How much does a hot tub cost per month in New Hampshire?

About $56.27 a month, assuming 2,500 kWh a year at 27.01¢/kWh.

How many kilowatt-hours does a hot tub use?

Roughly 2,500 kWh a year under these assumptions.

Is that expensive compared with other states?

New Hampshire has the 8th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $458 a year.

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Cost to run a hot tub in New Hampshire (June 2026 rates)

At 27.01¢ per kilowatt-hour — New Hampshire's average residential price in June 2026 — running a hot tub costs $675 a year. That is 47% more than the national average of $458. New Hampshire's residential rate is up 14.9% from June 2025, which moves this appliance from $588 to $675 a year.

Per day: $1.85
Per month: $56.27
Per year: $675

Assumption: 2,500 kWh a year. A well-insulated 400-gallon tub held at 100 F year-round in a moderate climate. A poorly insulated tub in a cold climate can double this. Use the calculator to swap in the numbers from your own model.

How New Hampshire compares

New Hampshire pays 27.01¢/kWh, the 8th most expensive residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $217 more a year than the typical U.S. household pays for the same use. Running the same hot tub costs $328 a year in Nevada and $1,318 in Hawaii, so where you live changes this bill by $990 a year.

State	Rate	Per month	Per year
Vermont	24.44¢	$50.92	$611
New Jersey	24.95¢	$51.98	$624
New Hampshire	27.01¢	$56.27	$675
Alaska	28.21¢	$58.77	$705
Rhode Island	29.23¢	$60.90	$731

States ranked by average residential price, cheapest first. See all 51 states for a hot tub.

What else costs about the same in New Hampshire

Central air conditioner$635 a year in NH Heat pump$583 a year in NH Pool pump$467 a year in NH

Cutting the number down

A good cover is the whole ballgame. Most of the energy replaces heat lost from the surface, not heat delivered to people.
Holding temperature usually beats cooling down and reheating, because reheating a large mass of water is expensive.
A waterlogged cover has lost its insulation value and quietly doubles the standing loss.

Questions

How much does a hot tub cost per month in New Hampshire?: About $56.27 a month, assuming 2,500 kWh a year at 27.01¢/kWh.
How many kilowatt-hours does a hot tub use?: Roughly 2,500 kWh a year under these assumptions.
Is that expensive compared with other states?: New Hampshire has the 8th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $458 a year.