Cost to Run a Evaporative (Swamp) Cooler in Wyoming
Wyoming's average residential electricity rate is 14.8¢/kWh as of May 2026 — the 14th cheapest in the country, 20% below the U.S. average. At typical usage (8 hours/day), a evaporative (swamp) cooler here costs $14.40 per month.
Per hour
5.9¢
at 100–800 W
Per day
$0.47
8 hours/day
Per month
$14.40
97 kWh
Per year
$173
1,168 kWh
By usage level in Wyoming
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.24 | $7.20 | $86.43 |
| Typical (8 hrs/day) | $0.47 | $14.40 | $173 |
| Heavy (16 hrs/day) | $0.95 | $28.79 | $346 |
Wyoming 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 Wyoming?
At Wyoming's current average residential rate of 14.8¢/kWh (May 2026), a evaporative (swamp) cooler with typical usage costs about $0.47 per day, $14.40 per month, or $173 per year.
Is running a evaporative (swamp) cooler in Wyoming more expensive than average?
No — it's cheaper. Wyoming's rate is about 20% below the U.S. average: $14.40 per month here versus $17.90 nationally.
What does electricity cost in Wyoming right now?
Wyoming residents pay an average of 14.8¢ per kWh as of May 2026 — the 14th cheapest rate of the 51 U.S. jurisdictions we track.