Climate Comfort Score
67/100
Good
NOAA 1991–2020 normals 77°F annual avg Public-domain federal data
Kahului, HI Climate
Explore average temperature, rainfall, and comfort score sourced from NOAA NCEI's 1991–2020 climate normals →
- 77°F
- Avg annual temp
- 67/100
- Comfort score
- 16.2"
- Annual precip
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Kahului
Kahului, Hawaii averages 77°F a year and scores 67/100 on the comfort index - good, milder than 57% of U.S. cities.
- 77°F
- annual average temperature (NOAA normal)
- 67/100
- comfort score, milder than 57% of U.S. cities
- 16.2"
- precipitation, annual total
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
77°F (25°C)
Avg High
86°F
Avg Low
68°F
Annual Precip
16.2"
Comfort Score
67/100
Good
Avg Annual Temperature
77°F
30-year mean (NOAA NCEI)
Annual Precipitation
16.2"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Kahului) 67.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Kahului area.
How Kahului compares to every U.S. city
Kahului's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
67 Top 43% higher than 57% of 6,915 US cities
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 Kahului
MethodologyKahului's NOAA 1991-2020 normal sits inside a longer story: U.S. land temperatures have been tracking (and drifting from) the global mean since 1900, and the chart below shows that spread, with the most recent decade running warmer than the 30-year mean.
- 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
Monthly Temperatures
Average daily high and low temperatures by month
| Month | Avg High | Avg Low | Mean | Precip | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|
| January | 82°F (28°C) | 64°F (18°C) | 73°F (23°C) | 2.4" | 0.0 | 0.0 |
| February | 82°F (28°C) | 64°F (18°C) | 73°F (23°C) | 2.0" | 0.0 | 0.0 |
| March | 83°F (28°C) | 65°F (18°C) | 74°F (23°C) | 2.6" | 0.0 | 0.0 |
| April | 85°F (29°C) | 67°F (19°C) | 76°F (24°C) | 1.3" | 0.0 | 0.3 |
| May | 87°F (30°C) | 68°F (20°C) | 77°F (25°C) | 0.7" | 0.0 | 1.6 |
| June | 88°F (31°C) | 70°F (21°C) | 79°F (26°C) | 0.2" | 0.0 | 3.4 |
| July | 89°F (32°C) | 72°F (22°C) | 81°F (27°C) | 0.5" | 0.0 | 6.5 |
| August | 90°F (32°C) | 72°F (22°C) | 81°F (27°C) | 0.5" | 0.0 | 8.6 |
| September | 90°F (32°C) | 71°F (22°C) | 81°F (27°C) | 0.5" | 0.0 | 9.9 |
| October | 89°F (32°C) | 70°F (21°C) | 79°F (26°C) | 0.8" | 0.0 | 6.6 |
| November | 86°F (30°C) | 68°F (20°C) | 77°F (25°C) | 1.8" | 0.0 | 1.6 |
| December | 83°F (29°C) | 66°F (19°C) | 75°F (24°C) | 2.8" | 0.0 | 0.2 |
Monthly Precipitation
Average monthly rainfall
January 2.4"
8.3 days with precipitation
February 2.0"
9.1 days with precipitation
March 2.6"
10.2 days with precipitation
April 1.3"
8.6 days with precipitation
May 0.7"
6.1 days with precipitation
June 0.2"
4.8 days with precipitation
July 0.5"
7.7 days with precipitation
August 0.5"
7.4 days with precipitation
September 0.5"
5.0 days with precipitation
October 0.8"
6.5 days with precipitation
November 1.8"
9.2 days with precipitation
December 2.8"
10.0 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
0
Higher = more heating needed
Cooling Degree Days
4,423
Higher = more cooling needed
Warmest Month
August
Coldest Month
January
Humidity & Wind
Monthly averages from hourly observations
| Month | Humidity | Wind (mph) | Clear Sky % | Overcast % |
|---|---|---|---|---|
| January | 74% | 10.6 | 29% | 9% |
| February | 72% | 11.0 | 26% | 8% |
| March | 72% | 12.3 | 26% | 9% |
| April | 70% | 12.2 | 25% | 10% |
| May | 69% | 13.1 | 29% | 4% |
| June | 68% | 14.5 | 24% | 4% |
| July | 69% | 14.8 | 25% | 5% |
| August | 69% | 13.6 | 27% | 6% |
| September | 70% | 11.8 | 32% | 5% |
| October | 72% | 11.1 | 31% | 6% |
| November | 73% | 11.6 | 30% | 10% |
| December | 74% | 10.4 | 33% | 8% |
What Kahului's climate means for you
Kahului runs 77°F a year - peaking in August, coldest in January.
- Energy bills track 0 heating and 4,423 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: Kahului, HI
An annual average temperature of 77°F, ranging from a mean daily high of 86°F to a mean daily low of 68°F is what the NOAA 1991–2020 climate normals report for Kahului, Hawaii. August is typically the warmest month of the year, while January is the coldest. That baseline comes from station USW00022516 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.
Rainfall (and snow, where it falls) shapes day-to-day life here as much as temperature does. Kahului sees about 16.2 inches of precipitation a year, predominantly as rainfall. Growing-season length varies with elevation and microclimate. On the energy side, 0 heating degree days and 4,423 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Kahului scores 67/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. For planning purposes, look to the monthly tables above: shoulder seasons bring the mildest highs and lows, summer brings August-driven heat, and deep winter brings January-driven cold. Treat every figure here as a thirty-year average rather than a forecast - individual years routinely run warmer, cooler, wetter, or drier than the normal.
Frequently Asked Questions
What is the average temperature in Kahului, HI? ▼
The average annual temperature in Kahului, Hawaii is 77°F. The warmest month averages 90°F (32°C) and the coldest averages 64°F (18°C).
How much rain does Kahului get? ▼
Kahului receives 16.2 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Kahului? ▼
Kahului has a climate comfort score of 67/100 (Good), milder than 57% of U.S. cities in the PlainClimate database.
When is the growing season in Kahului? ▼
Growing season data is not available for Kahului.
How much energy does heating and cooling require in Kahului? ▼
Kahului has 0 heating degree days and 4,423 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 Kahului climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00022516 near Kahului.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00022516. For informational purposes only.
Read our methodology - how this data is sourced, computed, and verified.
Related
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.