Cost to Run a Evaporative (Swamp) Cooler in Oklahoma
Oklahoma's average residential electricity rate is 13.3¢/kWh as of April 2026 — the 4th cheapest in the country, 29% below the U.S. average. At typical usage (8 hours/day), a evaporative (swamp) cooler here costs $12.94 per month.
Per hour
5.3¢
at 100–800 W
Per day
$0.43
8 hours/day
Per month
$12.94
97 kWh
Per year
$155
1,168 kWh
By usage level in Oklahoma
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.21 | $6.47 | $77.67 |
| Typical (8 hrs/day) | $0.43 | $12.94 | $155 |
| Heavy (16 hrs/day) | $0.85 | $25.88 | $311 |
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 13.3¢/kWh (April 2026), a evaporative (swamp) cooler with typical usage costs about $0.43 per day, $12.94 per month, or $155 per year.
Is running a evaporative (swamp) cooler in Oklahoma more expensive than average?
No — it's cheaper. Oklahoma's rate is about 29% below the U.S. average: $12.94 per month here versus $18.29 nationally.
What does electricity cost in Oklahoma right now?
Oklahoma residents pay an average of 13.3¢ per kWh as of April 2026 — the 4th cheapest rate of the 51 U.S. jurisdictions we track.