Cost to Run a Window Air Conditioner in Connecticut
Connecticut's average residential electricity rate is 24.2¢/kWh as of July 2026 — the 41st cheapest in the country, 32% above the U.S. average. At typical usage (8 hours/day), a window air conditioner here costs $52.97 per month.
Per hour
$0.22
at 500–1,500 W
Per day
$1.74
8 hours/day
Per month
$52.97
219 kWh
Per year
$636
2,628 kWh
By usage level in Connecticut
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.87 | $26.48 | $318 |
| Typical (8 hrs/day) | $1.74 | $52.97 | $636 |
| Heavy (16 hrs/day) | $3.48 | $106 | $1,272 |
Connecticut 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 Connecticut?
At Connecticut's current average residential rate of 24.2¢/kWh (July 2026), a window air conditioner with typical usage costs about $1.74 per day, $52.97 per month, or $636 per year.
Is running a window air conditioner in Connecticut more expensive than average?
Yes. Connecticut's electricity costs about 32% more than the U.S. average, so the same usage costs $52.97 per month here versus $40.06 nationally.
What does electricity cost in Connecticut right now?
Connecticut residents pay an average of 24.2¢ per kWh as of July 2026 — the 41st cheapest rate of the 51 U.S. jurisdictions we track.