Massachusetts electric bills

Data through August 2026. Updated November 6, 2026.

What Massachusetts homes pay

Residential customers in Massachusetts paid an average of 30.5¢ per kWh in August 2026, about flat compared with 30.6¢ in August 2025. Compared with August 2023, when it was 28.0¢, the price has moved +8.8%. Over the 12 months through August 2026 the average was 30.4¢, which puts Massachusetts above the middle state at 15.8¢ and 3rd highest among the states and DC. States closest in price are Maine (29.6¢), Rhode Island (29.5¢), New York (28.5¢), California (32.6¢).

Monthly average revenue per kWh, all residential customers. Source: EIA Form EIA-861M.

The highest monthly average in our records is 32.7¢ (March 2023) and the lowest is 27.4¢ (July 2023). These averages include fixed charges, so they typically move a little with the seasons even without a rate change: usage rises in peak months and spreads those fixed costs over more kWh. Your own price depends on your utility and plan, and can differ from the state figure by a wide margin.

How weather moves Massachusetts bills

We compared monthly federal usage records with NOAA temperature data for Massachusetts. For the average home, each extra 100 cooling degree days has gone with about 128 more kWh in a month, and each extra 100 heating degree days with about 17 more kWh. In Massachusetts, heat has moved usage more than cold has, per degree day. At 30.4¢, 100 cooling degree days works out near $39 and 100 heating degree days near $5.

Put the actual weather and prices together, and an average-use home's bill over the past 12 months would have peaked around August at about $220 and bottomed around May at about $142. That is a seasonal swing of about $78 with nothing unusual going on, so comparing an August bill to a May bill says little. Use the same month a year apart when you can.

Model estimates using state price and degree days, not actual billed amounts. The model's accuracy on data it had not seen (R²) was 0.65. How we test this.

Reading a state average

A state figure is a useful yardstick but doesn't describe your bill. Different utilities within Massachusetts can charge noticeably different prices, and your plan may include tiers, time-of-use pricing or a separate supplier. If your all-in price (total bill divided by kWh) sits far above 30.5¢, read your plan and fixed charges closely. In a low-usage month, a fixed charge alone can do that. Our guide to reading your bill shows which lines to compare, and the high bill checklist covers what to do if usage is the issue.

Common questions

What is the average electricity price in Massachusetts?

The average residential price was 30.5¢ per kWh in August 2026, the latest federal figure. The 12-month average was 30.4¢. Your own rate depends on your utility and plan.

Are Massachusetts electric rates going up?

The state average was about flat compared with 30.6¢ a year earlier. One month's comparison is not a forecast, and it can differ from your utility's change.

How much does weather affect a Massachusetts electric bill?

About 128 kWh for each extra 100 cooling degree days and 17 kWh for each extra 100 heating degree days, for an average home in the state. Your home may respond quite differently.

Which month has the highest electric bill in Massachusetts?

Over the past 12 months our model put the average peak near August and the low near May. This is a statewide estimate and can vary by location and heating type.

Where does this data come from?

Prices come from the U.S. Energy Information Administration's Form EIA-861M through August 2026. Weather comes from NOAA, through October 2026. Both are statewide figures.