Maunaloa weather by month
What a typical year looks like in Maunaloa, Hawaii: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Molokai Kaunakakai Molokai Airport, 12 km from Maunaloa; records cover 1949–2026.
The year at a glance
- Precipitation a year
- 21.7 in552 mm
- Snow a year
- Rare
- Last spring freeze
- Rare
- First fall freeze
- Rare
- Heating degree days
- 0
- Cooling degree days
- 3,981
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 56°13° (heating, 99%) and 90°32° (cooling, 1%).
Month by month
Maunaloa in January
Highs average 79°26° and lows 64°18°, with 3.6 in90 mm of precipitation in a typical January.
- Record high
- 88°31° (1989)
- Record low
- 52°11° (1950)
- Heating degree days
- 0
- Cooling degree days
- 203
Maunaloa in February
Highs average 79°26° and lows 65°18°, with 2.3 in59 mm of precipitation in a typical February.
- Record high
- 89°32° (1980)
- Record low
- 48°9° (1951)
- Heating degree days
- 0
- Cooling degree days
- 188
Maunaloa in March
Highs average 79°26° and lows 66°19°, with 3 in77 mm of precipitation in a typical March.
- Record high
- 87°31° (2025)
- Record low
- 46°8° (1987)
- Heating degree days
- 0
- Cooling degree days
- 233
Maunaloa in April
Highs average 81°27° and lows 67°19°, with 1.5 in39 mm of precipitation in a typical April.
- Record high
- 92°33° (1981)
- Record low
- 48°9° (1989)
- Heating degree days
- 0
- Cooling degree days
- 272
Maunaloa in May
Highs average 83°28° and lows 69°20°, with 1.2 in29 mm of precipitation in a typical May.
- Record high
- 90°32° (2019)
- Record low
- 52°11° (1989)
- Heating degree days
- 0
- Cooling degree days
- 332
Maunaloa in June
Highs average 85°29° and lows 72°22°, with 0.61 in15 mm of precipitation in a typical June.
- Record high
- 90°32° (2018)
- Record low
- 55°13° (1957)
- Heating degree days
- 0
- Cooling degree days
- 393
Maunaloa in July
Highs average 86°30° and lows 73°23°, with 0.62 in16 mm of precipitation in a typical July.
- Record high
- 92°33° (2016)
- Record low
- 58°14° (1989)
- Heating degree days
- 0
- Cooling degree days
- 437
Maunaloa in August
Highs average 87°30° and lows 73°23°, with 0.84 in21 mm of precipitation in a typical August.
- Record high
- 93°34° (1974)
- Record low
- 56°13° (1982)
- Heating degree days
- 0
- Cooling degree days
- 463
Maunaloa in September
Highs average 87°30° and lows 73°23°, with 0.99 in25 mm of precipitation in a typical September.
- Record high
- 94°34° (2019)
- Record low
- 59°15° (1955)
- Heating degree days
- 0
- Cooling degree days
- 442
Maunaloa in OctoberThis month
Highs average 86°30° and lows 71°22°, with 1.5 in39 mm of precipitation in a typical October.
- Record high
- 93°34° (2019)
- Record low
- 58°14° (1949)
- Heating degree days
- 0
- Cooling degree days
- 417
Maunaloa in November
Highs average 83°28° and lows 70°21°, with 2.7 in68 mm of precipitation in a typical November.
- Record high
- 91°33° (2020)
- Record low
- 57°14° (1949)
- Heating degree days
- 0
- Cooling degree days
- 336
Maunaloa in December
Highs average 80°27° and lows 67°19°, with 2.9 in73 mm of precipitation in a typical December.
- Record high
- 90°32° (2020)
- Record low
- 50°10° (1985)
- Heating degree days
- 0
- Cooling degree days
- 265