Frost Dates for Ainaloa, HI

Based on data from Glenwood #2 55.4 weather station, 10 miles away

Frost Dates

This location never reaches freezing temperatures, so you can plant year-round!

In tropical and subtropical climates, the main challenge isn’t frost — it’s heat and humidity. Learn more about gardening in tropical climates.

19.53°N, -154.99°W © OpenStreetMap

USDA Hardiness Zone iHardiness zones indicate which perennial plants can survive winter in your area. For annual vegetables, frost dates and growing season length matter more than hardiness zone.

Zone 11a

Avg. annual minimum: 40 to 45°F (4 to 7°C)

Learn more

Köppen Climate iThe Köppen climate classification system categorizes climates based on temperature and precipitation patterns.

Cfb Oceanic (Marine West Coast)

Mild year-round with cool summers and wet winters. Excellent for cool-season crops like brassicas, peas, and root vegetables. Extended harvest seasons but summer heat-loving crops may struggle.

Köppen climate map

Temperature

50° 60° 70° 80°
65°
High: 74°F
Avg: 65°F
Low: 56°F
Jan
64°
High: 72°F
Avg: 64°F
Low: 56°F
Feb
65°
High: 73°F
Avg: 65°F
Low: 57°F
Mar
66°
High: 73°F
Avg: 66°F
Low: 58°F
Apr
67°
High: 75°F
Avg: 67°F
Low: 59°F
May
68°
High: 76°F
Avg: 68°F
Low: 60°F
Jun
69°
High: 77°F
Avg: 69°F
Low: 62°F
Jul
70°
High: 77°F
Avg: 70°F
Low: 62°F
Aug
70°
High: 78°F
Avg: 70°F
Low: 61°F
Sep
69°
High: 77°F
Avg: 69°F
Low: 61°F
Oct
67°
High: 75°F
Avg: 67°F
Low: 59°F
Nov
66°
High: 74°F
Avg: 66°F
Low: 57°F
Dec
Avg High Avg Temp Avg Low

Precipitation

0" 4" 8" 12" 14.6"
10.9"
10.88"
Jan
10.9"
10.92"
Feb
13.8"
13.75"
Mar
14.6"
14.55"
Apr
10.7"
10.65"
May
11.3"
11.31"
Jun
12.2"
12.20"
Jul
11.0"
10.99"
Aug
10.7"
10.74"
Sep
11.8"
11.82"
Oct
11.9"
11.86"
Nov
14.2"
14.18"
Dec

Sunrise / Sunset

4a7a10a1p4p7p10pNoonJanFebMarAprMayJunJulAugSepOctNovDec11h11.5h12h12.5h13h13h13h12.5h12h11.5h11h11h
Jan: 6:32 AM – 5:28 PM · 10h 57m
Feb: 6:19 AM – 5:41 PM · 11h 22m
Mar: 6:04 AM – 5:56 PM · 11h 52m
Apr: 5:47 AM – 6:13 PM · 12h 27m
May: 5:32 AM – 6:28 PM · 12h 55m
Jun: 5:25 AM – 6:35 PM · 13h 10m
Jul: 5:28 AM – 6:32 PM · 13h 04m
Aug: 5:40 AM – 6:20 PM · 12h 40m
Sep: 5:57 AM – 6:03 PM · 12h 06m
Oct: 6:14 AM – 5:46 PM · 11h 33m
Nov: 6:28 AM – 5:32 PM · 11h 03m
Dec: 6:35 AM – 5:25 PM · 10h 50m
Daylight Longest: 13h 11m · Shortest: 10h 49m

Nearby Stations

Hilo 5 S, HI Hawaii Vol Np Hq 54, HI Hilo Intl AP, HI Mauna Loa 5 Nne, HI April 12 - December 1 Kihalani 132.5, HI Sea Mtn 12.15, HI

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