Cost to run a central air conditioner in District of Columbia

$0.91/hour

Central Air Conditioner at 3,500 W in District of Columbia (25.98¢/kWh) · $221.14/month at 8 h/day

By hours of use

Use	Per day	Per month	Per year
1 h/day	$0.91	$27.64	$331.89
2 h/day	$1.82	$55.29	$663.79
4 h/day	$3.64	$110.57	$1,327.58
8 h/day	$7.27	$221.14	$2,655.16
12 h/day	$10.91	$331.71	$3,982.73
24 h/day	$21.82	$663.43	$7,965.47

A 3-ton central AC typically draws 3,000-4,000 W while running; SEER rating and duct losses matter.

How much does it cost to run a central air conditioner in District of Columbia?

At 3,500 W and 25.98¢/kWh: $0.91 per hour, $7.27 per day and $221.14 per month at 8 h/day.

How does District of Columbia compare with other states?

The same use costs $108.27/month in Nevada (cheapest) and $401.60/month in Hawaii (most expensive); the US average is $154.58.

Price: EIA Electric Power Monthly, Table 5.6.A (residential, August 2026 preliminary; released October 23, 2026).

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