USDA Hardiness Zone 12b
Frost Dates for 96761 — Lahaina, Hawaii
NOAA 1991–2020 normals from Puukolii 457.1, HI (421 ft), 2 miles northwest.
Updated
No night at or below 32°F was recorded at Puukolii 457.1, HI in 1991–2020, not even 36°F, so Lahaina has no frost dates to plan around; the coolest month, February, averages a low of 64°F.
- Winters with a freeze
- 0%
- Winters with 36°F
- 0%
- Coldest month low
- 64°F
- Hardiness zone
- 12b
32°F or below, 1991–2020
frost possible on leaves
average, February
55 to 60°F (12.8 to 15.6°C) coldest night
- First snow
- Rare
- Last snow
- Rare
- Winters with snow
- 0%
- Snow per year
- 0"
median, 1991–2020
median, 1991–2020
0 of 20 observed
NOAA normal
Frost risk by date in Lahaina
Puukolii 457.1, HI, 2 miles northwest of Lahaina, did not record a night at or below 32°F in 1991–2020. 36 of the 37 other Hawaii stations behind this site's ZIP pages recorded no 32°F night either.
Freeze probabilities 1991–2020 at Puukolii 457.1, HI, from NOAA NCEI U.S. Climate Normals. Where a temperature is reached in fewer than 99.5% of years, the dates describe only the years that reach it. Not a forecast.
Frost risk on any date in 96761 →Compare Lahaina with another place →
Weather by month in Lahaina
August is the warmest month at Puukolii 457.1, HI, averaging 85°F by day and 71°F at night; January is the coldest at 77°F and 64°F. Not one month recorded a 32°F night; the lowest monthly average low is 64°F.
Warmth for growing adds up to 8,814 growing degree days a year (base 50°F), fewer than at 60% of the 35 Hawaii stations. 46% of them (4,064) have built up by the end of June, and August adds the most, 859. Precipitation totals 23.3 inches a year, most in March (3.7") and least in June (0.6"); May to September bring 20% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 77 | 64 | 3.4 | 0% | 0 | 629 |
| Feb | 77 | 64 | 2.1 | 0% | 0 | 568 |
| Mar | 78 | 65 | 3.7 | 0% | 0 | 656 |
| Apr | 79 | 66 | 1.7 | 0% | 0 | 675 |
| May | 81 | 67 | 1.2 | 0% | 0 | 744 |
| Jun | 83 | 69 | 0.6 | 0% | 0 | 792 |
| Jul | 84 | 70 | 0.8 | 0% | 0 | 840 |
| Aug | 85 | 71 | 0.9 | 0% | 0 | 859 |
| Sep | 85 | 70 | 1.2 | 0% | 0 | 827 |
| Oct | 83 | 70 | 1.9 | 0% | 0 | 820 |
| Nov | 80 | 68 | 2.6 | 0% | 0 | 729 |
| Dec | 78 | 66 | 3.2 | 0% | 0 | 676 |
Monthly normals 1991–2020 at Puukolii 457.1, HI (421 ft), NOAA NCEI. "32°F night": chance of at least one in the month. GDD: growing degree days, base 50°F.
Compared with the next station
The nearest other station, Kahului Airport, HI, 15 miles east of Lahaina and 370 feet lower, has no 32°F night on record either, and the same coolest-month low, 64°F.
When it snows in Lahaina, Hawaii
Measurable snow is rare here: only 0 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Puukolii 457.1, HI, 1.5 miles away, so there is no typical first-snow date to plan around.
Where these figures come from
ZIP 96761 is 2 miles from Puukolii 457.1, HI, which stands at 421 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. The 2023 USDA Plant Hardiness Zone Map lists ZIP 96761 in zone 12b, the band where the coldest night of the year averaged 55 to 60°F (12.8 to 15.6°C) over 1991–2020; a zone describes winter lows, not frost dates.
Hardiness zone and temperature range: USDA Plant Hardiness Zone Map 2023 (USDA-ARS, Oregon State University), ZIP-code listing, unchanged. °C converted from °F by this site.
Thirty-year averages, not a forecast: check the forecast before planting out. How stations are matched and which pages are offered to search engines: methodology.