One city, three plausible setups

These are sensitivity scenarios—not a confidence interval. The reference setup is the ranking standard.

Setup	Annual energy	Monthly average	Annual cost
Efficient insulated	713 kWh	$28/mo	$336/yr
Reference consumer setup	1,416 kWh	$56/mo	$668/yr
Lightly insulated / exposed	2,640 kWh	$104/mo	$1,246/yr

What colder targets change

Lower settings increase positive temperature degree-hours and chiller runtime. The same reference configuration is held constant.

Target	Reference cost
55°F	$614/year
50°F	$668/year
45°F	$722/year
39°F	$786/year

Data provenance

Climate: NOAA 1991–2020 U.S. Climate Normals
Station: WAIKIKI 717.2, HI US (USC00519397)
Electricity: U.S. EIA residential average retail price, 2026-08; state-level input
Model: ArcticSoak 2.0.0; generated 2026-10-26T18:40:35+00:00

Download this city record (JSON)

Reference scenario

Monthly climate and cost profile

Daily low/high normals become positive cooling degree-hours; provisional pages use approximate profiles until NOAA retrieval succeeds.

Month	Normal low–high	Energy	Cost
January	66–80°F	110 kWh	$52
February	66–81°F	100 kWh	$47
March	68–81°F	113 kWh	$53
April	70–83°F	113 kWh	$53
May	71–85°F	121 kWh	$57
June	73–86°F	122 kWh	$57
July	74–87°F	128 kWh	$60
August	75–88°F	130 kWh	$61
September	74–88°F	124 kWh	$59
October	73–87°F	126 kWh	$59
November	72–84°F	116 kWh	$55
December	69–82°F	114 kWh	$54

Cite this page

ArcticSoak. “Cold Plunge Cost in Honolulu, HI.” Model 2.0.0, dataset 2026-10-26. Accessed [date]. https://arcticsoak.com/cities/honolulu-hi/

Embed this city card

<iframe src="https://arcticsoak.com/embed/city/?city=honolulu-hi" title="Cold plunge cost in Honolulu, HI" width="420" height="260" loading="lazy"></iframe><p><a href="https://arcticsoak.com/cities/honolulu-hi/">Cold plunge cost in Honolulu, HI — ArcticSoak</a></p>