Ahuimanu, HI climate
Ahuimanu has warm winters and pleasant summers, with plenty of rain. A typical July afternoon reaches 83°, a January night drops to 64°, and snow is almost unheard of.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Ahuimanu feels like
Winter
Spring
Summer
Fall
Ahuimanu weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground |
|---|---|---|---|---|---|---|
| January | 78° | 64° | 6.2" | 0 | 18 | 0 |
| February | 77° | 64° | 7.4" | 0 | 17 | 0 |
| March | 77° | 65° | 9.0" | 0 | 20 | 0 |
| April | 79° | 67° | 5.5" | 0 | 21 | 0 |
| May | 81° | 68° | 4.9" | 0 | 20 | 0 |
| June | 83° | 71° | 4.4" | 0 | 23 | 0 |
| July | 83° | 72° | 4.7" | 0 | 24 | 0 |
| August | 84° | 72° | 5.4" | 0 | 23 | 0 |
| September | 84° | 71° | 6.4" | 0 | 22 | 0 |
| October | 82° | 70° | 7.2" | 0 | 23 | 0 |
| November | 80° | 69° | 8.0" | 0 | 22 | 0 |
| December | 78° | 67° | 7.1" | 0 | 22 | 0 |
| Year | 80° | 68° | 76.2" | 0.0" | 255 | 0 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more.
Rain and snow in Ahuimanu
Ahuimanu gets 76 inches of rain and melted snow a year. March is the wettest month and June the driest. Rain or snow falls on about 255 days a year.
A year-round growing season
Heating and cooling a home in Ahuimanu
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Ahuimanu, 0% of that work is heating and 100% is cooling, so air conditioning is the bigger bill.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Ahuimanu and its neighbors
Ahuimanu borders 2 towns with climate data. January nights across them vary by 1.9°. Kahaluu has the coldest January nights (64°) and Heeia the hottest July afternoons (84°). Ahuimanu’s January low is 64° and its July high 83°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Ahuimanu compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Common questions about Ahuimanu’s climate
What is the coldest month in Ahuimanu?
February, with a typical high of 77° and a low of 64°.
What is the hottest month in Ahuimanu?
August, with a typical high of 84° and a low of 72°.
How much snow does Ahuimanu get?
Almost none. A normal year brings 0.0 inches.
When is the first frost in Ahuimanu?
Frost is uncommon. Only 0% of years see a night at 32° or below.
What is the rainiest month in Ahuimanu?
March, with 9.0 inches of rain and melted snow. The year totals 76 inches.
NOAA’s gridded normals don’t cover this state, so temperatures and rainfall come from the nearest weather station. Snow, frost dates and day counts come from NOAA’s weather station at Waihee 837.5, HI (1 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020.