Hawaii Frost Dates

Hawaii has 49 NOAA weather stations with freeze records in the 1991–2020 climate normals. The typical last spring frost ranges from January 26 at Kanalohuluhulu 1075 to April 12 at Mauna Loa 5 Nne; at half the stations it has come by January 26. The first fall frost typically arrives between December 1 at Mauna Loa 5 Nne and January 24 at Kanalohuluhulu 1075, with a median of December 1.

The growing season between the typical frosts runs from 235 days at Mauna Loa 5 Nne to 365 days at Kanalohuluhulu 1075; 235 days at the median station.

At 47 stations, NOAA records too few freezes to give a date: frost is rare there.

Every station in Hawaii

Typical dates have a 50% chance of a frost after them in spring, and before them in fall; safer dates, 10%. A garden can differ from its nearest station, especially in a valley or on a hillside: see why your garden may differ.

Hawaii: freeze (32 °F) dates by NOAA station, 1991–2020 normals
StationElevationLast frostSaferFirst frostSaferSeason (days)
Barking Sands13 ftFrost-free: too few freezes for a date
Ewa Beach Usgs 702.25 ftFrost-free: too few freezes for a date
Ewa Kalaeloa Ap54 ftFrost-free: too few freezes for a date
Glenwood #2 55.42,200 ftFrost-free: too few freezes for a date
Haleakala Rs 3386,962 ftFrost-free: too few freezes for a date
Hana Ap 35575 ftFrost-free: too few freezes for a date
Hawaii Vol Np Hq 543,971 ftFrost-free: too few freezes for a date
Hilo 5 S622 ftFrost-free: too few freezes for a date
Hilo Intl Ap38 ftFrost-free: too few freezes for a date
Honolulu Intl Ap7 ftFrost-free: too few freezes for a date
Kahului Ap51 ftFrost-free: too few freezes for a date
Kailua Kona Ke-Ahole Ap43 ftFrost-free: too few freezes for a date
Kanalohuluhulu 10753,600 ftJan 26May 16Jan 24Dec 20365
Kaneohe 838.148 ftFrost-free: too few freezes for a date
Kaneohe Bay Mcas10 ftFrost-free: too few freezes for a date
Kapaka Farm 904.13 ftFrost-free: too few freezes for a date
Kapalua-W Maui Ap 462.4240 ftFrost-free: too few freezes for a date
Ke-Ahole Pt 68.1320 ftFrost-free: too few freezes for a date
Kihalani 132.5914 ftFrost-free: too few freezes for a date
Kii-Kahuku 91125 ftFrost-free: too few freezes for a date
Kilauea 1134390 ftFrost-free: too few freezes for a date
Kula Branch Stn 324.53,100 ftFrost-free: too few freezes for a date
Kula Hospital 2673,030 ftFrost-free: too few freezes for a date
Lanai Ap 6561,300 ftFrost-free: too few freezes for a date
Lihue Wso Ap 1020.1100 ftFrost-free: too few freezes for a date
Mahaulepu 941.180 ftFrost-free: too few freezes for a date
Makaha Ctry Club 800.3250 ftFrost-free: too few freezes for a date
Makaweli 965140 ftFrost-free: too few freezes for a date
Makena Golf Crs 249.188 ftFrost-free: too few freezes for a date
Manoa Lyon Arbo 785.2500 ftFrost-free: too few freezes for a date
Mauna Loa 5 Nne11,179 ftApr 12May 18Dec 1Nov 9235
Molokai Ap443 ftFrost-free: too few freezes for a date
Ohe'O 258.686 ftFrost-free: too few freezes for a date
Opihihale #2 24.11,360 ftFrost-free: too few freezes for a date
Paauilo 221840 ftFrost-free: too few freezes for a date
Poamoho Exp Fm 855.2722 ftFrost-free: too few freezes for a date
Princeville Rch 1117217 ftFrost-free: too few freezes for a date
Puu Manawahua 725.61,673 ftFrost-free: too few freezes for a date
Puu-O-Hoku Rch 542.1674 ftFrost-free: too few freezes for a date
Puukohola Heiau 98.1133 ftFrost-free: too few freezes for a date
Puukolii 457.1421 ftFrost-free: too few freezes for a date
S Kona 2 2.322,121 ftFrost-free: too few freezes for a date
Sea Mtn 12.1580 ftFrost-free: too few freezes for a date
Upper Wahiawa 874.31,006 ftFrost-free: too few freezes for a date
Waihee 837.5108 ftFrost-free: too few freezes for a date
Waikiki 717.210 ftFrost-free: too few freezes for a date
Waimanalo Exp F 795.164 ftFrost-free: too few freezes for a date
Waimea 94720 ftFrost-free: too few freezes for a date
Waimea Valley 892.241 ftFrost-free: too few freezes for a date

Plan your garden with these dates

Enter your ZIP code in the planner: it picks the nearest of these stations and dates every crop in your beds from its frosts. Free, in your browser.

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Questions

When is the last frost in Hawaii?

It depends on where you are. The typical last spring frost at Hawaii's NOAA stations ranges from January 26 to April 12, and half of them have had it by January 26. Enter your ZIP code above for the station nearest you.

When is the first frost in Hawaii?

Typically between December 1 and January 24, depending on the station; the median is December 1. Plan fall crops back from your own station's date.

What do "typical" and "safer" mean?

With the typical (50%) last-frost date, half of years still have a frost after it. With the safer (10%) date, only one year in ten does. In fall it's the other way around: the safer date is the earlier one.

Other states

Sources

  1. NOAA National Centers for Environmental Information, U.S. Climate Normals 1991–2020 (annual/seasonal, by station: freeze dates at 32 °F)