How much does a dehumidifier cost per month in New York?

About $12.89 a month, assuming 500 W at a 60% duty cycle, 12 hours a day, 150 days a year at 28.65¢/kWh.

How many kilowatt-hours does a dehumidifier use?

Roughly 540 kWh a year under these assumptions, or 0.30 kWh for every hour it runs.

Is that expensive compared with other states?

New York has the 6th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $98.06 a year.

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Cost to run a dehumidifier in New York (August 2026 rates)

At 28.65¢ per kilowatt-hour — New York's average residential price in August 2026 — running a dehumidifier costs $155 a year. That is 58% more than the national average of $98.06. New York's residential rate is up 7.5% from August 2025, which moves this appliance from $144 to $155 a year.

Per hour: 8.6¢
Per day of use: $1.03
Per month: $12.89
Per year: $155

Assumption: 500 W at a 60% duty cycle, 12 hours a day, 150 days a year — 540 kWh a year. A 50-pint basement unit. Runtime is driven by humidity, not by a clock, so a damp basement can push the duty cycle near 1.0. Use the calculator to swap in the numbers from your own model.

How New York compares

New York pays 28.65¢/kWh, the 6th most expensive residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $56.65 more a year than the typical U.S. household pays for the same use. Running the same dehumidifier costs $68.69 a year in Nevada and $255 in Hawaii, so where you live changes this bill by $186 a year.

State	Rate	Per month	Per year
New Hampshire	27.64¢	$12.44	$149
Rhode Island	28.18¢	$12.68	$152
New York	28.65¢	$12.89	$155
Alaska	29.41¢	$13.23	$159
California	29.75¢	$13.39	$161

States ranked by average residential price, cheapest first. See all 51 states for a dehumidifier.

What else costs about the same in New York

Well pump$157 a year in NY Gaming pc$167 a year in NY Aquarium$169 a year in NY

Cutting the number down

Fixing the water source — grading, gutters, a sealed crawlspace — retires the running cost entirely instead of paying it every summer.
Setting the humidistat to 50% instead of 35% cuts runtime sharply with no comfort or mold-risk penalty.
The heat a dehumidifier dumps into the room is a bonus in a basement and a cost upstairs in July.

Questions

How much does a dehumidifier cost per month in New York?: About $12.89 a month, assuming 500 W at a 60% duty cycle, 12 hours a day, 150 days a year at 28.65¢/kWh.
How many kilowatt-hours does a dehumidifier use?: Roughly 540 kWh a year under these assumptions, or 0.30 kWh for every hour it runs.
Is that expensive compared with other states?: New York has the 6th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $98.06 a year.