Ewa Kalaeloa, HI Climate: Temperature & Rain by Month
Temperature and precipitation from NOAA NCEI 1991–2020 normals →, plus PlainClimate's derived comfort score
30-year climate normals (1991-2020) from Ewa Kalaeloa's primary NOAA station, EWA KALAELOA AP.
The climate verdict for Ewa Kalaeloa
Ewa Kalaeloa, Hawaii is cooling-led and dry. Its 13.9 inches of annual precipitation pairs with an annual average of 77°F. August is the warmest month at 81°F and January the coldest at 73°F.
- 77°F
- average temperature, NOAA 1991-2020 normal
- 13.9"
- precipitation, annual total
Ewa Kalaeloa: NOAA 1991-2020 normals describe a typical year, not a forecast. Method: /methodology.
Normals record plate
Sheet USW00022551 · Ewa Kalaeloa, HI 77°F mean · 13.9" precip
TEMP-HOT · RANK-WARM · PHOTO-FINISH · PRCP-DRY · SWING-NARROW · COMF-UNK · LOAD-COOL · STN-1 · BOOK-FULL
- TEMP-HOT 77°F
- RANK-WARM #6,792
- PHOTO-FINISH ≈ Ke-ahole Point
- PRCP-DRY 13.9"
- SWING-NARROW 8°F
- COMF-UNK Comfort n/a
- LOAD-COOL 4,396 CDD
- STN-1 USW00022551
- BOOK-FULL 5/6 fields
Nearest mean-temperature peer: Ke-ahole Point, HI ( -0.3 °F mean)
Instrument codes from this station's NOAA 1991–2020 normals, mean temperature, corpus warmth rank, photo-finish peer station, precipitation band, seasonal swing, comfort composite, degree-day load, and field book, not a livability rating.
Mean-temperature neighbourhood
Nationwide NOAA normal poles and nearest peers, not a reprint of every HI station list.
- Ewa Kalaeloa (this station) 77°F
- Cold Kaneohe Bay Mcas, HI 77°F
- Near Ke-ahole Point, HI 77°F
- Near Miami Nwsfo, FL 77°F
- Near Hialeah, FL 77°F
Ewa Kalaeloa 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 Living Index · Ewa Kalaeloa
Ewa Kalaeloa: 71/100 · grade B
Ewa Kalaeloa publishes 3 of 6 Living Index dimensions (NOAA annual/seasonal normals · NOAA daily multivariate normals); 3 missing weights rescale to 100.
PlainClimate-derived for Ewa Kalaeloa, not an official NOAA rating. Breakpoints and limits.
| Dimension | Station value | Score |
|---|---|---|
| Normal heat + freeze calendar | 0 calendar days | 100/100 · A |
| Annual temperature balance | 77.0°F · 9.5° from 67.5°F | 70/100 · B |
| Precipitation balance | 13.9 in · 21.1 from 35 in | 24/100 · F |
Ewa Kalaeloa · 2026-08-04 · NOAA NCEI Climate Normals · method .
Ewa Kalaeloa's normals sit in a dry climate class: BSh
Precipitation is low relative to temperature but above true desert thresholds: hot semi-arid steppe (BSh). Class BSh is the Peel et al. (2007) label for this station's monthly mean temperature and precipitation normals: dry (arid or semi-arid), specifically hot semi-arid steppe.
- Köppen code
- BSh
- Group
- Dry (arid or semi-arid)
- Warmest month
- 81.1°F
- Coldest month
- 72.8°F
Source: official public datasets monthly normals (1991–2020) at the city’s primary station. This is a station classification, not a mapped regional consensus.
National standing · cooling-led station
Where Ewa Kalaeloa sits across the climate record
Three NOAA fields for Ewa Kalaeloa's primary station, temperature, precipitation, and seasonal swing, are ranked against every station-mapped normal that carries the same field.
- Annual temperature
- Top 1% warmest
- Among 6,861 stations, Ewa Kalaeloa sits in the warmer third of annual means.
- Annual precipitation
- Drier than 85%
- Ewa Kalaeloa's annual total ranks in the drier third of 6,352 measured normals.
- Seasonal temperature swing
- Narrower than 99%
- Warmest-to-coldest month gap for Ewa Kalaeloa is compact versus 6,861 complete station-years.
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) | 65°F (18°C) | 73°F (23°C) | 1.4" | 0.0 | 0.0 |
| February | 81°F (27°C) | 65°F (18°C) | 73°F (23°C) | 1.8" | 0.0 | 0.0 |
| March | 82°F (28°C) | 66°F (19°C) | 74°F (23°C) | 1.9" | 0.0 | 0.0 |
| April | 84°F (29°C) | 68°F (20°C) | 76°F (24°C) | 0.6" | 0.0 | 0.0 |
| May | 85°F (29°C) | 69°F (21°C) | 77°F (25°C) | 1.0" | 0.0 | 0.5 |
| June | 87°F (31°C) | 71°F (22°C) | 79°F (26°C) | 0.3" | 0.0 | 2.8 |
| July | 88°F (31°C) | 73°F (23°C) | 80°F (27°C) | 0.3" | 0.0 | 7.3 |
| August | 89°F (32°C) | 73°F (23°C) | 81°F (27°C) | 0.6" | 0.0 | 10.5 |
| September | 89°F (32°C) | 72°F (22°C) | 81°F (27°C) | 0.7" | 0.0 | 7.3 |
| October | 87°F (31°C) | 72°F (22°C) | 80°F (26°C) | 1.3" | 0.0 | 2.7 |
| November | 84°F (29°C) | 69°F (21°C) | 77°F (25°C) | 1.8" | 0.0 | 0.1 |
| December | 82°F (28°C) | 67°F (19°C) | 75°F (24°C) | 2.3" | 0.0 | 0.0 |
The year, day by day
The calendar barely moves in Ewa Kalaeloa: no date carries a normal high of 90°F or a normal low at freezing. The year runs between 65°F near January 15 and 89°F near August 18.
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 65°F around January 15.
Where the wet dates fall
The likeliest wet date is February 14, when 25% of years recorded at least a hundredth of an inch. The driest is July 21 at 11%. Summed across the calendar, that is about 68 wet dates a year.
The widest day
September 5 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 Ewa Kalaeloa.
Where Ewa Kalaeloa Stands Nationally
Among the steadiest day-night climates ranked: even the widest normal daily swing holds to roughly 17°F.
A drier-than-most normal water year — around 14 inches, below what four out of five ranked stations collect.
Ewa Kalaeloa earns 2 nationally notable standings (outer quintiles) against 6,860 NOAA 1991–2020 normals stations; only those extremes render.
Monthly Precipitation
Average monthly rainfall
7.1 days with precipitation
6.5 days with precipitation
7.6 days with precipitation
5.4 days with precipitation
4.8 days with precipitation
3.8 days with precipitation
3.6 days with precipitation
4.1 days with precipitation
5.3 days with precipitation
5.8 days with precipitation
7.0 days with precipitation
6.9 days with precipitation
Ewa Kalaeloa's wet season runs through the cold months
December, January and February carry 39% of the year's precipitation here, while June through August contribute 8%. 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 8.3°F seasonal spread.
- Wettest month
- December, 2.3"
- Driest month
- June, 0.3"
- Wettest three months
- December, March, February (43% 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.
How Ewa Kalaeloa's precipitation splits across the calendar
About 68 days a year record measurable precipitation here, carrying 13.9" 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.
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.
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
4,396
Higher = more cooling needed
Warmest Month
August
Coldest Month
January
Nationwide similar cities
Other rankable U.S. places outside HI closest to Ewa Kalaeloa on two NOAA annual-normal axes (mean temperature and annual precipitation). Chip rows use distinct link sets.
Closest by average temperature
Nearest out-of-state peers by annual mean temperature (77°F here).
- Hialeah, FL 77°F · 0.4°F off
- Miami, FL 77°F · 0.4°F off
- Duck Key, FL 78°F · 0.5°F off
- Brownsville, TX 76°F · 0.8°F off
Closest by annual precipitation
Nearest out-of-state peers by annual precipitation (13.9" here), excluding temperature-peer places.
- Oak City, UT 13.9" · 0.0" off
- Galena, AK 13.9" · 0.0" off
- Gardiner, MT 13.9" · 0.0" off
- College, AK 13.9" · 0.0" off
Scarce-water calendar
Where Ewa Kalaeloa's limited precipitation lands
cooling led · dry · low swing
Warm-season load persists through a relatively even calendar in Ewa Kalaeloa. Cooling totals 4,396 degree days, more than double the 0 heating measure, and the 8.3°F seasonal range is compact rather than sharply divided.
Heat demand sits beside limited local precipitation: Ewa Kalaeloa receives 13.9 inches in a normal year, inside PlainClimate's dry range. Snowfall is not added to the interpretation because its annual value is missing. 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 8.3°F apart, while the annual precipitation total remains below PlainClimate's dry threshold. The annual average is 77°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 Kalaeloa. That missing field is kept separate from the observed temperature and precipitation record rather than filled from a regional estimate.
Ewa Kalaeloa wettest normal
December
December concentrates the scarce annual total (13.9 inches).
Ewa Kalaeloa driest normal
June
June is typically driest; arid stations are defined by when water is absent, not by a four-season grid.
Questions about Ewa Kalaeloa's climate
How dry is Ewa Kalaeloa? ▼
How many days above 90°F does Ewa Kalaeloa get? ▼
How much energy does heating and cooling require in Ewa Kalaeloa? ▼
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). All figures on this page are from Ewa Kalaeloa's primary station: EWA KALAELOA AP (USW00022551). 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. No exact Gazetteer row for Ewa Kalaeloa; facility counts that depend on place identity are therefore an upper bound, not a municipal census.
On this page every temperature, precipitation, and derived score for Ewa Kalaeloa comes from its primary NOAA station record. No figure on this page is typed in by an editor - each value is rendered from NOAA 1991-2020 U.S. Climate Normals. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 1991–2020 normals.