Dehumidifiers / Washington
Cost to run a dehumidifier in Washington
A typical ENERGY STAR dehumidifier costs about $50.01 a year to run in Washington, or $4.17 a month, at the state’s average residential price of 14.71 cents per kWh (July 2026).
- Typical yearly cost
- $50.01
- Over ten years
- $500 today’s price
- Price in Washington
- 14.71 ¢/kWh
“Typical” means the median annual energy use of 560 current ENERGY STAR certified dehumidifiers (340 kWh a year), multiplied by the price. It is a standardized figure, not a measurement of your home.
By type of dehumidifier
| Type | Models | Median kWh/yr | Cost per year | Per month | Range per year |
|---|---|---|---|---|---|
| Portable Dehumidifier | 539 | 315 | $46.34 | $3.86 | $15.45 to $130.33 |
| Whole-home Dehumidifier | 21 | 628 | $92.38 | $7.70 | $61.63 to $413.06 |
Costs use each type’s median listing; the range runs from its lowest to its highest listed energy use. Source: ENERGY STAR certified dehumidifiers dataset (EPA) and EIA residential prices.
How Washington compares
Washington’s average residential price is 9% below the median US state, ranking 39 of 51 from highest to lowest. The same typical dehumidifier would cost $43.25 a year in Louisiana, the cheapest state, and $163.20 in Hawaii, the most expensive. Over the last 12 months Washington’s price rose 9.4%.
Cost to run a dehumidifier in every state · Washington electricity price history · Replacing an old dehumidifier? Savings calculator
Lowest running cost by type
The published model with the lowest listed annual energy use in each type, with its cost at Washington’s price:
- KEGIAN KE-HY9DE003-W (portable dehumidifier): 105 kWh a year, about $15.45 in Washington
- Santa Fe 4047100 (whole-home dehumidifier): 419 kWh a year, about $61.63 in Washington
These are the lowest among the models published on this site, not among every certified model. Browse all dehumidifiers by energy use.
Questions
How much does it cost to run a dehumidifier in Washington?
A typical ENERGY STAR dehumidifier (the median of 560 current listings, 340 kWh a year) costs about $50.01 a year, or $4.17 a month, at Washington's average residential price of 14.71 cents per kWh. By type it ranges from $46.34 (portable dehumidifier) to $92.38 (whole-home dehumidifier).
Is electricity expensive in Washington?
Washington's average residential price is 14.71 cents per kWh (July 2026, EIA), 9% below the median state and 39 of 51 when states are ranked from highest to lowest price. The same typical dehumidifier would cost $43.25 a year in Louisiana, the cheapest state, and $163.20 in Hawaii.
Will my dehumidifier cost the same?
Probably not exactly. The annual figure is a standardized ENERGY STAR value, and your own price per kWh may differ from the statewide average. Enter your rate in the calculator on any dehumidifier page for a closer number.