How much does a string of Christmas lights cost per month in North Dakota?

About 7.5¢ a month, assuming 25 W, 6 hours a day, 45 days a year at 13.31¢/kWh.

How many kilowatt-hours does a string of Christmas lights use?

Roughly 7 kWh a year under these assumptions, or 0.03 kWh for every hour it runs.

Is that expensive compared with other states?

North Dakota has the 3rd cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $1.23 a year.

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Cost to run a string of Christmas lights in North Dakota (August 2026 rates)

At 13.31¢ per kilowatt-hour — North Dakota's average residential price in August 2026 — running a string of Christmas lights costs 89.8¢ a year. That is 27% less than the national average of $1.23. North Dakota's residential rate is up 2.6% from August 2025, which moves this appliance from 87.5¢ to 89.8¢ a year.

Per hour: 0.3¢
Per day of use: 2.0¢
Per month: 7.5¢
Per year: 89.8¢

Assumption: 25 W, 6 hours a day, 45 days a year — 7 kWh a year. Per 100-count LED string. A 100-count incandescent string draws roughly 40 W, and older C9 bulbs far more. Use the calculator to swap in the numbers from your own model.

How North Dakota compares

North Dakota pays 13.31¢/kWh, the 3rd cheapest residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to 32.7¢ less a year than the typical U.S. household pays for the same use. Running the same string of Christmas lights costs 85.9¢ a year in Nevada and $3.18 in Hawaii, so where you live changes this bill by $2.33 a year.

State	Rate	Per month	Per year
Nevada	12.72¢	7.2¢	85.9¢
Louisiana	12.87¢	7.2¢	86.9¢
North Dakota	13.31¢	7.5¢	89.8¢
Utah	13.31¢	7.5¢	89.8¢
Idaho	13.37¢	7.5¢	90.2¢

States ranked by average residential price, cheapest first. See all 51 states for a string of Christmas lights.

What else costs about the same in North Dakota

Led bulb$2.19 a year in ND Clothes iron$2.20 a year in ND Smart speaker$3.50 a year in ND

Cutting the number down

A timer that runs the display six hours instead of twelve halves the season's cost with nobody noticing.
Incandescent strings are where holiday bills come from; LED strings of the same length are a fraction of the draw.

Questions

How much does a string of Christmas lights cost per month in North Dakota?: About 7.5¢ a month, assuming 25 W, 6 hours a day, 45 days a year at 13.31¢/kWh.
How many kilowatt-hours does a string of Christmas lights use?: Roughly 7 kWh a year under these assumptions, or 0.03 kWh for every hour it runs.
Is that expensive compared with other states?: North Dakota has the 3rd cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $1.23 a year.