Photo: Larry D. Moore · CC BY 4.0Volcano’s winters are milder and less snowy than most of the U.S.
A typical July afternoon reaches 73°, a January night drops to 49°, and snow is almost unheard of.
A year in Volcano at a glance
Each month’s typical high and low, and what it brings.
What stands out about Volcano’s climate
Compared with towns across the U.S., with Volcano’s place in Hawaii beside it.
What a year in Volcano 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 NOAA’s station at Hawaii Vol Np Hq 54, HI, 4 miles from the town’s center, 480 ft lower.
The 2023 USDA map puts Volcano’s center in zone 11a: the coldest night of a typical winter, averaged over 1991–2020, reaches about 40°. Plant labels use the zone; frost dates tell you when to plant.
About 96 inches of rain a year
December is the wettest month and June the driest. Rain falls on about 295 days a year. Snow is rare: about 0.0" in a normal year at Hawaii Vol Np Hq 54, HI, so most winters see none.
Rain + melted snow by month
Inches of water
Heating and cooling a home in Volcano
94% of the work is heating, so the furnace matters far more than the air conditioner. 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 Hawaii Vol Np Hq 54, HI.
Living with Volcano’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
Zone 11a. 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. 5.0 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Volcano from natural hazards, river flooding is the largest share (48%). Normals are averages; the hazards page covers the extremes.
Natural hazards →Volcano and its neighbors
Mountain View the hottest July afternoons (77°, 4° warmer). Differences under a degree are within what the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Volcano’s, 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 |
|---|---|---|---|---|
| Volcano, HI | 49° | 73° | 96" | 0.0" |
| Tillamook, OR | 38° | 71° | 87" | 0.2" |
| Hoquiam, WA | 37° | 68° | 81" | 0.5" |
| Crescent City, CA | 42° | 64° | 69" | 0.0" |
| Brevard, NC | 27° | 83° | 69" | 7.1" |
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 Volcano compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Volcano’s place among Hawaii’s.
Volcano weather by month
Highs, lows and precipitation from the nearest NOAA station; snow, wet days and snow on the ground from Hawaii Vol Np Hq 54, HI. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground |
|---|---|---|---|---|---|---|
| January | 68° | 49° | 8.8" | 0.0" | 22 | 0 |
| February | 68° | 49° | 8.2" | 0.0" | 20 | 0 |
| March | 68° | 51° | 10.3" | 0.0" | 25 | 0 |
| April | 68° | 52° | 9.2" | 0.0" | 26 | 0 |
| May | 71° | 53° | 6.5" | 0.0" | 25 | 0 |
| June | 71° | 54° | 5.1" | 0.0" | 25 | 0 |
| July | 73° | 56° | 6.3" | 0.0" | 26 | 0 |
| August | 74° | 56° | 5.9" | 0.0" | 25 | 0 |
| September | 73° | 55° | 6.0" | 0.0" | 24 | 0 |
| October | 72° | 55° | 8.2" | 0.0" | 25 | 0 |
| November | 70° | 54° | 10.6" | 0.0" | 26 | 0 |
| December | 68° | 52° | 11.4" | 0.0" | 25 | 0 |
| Year | 70° | 53° | 96.2" | 0.0" | 295 | 0 |
Where Volcano’s 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: Hawaii Vol Np Hq 54, HI.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Hawaii Vol Np Hq 54, HI, 4 miles from the town’s center, 480 ft lower; the nearest station that passes our checks for distance, height and agreement with the grid.
- 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 Volcano’s climate
What is the weather like in Volcano?
A typical July afternoon reaches 73°, a January night drops to 49°, and snow is almost unheard of. Milder January nights than 96% of U.S. towns; cooler July afternoons than all but 126 U.S. towns.
How cold does it get in Volcano in winter?
February nights average 49°. A night at 32° or below comes in only some winters (0.0 a year on average).
How much snow does Volcano get?
About 0.0 inches in a normal winter at Hawaii Vol Np Hq 54, HI, so most winters see none.
How hot does it get in Volcano?
July, with a typical high of 73°. 90° days are rare: none in a normal year at Hawaii Vol Np Hq 54, HI.
When is the first and last frost in Volcano?
Most years have no frost at all: a 32° night comes in about 0% of winters at Hawaii Vol Np Hq 54, HI, usually in December or January.
What growing zone is Volcano in?
Zone 11a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about 40°.
What is the best time of year to visit Volcano?
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 Volcano.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.