Climate Comfort Score
76/100
Good
NOAA 1991–2020 normals Station-mapped location · no exact Census place match 75°F annual avg Public-domain federal data
Ewa Beach Usgs, HI Climate: Temperature & Rain by Month
Pulled from NOAA NCEI 1991–2020 normals →: average temperature, precipitation, and comfort score
- 75°F
- Avg annual temp
- 76/100
- Comfort score
- 17.1"
- Annual precip
30-year climate normals (1991-2020) from Ewa Beach Usgs's primary NOAA station, EWA BEACH USGS 702.2.
The climate verdict for Ewa Beach Usgs
Ewa Beach Usgs, Hawaii is cooling-led and dry. Its 17.1 inches of annual precipitation pairs with an annual average of 75°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.
- 75°F
- average temperature, NOAA 1991-2020 normal
- 76/100
- comfort score, milder than 69% of station-mapped locations
- 17.1"
- yearly precipitation total
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
75°F (24°C)
Avg High
84°F
Avg Low
67°F
Annual Precip
17.1"
Annual Snow
0.0"
Comfort Score
76/100
Good
Ewa Beach Usgs 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
75°F
30-year mean (NOAA NCEI)
Annual Precipitation
17.1"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Ewa Beach Usgs) 76.0%
National median (64)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Ewa Beach Usgs area.
How Ewa Beach Usgs compares with its closest stations
Against the 6 closest stations in the record, Ewa Beach Usgs averages 75°F a year, warmer than Puu Manawahua, HI (71°F) and Upper Wahiawa, HI (72°F), and cooler than Ewa Kalaeloa, HI (77°F) and Honolulu, HI (78°F). On comfort score it places 2 of 4 in that local group.
Corpus-relative placement
Where Ewa Beach Usgs 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 99%
- of 6,861 measured location normals.
- Annual precipitation
- Wetter than 22%
- of 6,352 measured location normals.
- Seasonal temperature swing
- Larger than 1%
- of 6,861 complete location-year normals.
How Ewa Beach Usgs compares across U.S. station-mapped locations
Ewa Beach Usgs'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 | 80°F (27°C) | 62°F (17°C) | 71°F (22°C) | 1.8" | 0.0" | 0.0 | 0.0 |
| February | 80°F (27°C) | 63°F (17°C) | 71°F (22°C) | 1.7" | 0.0" | 0.0 | 0.0 |
| March | 81°F (27°C) | 64°F (18°C) | 72°F (22°C) | 2.7" | 0.0" | 0.0 | 0.0 |
| April | 82°F (28°C) | 66°F (19°C) | 74°F (23°C) | 0.8" | 0.0" | 0.0 | 0.0 |
| May | 84°F (29°C) | 67°F (19°C) | 75°F (24°C) | 1.0" | 0.0" | 0.0 | 0.1 |
| June | 86°F (30°C) | 69°F (21°C) | 77°F (25°C) | 0.4" | 0.0" | 0.0 | 1.0 |
| July | 87°F (30°C) | 71°F (21°C) | 79°F (26°C) | 0.5" | 0.0" | 0.0 | 2.7 |
| August | 87°F (31°C) | 71°F (22°C) | 79°F (26°C) | 0.8" | 0.0" | 0.0 | 4.6 |
| September | 87°F (31°C) | 70°F (21°C) | 78°F (26°C) | 0.8" | 0.0" | 0.0 | 4.5 |
| October | 86°F (30°C) | 69°F (21°C) | 77°F (25°C) | 1.7" | 0.0" | 0.0 | 1.3 |
| November | 84°F (29°C) | 67°F (19°C) | 75°F (24°C) | 2.2" | 0.0" | 0.0 | 0.0 |
| December | 81°F (27°C) | 65°F (18°C) | 73°F (23°C) | 2.6" | 0.0" | 0.0 | 0.0 |
The year, day by day
The calendar barely moves in Ewa Beach Usgs: no date carries a normal high of 90°F or a normal low at freezing. The year runs between 62°F near January 15 and 88°F near August 19.
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 15.
Where the wet dates fall
The likeliest wet date is December 23, when 31% of years recorded at least a hundredth of an inch. The driest is August 17 at 15%. Summed across the calendar, that is about 87 wet dates a year.
The widest day
January 15 carries the biggest normal gap between afternoon and dawn, 18°F between the normal high and the normal low.
Look up any date
Any date's 1991–2020 normal for Ewa Beach Usgs.
Where Ewa Beach Usgs Stands Nationally
Among the steadiest day-night climates ranked: even the widest normal daily swing holds to roughly 18°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 1.8"
9.5 days with precipitation
February 1.7"
7.6 days with precipitation
March 2.7"
9.1 days with precipitation
April 0.8"
6.7 days with precipitation
May 1.0"
5.8 days with precipitation
June 0.4"
5.6 days with precipitation
July 0.5"
6.5 days with precipitation
August 0.8"
4.4 days with precipitation
September 0.8"
5.5 days with precipitation
October 1.7"
7.2 days with precipitation
November 2.2"
9.0 days with precipitation
December 2.6"
9.5 days with precipitation
Ewa Beach Usgs's wet season runs through the cold months
December, January and February carry 36% of the year's precipitation here, while June through August contribute 10%. That is the cool-season-dominant pattern of the West Coast and the higher inland West, where storm tracks swing south in winter and summer turns dry; the thermometer meanwhile shows an unusually narrow 8.2°F seasonal spread.
- Wettest month
- March, 2.7"
- Driest month
- June, 0.4"
- Wettest three months
- March, December, November (44% of the year)
Shares are computed from this station's own 1991-2020 monthly precipitation normals. A cool-season label means the December-February share reaches 35%. Where snow falls, the monthly figures above report liquid-equivalent precipitation, so a wet winter month is not necessarily a rainy one.
Ewa Beach Usgs is dry, and what does fall arrives gently
Only about 86 days a year record measurable precipitation here, 24% of the calendar, and they carry 17.1" between them. At roughly 0.20 inches on an average wet day, this is not the damp drizzle of a marine climate; it is an arid record in which precipitation is both uncommon and light when it appears.
The wettest month by count is January at about 10 wet days; the driest is August at about 4.
A low per-event average in a dry record is a statement about typical days only. Arid regions can still take a large share of a year's total from a single convective storm, which a normal cannot show.
A wet day is one recording at least 0.01 inches. These are 1991-2020 normals: they describe an average year, not the extremes within it.
Ewa Beach Usgs'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
1
Higher = more heating needed
Cooling Degree Days
3,754
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.
Closest annual-temperature peers
What Ewa Beach Usgs's climate means for you
Ewa Beach Usgs runs 75°F a year - peaking in August, coldest in January.
- Air conditioning drives the bills rather than the furnace: 3,754 cooling degree days against 1 for heating.
- See how Ewa Beach Usgs lines up against the rest of Hawaii and the national rankings. See rankings
Climate Guides
Data-derived climate profile
How Ewa Beach Usgs's climate pattern fits together
cooling led · dry · low swing
Warm-season load persists through a relatively even calendar in Ewa Beach Usgs. Cooling totals 3,754 degree days, more than double the 1 heating measure, and the 8.2°F seasonal range is compact rather than sharply divided.
Heat demand sits beside limited local precipitation: Ewa Beach Usgs receives 17.1 inches in a normal year, inside PlainClimate's dry range. Recorded annual snowfall is negligible. Month-level precipitation is the useful check on when that small annual total arrives.
The calendar stays thermally compact and dry. August and January mark the typical warm and cold ends of the calendar, only 8.2°F apart, while the annual precipitation total remains below PlainClimate's dry threshold. The annual average is 75°F. The monthly rows show whether that limited precipitation is spread through the year or concentrated in a shorter interval.
A frost-free growing-season length is not available for Ewa Beach Usgs. 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 Ewa Beach Usgs'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 79°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 71°F (22°C), above freezing, so this calendar has no hard winter.
- Rainfall rhythm
- March to June
- March is typically wettest; June 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 Ewa Beach Usgs, HI? ▼
The average annual temperature in Ewa Beach Usgs, Hawaii is 75°F. The warmest month averages 87°F (31°C) and the coldest averages 62°F (17°C).
How much rain does Ewa Beach Usgs get? ▼
Ewa Beach Usgs receives 17.1 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Ewa Beach Usgs? ▼
Ewa Beach Usgs 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 Ewa Beach Usgs? ▼
Ewa Beach Usgs has 1 heating degree days and 3,754 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 Ewa Beach Usgs climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020). Figures on this page come from Ewa Beach Usgs's primary NOAA station (EWA BEACH USGS 702.2, USC00511918).
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Ewa Beach Usgs's primary station: EWA BEACH USGS 702.2 (USC00511918). 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.