Billowatt

Cost to Run a Humidifier in Delaware

Delaware's average residential electricity rate is 18.8¢/kWh as of April 2026 — the 33rd cheapest in the country, 0% above the U.S. average. At typical usage (10 hours/day), a humidifier here costs $2.29 per month.

Per hour

0.8¢

at 20–300 W

Per day

7.5¢

10 hours/day

Per month

$2.29

12 kWh

Per year

$27.45

146 kWh

By usage level in Delaware

Usage Per day Per month Per year
Light (5 hrs/day) 3.8¢ $1.14 $13.72
Typical (10 hrs/day) 7.5¢ $2.29 $27.45
Heavy (20 hrs/day) $0.15 $4.57 $54.90

Delaware vs. the rest of the country

Monthly cost at typical usage.

Delaware $2.29
South average $2.05
U.S. average $2.29

Frequently asked questions

How much does it cost to run a humidifier in Delaware?

At Delaware's current average residential rate of 18.8¢/kWh (April 2026), a humidifier with typical usage costs about 7.5¢ per day, $2.29 per month, or $27.45 per year.

Is running a humidifier in Delaware more expensive than average?

It's almost exactly the U.S. average: $2.29 per month here versus $2.29 nationally.

What does electricity cost in Delaware right now?

Delaware residents pay an average of 18.8¢ per kWh as of April 2026 — the 33rd cheapest rate of the 51 U.S. jurisdictions we track.

Humidifier costs in nearby states

What else costs to run in Delaware

See the full Delaware electricity cost guide →