Cost to Run a Evaporative (Swamp) Cooler in Ohio
Ohio's average residential electricity rate is 19.5¢/kWh as of April 2026 — the 35th cheapest in the country, 4% above the U.S. average. At typical usage (8 hours/day), a evaporative (swamp) cooler here costs $18.97 per month.
Per hour
7.8¢
at 100–800 W
Per day
$0.62
8 hours/day
Per month
$18.97
97 kWh
Per year
$228
1,168 kWh
By usage level in Ohio
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.31 | $9.48 | $114 |
| Typical (8 hrs/day) | $0.62 | $18.97 | $228 |
| Heavy (16 hrs/day) | $1.25 | $37.94 | $456 |
Ohio 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 Ohio?
At Ohio's current average residential rate of 19.5¢/kWh (April 2026), a evaporative (swamp) cooler with typical usage costs about $0.62 per day, $18.97 per month, or $228 per year.
Is running a evaporative (swamp) cooler in Ohio more expensive than average?
Yes. Ohio's electricity costs about 4% more than the U.S. average, so the same usage costs $18.97 per month here versus $18.29 nationally.
What does electricity cost in Ohio right now?
Ohio residents pay an average of 19.5¢ per kWh as of April 2026 — the 35th cheapest rate of the 51 U.S. jurisdictions we track.