AC running cost in Missouri
A typical 2,000 sq ft Missouri home with average insulation and a 14 SEER2 central AC uses about 1,431 kWh a year for cooling: roughly $200, peaking in Jul at about $61.
At a glance
Missouri ranks 21st of 48 contiguous states for estimated yearly AC running cost. Its residential electricity price (13.96¢/kWh) is 23% lower than the U.S. average (18.19¢, EIA) and ranks 37th highest. Its climate brings 1,265 cooling degree days a year (15th most), so cooling demand is 15% higher than the 48-state average. Jul is the peak month, carrying about 30% of the year's AC cost; the meaningful cooling season runs May–Sep.
| Estimated yearly AC cost (2,000 sq ft, 14 SEER2) | $200 |
| Average across 48 contiguous states (unweighted) | $207 |
| Average residential price, July 2026 YTD | 13.96¢/kWh (U.S.: 18.19¢) |
| Single month, July 2026 | 16.09¢/kWh |
| Annual cooling degree days (NOAA, 1991–2020, base 65°F) | 1,265 (48-state avg 1,099) |
| Yearly savings, 18 vs 14 SEER2 | $44 |
We haven't verified utility-specific tariffs for Missouri 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 |
|---|---|---|---|
| Oklahoma | 13.58¢ | 1,920 | $295 |
| Arkansas | 13.61¢ | 1,764 | $272 |
| Kansas | 15.21¢ | 1,458 | $251 |
| Tennessee | 13.87¢ | 1,416 | $222 |
| Missouri | 13.96¢ | 1,265 | $200 |
| Kentucky | 14.27¢ | 1,228 | $198 |
| Illinois | 19.22¢ | 889 | $193 |
| Nebraska | 12.9¢ | 996 | $145 |
| Iowa | 14.2¢ | 809 | $130 |
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 | 8 | 9 | $1 |
| Apr | 11 | 13 | $2 |
| May | 98 | 111 | $15 |
| Jun | 260 | 294 | $41 |
| Jul ★ | 384 | 434 | $61 |
| Aug | 338 | 382 | $53 |
| Sep | 147 | 167 | $23 |
| Oct | 18 | 20 | $3 |
| Nov | 1 | 1 | $0 |
| Dec | 0 | 0 | $0 |
★ peak month.
Thinking about a new system? See AC replacement cost & savings by state and heat pump vs gas furnace in Missouri.
Yearly cooling cost by home size and SEER2
| Home | 13 SEER2 | 14 SEER2 | 16 SEER2 | 18 SEER2 |
|---|---|---|---|---|
| 1,200 sq ft | $129 | $120 | $105 | $93 |
| 1,600 sq ft | $172 | $160 | $140 | $124 |
| 2,000 sq ft | $215 | $200 | $175 | $155 |
| 2,500 sq ft | $269 | $250 | $218 | $194 |
| 3,000 sq ft | $323 | $300 | $262 | $233 |
Average insulation; 13.96¢/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.