Manoa Lyon Arbo 785.2, Hawaii climate: Climate normals at a NOAA weather station
Manoa Lyon Arbo 785.2's normal year runs from 63°F January nights to 81°F September afternoons, with 151.0 inches of precipitation a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 22.4°C, January lows of 17°C, September highs of 27°C, 3,834 mm of precipitation a year.
- NOAA stationManoa Lyon Arbo 785.2
- Station IDUSC00516128
- Location21.33°N 157.80°W
- Elevation500 ft (152 m)
On October 14, the normal high in Manoa Lyon Arbo 785.2 is 80°F and the normal low 69°F, and the chance of measurable rain or snow is 81%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Manoa Lyon Arbo 785.2.
- Jan 76° 63°
- Feb 76° 63°
- Mar 76° 64°
- Apr 76° 65°
- May 78° 67°
- Jun 78° 68°
- Jul 79° 70°
- Aug 80° 70°
- Sep 81° 70°
- Oct 80° 69°
- Nov 78° 68°
- Dec 76° 65°
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 Manoa Lyon Arbo 785.2 each month?
September is the warmest month, with normal highs of 81°F; January the coldest, with normal lows of 63°F. The most precipitation falls in July (15.35 in), the least in February (9.14 in).
| Month | High | Low | Mean | Precip. | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|
| January | 76°F | 63°F | 69.6°F | 10.64 | 18 | <1 | <1 | 11 h |
| February | 76°F | 63°F | 69.6°F | 9.14 | 18 | <1 | <1 | 11 h 30 min |
| March | 76°F | 64°F | 69.8°F | 13.74 | 21 | <1 | <1 | 12 h |
| April | 76°F | 65°F | 70.7°F | 12.91 | 24 | <1 | <1 | 12 h 40 min |
| May | 78°F | 67°F | 72.3°F | 9.32 | 23 | <1 | <1 | 13 h 10 min |
| June | 78°F | 68°F | 73.3°F | 12.87 | 26 | <1 | <1 | 13 h 30 min |
| July | 79°F | 70°F | 74.4°F | 15.35 | 28 | <1 | <1 | 13 h 20 min |
| August | 80°F | 70°F | 75.2°F | 12.66 | 27 | <1 | <1 | 12 h 50 min |
| September | 81°F | 70°F | 75.4°F | 12.19 | 25 | <1 | <1 | 12 h 20 min |
| October | 80°F | 69°F | 74.7°F | 12.89 | 25 | <1 | <1 | 11 h 40 min |
| November | 78°F | 68°F | 72.8°F | 15.08 | 24 | <1 | <1 | 11 h 10 min |
| December | 76°F | 65°F | 70.9°F | 14.17 | 23 | <1 | <1 | 10 h 50 min |
| Year (annual) | 78°F | 67°F | 72.4°F | 150.96 | 282 | <1 | <1 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. |
|---|---|---|---|---|
| January | 24°C | 17°C | 20.9°C | 270 mm |
| February | 24°C | 17°C | 20.9°C | 232 mm |
| March | 24°C | 18°C | 21.0°C | 349 mm |
| April | 24°C | 19°C | 21.5°C | 328 mm |
| May | 25°C | 19°C | 22.4°C | 237 mm |
| June | 26°C | 20°C | 22.9°C | 327 mm |
| July | 26°C | 21°C | 23.6°C | 390 mm |
| August | 27°C | 21°C | 24.0°C | 322 mm |
| September | 27°C | 21°C | 24.1°C | 310 mm |
| October | 27°C | 21°C | 23.7°C | 327 mm |
| November | 26°C | 20°C | 22.7°C | 383 mm |
| December | 25°C | 19°C | 21.6°C | 360 mm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00516128; 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 Manoa Lyon Arbo 785.2?
Every month's normal high in Manoa Lyon Arbo 785.2 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 USC00516128.
How hot and how cold does it get at Manoa Lyon Arbo 785.2?
In a normal year in Manoa Lyon Arbo 785.2, a 90°F day is rare, nights almost never fall to freezing and 282 days bring measurable precipitation.
- Days at 90°F or more
- fewer than 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
- 282a normal year
The highest temperature in this station's record (since 1975) is 92°F, on September 4, 1987; the lowest is 49°F, on December 22, 1983.
The wettest calendar year on that record is 1982, with 213.44 in.
Source: NOAA NCEI 1991-2020 annual normals, station USC00516128; records: ACIS (NOAA Regional Climate Centers), station USC00516128. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Manoa Lyon Arbo 785.2?
Over a year 85% of the sunlight that would reach the ground under clear skies gets through the clouds at Manoa Lyon Arbo 785.2, 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 Manoa Lyon Arbo 785.2 record?
A normal year at Manoa Lyon Arbo 785.2 brings 5 heating degree days, 100% fewer than the median U.S. place (5,373), and 2,699 cooling degree days, 3.0 times the median (908). No month reaches 300 heating degree days. For gardens and crops, NOAA counts 8,170 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 2 | 143 |
| February | 1 | 130 |
| March | 1 | 150 |
| April | 0 | 171 |
| May | 0 | 225 |
| June | 0 | 248 |
| July | 0 | 290 |
| August | 0 | 315 |
| September | 0 | 312 |
| October | 0 | 299 |
| November | 0 | 234 |
| December | 0 | 183 |
| Year (annual) | 5 | 2,699 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00516128. 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 Manoa Lyon Arbo 785.2 been warmer than normal?
2025 averaged 73.3°F, 0.9°F above the 1991-2020 normal of 72.4°F. 2 of the 3 complete years since 2022 ran warmer than the normal.
| Year | Mean | Against normal | Precip. |
|---|---|---|---|
| 2022 | 72.7°F | +0.3°F | 111.57 |
| 2024 | 72.3°F | −0.1°F | 137.33 |
| 2025 | 73.3°F | +0.9°F | 125.47 |
Source: observed years: ACIS, station USC00516128. A year counts only with all twelve months complete.
How does Manoa Lyon Arbo 785.2's climate compare?
Manoa Lyon Arbo 785.2 is warmer than 3 of the 18 places with their own NOAA record in Hawaii, and wetter than 17. Across the 7,247 U.S. stations with normals, its annual mean of 72.4°F is warmer than 97%.
In the Köppen classification computed from these normals, Manoa Lyon Arbo 785.2 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 Manoa Lyon Arbo 785.2 share this climate record?
Maunawili has no NOAA station with 1991-2020 normals of its 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.
- Maunawili, HI2,288 people · 3 mi NE
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 Manoa Lyon Arbo 785.2's climate
What is the coldest month at Manoa Lyon Arbo 785.2?
January, with a normal high of 76°F and a normal low of 63°F. The warmest is September (81°F by day, 70°F at night).
Does it snow at Manoa Lyon Arbo 785.2?
Rarely: NOAA's normal is no measurable snow a year.
What is the rainiest month at Manoa Lyon Arbo 785.2?
July, with 15.35 in of precipitation in a normal year; the driest is February with 9.14 in.
What plant hardiness zone is Manoa Lyon Arbo 785.2 in?
The USDA's 2023 map puts Manoa Lyon Arbo 785.2 in zone 12b in ZIP code 96822, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches 56°F (25 years, 1991-2020): zone 12b.
Nearby and next
- Hawaii climateThe statewide normals and every place in the state
- Waikiki 717.2, HI4 miles from this station, 77.6°F a year
- Waimanalo, HI6 miles from this station, 75.8°F a year
- Kaneohe, HI8 miles from this station, 76.6°F a year
- Honolulu, HI8 miles from this station, 78.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made