Few U.S. towns get more rain and snow than Fern Acres: 229 inches a year
Midsummer highs settle at about 77°. By January nights alone, it runs milder than almost every U.S. town. The gap between a January night and a July afternoon is 22°. Garden chairs stay out from January to December, the months with highs of 72–78°.
A year in Fern Acres at a glance
Each month’s typical high and low, and what it brings.
What stands out about Fern Acres’ climate
Compared with towns across the U.S., with Fern Acres’ place in Hawaii beside it.
What a year in Fern Acres feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
Frost is rare
Frost and day counts come from Glenwood #2 55.4, HI, 4 miles away.
The 2023 USDA map puts Fern Acres’ center in zone 12a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 50°. Plant labels use the zone; frost dates tell you when to plant.
About 229 inches of rain a year
August is the wettest month and January the driest. Rain falls on about 301 days a year. Snow is rare: about 0.0" in a normal year at Glenwood #2 55.4, HI, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Fern Acres
16% of the work is heating, so air conditioning is the bigger bill. No month averages under 55°.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Glenwood #2 55.4, HI.
Living with Fern Acres’ climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 12a. Frost almost never comes, so tender plants can often stay out through winter.
Months with highs of 62–84° and lows of 40° or more: January, February, March, April, May, June, July, August, September, October, November and December. 2.1 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Fern Acres from natural hazards, river flooding is the largest share (51%). Normals are averages; the hazards page covers the extremes.
Natural hazards →Fern Acres and its neighbors
Every town next door is within a degree of Fern Acres in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Fern Acres’, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Fern Acres, HI | 56° | 77° | 229" | 0.0" |
| Ketchikan, AK | 32° | 65° | 150" | 35" |
| Tillamook, OR | 38° | 71° | 87" | 0.2" |
| Ocean Shores, WA | 38° | 66° | 82" | 0.0" |
| Crescent City, CA | 42° | 64° | 69" | 0.0" |
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
How Fern Acres compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Fern Acres’ place among Hawaii’s.
Fern Acres weather by month
Highs, lows and precipitation from the nearest NOAA station; snow, wet days and snow on the ground from Glenwood #2 55.4, HI. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground |
|---|---|---|---|---|---|---|
| January | 74° | 56° | 13.1" | 0.0" | 17 | 0 |
| February | 72° | 56° | 15.8" | 0.0" | 20 | 0 |
| March | 73° | 57° | 22.9" | 0.0" | 26 | 0 |
| April | 73° | 58° | 22.0" | 0.0" | 28 | 0 |
| May | 75° | 59° | 15.0" | 0.0" | 25 | 0 |
| June | 76° | 60° | 18.1" | 0.0" | 27 | 0 |
| July | 77° | 62° | 19.0" | 0.0" | 28 | 0 |
| August | 77° | 62° | 23.5" | 0.0" | 29 | 0 |
| September | 78° | 61° | 16.1" | 0.0" | 26 | 0 |
| October | 77° | 61° | 18.2" | 0.0" | 27 | 0 |
| November | 75° | 59° | 23.1" | 0.0" | 25 | 0 |
| December | 74° | 57° | 22.3" | 0.0" | 23 | 0 |
| Year | 75° | 59° | 229.1" | 0.0" | 301 | 0 |
Where Fern Acres’ numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s 1991–2020 normals at the nearest station (NOAA’s grid doesn’t cover Hawaii).
- Snow: Glenwood #2 55.4, HI.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Glenwood #2 55.4, HI, 4 miles from the town’s center, 660 ft higher; no station nearby passes every check; this is the nearest one in the same valley, flagged above.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Fern Acres’ climate
What is the weather like in Fern Acres?
A typical July afternoon reaches 77°, a January night drops to 56°, and snow is almost unheard of. Milder January nights than all but 177 U.S. towns; cooler July afternoons than 97% of U.S. towns.
How cold does it get in Fern Acres in winter?
February nights average 56°. A night at 32° or below comes in only some winters (0.0 a year on average).
How much snow does Fern Acres get?
About 0.0 inches in a normal winter at Glenwood #2 55.4, HI, so most winters see none.
How hot does it get in Fern Acres?
July, with a typical high of 77°. 90° days are rare: none in a normal year at Glenwood #2 55.4, HI.
When is the first and last frost in Fern Acres?
Most years have no frost at all: a 32° night comes in about 0% of winters at Glenwood #2 55.4, HI, usually in December or January.
What growing zone is Fern Acres in?
Zone 12a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 50°.
What is the best time of year to visit Fern Acres?
By one simple rule (highs of 62–84° and lows of 40° or more), January, February, March, April, May, June, July, August, September, October, November and December. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Neighbors talk weather
Gardens, snow, and the best days of the year in Fern Acres.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.