Cost to Run a Central Air Conditioner in Massachusetts
Massachusetts's average residential electricity rate is 28.8¢/kWh as of May 2026 — the 47th cheapest in the country, 57% above the U.S. average. At typical usage (8 hours/day), a central air conditioner here costs $245 per month.
Per hour
$1.01
at 2,000–5,000 W
Per day
$8.06
8 hours/day
Per month
$245
851 kWh
Per year
$2,943
10,220 kWh
By usage level in Massachusetts
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $4.03 | $123 | $1,472 |
| Typical (8 hrs/day) | $8.06 | $245 | $2,943 |
| Heavy (16 hrs/day) | $16.13 | $490 | $5,887 |
Massachusetts 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 Massachusetts?
At Massachusetts's current average residential rate of 28.8¢/kWh (May 2026), a central air conditioner with typical usage costs about $8.06 per day, $245 per month, or $2,943 per year.
Is running a central air conditioner in Massachusetts more expensive than average?
Yes. Massachusetts's electricity costs about 57% more than the U.S. average, so the same usage costs $245 per month here versus $157 nationally.
What does electricity cost in Massachusetts right now?
Massachusetts residents pay an average of 28.8¢ per kWh as of May 2026 — the 47th cheapest rate of the 51 U.S. jurisdictions we track.