Cost to Run a Window Air Conditioner in Connecticut
Connecticut's average residential electricity rate is 32.2¢/kWh as of April 2026 — the 49th cheapest in the country, 71% above the U.S. average. At typical usage (8 hours/day), a window air conditioner here costs $70.48 per month.
Per hour
$0.29
at 500–1,500 W
Per day
$2.32
8 hours/day
Per month
$70.48
219 kWh
Per year
$846
2,628 kWh
By usage level in Connecticut
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $1.16 | $35.24 | $423 |
| Typical (8 hrs/day) | $2.32 | $70.48 | $846 |
| Heavy (16 hrs/day) | $4.64 | $141 | $1,692 |
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 32.2¢/kWh (April 2026), a window air conditioner with typical usage costs about $2.32 per day, $70.48 per month, or $846 per year.
Is running a window air conditioner in Connecticut more expensive than average?
Yes. Connecticut's electricity costs about 71% more than the U.S. average, so the same usage costs $70.48 per month here versus $41.15 nationally.
What does electricity cost in Connecticut right now?
Connecticut residents pay an average of 32.2¢ per kWh as of April 2026 — the 49th cheapest rate of the 51 U.S. jurisdictions we track.