Cost to Run a Evaporative (Swamp) Cooler 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 evaporative (swamp) cooler here costs $25.88 per month.
Per hour
$0.11
at 100–800 W
Per day
$0.85
8 hours/day
Per month
$25.88
97 kWh
Per year
$311
1,168 kWh
By usage level in New Hampshire
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.43 | $12.94 | $155 |
| Typical (8 hrs/day) | $0.85 | $25.88 | $311 |
| Heavy (16 hrs/day) | $1.70 | $51.75 | $621 |
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 26.6¢/kWh (July 2026), a evaporative (swamp) cooler with typical usage costs about $0.85 per day, $25.88 per month, or $311 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 $25.88 per month here versus $17.80 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.