How much does an LED bulb cost per month in Wyoming?

About 19.8¢ a month, assuming 9 W, 5 hours a day, 365 days a year at 14.43¢/kWh.

How many kilowatt-hours does an LED bulb use?

Roughly 16 kWh a year under these assumptions, or 0.01 kWh for every hour it runs.

Is that expensive compared with other states?

Wyoming has the 11th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $2.98 a year.

Home › Led bulb › Wyoming

Cost to run an LED bulb in Wyoming (August 2026 rates)

At 14.43¢ per kilowatt-hour — Wyoming's average residential price in August 2026 — running an LED bulb costs $2.37 a year. That is 21% less than the national average of $2.98. Wyoming's residential rate is up 0.7% from August 2025, which moves this appliance from $2.35 to $2.37 a year.

Per hour: 0.1¢
Per day of use: 0.6¢
Per month: 19.8¢
Per year: $2.37

Assumption: 9 W, 5 hours a day, 365 days a year — 16 kWh a year. A 9 W LED producing about 800 lumens, the equivalent of an old 60 W incandescent. Use the calculator to swap in the numbers from your own model.

How Wyoming compares

Wyoming pays 14.43¢/kWh, the 11th cheapest residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to 61.3¢ less a year than the typical U.S. household pays for the same use. Running the same LED bulb costs $2.09 a year in Nevada and $7.75 in Hawaii, so where you live changes this bill by $5.66 a year.

State	Rate	Per month	Per year
Arkansas	14.37¢	19.7¢	$2.36
Mississippi	14.43¢	19.8¢	$2.37
Wyoming	14.43¢	19.8¢	$2.37
Washington	14.63¢	20.0¢	$2.40
Oklahoma	14.82¢	20.3¢	$2.43

States ranked by average residential price, cheapest first. See all 51 states for an LED bulb.

What else costs about the same in Wyoming

Clothes iron$2.38 a year in WY String of christmas lights97.4¢ a year in WY Smart speaker$3.79 a year in WY

Cutting the number down

Per bulb the cost is trivial; a house has 40 of them, and that is the number that matters.
Dimming an LED does cut power draw, though not perfectly in proportion to the light output.

Questions

How much does an LED bulb cost per month in Wyoming?: About 19.8¢ a month, assuming 9 W, 5 hours a day, 365 days a year at 14.43¢/kWh.
How many kilowatt-hours does an LED bulb use?: Roughly 16 kWh a year under these assumptions, or 0.01 kWh for every hour it runs.
Is that expensive compared with other states?: Wyoming has the 11th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $2.98 a year.