Climate Comfort Score
72/100
Good
NOAA 1991–2020 normals 72°F annual avg Public-domain federal data
Upper Wahiawa, HI Climate
Annual temperature, rainfall, and a comfort score, sourced from NOAA NCEI's 1991–2020 normals →
- 72°F
- Avg annual temp
- 72/100
- Comfort score
- 64.1"
- Annual precip
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Upper Wahiawa
Upper Wahiawa, Hawaii averages 72°F a year and scores 72/100 on the comfort index - good, milder than 66% of U.S. cities.
- 72°F
- average temperature, NOAA 1991-2020 normal
- 72/100
- comfort score, milder than 66% of U.S. cities
- 64.1"
- annual precipitation
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
72°F (22°C)
Avg High
79°F
Avg Low
65°F
Annual Precip
64.1"
Annual Snow
0.0"
Comfort Score
72/100
Good
Avg Annual Temperature
72°F
30-year mean (NOAA NCEI)
Annual Precipitation
64.1"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Upper Wahiawa) 72.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Upper Wahiawa area.
How Upper Wahiawa compares to every U.S. city
Upper Wahiawa's comfort score vs. all U.S. cities
PlainClimate composite comfort index (1–100), NOAA 1991–2020 normals
72 Top 34% higher than 66% 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 Upper Wahiawa
MethodologyUpper Wahiawa's NOAA 1991-2020 normal sits inside a longer story: U.S. land temperatures have been tracking (and drifting from) the global mean since 1900, and the chart below shows that spread, with the most recent decade running warmer than the 30-year mean.
- 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 | Snow | Freeze Days | 90°F+ Days |
|---|---|---|---|---|---|---|---|
| January | 76°F (25°C) | 61°F (16°C) | 69°F (20°C) | 5.2" | 0.0" | 0.0 | 0.0 |
| February | 76°F (24°C) | 60°F (16°C) | 68°F (20°C) | 4.3" | 0.0" | 0.0 | 0.0 |
| March | 77°F (25°C) | 62°F (17°C) | 69°F (21°C) | 6.3" | 0.0" | 0.0 | 0.0 |
| April | 77°F (25°C) | 63°F (17°C) | 70°F (21°C) | 5.6" | 0.0" | 0.0 | 0.0 |
| May | 79°F (26°C) | 65°F (18°C) | 72°F (22°C) | 4.3" | 0.0" | 0.0 | 0.1 |
| June | 80°F (27°C) | 67°F (19°C) | 73°F (23°C) | 4.2" | 0.0" | 0.0 | 0.0 |
| July | 82°F (28°C) | 67°F (20°C) | 74°F (24°C) | 5.2" | 0.0" | 0.0 | 0.1 |
| August | 83°F (28°C) | 68°F (20°C) | 76°F (24°C) | 4.0" | 0.0" | 0.0 | 0.2 |
| September | 83°F (28°C) | 67°F (20°C) | 75°F (24°C) | 4.6" | 0.0" | 0.0 | 0.1 |
| October | 82°F (28°C) | 66°F (19°C) | 74°F (23°C) | 5.8" | 0.0" | 0.0 | 0.1 |
| November | 79°F (26°C) | 65°F (18°C) | 72°F (22°C) | 7.1" | 0.0" | 0.0 | 0.0 |
| December | 77°F (25°C) | 63°F (17°C) | 70°F (21°C) | 7.5" | 0.0" | 0.0 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 5.2"
17.1 days with precipitation
February 4.3"
14.9 days with precipitation
March 6.3"
17.3 days with precipitation
April 5.6"
21.8 days with precipitation
May 4.3"
17.6 days with precipitation
June 4.2"
22.1 days with precipitation
July 5.2"
22.8 days with precipitation
August 4.0"
20.0 days with precipitation
September 4.6"
18.9 days with precipitation
October 5.8"
22.1 days with precipitation
November 7.1"
21.8 days with precipitation
December 7.5"
20.3 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
12
Higher = more heating needed
Cooling Degree Days
2,522
Higher = more cooling needed
Warmest Month
August
Coldest Month
February
What Upper Wahiawa's climate means for you
Upper Wahiawa runs 72°F a year - peaking in August, coldest in February.
- Energy bills track 12 heating and 2,522 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: Upper Wahiawa, HI
Based on station USC00518838 feeding NOAA's 1991–2020 climate normals, Upper Wahiawa, Hawaii averages 72°F a year, ranging from a mean daily high of 79°F to a mean daily low of 65°F. August is typically the warmest month of the year, while February is the coldest. Because these figures are thirty-year averages rather than any single year's readings, they describe the typical month, not a forecast for it.
Beyond temperature, Upper Wahiawa averages 64.1 inches of precipitation annually, with negligible snowfall - a real factor for anyone planning to live, garden, or travel here. Growing-season length varies with elevation and microclimate. Turning to energy use, 12 heating degree days and 2,522 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Upper Wahiawa scores 72/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. The monthly tables above turn that into a planning tool: expect the mildest highs and lows in the shoulder seasons, August-driven heat at the peak of summer, and February-driven cold at the depth of winter. Every number here is a thirty-year average, not a forecast, so any given year can and does run warmer, cooler, wetter, or drier than the normal.
Frequently Asked Questions
What is the average temperature in Upper Wahiawa, HI? ▼
The average annual temperature in Upper Wahiawa, Hawaii is 72°F. The warmest month averages 83°F (28°C) and the coldest averages 60°F (16°C).
How much rain does Upper Wahiawa get? ▼
Upper Wahiawa receives 64.1 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Upper Wahiawa? ▼
Upper Wahiawa has a climate comfort score of 72/100 (Good), milder than 66% of U.S. cities in the PlainClimate database.
When is the growing season in Upper Wahiawa? ▼
Growing season data is not available for Upper Wahiawa.
How much energy does heating and cooling require in Upper Wahiawa? ▼
Upper Wahiawa has 12 heating degree days and 2,522 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 Upper Wahiawa climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00518838 near Upper Wahiawa.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00518838. 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.