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Summer cooling costs: what the air conditioner does to the bill

Winter has an EIA outlook of its own; summer's cost story is written on the electric meter. EIA estimates that air conditioning accounts for about 18% of annual household electricity use, that nearly nine in ten U.S. homes are air conditioned, and that monthly home electricity consumption typically peaks in July and August when cooling demand is highest. The states built for cooling show it in their annual figures: Louisiana households averaged 1,202 kWh a month in 2024, Mississippi 1,156 and Tennessee 1,154, against a U.S. average of 863 — and July's national residential price, 18.31¢ per kWh in 2026, sits well above the 16.48¢ annual average.

Prices, use and bills: EIA-861 Table 5A (2024) and Electric Power Monthly Table 5.6.A (July 2026, preliminary). Annual average use blends winter and summer months; a peak summer month in these states runs well above the figure shown.

Sizing the air conditioner from published figures

EIA does not publish a per-household "air conditioning bill," and this page does not invent one — but its published shares let a household size its own. Worked with national figures, and labeled as arithmetic throughout: the average U.S. home used 863 kWh a month in 2024, or about 10,356 kWh across the year. At EIA's estimate that air conditioning is about 18% of annual household electricity use, roughly 1,860 of those kilowatt-hours are cooling. Priced at the 2024 average of 16.48¢, that is about $307 a year of air conditioning for the average home — an average that blends uncooled northern homes with Gulf Coast homes where cooling runs most of the year and the true figure is several times higher. EIA's survey work adds the texture: about three-quarters of air-conditioned homes use central equipment, 87% of homes use fans (which add their own small summer load alongside dehumidifiers and pool pumps), and individual window or wall units are more common in the northern and marine-climate regions, in apartments and mobile homes, and in older houses where central systems are harder to retrofit.

Why summer bills surprise people in cheap-electricity states

The table's central lesson is that cooling cost is a usage story before it is a price story. Louisiana has nearly the cheapest electricity in America at 11.73¢ and still lands on an almost exactly average bill, because its households use 39% more electricity than the national average across the year — and that annual figure already dilutes the summer peak with winter months. Alabama shows the expensive version of the same pattern: a below-average price of 15.18¢ paired with 1,143 kWh of monthly use produced the third-highest average bill in the country, $173.50. July adds a second squeeze: the monthly price itself tends to print above the annual average (18.31¢ nationally in July 2026 against 16.48¢ for 2024 as a whole, and higher July snapshots in every state in the table), so the household's biggest usage month is also priced at a premium snapshot. Comparing a July bill with an annual average month — the mistake our bill-reading guide warns against — therefore overstates a household's problem in summer just as comparing a January gas bill does in winter.

Reading your own cooling cost honestly

Three checks turn the published averages into a personal number. First, take two bills — your highest summer month and a mild spring or autumn month with neither heating nor cooling load — and subtract: the difference in kWh is a reasonable household-level estimate of a peak cooling month, priced by multiplying by the effective per-kWh rate on the bill itself. Second, compare like months year over year rather than month over month; EIA's state snapshots are monthly for exactly this reason, and July-to-July is the honest comparison. Third, remember what the average price contains — fixed customer charges and riders blended into the per-kWh figure — so the marginal cost of one extra cooling kWh on your own tariff is usually somewhat below the state average, while a household on a time-of-use plan can pay materially more than the average during afternoon peak hours. What no EIA series can tell you is your home's insulation, shading or equipment efficiency; those sit behind the usage figure, and they are why two neighbours on the same tariff can post summer bills a factor of two apart.

Sources: EIA — Electric Sales, Revenue & Average Price 2024, Table 5A (Form EIA-861) · EIA — Electric Power Monthly, Table 5.6.A (July 2026) · EIA — Today in Energy: Air conditioning and other appliances increase residential electricity use in the summer (RECS). Last verified: October 2026 — energy prices move with seasons and markets; confirm the current rate on your own bill.

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