Cost to Run a Evaporative (Swamp) Cooler in Louisiana
Louisiana's average residential electricity rate is 12.7¢/kWh as of July 2026 — the 1st cheapest in the country, 31% below the U.S. average. At typical usage (8 hours/day), a evaporative (swamp) cooler here costs $12.35 per month.
Per hour
5.1¢
at 100–800 W
Per day
$0.41
8 hours/day
Per month
$12.35
97 kWh
Per year
$148
1,168 kWh
By usage level in Louisiana
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.20 | $6.18 | $74.17 |
| Typical (8 hrs/day) | $0.41 | $12.35 | $148 |
| Heavy (16 hrs/day) | $0.81 | $24.71 | $297 |
Louisiana 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 Louisiana?
At Louisiana's current average residential rate of 12.7¢/kWh (July 2026), a evaporative (swamp) cooler with typical usage costs about $0.41 per day, $12.35 per month, or $148 per year.
Is running a evaporative (swamp) cooler in Louisiana more expensive than average?
No — it's cheaper. Louisiana's rate is about 31% below the U.S. average: $12.35 per month here versus $17.80 nationally.
What does electricity cost in Louisiana right now?
Louisiana residents pay an average of 12.7¢ per kWh as of July 2026 — the 1st cheapest rate of the 51 U.S. jurisdictions we track.