Cost to Run a Central 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 central air conditioner here costs $274 per month.
Per hour
$1.13
at 2,000–5,000 W
Per day
$9.02
8 hours/day
Per month
$274
851 kWh
Per year
$3,291
10,220 kWh
By usage level in Connecticut
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $4.51 | $137 | $1,645 |
| Typical (8 hrs/day) | $9.02 | $274 | $3,291 |
| Heavy (16 hrs/day) | $18.03 | $548 | $6,582 |
Connecticut vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a central air conditioner in Connecticut?
At Connecticut's current average residential rate of 32.2¢/kWh (April 2026), a central air conditioner with typical usage costs about $9.02 per day, $274 per month, or $3,291 per year.
Is running a central 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 $274 per month here versus $160 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.