When to plant in Mililani Mauka / Launani Valley, HI
Planting dates worked out from Mililani Mauka / Launani Valley's own frost records, not a generic zone chart.
Frost is rare in Mililani Mauka / Launani Valley: in 18 of the last 18 springs there was none at all. Frost dates matter less here than heat, so the planting table below is left out.
Safe to plant out
Jan 1
1 year in 10 has a later frost
Average last frost
Jan 1
about a 50% chance of a later one
Average first fall frost
Dec 31
1 year in 10 by Dec 31
Frost-free days
363
median, 1991–2020
Station used: Schofield Barracks Hawaii · 9.9 km away · station 299 m, town 272 m. How we match towns to stations
Mililani Mauka / Launani Valley's weather over time
How the growing season has shifted here, year by year, from the station's own records.
Each year's frost-free daysLong-term trend
See the data as a table
| Year | Frost-free days |
|---|---|
| 2000 | 363 |
| 2001 | 363 |
| 2002 | 363 |
| 2005 | 363 |
| 2007 | 363 |
| 2008 | 363 |
| 2009 | 363 |
| 2010 | 363 |
| 2012 | 363 |
| 2013 | 363 |
| 2014 | 363 |
| 2015 | 363 |
| 2016 | 363 |
| 2017 | 363 |
| 2018 | 363 |
| 2019 | 363 |
| 2020 | 363 |
| 2021 | 363 |
| 2022 | 363 |
| 2023 | 363 |
| 2024 | 363 |
Each year's average temperature, April to SeptemberLong-term trend
See the data as a table
| Year | Growing-season temperature |
|---|---|
| 2000 | 22.7 °C |
| 2001 | 22.9 °C |
| 2002 | 23.2 °C |
| 2003 | 22.9 °C |
| 2005 | 23.1 °C |
| 2007 | 22.9 °C |
| 2008 | 22.6 °C |
| 2009 | 22.6 °C |
| 2010 | 22.5 °C |
| 2012 | 22.2 °C |
| 2013 | 22.7 °C |
| 2014 | 22.9 °C |
| 2015 | 23.2 °C |
| 2016 | 23.0 °C |
| 2017 | 23.1 °C |
| 2018 | 23.2 °C |
| 2019 | 23.6 °C |
| 2020 | 23.1 °C |
| 2021 | 22.1 °C |
| 2022 | 22.9 °C |
| 2023 | 22.7 °C |
| 2024 | 22.8 °C |
What this means for you: This station's record is too short to show a reliable trend yet.
Source: daily records from Schofield Barracks Hawaii (NOAA GHCN-Daily). Years with too many missing days are left out.