PlainClimate
NOAA 1991–2020 normals Station-mapped location · no exact Census place match 74°F annual avg Public-domain federal data

Waimea Valley, HI Climate: Temperature & Rain by Month

Temperature, precipitation, and comfort score from NOAA NCEI 1991–2020 normals →

74°F
Avg annual temp
88/100
Comfort score
52.0"
Annual precip

30-year climate normals (1991-2020) from Waimea Valley's primary NOAA station, WAIMEA VALLEY 892.2.

The climate verdict for Waimea Valley

Warm-season cooling demand defines Waimea Valley, Hawaii, running at more than twice its heating total. The NOAA normal records an annual average of 74°F. It scores 88/100 for composite comfort (excellent), putting it in the most temperate third of station-mapped US locations, milder than 89% of them.

74°F
average temperature, NOAA 1991-2020 normal
88/100
comfort score, milder than 89% of station-mapped locations
52.0"
annual precipitation

Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.

Avg Temperature

74°F (24°C)

Avg High

82°F

Avg Low

67°F

Annual Precip

52.0"

Annual Snow

0.0"

Comfort Score

88/100

Excellent

Waimea Valley 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 Comfort Score

88/100

Excellent

Avg Annual Temperature

74°F

30-year mean (NOAA NCEI)

Annual Precipitation

52.0"

Liquid-equivalent total

Comfort score vs national 100-point ceiling (Waimea Valley) 88.0%
National median (64)

PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Excellent for the Waimea Valley area.

How Waimea Valley compares with its closest stations

Against the 6 closest stations in the record, Waimea Valley averages 74°F a year, warmer than Poamoho Exp FM, HI (73°F) and Upper Wahiawa, HI (72°F), and cooler than Kii-kahuku, HI (75°F) and Kapaka Farm, HI (76°F). On comfort score it places 2 of 5 in that local group.

Corpus-relative placement

Where Waimea Valley 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 98%
of 6,861 measured location normals.
Annual precipitation
Wetter than 85%
of 6,352 measured location normals.
Seasonal temperature swing
Larger than 1%
of 6,861 complete location-year normals.

How Waimea Valley compares across U.S. station-mapped locations

Waimea Valley's comfort score vs. all station-mapped locations

PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals

88 Top 11% milder than 89% 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%). Below this entry. 80–90: 921 station-mapped locations (15%). This entry sits in this band. 90–100: 564 station-mapped locations (9%). Above this entry. This location 0 100 every station-mapped location, bucketed by value
  1. 0–10: 0 station-mapped locations (0%). Below this entry.
  2. 10–20: 0 station-mapped locations (0%). Below this entry.
  3. 20–30: 96 station-mapped locations (2%). Below this entry.
  4. 30–40: 280 station-mapped locations (5%). Below this entry.
  5. 40–50: 1,113 station-mapped locations (18%). Below this entry.
  6. 50–60: 1,329 station-mapped locations (21%). Below this entry.
  7. 60–70: 1,236 station-mapped locations (20%). Below this entry.
  8. 70–80: 650 station-mapped locations (11%). Below this entry.
  9. 80–90: 921 station-mapped locations (15%). This entry sits in this band.
  10. 90–100: 564 station-mapped locations (9%). Above this entry.

Source NOAA U.S. Climate Normals, PlainClimate comfort index · 1991–2020

Each bar is a band; taller bars hold more station-mapped locations. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Monthly Temperatures

Average daily high and low temperatures by month

Month Avg High Avg Low Mean
January 78°F (26°C) 62°F (17°C) 70°F (21°C)
February 79°F (26°C) 62°F (17°C) 70°F (21°C)
March 79°F (26°C) 64°F (18°C) 72°F (22°C)
April 81°F (27°C) 65°F (19°C) 73°F (23°C)
May 83°F (28°C) 67°F (19°C) 75°F (24°C)
June 84°F (29°C) 69°F (21°C) 77°F (25°C)
July 85°F (30°C) 70°F (21°C) 78°F (25°C)
August 86°F (30°C) 70°F (21°C) 78°F (26°C)
September 86°F (30°C) 70°F (21°C) 78°F (26°C)
October 84°F (29°C) 69°F (20°C) 77°F (25°C)
November 81°F (27°C) 67°F (19°C) 74°F (23°C)
December 79°F (26°C) 65°F (18°C) 72°F (22°C)

The year, day by day

The calendar barely moves in Waimea Valley: no date carries a normal high of 90°F or a normal low at freezing. The year runs between 62°F near January 24 and 87°F near August 19.

Normal daily high and low temperature for Waimea Valley, January through December Peaks 87°F around August 19. Bottoms 62°F around January 24. 55 60 65 70 75 80 85 90 95 JanFebMarAprMayJunJulAugSepOctNovDec
Normal daily high and low across the calendar year. NOAA 1991–2020 daily normals, WAIMEA VALLEY 892.2.

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 62°F around January 24.

Where the wet dates fall

The likeliest wet date is November 29, when 80% of years recorded at least a hundredth of an inch. The driest is February 14 at 61%. Summed across the calendar, that is about 259 wet dates a year.

The widest day

May 14 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 Waimea Valley.

Where Waimea Valley Stands Nationally

Among the steadiest day-night climates ranked: even the widest normal daily swing holds to roughly 17°F.

The normal water year runs well above the national norm at roughly 52 inches.

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 4.7"

19.2 days with precipitation

February 4.0"

17.3 days with precipitation

March 5.6"

20.9 days with precipitation

April 4.2"

21.2 days with precipitation

May 3.6"

19.4 days with precipitation

June 3.5"

22.7 days with precipitation

July 3.9"

24.3 days with precipitation

August 3.2"

22.6 days with precipitation

September 3.3"

21.1 days with precipitation

October 4.4"

22.7 days with precipitation

November 6.1"

23.7 days with precipitation

December 5.5"

24.7 days with precipitation

Waimea Valley 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. Waimea Valley has no dry season to plan around, though it does carry an unusually narrow 8.2°F seasonal spread.

The gap between the wettest and driest month still matters: November averages 6.1" and August 3.2". 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 Waimea Valley's precipitation splits across the calendar

About 260 days a year record measurable precipitation here, carrying 52.0" between them, or roughly 0.20 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
260
Wettest month by days
December
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.

Waimea Valley'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

4

Higher = more heating needed

Cooling Degree Days

3,453

Higher = more cooling needed

Warmest Month

August

Coldest Month

January

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.

What Waimea Valley's climate means for you

Waimea Valley runs 74°F a year - peaking in August, coldest in January.

  • Air conditioning drives the bills rather than the furnace: 3,453 cooling degree days against 4 for heating.
  • See how Waimea Valley lines up against the rest of Hawaii and the national rankings. See rankings

Climate Guides

Data-derived climate profile

How Waimea Valley's climate pattern fits together

cooling led · wet · low swing

Warm-season load persists through a relatively even calendar in Waimea Valley. Cooling totals 3,453 degree days, more than double the 4 heating measure, and the 8.2°F seasonal range is compact rather than sharply divided.

Warm-season demand is paired with a wet annual normal: 52.0 inches of precipitation at Waimea Valley. Recorded annual snowfall is negligible. The month-by-month bars distinguish a concentrated wet season from moisture spread across the calendar.

Waimea Valley's 8.2°F seasonal spread is compact even though precipitation is abundant. August and January mark the typical warm and cold ends of the calendar. The annual average is 74°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 Waimea Valley. 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 Waimea Valley'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
At 78°F (26°C) this is a genuinely hot month, in the top third of US stations, and the daily average understates afternoon highs.
Coldest normal
January
The coldest month still averages 70°F (21°C), above freezing, so this calendar has no hard winter.
Rainfall rhythm
November to August
November 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 Waimea Valley, HI?
The average annual temperature in Waimea Valley, Hawaii is 74°F. The warmest month averages 86°F (30°C) and the coldest averages 62°F (17°C).
How much rain does Waimea Valley get?
Waimea Valley receives 52.0 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Waimea Valley?
Waimea Valley has a climate comfort score of 88/100 (Excellent), milder than 89% of station-mapped locations in the PlainClimate database.
How much energy does heating and cooling require in Waimea Valley?
Waimea Valley has 4 heating degree days and 3,453 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 Waimea Valley climate data come from?
NOAA U.S. Climate Normals v1.0.1 (1991-2020). Figures on this page come from Waimea Valley's primary NOAA station (WAIMEA VALLEY 892.2, USC00519603).

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Waimea Valley's primary station: WAIMEA VALLEY 892.2 (USC00519603). 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.

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.