Cost to Run a Evaporative (Swamp) Cooler in Oklahoma
Oklahoma's average residential electricity rate is 14.4¢/kWh as of July 2026 — the 10th cheapest in the country, 21% below the U.S. average. At typical usage (8 hours/day), a evaporative (swamp) cooler here costs $14.01 per month.
Per hour
5.8¢
at 100–800 W
Per day
$0.46
8 hours/day
Per month
$14.01
97 kWh
Per year
$168
1,168 kWh
By usage level in Oklahoma
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.23 | $7.00 | $84.10 |
| Typical (8 hrs/day) | $0.46 | $14.01 | $168 |
| Heavy (16 hrs/day) | $0.92 | $28.02 | $336 |
Oklahoma 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 Oklahoma?
At Oklahoma's current average residential rate of 14.4¢/kWh (July 2026), a evaporative (swamp) cooler with typical usage costs about $0.46 per day, $14.01 per month, or $168 per year.
Is running a evaporative (swamp) cooler in Oklahoma more expensive than average?
No — it's cheaper. Oklahoma's rate is about 21% below the U.S. average: $14.01 per month here versus $17.80 nationally.
What does electricity cost in Oklahoma right now?
Oklahoma residents pay an average of 14.4¢ per kWh as of July 2026 — the 10th cheapest rate of the 51 U.S. jurisdictions we track.