Kalawao County, Hawaii · Frost dates
Kalawao County frost dates.
First-frost, last-frost, and growing-season length for Kalawao County, Hawaii. Sourced from NOAA 1991-2020 Climate Normals.
Data confidence: low · USDA zone: 11a
32°F — light freeze
Last spring frost
- 10%
- 05-18
- 20%
- 05-04
- 50%
- 04-12
- 80%
- 03-23
- 90%
- 03-13
First fall frost
- 10%
- 11-09
- 20%
- 11-16
- 50%
- 12-01
- 80%
- 12-25
- 90%
- 01-07
28°F — killing freeze
Last spring freeze
- 10%
- 03-13
- 20%
- 03-04
- 50%
- 02-13
- 80%
- 01-30
- 90%
- 01-15
First fall freeze
- 10%
- 12-17
- 20%
- 12-29
- 50%
- 01-22
- 80%
- 02-13
- 90%
- 02-23
Growing season length (days, 28°F threshold)
- Short year
- 279
- Median
- 343
- Long year
- 404
Source NOAA station
MAUNA LOA 5 NNE, HI US
147.4 mi · 30 yrs of record (1991–2020) · 11179 ft elev.
No NOAA station within 75 miles meets the long-record threshold. Estimated from MAUNA LOA 5 NNE, HI US, 147.4 miles away. Consult your state extension service for local frost dates.
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