Climate Comfort Score
67/100
Good
NOAA 1991–2020 normals 78°F annual avg Public-domain federal data
Honolulu, HI Climate
Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score
- 78°F
- Avg annual temp
- 67/100
- Comfort score
- 16.4"
- Annual precip
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Honolulu
Honolulu, Hawaii averages 78°F a year and scores 67/100 on the comfort index - good, milder than 57% of U.S. cities.
- 78°F
- annual average temperature (NOAA normal)
- 67/100
- comfort score, milder than 57% of U.S. cities
- 16.4"
- yearly precipitation total
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
78°F (26°C)
Avg High
85°F
Avg Low
72°F
Annual Precip
16.4"
Comfort Score
67/100
Good
Avg Annual Temperature
78°F
30-year mean (NOAA NCEI)
Annual Precipitation
16.4"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Honolulu) 67.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Honolulu area.
How Honolulu compares to every U.S. city
Honolulu'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 Honolulu
MethodologyZooming out from Honolulu'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.
- 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 | 81°F (27°C) | 67°F (19°C) | 74°F (23°C) | 1.8" | 0.0 | 0.0 |
| February | 81°F (27°C) | 67°F (19°C) | 74°F (23°C) | 1.9" | 0.0 | 0.0 |
| March | 81°F (27°C) | 68°F (20°C) | 75°F (24°C) | 2.4" | 0.0 | 0.0 |
| April | 83°F (28°C) | 70°F (21°C) | 77°F (25°C) | 0.8" | 0.0 | 0.1 |
| May | 85°F (29°C) | 72°F (22°C) | 78°F (26°C) | 0.8" | 0.0 | 0.7 |
| June | 87°F (31°C) | 74°F (23°C) | 80°F (27°C) | 0.5" | 0.0 | 1.7 |
| July | 88°F (31°C) | 75°F (24°C) | 82°F (28°C) | 0.5" | 0.0 | 6.6 |
| August | 89°F (32°C) | 76°F (24°C) | 82°F (28°C) | 0.8" | 0.0 | 10.3 |
| September | 88°F (31°C) | 75°F (24°C) | 82°F (28°C) | 0.9" | 0.0 | 8.7 |
| October | 87°F (31°C) | 74°F (23°C) | 80°F (27°C) | 1.5" | 0.0 | 3.3 |
| November | 84°F (29°C) | 72°F (22°C) | 78°F (26°C) | 2.3" | 0.0 | 0.2 |
| December | 82°F (28°C) | 69°F (21°C) | 76°F (24°C) | 2.2" | 0.0 | 0.0 |
Monthly Precipitation
Average monthly rainfall
January 1.8"
7.7 days with precipitation
February 1.9"
7.6 days with precipitation
March 2.4"
8.7 days with precipitation
April 0.8"
7.5 days with precipitation
May 0.8"
6.0 days with precipitation
June 0.5"
6.3 days with precipitation
July 0.5"
7.3 days with precipitation
August 0.8"
5.7 days with precipitation
September 0.9"
7.2 days with precipitation
October 1.5"
7.7 days with precipitation
November 2.3"
8.6 days with precipitation
December 2.2"
8.9 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
4,767
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 | 71% | 8.6 | 12% | 6% |
| February | 68% | 9.4 | 10% | 6% |
| March | 68% | 10.4 | 7% | 6% |
| April | 66% | 10.4 | 8% | 5% |
| May | 65% | 10.8 | 9% | 2% |
| June | 64% | 11.7 | 6% | 3% |
| July | 64% | 12.2 | 7% | 3% |
| August | 65% | 11.0 | 8% | 2% |
| September | 67% | 9.7 | 10% | 3% |
| October | 70% | 9.2 | 6% | 6% |
| November | 70% | 10.1 | 7% | 7% |
| December | 71% | 8.4 | 10% | 7% |
What Honolulu's climate means for you
Honolulu runs 78°F a year - peaking in August, coldest in January.
- Energy bills track 0 heating and 4,767 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: Honolulu, HI
In Honolulu, Hawaii, the NOAA 1991–2020 climate normals put the annual average temperature at 78°F, ranging from a mean daily high of 85°F to a mean daily low of 72°F. August is typically the warmest month of the year, while January is the coldest. As thirty-year averages computed from station USW00022521, these numbers smooth out year-to-year noise into a working baseline for a typical month.
Honolulu averages 16.4 inches of precipitation a year, predominantly as rainfall, and that matters as much to daily life here as temperature does. Growing-season length varies with elevation and microclimate. As for energy demand, 0 heating degree days and 4,767 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Honolulu 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 Honolulu, HI? ▼
The average annual temperature in Honolulu, Hawaii is 78°F. The warmest month averages 89°F (32°C) and the coldest averages 67°F (19°C).
How much rain does Honolulu get? ▼
Honolulu receives 16.4 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Honolulu? ▼
Honolulu 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 Honolulu? ▼
Growing season data is not available for Honolulu.
How much energy does heating and cooling require in Honolulu? ▼
Honolulu has 0 heating degree days and 4,767 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 Honolulu climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USW00022521 near Honolulu.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USW00022521. 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.