Ideas & guides · Budget & buying
How Much Does It Cost to Run Halloween Decorations for a Month?
If the yard is lit every night through October, what does that actually add to the electricity bill?
About $4.50 to $10 for the month on a normal display running six hours a night through all of October. A fully loaded corner lot at the high tier came to $10.23 and a small urban lot at the cheapest tier to $4.50, at the US average residential rate of 18.34 cents per kilowatt hour in September 2026. The cost is the inflatable blowers; the lights barely register.
6 minute read. Checked 29 September 2026.
The arithmetic, so you can redo it with your own rate
Amps times 120 volts gives watts. Watts times hours divided by a thousand gives kilowatt hours. Kilowatt hours times your rate gives the bill.
A corner lot at the cheapest tier totals 2.20 A, which is 264 watts. Six hours a night for thirty one nights is 186 hours, so 49.1 kilowatt hours, which at 18.34 cents is $9.01 for the month.
Electricity rates vary enormously by state, from roughly half the national average to well over double it, so the sum matters more than the answer. Take your own rate off a bill and put it in the last step.
A real plan, all four tiers, October
| Tier | What the kit costs | Draw | Electricity for the month |
|---|---|---|---|
| Cheapest | $242.93 | 2.20 A | $9.01 |
| Mid | $485.89 | 2.40 A | $9.82 |
| High | $699.38 | 2.50 A | $10.23 |
| Luxury | $963.35 | 1.30 A | $5.32 |
The Old Cemetery on a corner lot, six hours a night for thirty one nights. The kit cost and the draw are read from the plan as this page loads; the electricity column is those amps costed at 18.34 cents per kilowatt hour, the US residential average in September 2026, so put your own rate through the sum above. Note the last row: the most expensive display costs the least to run.
Why the luxury tier is cheaper to run
It is not a rounding error and it is not a mistake in the table. The expensive tiers spend their money on static lit pieces: metal-frame figures, lit fences, spotlights, commercial-grade LED. Those draw very little and they draw it efficiently.
The cheaper tiers lean on inflatables, because an inflatable is the most apparent size per dollar you can buy. An inflatable has a blower that runs every second the thing is up, and that blower is essentially the entire electrical load of a Halloween yard.
So the pattern is the opposite of the intuition. Buying cheap costs slightly more to run, month after month, and the gap is about five dollars a season. That is not a reason to buy the expensive one. It is a reason to know that the running cost is not what is expensive about any of this.
What one inflatable costs to run for October
| Piece | Draw | Electricity, 6h a night, 31 nights |
|---|---|---|
| 9 ft Inflatable Spider | 1.00 A | $4.09 |
| Inflatable Rising Zombie Scene | 1.00 A | $4.09 |
| 10 ft Inflatable UFO | 1.20 A | $4.91 |
| 12 ft Inflatable Alien | 1.50 A | $6.14 |
| C9 LED string set, 25 bulbs | 0.20 A | $0.82 |
| Solar path stakes | 0 A | Nothing, they are not on the circuit |
Four to six dollars each for the month. A yard with four inflatables is spending about twenty dollars on electricity across October and is also already a two-circuit display. The reason a blower costs so much more than a light set is that it is a continuous draw: it pulls the whole time the piece is up rather than cycling.
Six hours a night is the assumption above, dusk to about midnight. Almost nobody is looking at your yard after eleven, and a plug-in timer costs a few dollars once. Cutting from eight hours to five takes roughly a third off every figure on this page and nobody who matters will notice. It also stops the display being the reason a breaker trips at two in the morning with nobody awake to reset it.
And the electricity is the smaller half of what a timer saves. Blowers wear out on run hours rather than on seasons, so the same timer roughly doubles how many seasons an inflatable lasts — which is worth far more than the few dollars it takes off the bill.
Where this usually goes wrong
Worrying about the lights
An LED string set costs about eighty cents to run for the whole of October. If you are economising, the lights are not where the money is. The blowers are.
Leaving it on all night
Dusk to midnight is the window anybody actually sees. A timer pays for itself in the first season and removes the overnight breaker risk at the same time.
Assuming running cost should drive the buying decision
The entire month is single-figure dollars. A piece that costs four dollars more to run and is the thing you actually wanted is not a bad buy. Decide on the purchase price and the circuit load instead.
See where this goes on your yard shape: every plan totals the draw of the pieces in it, so the cheapest tier tells you what it costs to buy and what it costs to run before you commit to either.
Read next
How Many Inflatables Can You Run on One Circuit?
Four, and that is before the lights. The blower runs all night, which changes the arithmetic from the one people do in their head.
Read itCan I Leave Holiday Decorations On All Night?
Safely, yes, on GFCI and within the circuit load. Sensibly, no. A twenty dollar timer halves the running cost and roughly doubles the life of an inflatable blower.
Read itHow Do I Decorate My Yard for Halloween on a Budget?
Under $250 for a complete yard whatever the lot shape, and nearer $120 on a small one. That is the whole display, not a starter kit, and a third of it is usually free builds.
Read itmore like this
New guides go up through the season
Each one is a lot shape or a problem worked all the way through, the same as this one, and they are all free to read. No schedule worth promising, but they keep coming.