AC running cost in New Hampshire
A typical 2,000 sq ft New Hampshire home with average insulation and a 14 SEER2 central AC uses about 339 kWh a year for cooling: roughly $91, peaking in Jul at about $42.
At a glance
New Hampshire ranks 37th of 48 contiguous states for estimated yearly AC running cost. Its residential electricity price (26.79¢/kWh) is 47% higher than the U.S. average (18.19¢, EIA) and ranks 7th highest. Its climate brings 299 cooling degree days a year (42nd most), so cooling demand is 73% lower than the 48-state average. Jul is the peak month, carrying about 46% of the year's AC cost; the meaningful cooling season runs Jun–Aug.
| Estimated yearly AC cost (2,000 sq ft, 14 SEER2) | $91 |
| Average across 48 contiguous states (unweighted) | $207 |
| Average residential price, July 2026 YTD | 26.79¢/kWh (U.S.: 18.19¢) |
| Single month, July 2026 | 26.6¢/kWh |
| Annual cooling degree days (NOAA, 1991–2020, base 65°F) | 299 (48-state avg 1,099) |
| Yearly savings, 18 vs 14 SEER2 | $20 |
We haven't verified utility-specific tariffs for New Hampshire yet, so this page uses the EIA statewide average. Your utility's rate may differ, so enter it in the calculator below.
Sources: EIA Electric Power Monthly, Table 5.6.B and Table 5.6.A; NOAA NCEI nClimDiv. Statewide averages hide large local differences.
Compared with neighboring states
| State | Price | CDD/yr | Yearly AC cost |
|---|---|---|---|
| Massachusetts | 30.14¢ | 516 | $176 |
| New Hampshire | 26.79¢ | 299 | $91 |
| Maine | 29.99¢ | 238 | $81 |
| Vermont | 23.95¢ | 223 | $61 |
Same home (2,000 sq ft, average insulation, 14 SEER2) in each state.
Month by month
| Month | CDD | kWh | Cost |
|---|---|---|---|
| Jan | 0 | 0 | $0 |
| Feb | 0 | 0 | $0 |
| Mar | 0 | 0 | $0 |
| Apr | 0 | 0 | $0 |
| May | 5 | 5 | $1 |
| Jun | 39 | 44 | $12 |
| Jul ★ | 138 | 156 | $42 |
| Aug | 105 | 119 | $32 |
| Sep | 13 | 15 | $4 |
| Oct | 0 | 0 | $0 |
| Nov | 0 | 0 | $0 |
| Dec | 0 | 0 | $0 |
★ peak month.
Yearly cooling cost by home size and SEER2
| Home | 13 SEER2 | 14 SEER2 | 16 SEER2 | 18 SEER2 |
|---|---|---|---|---|
| 1,200 sq ft | $59 | $54 | $48 | $42 |
| 1,600 sq ft | $78 | $73 | $63 | $56 |
| 2,000 sq ft | $98 | $91 | $79 | $71 |
| 2,500 sq ft | $122 | $113 | $99 | $88 |
| 3,000 sq ft | $146 | $136 | $119 | $106 |
Average insulation; 26.79¢/kWh.
AC monthly running cost calculator
| Month | Cooling degree days | kWh | Cost |
|---|
Price defaults to the state's EIA average residential price (July 2026 YTD); edit it to match your bill. Climate: NOAA state cooling degree days, 1991–2020 average. How this works.