PlainClimate
NOAA 1991–2020 normals 74°F annual avg Public-domain federal data

Waimea Valley, HI Climate

Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score

74°F
Avg annual temp
82/100
Comfort score
52.0"
Annual precip

30-year climate normals from 1 weather station (1991-2020).

The climate verdict for Waimea Valley

Waimea Valley, Hawaii averages 74°F a year and scores 82/100 on the comfort index - excellent, milder than 83% of U.S. cities.

74°F
yearly average temperature, NOAA normal
82/100
comfort score, milder than 83% of U.S. cities
52.0"
yearly precipitation total

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

82/100

Excellent

Climate Comfort Score

82/100

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) 82.0%
National median (63)

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

How Waimea Valley compares to every U.S. city

Waimea Valley's comfort score vs. all U.S. cities

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

82 Top 17% higher than 83% of 6,915 US cities

0–10: 0 US cities (0%). Below this entry. 10–20: 0 US cities (0%). Below this entry. 20–30: 58 US cities (1%). Below this entry. 30–40: 439 US cities (6%). Below this entry. 40–50: 1,302 US cities (19%). Below this entry. 50–60: 1,433 US cities (21%). Below this entry. 60–70: 1,357 US cities (20%). Below this entry. 70–80: 1,102 US cities (16%). Below this entry. 80–90: 778 US cities (11%). This entry sits in this band. 90–100: 420 US cities (6%). Above this entry. This city 0 100 every U.S. city, bucketed by value

Each bar is a band; taller bars hold more US cities. 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.

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

Warming context for Waimea Valley

Methodology

Zooming out from Waimea Valley's own normal, the chart below shows how the U.S. land temperature anomaly has tracked the global mean since 1900 - the most recent decade sits warmer than the 30-year mean shown here.

Warming context, U.S. vs global, with Paris reference lines Anomaly chart from 1900 to 2024. Local series shows warming of 0.11 °C per decade versus a global rate of 0.11 °C per decade (ratio 1.00). Paris Agreement thresholds at 1.5 and 2.0 °C are dashed. -1.0°C -0.5°C +0.0°C +0.5°C +1.0°C +1.5°C +2.0°C +2.5°C Paris 1.5°C Paris 2.0°C 1900192019401960198020002020
  • United States land mean (NOAA NCEI) +0.11 °C/decade
  • Global anomaly (NASA GISTEMP) +0.11 °C/decade
  • Paris Agreement thresholds 1.5°C / 2.0°C
Sources: NOAA NCEI, NASA GISTEMP. Paris thresholds per IPCC AR6 WG1.

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)

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

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

What Waimea Valley's climate means for you

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

  • Energy bills track 4 heating and 3,453 cooling degree days a year, higher means the furnace or AC runs more.
  • Comparing places to live? Line this city up against nearby cities and the national rankings. See rankings

These are 30-year NOAA normals (1991–2020) - the typical year, not a forecast for any specific season.

Climate Guides

Climate Insight: Waimea Valley, HI

The NOAA 1991–2020 climate normals describe Waimea Valley, Hawaii as a location with an annual average temperature of 74°F, ranging from a mean daily high of 82°F to a mean daily low of 67°F. August is typically the warmest month of the year, while January is the coldest. These thirty-year averages, computed from station USC00519603, smooth out year-to-year variability and give a baseline expectation for typical conditions in any given month.

Waimea Valley averages 52.0 inches of precipitation a year, with negligible snowfall, and that matters as much to daily life here as temperature does. Growing-season length varies with elevation and microclimate. As for energy demand, 4 heating degree days and 3,453 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.

On PlainClimate's composite comfort index, Waimea Valley scores 82/100 (Excellent), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. Shoulder seasons bring the mildest highs and lows in the monthly tables above, summer brings August-driven heat, and winter brings January-driven cold - use that rhythm for planning. These figures are thirty-year averages rather than forecasts, so a specific year may still run warmer, cooler, wetter, or drier than what's shown.

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 82/100 (Excellent), milder than 83% of U.S. cities in the PlainClimate database.
When is the growing season in Waimea Valley?
Growing season data is not available for Waimea Valley.
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), from weather station USC00519603 near Waimea Valley.

Data Sources

Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00519603. For informational purposes only.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainClimate Editorial

Every figure on PlainClimate is rendered directly from NOAA 1991-2020 U.S. Climate Normals data, no number is typed in by an editor. This page draws directly on NOAA 1991-2020 U.S. Climate Normals data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.