Cost to Run a Evaporative (Swamp) Cooler 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 evaporative (swamp) cooler here costs $26.46 per month.
Per hour
$0.11
at 100–800 W
Per day
$0.87
8 hours/day
Per month
$26.46
97 kWh
Per year
$318
1,168 kWh
By usage level in New Hampshire
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.44 | $13.23 | $159 |
| Typical (8 hrs/day) | $0.87 | $26.46 | $318 |
| Heavy (16 hrs/day) | $1.74 | $52.92 | $635 |
New Hampshire vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a evaporative (swamp) cooler in New Hampshire?
At New Hampshire's current average residential rate of 27.2¢/kWh (April 2026), a evaporative (swamp) cooler with typical usage costs about $0.87 per day, $26.46 per month, or $318 per year.
Is running a evaporative (swamp) cooler 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 $26.46 per month here versus $18.29 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.