Climate Comfort Score
76/100
Good
NOAA 1991–2020 normals Station-mapped location · no exact Census place match 72°F annual avg Public-domain federal data
Upper Wahiawa, HI Climate: Temperature & Rain by Month
Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →
- 72°F
- Avg annual temp
- 76/100
- Comfort score
- 64.1"
- Annual precip
30-year climate normals (1991-2020) from Upper Wahiawa's primary NOAA station, UPPER WAHIAWA 874.3.
The climate verdict for Upper Wahiawa
Warm-season cooling demand defines Upper Wahiawa, Hawaii, running at more than twice its heating total. The NOAA normal records an annual average of 72°F. It scores 76/100 for composite comfort (good), putting it in the most temperate third of station-mapped US locations, milder than 69% of them.
- 72°F
- yearly average temperature, NOAA normal
- 76/100
- comfort score, milder than 69% of station-mapped locations
- 64.1"
- precipitation, annual total
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
72°F (22°C)
Avg High
79°F
Avg Low
65°F
Annual Precip
64.1"
Annual Snow
0.0"
Comfort Score
76/100
Good
Upper Wahiawa 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
Avg Annual Temperature
72°F
30-year mean (NOAA NCEI)
Annual Precipitation
64.1"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Upper Wahiawa) 76.0%
National median (64)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Upper Wahiawa area.
How Upper Wahiawa compares with its closest stations
Against the 6 closest stations in the record, Upper Wahiawa averages 72°F a year, warmer than Puu Manawahua, HI (71°F), and cooler than Poamoho Exp FM, HI (73°F) and Waimea Valley, HI (74°F). On comfort score it places 2 of 5 in that local group.
Corpus-relative placement
Where Upper Wahiawa 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 97%
- of 6,861 measured location normals.
- Annual precipitation
- Wetter than 97%
- of 6,352 measured location normals.
- Seasonal temperature swing
- Larger than 0%
- of 6,861 complete location-year normals.
How Upper Wahiawa compares across U.S. station-mapped locations
Upper Wahiawa's comfort score vs. all station-mapped locations
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
76 Top 31% milder than 69% of 6,189 station-mapped locations
- 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%). This entry sits in this band.
- 80–90: 921 station-mapped locations (15%). Above this entry.
- 90–100: 564 station-mapped locations (9%). Above this entry.
Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 76°F (25°C) | 61°F (16°C) | 69°F (20°C) | 5.2" | 0.0" | 0.0 | 0.0 |
| February | 76°F (24°C) | 60°F (16°C) | 68°F (20°C) | 4.3" | 0.0" | 0.0 | 0.0 |
| March | 77°F (25°C) | 62°F (17°C) | 69°F (21°C) | 6.3" | 0.0" | 0.0 | 0.0 |
| April | 77°F (25°C) | 63°F (17°C) | 70°F (21°C) | 5.6" | 0.0" | 0.0 | 0.0 |
| May | 79°F (26°C) | 65°F (18°C) | 72°F (22°C) | 4.3" | 0.0" | 0.0 | 0.1 |
| June | 80°F (27°C) | 67°F (19°C) | 73°F (23°C) | 4.2" | 0.0" | 0.0 | 0.0 |
| July | 82°F (28°C) | 67°F (20°C) | 74°F (24°C) | 5.2" | 0.0" | 0.0 | 0.1 |
| August | 83°F (28°C) | 68°F (20°C) | 76°F (24°C) | 4.0" | 0.0" | 0.0 | 0.2 |
| September | 83°F (28°C) | 67°F (20°C) | 75°F (24°C) | 4.6" | 0.0" | 0.0 | 0.1 |
| October | 82°F (28°C) | 66°F (19°C) | 74°F (23°C) | 5.8" | 0.0" | 0.0 | 0.1 |
| November | 79°F (26°C) | 65°F (18°C) | 72°F (22°C) | 7.1" | 0.0" | 0.0 | 0.0 |
| December | 77°F (25°C) | 63°F (17°C) | 70°F (21°C) | 7.5" | 0.0" | 0.0 | 0.0 |
The year, day by day
The calendar barely moves in Upper Wahiawa: no date carries a normal high of 90°F or a normal low at freezing. The year runs between 60°F near February 6 and 83°F near September 4.
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 60°F around February 6.
Where the wet dates fall
The likeliest wet date is June 29, when 76% of years recorded at least a hundredth of an inch. The driest is February 19 at 52%. Summed across the calendar, that is about 237 wet dates a year.
The widest day
January 27 carries the biggest normal gap between afternoon and dawn, 16°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Upper Wahiawa.
Where Upper Wahiawa Stands Nationally
This is one of the wettest normals climates ranked: about 64 inches of precipitation in a normal year, a total fewer than one station in ten surpasses.
Among the steadiest day-night climates ranked: even the widest normal daily swing holds to roughly 16°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
January 5.2"
17.1 days with precipitation
February 4.3"
14.9 days with precipitation
March 6.3"
17.3 days with precipitation
April 5.6"
21.8 days with precipitation
May 4.3"
17.6 days with precipitation
June 4.2"
22.1 days with precipitation
July 5.2"
22.8 days with precipitation
August 4.0"
20.0 days with precipitation
September 4.6"
18.9 days with precipitation
October 5.8"
22.1 days with precipitation
November 7.1"
21.8 days with precipitation
December 7.5"
20.3 days with precipitation
Upper Wahiawa spreads its precipitation across the year
Neither half of the year dominates here: June through August take 21% of the annual total and December through February 27%, with neither reaching the 35% that would mark a distinct wet season. Upper Wahiawa has no dry season to plan around, though it does carry an unusually narrow 7.5°F seasonal spread.
The gap between the wettest and driest month still matters: December averages 7.5" and August 4.0". 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 Upper Wahiawa's precipitation splits across the calendar
About 237 days a year record measurable precipitation here, carrying 64.1" between them, or roughly 0.27 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.
Wet days a year
237
Wettest month by days
July
Driest month by days
February
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.
Upper Wahiawa'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
12
Higher = more heating needed
Cooling Degree Days
2,522
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 Upper Wahiawa's climate means for you
Upper Wahiawa runs 72°F a year - peaking in August, coldest in February.
- Air conditioning drives the bills rather than the furnace: 2,522 cooling degree days against 12 for heating.
- See how Upper Wahiawa lines up against the rest of Hawaii and the national rankings. See rankings
Climate Guides
Data-derived climate profile
How Upper Wahiawa's climate pattern fits together
cooling led · wet · low swing
Warm-season load persists through a relatively even calendar in Upper Wahiawa. Cooling totals 2,522 degree days, more than double the 12 heating measure, and the 7.5°F seasonal range is compact rather than sharply divided.
Warm-season demand is paired with a wet annual normal: 64.1 inches of precipitation at Upper Wahiawa. Recorded annual snowfall is negligible. The month-by-month bars distinguish a concentrated wet season from moisture spread across the calendar.
Upper Wahiawa's 7.5°F seasonal spread is compact even though precipitation is abundant. August and February mark the typical warm and cold ends of the calendar. The annual average is 72°F. Temperature is relatively steady; the monthly rows show how rain and snow observations vary across the calendar.
A frost-free growing-season length is not available for Upper Wahiawa. 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 Upper Wahiawa'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
- The month averages 76°F (24°C), a middling summer peak by national standards rather than an extreme one.
- Coldest normal
- February
- The coldest month still averages 68°F (20°C), above freezing, so this calendar has no hard winter.
- Rainfall rhythm
- December to August
- December is typically wettest; August 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 Upper Wahiawa, HI? ▼
The average annual temperature in Upper Wahiawa, Hawaii is 72°F. The warmest month averages 83°F (28°C) and the coldest averages 60°F (16°C).
How much rain does Upper Wahiawa get? ▼
Upper Wahiawa receives 64.1 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Upper Wahiawa? ▼
Upper Wahiawa has a climate comfort score of 76/100 (Good), milder than 69% of station-mapped locations in the PlainClimate database.
How much energy does heating and cooling require in Upper Wahiawa? ▼
Upper Wahiawa has 12 heating degree days and 2,522 cooling degree days annually, a cooling-dominated climate. See our <a href="/guides/reading-weather-data" class="underline hover:text-brand-600">guide to reading weather data</a> for what these figures mean.
Where does this Upper Wahiawa climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020). Figures on this page come from Upper Wahiawa's primary NOAA station (UPPER WAHIAWA 874.3, USC00518838).
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Upper Wahiawa's primary station: UPPER WAHIAWA 874.3 (USC00518838). 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
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate
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.