How much electricity does a dehumidifier use?
In U.S. homes that have one, a dehumidifier uses about 999 kWh a year, or 83 kWh a month. At the 2025 average residential price of 17.2¢ per kWh that is $172 a year or $14.34 a month. These are EIA estimates from its Residential Energy Consumption Survey of homes and their utility bills, not a manufacturer's label.
What decides the number
Homes with a dehumidifier used 999 kWh a year to run it, more than a refrigerator. Many run around the clock in a damp basement for months. A model with a humidistat set to about 50% relative humidity stops when the air is dry enough.
Dehumidifier electricity use by home
By climate
| Climate | kWh / year | Cost / year at 17.2¢ |
|---|---|---|
| Very cold and Cold | 932 | $161 |
| Mixed-humid | 1,075 | $185 |
| Mixed-dry and Hot-dry | 773 | $133 |
| Hot-humid | 1,368 | $236 |
| Marine | 865 | $149 |
By region
| Region | kWh / year | Cost / year at 17.2¢ |
|---|---|---|
| Northeast | 924 | $159 |
| Midwest | 960 | $165 |
| South | 1,203 | $207 |
| West | 852 | $147 |
Source: U.S. Energy Information Administration, 2020 Residential Energy Consumption Survey (RECS), Tables CE5.3a/CE5.3b, average site electricity consumption per household using the end use (revised March 2024).
Cost to run a dehumidifier in every state
| State | ¢/kWh | Per month | Per year |
|---|---|---|---|
| Hawaii | 40.4 | $33.63 | $403.60 |
| California | 31.4 | $26.10 | $313.19 |
| Massachusetts | 30.4 | $25.32 | $303.80 |
| Rhode Island | 29.5 | $24.54 | $294.51 |
| Connecticut | 29.3 | $24.40 | $292.81 |
| Maine | 27.7 | $23.05 | $276.62 |
| New York | 26.4 | $21.97 | $263.64 |
| Alaska | 26.1 | $21.74 | $260.84 |
| New Hampshire | 24.5 | $20.42 | $245.05 |
| Vermont | 22.8 | $18.97 | $227.67 |
| New Jersey | 22.5 | $18.71 | $224.58 |
| District of Columbia | 21.9 | $18.25 | $218.98 |
| Michigan | 20.0 | $16.67 | $200.10 |
| Maryland | 19.5 | $16.26 | $195.10 |
| Pennsylvania | 19.3 | $16.06 | $192.71 |
| Wisconsin | 18.1 | $15.05 | $180.62 |
| Illinois | 17.7 | $14.71 | $176.52 |
| Delaware | 17.1 | $14.28 | $171.33 |
| Ohio | 16.9 | $14.07 | $168.83 |
| Alabama | 16.1 | $13.39 | $160.74 |
| Indiana | 16.0 | $13.29 | $159.44 |
| Minnesota | 15.8 | $13.18 | $158.14 |
| Colorado | 15.7 | $13.06 | $156.74 |
| Oregon | 15.5 | $12.87 | $154.45 |
| Texas | 15.4 | $12.82 | $153.85 |
| West Virginia | 15.4 | $12.81 | $153.75 |
| Virginia | 15.3 | $12.72 | $152.65 |
| Arizona | 15.3 | $12.70 | $152.45 |
| Florida | 15.2 | $12.66 | $151.95 |
| South Carolina | 15.1 | $12.59 | $151.05 |
| New Mexico | 14.8 | $12.36 | $148.35 |
| Georgia | 14.7 | $12.27 | $147.25 |
| Kansas | 14.4 | $12.02 | $144.26 |
| Mississippi | 14.0 | $11.68 | $140.16 |
| North Carolina | 14.0 | $11.66 | $139.86 |
| Iowa | 13.6 | $11.34 | $136.06 |
| Wyoming | 13.4 | $11.13 | $133.57 |
| South Dakota | 13.3 | $11.09 | $133.07 |
| Missouri | 13.3 | $11.07 | $132.87 |
| Nevada | 13.3 | $11.04 | $132.47 |
| Tennessee | 13.2 | $11.01 | $132.07 |
| Oklahoma | 13.2 | $11.00 | $131.97 |
| Washington | 13.2 | $10.96 | $131.57 |
| Kentucky | 13.1 | $10.93 | $131.17 |
| Utah | 13.0 | $10.84 | $130.07 |
| Montana | 13.0 | $10.81 | $129.77 |
| Arkansas | 12.9 | $10.71 | $128.57 |
| Louisiana | 12.5 | $10.42 | $125.07 |
| Nebraska | 12.1 | $10.03 | $120.38 |
| Idaho | 11.8 | $9.85 | $118.18 |
| North Dakota | 11.8 | $9.84 | $118.08 |
999 kWh a year at each state's 2025 average residential price (EIA-861), all charges included.
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