Cost to Run a Humidifier in Washington
Washington's average residential electricity rate is 15¢/kWh as of May 2026 — the 16th cheapest in the country, 18% below the U.S. average. At typical usage (10 hours/day), a humidifier here costs $1.82 per month.
Per hour
0.6¢
at 20–300 W
Per day
6.0¢
10 hours/day
Per month
$1.82
12 kWh
Per year
$21.90
146 kWh
By usage level in Washington
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (5 hrs/day) | 3.0¢ | $0.91 | $10.95 |
| Typical (10 hrs/day) | 6.0¢ | $1.82 | $21.90 |
| Heavy (20 hrs/day) | $0.12 | $3.65 | $43.80 |
Washington vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a humidifier in Washington?
At Washington's current average residential rate of 15¢/kWh (May 2026), a humidifier with typical usage costs about 6.0¢ per day, $1.82 per month, or $21.90 per year.
Is running a humidifier in Washington more expensive than average?
No — it's cheaper. Washington's rate is about 18% below the U.S. average: $1.82 per month here versus $2.24 nationally.
What does electricity cost in Washington right now?
Washington residents pay an average of 15¢ per kWh as of May 2026 — the 16th cheapest rate of the 51 U.S. jurisdictions we track.