Cost to Run a Dehumidifier in Illinois
Illinois's average residential electricity rate is 23.9¢/kWh as of May 2026 — the 40th cheapest in the country, 30% above the U.S. average. At typical usage (10 hours/day), a dehumidifier here costs $36.33 per month.
Per hour
$0.12
at 300–700 W
Per day
$1.19
10 hours/day
Per month
$36.33
152 kWh
Per year
$436
1,825 kWh
By usage level in Illinois
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (5 hrs/day) | $0.60 | $18.16 | $218 |
| Typical (10 hrs/day) | $1.19 | $36.33 | $436 |
| Heavy (20 hrs/day) | $2.39 | $72.66 | $872 |
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 23.9¢/kWh (May 2026), a dehumidifier with typical usage costs about $1.19 per day, $36.33 per month, or $436 per year.
Is running a dehumidifier in Illinois more expensive than average?
Yes. Illinois's electricity costs about 30% more than the U.S. average, so the same usage costs $36.33 per month here versus $27.97 nationally.
What does electricity cost in Illinois right now?
Illinois residents pay an average of 23.9¢ per kWh as of May 2026 — the 40th cheapest rate of the 51 U.S. jurisdictions we track.