Cost to Run a Central Air Conditioner in New Hampshire
New Hampshire's average residential electricity rate is 27.3¢/kWh as of May 2026 — the 43rd cheapest in the country, 48% above the U.S. average. At typical usage (8 hours/day), a central air conditioner here costs $232 per month.
Per hour
$0.96
at 2,000–5,000 W
Per day
$7.64
8 hours/day
Per month
$232
851 kWh
Per year
$2,790
10,220 kWh
By usage level in New Hampshire
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $3.82 | $116 | $1,395 |
| Typical (8 hrs/day) | $7.64 | $232 | $2,790 |
| Heavy (16 hrs/day) | $15.29 | $465 | $5,580 |
New Hampshire 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 New Hampshire?
At New Hampshire's current average residential rate of 27.3¢/kWh (May 2026), a central air conditioner with typical usage costs about $7.64 per day, $232 per month, or $2,790 per year.
Is running a central air conditioner in New Hampshire more expensive than average?
Yes. New Hampshire's electricity costs about 48% more than the U.S. average, so the same usage costs $232 per month here versus $157 nationally.
What does electricity cost in New Hampshire right now?
New Hampshire residents pay an average of 27.3¢ per kWh as of May 2026 — the 43rd cheapest rate of the 51 U.S. jurisdictions we track.