Cost to Run a Humidifier in Washington
Washington's average residential electricity rate is 14.4¢/kWh as of April 2026 — the 12th cheapest in the country, 23% below the U.S. average. At typical usage (10 hours/day), a humidifier here costs $1.75 per month.
Per hour
0.6¢
at 20–300 W
Per day
5.8¢
10 hours/day
Per month
$1.75
12 kWh
Per year
$21.02
146 kWh
By usage level in Washington
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (5 hrs/day) | 2.9¢ | $0.88 | $10.51 |
| Typical (10 hrs/day) | 5.8¢ | $1.75 | $21.02 |
| Heavy (20 hrs/day) | $0.12 | $3.50 | $42.05 |
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 14.4¢/kWh (April 2026), a humidifier with typical usage costs about 5.8¢ per day, $1.75 per month, or $21.02 per year.
Is running a humidifier in Washington more expensive than average?
No — it's cheaper. Washington's rate is about 23% below the U.S. average: $1.75 per month here versus $2.29 nationally.
What does electricity cost in Washington right now?
Washington residents pay an average of 14.4¢ per kWh as of April 2026 — the 12th cheapest rate of the 51 U.S. jurisdictions we track.