How much does an electric lawn mower cost per month in Washington?

About 51.0¢ a month, assuming 0.80 kWh per cycle, 1 cycles a week at 14.71¢/kWh.

How many kilowatt-hours does an electric lawn mower use?

Roughly 42 kWh a year under these assumptions.

Is that expensive compared with other states?

Washington has the 13th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $7.62 a year.

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Cost to run an electric lawn mower in Washington (July 2026 rates)

At 14.71¢ per kilowatt-hour — Washington's average residential price in July 2026 — running an electric lawn mower costs $6.12 a year. That is 20% less than the national average of $7.62. Washington's residential rate is up 9.4% from July 2025, which moves this appliance from $5.60 to $6.12 a year.

Per cycle: 11.8¢
Per day: 1.7¢
Per month: 51.0¢
Per year: $6.12

Assumption: 0.80 kWh per cycle, 1 cycles a week — 42 kWh a year. One mow of a typical suburban lawn, battery or corded. Use the calculator to swap in the numbers from your own model.

How Washington compares

Washington pays 14.71¢/kWh, the 13th cheapest residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $1.50 less a year than the typical U.S. household pays for the same use. Running the same electric lawn mower costs $5.29 a year in Louisiana and $19.97 in Hawaii, so where you live changes this bill by $14.68 a year.

State	Rate	Per month	Per year
Wyoming	14.36¢	49.8¢	$5.97
Mississippi	14.54¢	50.4¢	$6.05
Washington	14.71¢	51.0¢	$6.12
Montana	14.99¢	52.0¢	$6.24
Florida	15.03¢	52.1¢	$6.25

States ranked by average residential price, cheapest first. See all 51 states for an electric lawn mower.

What else costs about the same in Washington

Rice cooker$6.18 a year in WA Electric pressure cooker$6.18 a year in WA Security camera$6.44 a year in WA

Cutting the number down

A season of mowing costs less than a single tank of gasoline, which is the real argument for the switch.
A sharp blade cuts the load on the motor and the runtime for the same lawn.

Questions

How much does an electric lawn mower cost per month in Washington?: About 51.0¢ a month, assuming 0.80 kWh per cycle, 1 cycles a week at 14.71¢/kWh.
How many kilowatt-hours does an electric lawn mower use?: Roughly 42 kWh a year under these assumptions.
Is that expensive compared with other states?: Washington has the 13th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $7.62 a year.