Cost to Run a Window Air Conditioner in New Hampshire
New Hampshire's average residential electricity rate is 27.2¢/kWh as of April 2026 — the 43rd cheapest in the country, 45% above the U.S. average. At typical usage (8 hours/day), a window air conditioner here costs $59.54 per month.
Per hour
$0.24
at 500–1,500 W
Per day
$1.96
8 hours/day
Per month
$59.54
219 kWh
Per year
$715
2,628 kWh
By usage level in New Hampshire
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.98 | $29.77 | $357 |
| Typical (8 hrs/day) | $1.96 | $59.54 | $715 |
| Heavy (16 hrs/day) | $3.92 | $119 | $1,430 |
New Hampshire 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 New Hampshire?
At New Hampshire's current average residential rate of 27.2¢/kWh (April 2026), a window air conditioner with typical usage costs about $1.96 per day, $59.54 per month, or $715 per year.
Is running a window air conditioner in New Hampshire more expensive than average?
Yes. New Hampshire's electricity costs about 45% more than the U.S. average, so the same usage costs $59.54 per month here versus $41.15 nationally.
What does electricity cost in New Hampshire right now?
New Hampshire residents pay an average of 27.2¢ per kWh as of April 2026 — the 43rd cheapest rate of the 51 U.S. jurisdictions we track.