WattCost

Data through June 2026

Cost to run · California · 34.7¢/kWh residential average

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

$117/yr · median certified model

Electricity in California is genuinely expensive — 34.7¢/kWh, 89% above the national average — so the median certified dehumidifier costs about $117 a year, and efficiency differences between models turn into real money.

Only 1 jurisdiction costs more: California ranks 50 of 51 for running a dehumidifier. Model choice matters as much as geography: at California rates the most efficient certified model (CONCETTA AS-CSJ72XK-2WT-OL) costs $36 a year while the most power-hungry (Healthy Climate HCWHD#-130) costs $975 — a spread of $939 every year. 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.

California
$117
US average
$62
Nevada
$44
Hawaii
$178
Median certified dehumidifier (338 kWh/yr) per year, at each rate

The cheapest dehumidifiers to run at California rates

Top 10 by certified kWh, priced at 34.7¢/kWh
#ModelkWh/yr$/yr in CA
1CONCETTA AS-CSJ72XK-2WT-OLmost efficient105$36
2Dr. Prepare DDH12LAmost efficient105$36
3DUMOS AS-CSJ72XK-2WT-OLmost efficient105$36
4edx AS-CSJ72XK-2WT-OLmost efficient105$36
5Gianna AS-CSJ72XK-2WT-OLmost efficient105$36
6IULULU AS-CSJ72XK-2WT-OLmost efficient105$36
7JIOABL AS-CSJ72XK-2WT-OLmost efficient105$36
8KMFurnila AS-CSJ72XK-2WT-OLmost efficient105$36
9NEWBULIG AS-CSJ72XK-2WT-OLmost efficient105$36
10OLIXIS AS-CSJ72XK-2WT-OLmost efficient105$36

Price any model at California rates

Your rate, your numbers

Per day
32¢
Per month
$9.79
Per year
$117

338 kWh/yr × 34.7¢/kWh = $117/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 California?
About $117 a year for the median ENERGY STAR certified dehumidifier, at California's average residential rate of 34.7¢/kWh — that's $9.79 a month.
Is electricity expensive in California?
California's residential average of 34.7¢/kWh is 89% above the U.S. average of 18.3¢/kWh, ranking 50 of 51 jurisdictions (1 = cheapest).
What's the cheapest dehumidifier to run in California?
Among currently certified models, the CONCETTA AS-CSJ72XK-2WT-OL costs the least at about $36 a year at California rates (105 kWh/yr).
How does California compare with other states?
The same median dehumidifier costs $44 a year in Nevada (the cheapest state) and $178 in Hawaii (the priciest). California sits at $117.

Keep digging

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