Cost to Run a Dehumidifier in Illinois
Illinois's average residential electricity rate is 20.5¢/kWh as of April 2026 — the 36th cheapest in the country, 9% above the U.S. average. At typical usage (10 hours/day), a dehumidifier here costs $31.16 per month.
Per hour
$0.10
at 300–700 W
Per day
$1.02
10 hours/day
Per month
$31.16
152 kWh
Per year
$374
1,825 kWh
By usage level in Illinois
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (5 hrs/day) | $0.51 | $15.58 | $187 |
| Typical (10 hrs/day) | $1.02 | $31.16 | $374 |
| Heavy (20 hrs/day) | $2.05 | $62.32 | $748 |
Illinois vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a dehumidifier in Illinois?
At Illinois's current average residential rate of 20.5¢/kWh (April 2026), a dehumidifier with typical usage costs about $1.02 per day, $31.16 per month, or $374 per year.
Is running a dehumidifier in Illinois more expensive than average?
Yes. Illinois's electricity costs about 9% more than the U.S. average, so the same usage costs $31.16 per month here versus $28.58 nationally.
What does electricity cost in Illinois right now?
Illinois residents pay an average of 20.5¢ per kWh as of April 2026 — the 36th cheapest rate of the 51 U.S. jurisdictions we track.