Waihee 837.5, Hawaii climate: Climate normals at a NOAA weather station
Waihee 837.5's normal year runs from 64°F February nights to 84°F August afternoons, with 76.2 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 23.5°C, February lows of 18°C, August highs of 29°C, 1,935 mm of precipitation a year.
- NOAA stationWaihee 837.5
- Station IDUSC00519281
- Location21.45°N 157.85°W
- Elevation108 ft (33 m)
On October 14, the normal high in Waihee 837.5 is 82°F and the normal low 70°F, and the chance of measurable rain or snow is 75%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Waihee 837.5.
- Jan 78° 64°
- Feb 77° 64°
- Mar 77° 65°
- Apr 79° 67°
- May 81° 68°
- Jun 83° 71°
- Jul 83° 72°
- Aug 84° 72°
- Sep 84° 71°
- Oct 82° 70°
- Nov 80° 69°
- Dec 78° 67°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Waihee 837.5 each month?
August is the warmest month, with normal highs of 84°F; February the coldest, with normal lows of 64°F. The most precipitation falls in March (9.02 in), the least in June (4.35 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 78°F | 64°F | 70.9°F | 6.22 | 18 | <1 | <1 | 11 h |
| February | 77°F | 64°F | 70.4°F | 7.42 | 17 | <1 | <1 | 11 h 30 min |
| March | 77°F | 65°F | 71.1°F | 9.02 | 20 | <1 | <1 | 12 h |
| April | 79°F | 67°F | 73.1°F | 5.52 | 21 | <1 | <1 | 12 h 40 min |
| May | 81°F | 68°F | 74.3°F | 4.91 | 20 | <1 | <1 | 13 h 10 min |
| June | 83°F | 71°F | 76.7°F | 4.35 | 23 | <1 | <1 | 13 h 30 min |
| July | 83°F | 72°F | 77.4°F | 4.68 | 24 | <1 | <1 | 13 h 20 min |
| August | 84°F | 72°F | 78.1°F | 5.43 | 23 | <1 | <1 | 12 h 50 min |
| September | 84°F | 71°F | 77.5°F | 6.42 | 22 | <1 | <1 | 12 h 20 min |
| October | 82°F | 70°F | 76.1°F | 7.15 | 23 | <1 | <1 | 11 h 40 min |
| November | 80°F | 69°F | 74.3°F | 8.00 | 22 | <1 | <1 | 11 h 10 min |
| December | 78°F | 67°F | 72.2°F | 7.07 | 22 | <1 | <1 | 10 h 50 min |
| Year (annual) | 80°F | 68°F | 74.3°F | 76.19 | 255 | 1 | <1 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 25°C | 18°C | 21.6°C | 158 mm |
| February | 25°C | 18°C | 21.3°C | 188 mm |
| March | 25°C | 18°C | 21.7°C | 229 mm |
| April | 26°C | 19°C | 22.8°C | 140 mm |
| May | 27°C | 20°C | 23.5°C | 125 mm |
| June | 28°C | 22°C | 24.8°C | 110 mm |
| July | 28°C | 22°C | 25.2°C | 119 mm |
| August | 29°C | 22°C | 25.6°C | 138 mm |
| September | 29°C | 22°C | 25.3°C | 163 mm |
| October | 28°C | 21°C | 24.5°C | 182 mm |
| November | 27°C | 21°C | 23.5°C | 203 mm |
| December | 25°C | 19°C | 22.3°C | 180 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00519281; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
Which months are mildest at Waihee 837.5?
Every month's normal high in Waihee 837.5 falls between 65°F and 85°F.
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00519281.
How hot and how cold does it get at Waihee 837.5?
In a normal year in Waihee 837.5, 1 day a year reaches 90°F, nights almost never fall to freezing and 255 days bring measurable precipitation.
- Days at 90°F or more
- 1a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- fewer than 1a normal year
- Days that stay below freezing
- fewer than 1high of 32°F or less
- Days with 0.01 inch of precipitation
- 255a normal year
Source: NOAA NCEI 1991-2020 annual normals, station USC00519281.
How sunny is it at Waihee 837.5?
Over a year 85% of the sunlight that would reach the ground under clear skies gets through the clouds at Waihee 837.5, 5.7 kWh per square metre a day. June is the sunniest month (88%) and March the cloudiest (79%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 82% | 4.3 |
| February | 81% | 4.8 |
| March | 79% | 5.5 |
| April | 83% | 6.3 |
| May | 86% | 6.8 |
| June | 88% | 7.1 |
| July | 88% | 7.0 |
| August | 87% | 6.7 |
| September | 88% | 6.2 |
| October | 84% | 5.2 |
| November | 82% | 4.3 |
| December | 81% | 3.9 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How many heating and cooling degree days does Waihee 837.5 record?
A normal year at Waihee 837.5 brings 2 heating degree days, 100% fewer than the median U.S. place (5,373), and 3,421 cooling degree days, 3.8 times the median (908). No month reaches 300 heating degree days. For gardens and crops, NOAA counts 8,894 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 0 | 185 |
| February | 1 | 154 |
| March | 1 | 190 |
| April | 0 | 245 |
| May | 0 | 287 |
| June | 0 | 351 |
| July | 0 | 384 |
| August | 0 | 405 |
| September | 0 | 375 |
| October | 0 | 346 |
| November | 0 | 279 |
| December | 0 | 222 |
| Year (annual) | 2 | 3,421 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00519281. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Have recent years at Waihee 837.5 been warmer than normal?
2024 averaged 75.2°F, 0.9°F above the 1991-2020 normal of 74.3°F. 2 of the 2 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 74.6°F | +0.3°F | 83.29 |
| 2024 | 75.2°F | +0.9°F | 67.99 |
Source: observed years: ACIS, station USC00519281. A year counts only with all twelve months complete.
How does Waihee 837.5's climate compare?
Waihee 837.5 is warmer than 6 of the 18 places with their own NOAA record in Hawaii, and wetter than 15. Across the 7,247 U.S. stations with normals, its annual mean of 74.3°F is warmer than 98%.
In the Köppen classification computed from these normals, Waihee 837.5 is Af: tropical rainforest. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Waihee 837.5 share this climate record?
4 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Ahuimanu, HI8,520 people · 1 mi SE
- Kahaluu, HI5,282 people · 1 mi NE
- Heeia, HI5,099 people · 3 mi SE
- Waiahole-Waikane, HI879 people · 3 mi N
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Waihee 837.5's climate
What is the coldest month at Waihee 837.5?
February, with a normal high of 77°F and a normal low of 64°F. The warmest is August (84°F by day, 72°F at night).
Does it snow at Waihee 837.5?
Rarely: NOAA's normal is no measurable snow a year.
What is the rainiest month at Waihee 837.5?
March, with 9.02 in of precipitation in a normal year; the driest is June with 4.35 in.
What plant hardiness zone is Waihee 837.5 in?
The USDA's 2023 map puts Waihee 837.5 in zone 12b in ZIP code 96744, the nearest ZIP area.
Nearby and next
- Hawaii climateThe statewide normals and every place in the state
- Kaneohe, HI4 miles from this station, 76.6°F a year
- Manoa Lyon Arbo 785.2, HI9 miles from this station, 72.4°F a year
- Honolulu, HI10 miles from this station, 78.0°F a year
- Wahiawa, HI11 miles from this station, 71.9°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made