Cost to Run a Dehumidifier in Washington
Washington's average residential electricity rate is 14.7¢/kWh as of July 2026 — the 13th cheapest in the country, 20% below the U.S. average. At typical usage (10 hours/day), a dehumidifier here costs $22.34 per month.
Per hour
7.3¢
at 300–700 W
Per day
$0.73
10 hours/day
Per month
$22.34
152 kWh
Per year
$268
1,825 kWh
By usage level in Washington
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (5 hrs/day) | $0.37 | $11.17 | $134 |
| Typical (10 hrs/day) | $0.73 | $22.34 | $268 |
| Heavy (20 hrs/day) | $1.47 | $44.69 | $537 |
Washington vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a dehumidifier in Washington?
At Washington's current average residential rate of 14.7¢/kWh (July 2026), a dehumidifier with typical usage costs about $0.73 per day, $22.34 per month, or $268 per year.
Is running a dehumidifier in Washington more expensive than average?
No — it's cheaper. Washington's rate is about 20% below the U.S. average: $22.34 per month here versus $27.82 nationally.
What does electricity cost in Washington right now?
Washington residents pay an average of 14.7¢ per kWh as of July 2026 — the 13th cheapest rate of the 51 U.S. jurisdictions we track.