Cost to Run a Window Air Conditioner in Washington, D.C.
Washington, D.C.'s average residential electricity rate is 25.2¢/kWh as of July 2026 — the 42nd cheapest in the country, 38% above the U.S. average. At typical usage (8 hours/day), a window air conditioner here costs $55.16 per month.
Per hour
$0.23
at 500–1,500 W
Per day
$1.81
8 hours/day
Per month
$55.16
219 kWh
Per year
$662
2,628 kWh
By usage level in Washington, D.C.
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $0.91 | $27.58 | $331 |
| Typical (8 hrs/day) | $1.81 | $55.16 | $662 |
| Heavy (16 hrs/day) | $3.63 | $110 | $1,325 |
Washington, D.C. vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a window air conditioner in Washington, D.C.?
At Washington, D.C.'s current average residential rate of 25.2¢/kWh (July 2026), a window air conditioner with typical usage costs about $1.81 per day, $55.16 per month, or $662 per year.
Is running a window air conditioner in Washington, D.C. more expensive than average?
Yes. Washington, D.C.'s electricity costs about 38% more than the U.S. average, so the same usage costs $55.16 per month here versus $40.06 nationally.
What does electricity cost in Washington, D.C. right now?
Washington, D.C. residents pay an average of 25.2¢ per kWh as of July 2026 — the 42nd cheapest rate of the 51 U.S. jurisdictions we track.