Frost dates · Hawaii
Hawaii frost dates,
county by county.
Last spring frost and first fall frost probability data for all 5 counties in Hawaii, computed from the NOAA 1991–2020 Climate Normals. Every county page surfaces the full probability table at three temperature thresholds plus crop-specific planting guidance.
Variation across Hawaii
955 days separate the earliest and latest counties.
The median last spring frost in Maui County is February 13 — 955 days earlier than Honolulu County at —. Statewide averages aren't useful planting tools; pick your county below for the data that actually applies to your fields.
By frost timing
Counties sorted by last spring frost.
Latest at top, earliest at bottom. In most states this matches the north-to-south gradient.
Alphabetical