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

About $55.42 a month, assuming 2,500 kWh a year at 26.60¢/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 (July 2026 rates)

At 26.60¢ per kilowatt-hour — New Hampshire's average residential price in July 2026 — running a hot tub costs $665 a year. That is 45% more than the national average of $458. New Hampshire's residential rate is up 16.7% from July 2025, which moves this appliance from $570 to $665 a year.

Per day: $1.82
Per month: $55.42
Per year: $665

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 26.60¢/kWh, the 8th most expensive residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $207 more a year than the typical U.S. household pays for the same use. Running the same hot tub costs $318 a year in Louisiana and $1,200 in Hawaii, so where you live changes this bill by $882 a year.

State	Rate	Per month	Per year
New Jersey	25.19¢	$52.48	$630
District of Columbia	25.21¢	$52.52	$630
New Hampshire	26.60¢	$55.42	$665
Rhode Island	28.29¢	$58.94	$707
Alaska	28.83¢	$60.06	$721

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$626 a year in NH Heat pump$575 a year in NH Pool pump$460 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 $55.42 a month, assuming 2,500 kWh a year at 26.60¢/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.