Cost to Run a Evaporative (Swamp) Cooler in Louisiana
Louisiana's average residential electricity rate is 14.2¢/kWh as of May 2026 — the 10th cheapest in the country, 23% below the U.S. average. At typical usage (8 hours/day), a evaporative (swamp) cooler here costs $13.81 per month.
Per hour
5.7¢
at 100–800 W
Per day
$0.45
8 hours/day
Per month
$13.81
97 kWh
Per year
$166
1,168 kWh
By usage level in Louisiana
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.23 | $6.91 | $82.93 |
| Typical (8 hrs/day) | $0.45 | $13.81 | $166 |
| Heavy (16 hrs/day) | $0.91 | $27.63 | $332 |
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 14.2¢/kWh (May 2026), a evaporative (swamp) cooler with typical usage costs about $0.45 per day, $13.81 per month, or $166 per year.
Is running a evaporative (swamp) cooler in Louisiana more expensive than average?
No — it's cheaper. Louisiana's rate is about 23% below the U.S. average: $13.81 per month here versus $17.90 nationally.
What does electricity cost in Louisiana right now?
Louisiana residents pay an average of 14.2¢ per kWh as of May 2026 — the 10th cheapest rate of the 51 U.S. jurisdictions we track.