Cost to Run a Humidifier 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 humidifier here costs $1.79 per month.
Per hour
0.6¢
at 20–300 W
Per day
5.9¢
10 hours/day
Per month
$1.79
12 kWh
Per year
$21.46
146 kWh
By usage level in Washington
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (5 hrs/day) | 2.9¢ | $0.89 | $10.73 |
| Typical (10 hrs/day) | 5.9¢ | $1.79 | $21.46 |
| Heavy (20 hrs/day) | $0.12 | $3.58 | $42.92 |
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 14.7¢/kWh (July 2026), a humidifier with typical usage costs about 5.9¢ per day, $1.79 per month, or $21.46 per year.
Is running a humidifier in Washington more expensive than average?
No — it's cheaper. Washington's rate is about 20% below the U.S. average: $1.79 per month here versus $2.23 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.