Upper Wahiawa 874.3 did not record a 32°F freeze in the 1991–2020 normals period, so it has no spring or fall frost date. Frost-tender plants can grow year-round here, though cold snaps are still possible. Nearby ZIP codes are in USDA hardiness zone 12a.
- 0%Chance of 32°F in a year
- 0%Chance of 36°F in a year
- 64.5°FAverage lowest temp (annual mean min)
Chance of a freeze in any year
| Temperature | Chance per year |
|---|---|
| 36°F | 0% |
| 32°F | 0% |
| 28°F | 0% |
| 24°F | 0% |
ZIP codes whose closest station is this one
| ZIP | Hardiness zone | Avg. extreme low | Distance |
|---|---|---|---|
| 96786 | 12a | 50 to 55°F | 4 km |
| 96857 | 12a | 50 to 55°F | 5 km |
| 96759 | 12a | 50 to 55°F | 7 km |
| 96789 | 12a | 50 to 55°F | 8 km |
| 96797 | 12a | 50 to 55°F | 10 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 USC00518838, at 21.4992, -158.0111, elevation 307 m (1,006 ft).
- Data quality: Representative (10+ years), 11 years of freeze data.
- Average days per year at or below 32°F: 0.
- Frost risk changes over short distances. Valleys and low spots freeze earlier than hillsides and city centers.
Nearby weather stations
- Poamoho Exp. Fm 855.2 (9 km)
- Waimea Valley 892.2 (16 km)
- Kapaka Farm 904.1 (16 km)
- Puu Manawahua 725.6 (17 km)
- Waihee 837.5 (18 km)
- Makaha Ctry Club 800.3 (19 km)
- Ewa Beach USGS 702.2 (21 km)
- Ewa Kalaeloa Airport (21 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.