Cost to Run a Window Air Conditioner in New Jersey
New Jersey's average residential electricity rate is 23.3¢/kWh as of May 2026 — the 39th cheapest in the country, 27% above the U.S. average. At typical usage (8 hours/day), a window air conditioner here costs $51.00 per month.
Per hour
$0.21
at 500–1,500 W
Per day
$1.68
8 hours/day
Per month
$51.00
219 kWh
Per year
$612
2,628 kWh
By usage level in New Jersey
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.84 | $25.50 | $306 |
| Typical (8 hrs/day) | $1.68 | $51.00 | $612 |
| Heavy (16 hrs/day) | $3.36 | $102 | $1,225 |
New Jersey 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 New Jersey?
At New Jersey's current average residential rate of 23.3¢/kWh (May 2026), a window air conditioner with typical usage costs about $1.68 per day, $51.00 per month, or $612 per year.
Is running a window air conditioner in New Jersey more expensive than average?
Yes. New Jersey's electricity costs about 27% more than the U.S. average, so the same usage costs $51.00 per month here versus $40.27 nationally.
What does electricity cost in New Jersey right now?
New Jersey residents pay an average of 23.3¢ per kWh as of May 2026 — the 39th cheapest rate of the 51 U.S. jurisdictions we track.