Fern Acres weather by month
What a typical year looks like in Fern Acres, Hawaii: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Hilo International Airport 87, 24 km from Fern Acres; records cover 1949–2026.
The year at a glance
- Precipitation a year
- 120.4 in3058 mm
- Snow a year
- Rare
- Last spring freeze
- Rare
- First fall freeze
- Rare
- Heating degree days
- 0
- Cooling degree days
- 3,282
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are 60°16° (heating, 99%) and 89°32° (cooling, 1%).
Month by month
Fern Acres in January
Highs average 79°26° and lows 64°18°, with 7.9 in200 mm of precipitation in a typical January.
- Record high
- 92°33° (1997)
- Record low
- 54°12° (1969)
- Heating degree days
- 0
- Cooling degree days
- 198
Fern Acres in February
Highs average 78°26° and lows 64°18°, with 10.2 in260 mm of precipitation in a typical February.
- Record high
- 92°33° (1968)
- Record low
- 53°12° (1962)
- Heating degree days
- 0
- Cooling degree days
- 175
Fern Acres in March
Highs average 79°26° and lows 65°18°, with 12.7 in322 mm of precipitation in a typical March.
- Record high
- 93°34° (1972)
- Record low
- 54°12° (1971)
- Heating degree days
- 0
- Cooling degree days
- 212
Fern Acres in April
Highs average 79°26° and lows 66°19°, with 9.4 in239 mm of precipitation in a typical April.
- Record high
- 89°32° (1963)
- Record low
- 58°14° (2008)
- Heating degree days
- 0
- Cooling degree days
- 226
Fern Acres in May
Highs average 81°27° and lows 67°20°, with 7 in178 mm of precipitation in a typical May.
- Record high
- 94°34° (1966)
- Record low
- 58°14° (2024)
- Heating degree days
- 0
- Cooling degree days
- 279
Fern Acres in June
Highs average 82°28° and lows 69°20°, with 7.3 in185 mm of precipitation in a typical June.
- Record high
- 90°32° (1969)
- Record low
- 61°16° (1956)
- Heating degree days
- 0
- Cooling degree days
- 308
Fern Acres in July
Highs average 83°28° and lows 70°21°, with 9.2 in235 mm of precipitation in a typical July.
- Record high
- 93°34° (2020)
- Record low
- 62°17° (1970)
- Heating degree days
- 0
- Cooling degree days
- 352
Fern Acres in August
Highs average 83°28° and lows 70°21°, with 11.3 in287 mm of precipitation in a typical August.
- Record high
- 93°34° (1950)
- Record low
- 63°17° (1950)
- Heating degree days
- 0
- Cooling degree days
- 361
Fern Acres in September
Highs average 83°29° and lows 70°21°, with 8.7 in221 mm of precipitation in a typical September.
- Record high
- 93°34° (2014)
- Record low
- 61°16° (1970)
- Heating degree days
- 0
- Cooling degree days
- 346
Fern Acres in OctoberThis month
Highs average 82°28° and lows 69°21°, with 10.2 in260 mm of precipitation in a typical October.
- Record high
- 91°33° (1961)
- Record low
- 62°17° (1949)
- Heating degree days
- 0
- Cooling degree days
- 332
Fern Acres in November
Highs average 80°27° and lows 68°20°, with 14.4 in366 mm of precipitation in a typical November.
- Record high
- 94°34° (2013)
- Record low
- 58°14° (1949)
- Heating degree days
- 0
- Cooling degree days
- 268
Fern Acres in December
Highs average 79°26° and lows 66°19°, with 12.1 in307 mm of precipitation in a typical December.
- Record high
- 93°34° (1980)
- Record low
- 55°13° (1977)
- Heating degree days
- 0
- Cooling degree days
- 225