Cost to Run a Window Air Conditioner in New Hampshire
New Hampshire's average residential electricity rate is 26.6¢/kWh as of July 2026 — the 44th cheapest in the country, 45% above the U.S. average. At typical usage (8 hours/day), a window air conditioner here costs $58.22 per month.
Per hour
$0.24
at 500–1,500 W
Per day
$1.92
8 hours/day
Per month
$58.22
219 kWh
Per year
$699
2,628 kWh
By usage level in New Hampshire
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.96 | $29.11 | $350 |
| Typical (8 hrs/day) | $1.92 | $58.22 | $699 |
| Heavy (16 hrs/day) | $3.83 | $116 | $1,398 |
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 26.6¢/kWh (July 2026), a window air conditioner with typical usage costs about $1.92 per day, $58.22 per month, or $699 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 $58.22 per month here versus $40.06 nationally.
What does electricity cost in New Hampshire right now?
New Hampshire residents pay an average of 26.6¢ per kWh as of July 2026 — the 44th cheapest rate of the 51 U.S. jurisdictions we track.