Opihihale, HI Climate: Temperature & Rain by Month
Average temperature and precipitation from NOAA NCEI 1991–2020 normals →, with a derived climate comfort score
- Warmer national band · Avg annual temp
- 68°FAnnual mean temperature: 68.1°F. National station-mapped location corpus median: 52.2°F across 6,861 measured records.
- Upper score band · Comfort score
- 100/100PlainClimate Comfort Score: 100/100. National station-mapped Comfort Score corpus median: 64/100 across 6,189 measured records.
- Drier than median · Annual precip
- 36.1"Annual precipitation: 36.1 inches. National station-mapped location corpus median: 36.2 inches across 6,352 measured records.
30-year climate normals (1991-2020) from Opihihale's primary NOAA station, OPIHIHALE #2 24.1.
The climate verdict for Opihihale
Warm-season cooling demand defines Opihihale, Hawaii, running at more than twice its heating total. The NOAA normal records an annual average of 68°F. It scores 100/100 for climate comfort (excellent), putting it in the top third of station-mapped location scores and exceeding 99% of them.
- 68°F
- average temperature, NOAA 1991-2020 normal
- 100/100
- comfort score, above 99% of station-mapped location scores
- 36.1"
- precipitation, annual total
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
68°F (20°C)Annual mean temperature: 68.1°F. National station-mapped location corpus median: 52.2°F across 6,861 measured records.
Warmer national band
Avg High
76°FAnnual average daily high: 75.5°F. National station-mapped location corpus median: 63.8°F across 6,861 measured records.
Warmer national band
Avg Low
61°FAnnual average daily low: 60.6°F. National station-mapped location corpus median: 41.1°F across 6,861 measured records.
Warmer national band
Annual Precip
36.1"Annual precipitation: 36.1 inches. National station-mapped location corpus median: 36.2 inches across 6,352 measured records.
Drier than median
Annual Snow
0.0"Annual snowfall: 0.0 inches. National station-mapped location corpus median: 18.9 inches across 4,098 measured records.
Low-snow national band
Comfort Score
100/100PlainClimate Comfort Score: 100/100. National station-mapped Comfort Score corpus median: 64/100 across 6,189 measured records.
Upper score band · Excellent
Opihihale sits in Hawaii, the #2 hottest U.S. state at 72.4°F statewide annual average - see all 50 hottest states ranked by NOAA normals
Climate Living Index · model supports three NOAA data products
Opihihale's broader climate profile: 96/100
A percentile-benchmarked model across annual, daily, and hourly climate normals. This record uses 2 measured NOAA products; every input remains inspectable.
PlainClimate-derived, not an official NOAA rating. This separate index does not replace the established Comfort Score used in rankings, and it is not a verdict on safety, health, housing, culture, or overall quality of life.
-
Annual temperature balance
68.1°F · 0.6° from 67.5°F
96/100 A · weight 25%Distance from a 67.5°F annual mean; smaller is better.
NOAA annual/seasonal normals ·
ANN-TAVG-NORMAL -
Precipitation balance
36.1 in · 1.1 from 35 in
94/100 A · weight 15%Distance from 35 annual inches; smaller is better.
NOAA annual/seasonal normals ·
ANN-PRCP-NORMAL -
Snowfall burden
0.0 inches/year
90/100 A · weight 10%Annual snowfall; lower is better in this formula.
NOAA annual/seasonal normals ·
ANN-SNOW-NORMAL -
Frost-free season
Not measured
N/A N/A · weight 10%Not scored; its 10% weight redistributes across measured dimensions.
Days between NOAA 50% spring and fall freeze dates; longer is better.
NOAA annual/seasonal normals ·
ANN-TMIN-PRBLST-T32FP50 + ANN-TMIN-PRBFST-T32FP50 -
Normal heat + freeze calendar
0 calendar days
100/100 A · weight 25%Normal high ≥90°F days plus normal low ≤32°F days; lower is better.
NOAA daily multivariate normals ·
DLY-TMAX-NORMAL + DLY-TMIN-NORMAL (derived counts) -
Summer moisture balance
Not measured
N/A N/A · weight 15%Not scored; its 15% weight redistributes across measured dimensions.
June–August mean dew point distance from 52.5°F; smaller is better.
NOAA hourly normals ·
HLY-DEWP-NORMAL
Live national benchmark table and calculation
Each raw metric is linearly interpolated across its live p10, p25, p50, p75, and p90 breakpoints. Equal-valued breakpoints collapse to their mean percentile; values outside p10-p90 extrapolate toward 0 or 100 using the nearest non-flat segment, then clamp to that range. Scores favor the direction shown, then combine by the listed weights. Missing dimensions are removed from both the weighted sum and available weight before normalization.
| Dimension | Weight | Better | p10 | p25 | p50 | p75 | p90 | n |
|---|---|---|---|---|---|---|---|---|
| Annual temperature balance | 25% | Lower | 3.4 | 7.9 | 15.3 | 21 | 25.2 | 6,861 |
| Precipitation balance | 15% | Lower | 2.7 | 7.1 | 14.2 | 20.9 | 25.7 | 6,352 |
| Snowfall burden | 10% | Lower | 0 | 2.1 | 18.9 | 42.7 | 69.8 | 4,098 |
| Frost-free season | 10% | Higher | 127 | 150 | 180 | 215 | 253 | 6,446 |
| Normal heat + freeze calendar | 25% | Lower | 56 | 102 | 145 | 180 | 207 | 6,859 |
| Summer moisture balance | 15% | Lower | 2.7 | 6.1 | 9.3 | 14.8 | 18.4 | 417 |
Grades: A 85–100 · B 70–84 · C 55–69 · D 40–54 · F below 40.
Established ranking Comfort Score: 100/100 · inspect its separate fixed-point formula
This legacy score keeps the rankings stable. It uses annual/seasonal normals only; unlike the Climate Living Index above, it is not percentile-scored per dimension.
- Temperature mildness68.1°F annual mean40/40 points
- Precipitation moderation36.1 inches/year30/30 points
- Snow burden0.0 inches/year15/15 points
- Frost-free seasonNot measuredN/A · weight removed
85/85 available points → 100/100. Full Comfort Score method.
Source: NOAA NCEI U.S. Climate Normals v1.0.1 (1991–2020). This record uses NOAA annual/seasonal normals and NOAA daily multivariate normals; the model also supports hourly normals where published · data updated 2026-08-04. Full methodology and limits.
How Opihihale compares with its closest stations
Against the 6 closest stations in the record, Opihihale averages 68°F a year, warmer than S Kona, HI (67°F) and Mauna Loa, HI (46°F), and cooler than Sea Mtn, HI (75°F) and Ke-ahole Point, HI (77°F). On comfort score it places 1 of 5 in that local group.
Corpus-relative placement
Where Opihihale sits across the climate record
These comparisons place this primary-station normal among station-mapped locations with the same NOAA 1991–2020 fields.
- Annual temperature
- Warmer than 93%
- of 6,861 measured location normals.
- Annual precipitation
- Wetter than 50%
- of 6,352 measured location normals.
- Seasonal temperature swing
- Larger than 0%
- of 6,861 complete location-year normals.
How Opihihale compares across U.S. station-mapped locations
Opihihale's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
100 Top 1% score exceeds 99% of 6,189 station-mapped location scores
- 0–10: 0 station-mapped locations (0%). Below this entry.
- 10–20: 0 station-mapped locations (0%). Below this entry.
- 20–30: 96 station-mapped locations (2%). Below this entry.
- 30–40: 280 station-mapped locations (5%). Below this entry.
- 40–50: 1,113 station-mapped locations (18%). Below this entry.
- 50–60: 1,329 station-mapped locations (21%). Below this entry.
- 60–70: 1,236 station-mapped locations (20%). Below this entry.
- 70–80: 650 station-mapped locations (11%). Below this entry.
- 80–90: 921 station-mapped locations (15%). Below this entry.
- 90–100: 564 station-mapped locations (9%). This entry sits in this band.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Opihihale's measured station temperature trend
MethodologyAcross 43 complete annual observations from 1957 to 2018, OPIHIHALE #2 24.1 warmed at a fitted rate of 0.17°C per decade. The line shows the fitted change relative to its first year, not raw year-to-year temperatures or a forecast.
- Opihihale primary station fitted change +0.17 °C/decade
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 74°F (23°C) | 57°F (14°C) | 66°F (19°C) | 2.4" | 0.0" | 0.0 | 0.0 |
| February | 74°F (23°C) | 57°F (14°C) | 65°F (19°C) | 2.1" | 0.0" | 0.0 | 0.0 |
| March | 74°F (23°C) | 58°F (15°C) | 66°F (19°C) | 3.0" | 0.0" | 0.0 | 0.0 |
| April | 74°F (24°C) | 60°F (15°C) | 67°F (19°C) | 2.5" | 0.0" | 0.0 | 0.0 |
| May | 75°F (24°C) | 61°F (16°C) | 68°F (20°C) | 3.2" | 0.0" | 0.0 | 0.0 |
| June | 75°F (24°C) | 63°F (17°C) | 69°F (21°C) | 2.8" | 0.0" | 0.0 | 0.1 |
| July | 77°F (25°C) | 64°F (18°C) | 70°F (21°C) | 3.3" | 0.0" | 0.0 | 0.0 |
| August | 78°F (26°C) | 64°F (18°C) | 71°F (22°C) | 3.4" | 0.0" | 0.0 | 0.1 |
| September | 77°F (25°C) | 63°F (17°C) | 70°F (21°C) | 4.7" | 0.0" | 0.0 | 0.1 |
| October | 77°F (25°C) | 62°F (17°C) | 70°F (21°C) | 3.7" | 0.0" | 0.0 | 0.0 |
| November | 76°F (24°C) | 61°F (16°C) | 68°F (20°C) | 2.4" | 0.0" | 0.0 | 0.0 |
| December | 75°F (24°C) | 58°F (15°C) | 67°F (19°C) | 2.5" | 0.0" | 0.0 | 0.0 |
The year, day by day
The calendar barely moves in Opihihale: no date carries a normal high of 90°F or a normal low at freezing. The year runs between 57°F near January 24 and 78°F near August 7.
No freezing date
Not one calendar date in the 1991–2020 record carries a normal low at or below 32°F. The coldest normal low of the year is 57°F around January 24.
Where the wet dates fall
The likeliest wet date is June 17, when 53% of years recorded at least a hundredth of an inch. The driest is January 9 at 22%. Summed across the calendar, that is about 148 wet dates a year.
The widest day
January 18 carries the biggest normal gap between afternoon and dawn, 17°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Opihihale.
Where Opihihale Stands Nationally
Among the steadiest day-night climates ranked: even the widest normal daily swing holds to roughly 17°F.
Standing computed against the distribution of 6,860 NOAA 1991–2020 normals stations in the PlainClimate database; only nationally notable standings are shown.
Monthly Precipitation
Average monthly rainfall and snowfall
6.8 days with precipitation
7.8 days with precipitation
12.4 days with precipitation
13.0 days with precipitation
14.6 days with precipitation
16.0 days with precipitation
15.2 days with precipitation
15.1 days with precipitation
15.3 days with precipitation
13.2 days with precipitation
10.2 days with precipitation
8.1 days with precipitation
Opihihale spreads its precipitation across the year
Neither half of the year dominates here: June through August take 26% of the annual total and December through February 20%, with neither reaching the 35% that would mark a distinct wet season. Opihihale has no dry season to plan around, though it does carry an unusually narrow 5.6°F seasonal spread.
The gap between the wettest and driest month still matters: September averages 4.7" and February 2.1". The three wettest months together take 33% of the year, against the 25% a perfectly flat distribution would give them.
Shares are computed from this station's own 1991-2020 monthly precipitation normals. "Spread across the year" means neither the June-August nor the December-February share reaches 35%; it describes an average year, not the variability of any single one.
How Opihihale's precipitation splits across the calendar
About 148 days a year record measurable precipitation here, carrying 36.1" between them, or roughly 0.24 inches on a typical wet day. That sits in the middle band: neither the many-light-days pattern of the Pacific Northwest and the Great Lakes, nor the few-heavy-events pattern of the Gulf and the desert Southwest.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year and say nothing about the heaviest single storm on record.
Opihihale's record shows no measurable snowfall
This station measured snowfall across the 1991-2020 period and recorded none: the annual normal is 0.0 inches. That is a measured zero rather than missing data, which is a meaningful distinction here , most stations in the database simply do not report snow at all, and those pages say nothing about it.
A thirty-year normal of zero describes the typical year at this station. It is not a claim that snow has never fallen in the area.
Frost Dates & Growing Season
First Fall Freeze
N/A
50% probability date
Last Spring Freeze
N/A
50% probability date
Heating & Cooling Degree Days
Annual totals indicate energy demand for heating and cooling
Heating Degree Days
68
Higher = more heating needed
Cooling Degree Days
1,197
Higher = more cooling needed
Warmest Month
August
Coldest Month
February
Places with a similar climate profile
NOAA 1991–2020 annual normals connect this location to non-geographic peers. Temperature peers use annual mean temperature; energy peers use both heating and cooling degree days.
Closest annual-temperature peers
What Opihihale's climate means for you
Opihihale runs 68°F a year - peaking in August, coldest in February.
- Air conditioning drives the bills rather than the furnace: 1,197 cooling degree days against 68 for heating.
- See how Opihihale lines up against the rest of Hawaii and the national rankings. See rankings
Climate Guides
Data-derived climate profile
How Opihihale's climate pattern fits together
cooling led · moderate · low swing
Warm-season load persists through a relatively even calendar in Opihihale. Cooling totals 1,197 degree days, more than double the 68 heating measure, and the 5.6°F seasonal range is compact rather than sharply divided.
Opihihale's 36.1 inches of annual precipitation falls in PlainClimate's middle band, so “wet” or “dry” is not the leading description. Recorded annual snowfall is negligible. Temperature balance and the calendar distribution carry more information than the annual moisture label alone.
Temperature varies within a narrow 5.6°F band across the normal year. August and February mark the typical warm and cold ends of the calendar. The annual average is 68°F. Monthly rows still matter, but they refine a steady profile rather than reveal two climatic extremes.
A frost-free growing-season length is not available for Opihihale. That missing field is kept separate from the observed temperature and precipitation record rather than filled from a regional estimate.
These labels group NOAA 1991-2020 normals from Opihihale's primary station, so the summer figures are a thirty-year average rather than a ceiling: individual years have run hotter and will again. They are descriptive ranges, not an official NOAA classification or a forecast for any specific year.
The year in four calendar signals
- Warmest normal
- August
- Even at its warmest the station only averages 71°F (22°C), so no month here is hot by national standards.
- Coldest normal
- February
- The coldest month still averages 65°F (19°C), above freezing, so this calendar has no hard winter.
- Rainfall rhythm
- September to February
- September is typically wettest; February is driest.
- Mild-temperature window
- January through December
- Monthly means sit between 55°F and 75°F in this window.
Frequently Asked Questions
What is the average temperature in Opihihale, HI? ▼
How much rain does Opihihale get? ▼
What is the comfort score for Opihihale? ▼
How much energy does heating and cooling require in Opihihale? ▼
Where does this Opihihale climate data come from? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Opihihale's primary station: OPIHIHALE #2 24.1 (USC00517166). For informational purposes only.
Place identity: U.S. Census Bureau 2024 Gazetteer places. The conservative exact name-and-state crosswalk finds no Census place match, so PlainClimate treats this as a station-mapped location and does not claim it is a municipality. The reproducible method is an exact normalized name-and-state match; unresolved is an upper bound on facilities because spelling variants can be missed.
Related
Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.