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Why electric bills spike in summer

Updated with August 2026 data · Editor: Otto Pop · Methodology

Summer bills are high mainly because homes use more electricity, not because of a single rate change. According to the EIA, air conditioning is one of the largest uses of electricity in homes, and heating and cooling together account for the largest annual uses in the residential sector. In August 2026 the average U.S. home used 1,152 kWh and paid $209, compared with an average of $158 a month over the past year.

Is it the price or the usage?

Mostly usage. The EIA notes that prices are usually highest in summer because demand is high and more expensive generating sources are added, but most households pay a rate that changes by season rather than by the hour. The bigger swing comes from how many kWh you use: a home using 1,152 kWh at the U.S. average price of 18.16¢/kWh pays $209, and the bill moves almost one for one with usage.

Which states use the most electricity?

States with long, hot summers and heavy air conditioning use tend to top the usage list in summer months. In August 2026, the latest month of data:

  • Arizona: 1,789 kWh a month, average bill $269
  • Louisiana: 1,763 kWh, average bill $227
  • Oklahoma: 1,696 kWh, average bill $251
  • Texas: 1,670 kWh, average bill $266
  • Mississippi: 1,655 kWh, average bill $239

At the other end, the typical home in Alaska used 473 kWh.

How much higher than a year ago?

The average U.S. bill was $209 in August 2026, compared with $188 in the same month a year earlier. Comparing the same month across years removes most of the seasonal effect.

How do I compare my summer bill fairly?

Compare it with the same month last year, not with last month, because usage changes a lot with the season. Each state page on this site shows a chart of the past year and its highest and lowest months; start from the ranking of all states, where Wyoming had the lowest average bill ($118) in August 2026.

Estimate your own bill

Enter your summer kWh and your all-in price per kWh in the electric bill calculator, then try a lower usage figure to see what a higher thermostat setting or a more efficient air conditioner could save. The U.S. average of $209 in August 2026 is a useful reference point.

Sources

Background reading: EIA, Electricity explained: use of electricity; EIA, Electricity explained: prices and factors affecting prices.

General information based on public data, not financial advice. Your own bill depends on your utility, rate plan, fixed charge, use and any taxes added to it. Spotted an error? Tell us and we will correct it publicly.