Cost to Run a Central Air Conditioner in Missouri
Missouri's average residential electricity rate is 16.1¢/kWh as of July 2026 — the 25th cheapest in the country, 12% below the U.S. average. At typical usage (8 hours/day), a central air conditioner here costs $137 per month.
Per hour
$0.56
at 2,000–5,000 W
Per day
$4.51
8 hours/day
Per month
$137
851 kWh
Per year
$1,645
10,220 kWh
By usage level in Missouri
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $2.25 | $68.52 | $823 |
| Typical (8 hrs/day) | $4.51 | $137 | $1,645 |
| Heavy (16 hrs/day) | $9.02 | $274 | $3,291 |
Missouri vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a central air conditioner in Missouri?
At Missouri's current average residential rate of 16.1¢/kWh (July 2026), a central air conditioner with typical usage costs about $4.51 per day, $137 per month, or $1,645 per year.
Is running a central air conditioner in Missouri more expensive than average?
No — it's cheaper. Missouri's rate is about 12% below the U.S. average: $137 per month here versus $156 nationally.
What does electricity cost in Missouri right now?
Missouri residents pay an average of 16.1¢ per kWh as of July 2026 — the 25th cheapest rate of the 51 U.S. jurisdictions we track.