Cost to Run a Window Air Conditioner in Wisconsin
Wisconsin's average residential electricity rate is 19.7¢/kWh as of May 2026 — the 35th cheapest in the country, 7% above the U.S. average. At typical usage (8 hours/day), a window air conditioner here costs $43.12 per month.
Per hour
$0.18
at 500–1,500 W
Per day
$1.42
8 hours/day
Per month
$43.12
219 kWh
Per year
$518
2,628 kWh
By usage level in Wisconsin
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.71 | $21.56 | $259 |
| Typical (8 hrs/day) | $1.42 | $43.12 | $518 |
| Heavy (16 hrs/day) | $2.84 | $86.24 | $1,035 |
Wisconsin vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a window air conditioner in Wisconsin?
At Wisconsin's current average residential rate of 19.7¢/kWh (May 2026), a window air conditioner with typical usage costs about $1.42 per day, $43.12 per month, or $518 per year.
Is running a window air conditioner in Wisconsin more expensive than average?
Yes. Wisconsin's electricity costs about 7% more than the U.S. average, so the same usage costs $43.12 per month here versus $40.27 nationally.
What does electricity cost in Wisconsin right now?
Wisconsin residents pay an average of 19.7¢ per kWh as of May 2026 — the 35th cheapest rate of the 51 U.S. jurisdictions we track.