WattCost

Data through June 2026

Cost to run · Hawaii · 52.7¢/kWh residential average

How much does it cost to run a dehumidifier in Hawaii?

$178/yr · median certified model

Hawaii is the extreme case for U.S. electricity costs: 52.7¢/kWh, roughly 2.9× the national average. The median certified dehumidifier costs about $178 a year here — the same appliance would cost $62 at national-average rates. In this rate environment, the gap between an efficient and an inefficient dehumidifier is often larger than the appliance's purchase-price difference over its lifetime.

Only 0 jurisdictions cost more: Hawaii ranks 51 of 51 for running a dehumidifier. At local rates, certified models span $55 (CONCETTA AS-CSJ72XK-2WT-OL) to $1,480 (Healthy Climate HCWHD#-130) per year — $1,425 of annual headroom that depends entirely on which unit you buy. For reference, the national extremes are Nevada (13.1¢/kWh) and Hawaii (52.7¢/kWh); the same median dehumidifier would cost $44 and $178 a year there.

Hawaii
$178
US average
$62
Nevada
$44
Hawaii
$178
Median certified dehumidifier (338 kWh/yr) per year, at each rate

The cheapest dehumidifiers to run at Hawaii rates

Top 10 by certified kWh, priced at 52.7¢/kWh
#ModelkWh/yr$/yr in HI
1CONCETTA AS-CSJ72XK-2WT-OLmost efficient105$55
2Dr. Prepare DDH12LAmost efficient105$55
3DUMOS AS-CSJ72XK-2WT-OLmost efficient105$55
4edx AS-CSJ72XK-2WT-OLmost efficient105$55
5Gianna AS-CSJ72XK-2WT-OLmost efficient105$55
6IULULU AS-CSJ72XK-2WT-OLmost efficient105$55
7JIOABL AS-CSJ72XK-2WT-OLmost efficient105$55
8KMFurnila AS-CSJ72XK-2WT-OLmost efficient105$55
9NEWBULIG AS-CSJ72XK-2WT-OLmost efficient105$55
10OLIXIS AS-CSJ72XK-2WT-OLmost efficient105$55

Price any model at Hawaii rates

Your rate, your numbers

Per day
49¢
Per month
$14.85
Per year
$178

338 kWh/yr × 52.7¢/kWh = $178/yr

Prefilled with the median certified dehumidifier (338 kWh/yr). Every model page on this site carries its exact certified figure.

Questions, answered with the data

How much does it cost to run a dehumidifier in Hawaii?
About $178 a year for the median ENERGY STAR certified dehumidifier, at Hawaii's average residential rate of 52.7¢/kWh — that's $14.85 a month.
Is electricity expensive in Hawaii?
Hawaii's residential average of 52.7¢/kWh is 187% above the U.S. average of 18.3¢/kWh, ranking 51 of 51 jurisdictions (1 = cheapest).
What's the cheapest dehumidifier to run in Hawaii?
Among currently certified models, the CONCETTA AS-CSJ72XK-2WT-OL costs the least at about $55 a year at Hawaii rates (105 kWh/yr).
How does Hawaii compare with other states?
The same median dehumidifier costs $44 a year in Nevada (the cheapest state) and $178 in Hawaii (the priciest). Hawaii sits at $178.

Keep digging

Rate source: US EIA, average residential price of electricity, see methodology.