Climate Comfort Score
72/100
Good
NOAA 1991–2020 normals 67°F annual avg Public-domain federal data
Glenwood, HI Climate
Average temperature, precipitation, and a comfort score, drawn from NOAA NCEI 1991–2020 normals →
- 67°F
- Avg annual temp
- 72/100
- Comfort score
- 229.1"
- Annual precip
30-year climate normals from 1 weather station (1991-2020).
The climate verdict for Glenwood
Glenwood, Hawaii averages 67°F a year and scores 72/100 on the comfort index - good, milder than 66% of U.S. cities.
- 67°F
- yearly average temperature, NOAA normal
- 72/100
- comfort score, milder than 66% of U.S. cities
- 229.1"
- annual precipitation
Based on NOAA U.S. Climate Normals (1991–2020) - 30-year averages describing the typical year, not a forecast.
Avg Temperature
67°F (19°C)
Avg High
75°F
Avg Low
59°F
Annual Precip
229.1"
Annual Snow
0.0"
Comfort Score
72/100
Good
Avg Annual Temperature
67°F
30-year mean (NOAA NCEI)
Annual Precipitation
229.1"
Liquid-equivalent total
Comfort score vs national 100-point ceiling (Glenwood) 72.0%
National median (63)
PlainClimate composite, temperature mildness, humidity, precipitation, extreme-weather frequency. Good for the Glenwood area.
How Glenwood compares to every U.S. city
Glenwood'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 Glenwood
MethodologyGlenwood'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 | 74°F (23°C) | 56°F (13°C) | 65°F (18°C) | 13.1" | 0.0" | 0.0 | 0.6 |
| February | 72°F (22°C) | 56°F (13°C) | 64°F (18°C) | 15.8" | 0.0" | 0.0 | 0.0 |
| March | 73°F (23°C) | 57°F (14°C) | 65°F (18°C) | 22.9" | 0.0" | 0.0 | 0.0 |
| April | 73°F (23°C) | 58°F (14°C) | 66°F (19°C) | 22.0" | 0.0" | 0.0 | 0.0 |
| May | 75°F (24°C) | 59°F (15°C) | 67°F (19°C) | 15.0" | 0.0" | 0.0 | 0.0 |
| June | 76°F (24°C) | 60°F (16°C) | 68°F (20°C) | 18.1" | 0.0" | 0.0 | 0.0 |
| July | 77°F (25°C) | 62°F (16°C) | 69°F (21°C) | 19.0" | 0.0" | 0.0 | 0.0 |
| August | 77°F (25°C) | 62°F (17°C) | 70°F (21°C) | 23.5" | 0.0" | 0.0 | 0.0 |
| September | 78°F (26°C) | 61°F (16°C) | 70°F (21°C) | 16.1" | 0.0" | 0.0 | 0.0 |
| October | 77°F (25°C) | 61°F (16°C) | 69°F (20°C) | 18.2" | 0.0" | 0.0 | 0.0 |
| November | 75°F (24°C) | 59°F (15°C) | 67°F (19°C) | 23.1" | 0.0" | 0.0 | 0.0 |
| December | 74°F (23°C) | 57°F (14°C) | 66°F (19°C) | 22.3" | 0.0" | 0.0 | 0.0 |
Monthly Precipitation
Average monthly rainfall and snowfall
January 13.1"
17.4 days with precipitation
February 15.8"
20.3 days with precipitation
March 22.9"
25.9 days with precipitation
April 22.0"
28.0 days with precipitation
May 15.0"
25.4 days with precipitation
June 18.1"
27.2 days with precipitation
July 19.0"
27.8 days with precipitation
August 23.5"
28.6 days with precipitation
September 16.1"
25.9 days with precipitation
October 18.2"
26.9 days with precipitation
November 23.1"
25.1 days with precipitation
December 22.3"
22.6 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
168
Higher = more heating needed
Cooling Degree Days
904
Higher = more cooling needed
Warmest Month
September
Coldest Month
February
What Glenwood's climate means for you
Glenwood runs 67°F a year - peaking in September, coldest in February.
- Energy bills track 168 heating and 904 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: Glenwood, HI
An annual average temperature of 67°F, ranging from a mean daily high of 75°F to a mean daily low of 59°F is what the NOAA 1991–2020 climate normals report for Glenwood, Hawaii. September is typically the warmest month of the year, while February is the coldest. That baseline comes from station USC00510746 and thirty years of averaging, so it reflects a typical month rather than any one year's swings.
Beyond temperature, Glenwood averages 229.1 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, 168 heating degree days and 904 cooling degree days tell the story of how often furnaces and air conditioners run during a normal year.
On PlainClimate's composite comfort index, Glenwood scores 72/100 (Good), a blended measure that weighs temperature mildness, precipitation moderation, and extreme-weather frequency against one another. For planning purposes, look to the monthly tables above: shoulder seasons bring the mildest highs and lows, summer brings September-driven heat, and deep winter brings February-driven cold. Treat every figure here as a thirty-year average rather than a forecast - individual years routinely run warmer, cooler, wetter, or drier than the normal.
Frequently Asked Questions
What is the average temperature in Glenwood, HI? ▼
The average annual temperature in Glenwood, Hawaii is 67°F. The warmest month averages 78°F (26°C) and the coldest averages 56°F (13°C).
How much rain does Glenwood get? ▼
Glenwood receives 229.1 inches of precipitation annually. Based on NOAA 30-year climate normals (1991-2020).
What is the comfort score for Glenwood? ▼
Glenwood 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 Glenwood? ▼
Growing season data is not available for Glenwood.
How much energy does heating and cooling require in Glenwood? ▼
Glenwood has 168 heating degree days and 904 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 Glenwood climate data come from? ▼
NOAA U.S. Climate Normals v1.0.1 (1991-2020), from weather station USC00510746 near Glenwood.
Data Sources
Data source: NOAA U.S. Climate Normals v1.0.1 (1991-2020). Station: USC00510746. 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.