USDA Hardiness Zone 12a
Frost Dates for 96703 — Anahola, Hawaii
NOAA 1991–2020 normals from Kilauea 1134, HI (390 ft), 7 miles northwest.
Updated
No night at or below 32°F was recorded at Kilauea 1134, HI in 1991–2020, not even 36°F, so Anahola has no frost dates to plan around; the coolest month, January, averages a low of 63°F.
- Winters with a freeze
- 0%
- Winters with 36°F
- 0%
- Coldest month low
- 63°F
- Hardiness zone
- 12a
32°F or below, 1991–2020
frost possible on leaves
average, January
50 to 55°F (10.0 to 12.8°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 Anahola
Kilauea 1134, HI, 7 miles northwest of Anahola, 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 Kilauea 1134, 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 96703 →Compare Anahola with another place →
Weather by month in Anahola
August is the warmest month at Kilauea 1134, HI, averaging 83°F by day and 72°F at night; January is the coldest at 77°F and 63°F. Not one month recorded a 32°F night; the lowest monthly average low is 63°F.
Warmth for growing adds up to 8,718 growing degree days a year (base 50°F), fewer than at 66% of the 35 Hawaii stations. 46% of them (3,988) have built up by the end of June, and August adds the most, 853. Precipitation totals 61.3 inches a year, most in March (7.5") and least in June (3.7"); May to September bring 34% of it.
| Month | High °F | Low °F | Precip. in | 32°F night | Nights ≤ 32°F | GDD 50°F |
|---|---|---|---|---|---|---|
| Jan | 77 | 63 | 4.5 | 0% | 0 | 614 |
| Feb | 77 | 64 | 5.3 | 0% | 0 | 566 |
| Mar | 76 | 64 | 7.5 | 0% | 0 | 631 |
| Apr | 78 | 66 | 4.4 | 0% | 0 | 669 |
| May | 80 | 68 | 4.8 | 0% | 0 | 739 |
| Jun | 82 | 70 | 3.7 | 0% | 0 | 770 |
| Jul | 83 | 71 | 3.9 | 0% | 0 | 837 |
| Aug | 83 | 72 | 4.5 | 0% | 0 | 853 |
| Sep | 84 | 71 | 4.0 | 0% | 0 | 825 |
| Oct | 83 | 70 | 5.0 | 0% | 0 | 818 |
| Nov | 80 | 68 | 7.2 | 0% | 0 | 720 |
| Dec | 78 | 66 | 6.5 | 0% | 0 | 677 |
Monthly normals 1991–2020 at Kilauea 1134, HI (390 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, Lihue WSO Airport 1020.1, HI, 11 miles south of Anahola and 290 feet lower, has no 32°F night on record either, and a coolest-month low 3°F warmer (66°F).
When it snows in Anahola, Hawaii
Measurable snow is rare here: only 0 of 20 winters from 1991 to 2020 recorded 0.1 inch or more at Koloko Rsvr 1137, HI, 5.2 miles away, so there is no typical first-snow date to plan around.
Where these figures come from
ZIP 96703 is 7 miles from Kilauea 1134, HI, which stands at 390 feet, the nearest NOAA station that publishes freeze probabilities for 1991–2020. 1 other ZIP code shares the station; its figures are presented in full for 96754 (Kilauea). The 2023 USDA Plant Hardiness Zone Map lists ZIP 96703 in zone 12a, the band where the coldest night of the year averaged 50 to 55°F (10.0 to 12.8°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.