Cost to Run a Central 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 central air conditioner here costs $206 per month.
Per hour
$0.85
at 2,000–5,000 W
Per day
$6.78
8 hours/day
Per month
$206
851 kWh
Per year
$2,473
10,220 kWh
By usage level in Connecticut
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $3.39 | $103 | $1,237 |
| Typical (8 hrs/day) | $6.78 | $206 | $2,473 |
| Heavy (16 hrs/day) | $13.55 | $412 | $4,946 |
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 24.2¢/kWh (July 2026), a central air conditioner with typical usage costs about $6.78 per day, $206 per month, or $2,473 per year.
Is running a central 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 $206 per month here versus $156 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.