Ranked from NOAA 1991-2020 Climate Normals
Highest Cooling Demand in Arizona
Cooling degree days are the mirror of heating degree days: how far and how long the temperature sits above 65°F. In the counties at the top of this list, cooling is the largest single line on the summer electricity bill. Figures are NOAA 1991-2020 Climate Normals from the weather station nearest each county seat, so they describe a thirty-year average rather than any single year.
Arizona ranked
| # | County | Cooling degree days | Summer high | Monthly to own |
|---|---|---|---|---|
| 1 | La Paz County | 4,453 | 108.7°F | $1,053 |
| 2 | Maricopa County | 4,202 | 106.5°F | $3,044 |
| 3 | Yuma County | 4,176 | 109.2°F | $1,589 |
| 4 | Pinal County | 3,877 | 104.9°F | $2,360 |
| 5 | Gila County | 3,559 | 103.7°F | $1,921 |
| 6 | Greenlee County | 2,895 | 100.4°F | $1,144 |
| 7 | Graham County | 2,715 | 100.9°F | $1,618 |
| 8 | Mohave County | 2,174 | 98.7°F | $1,952 |
| 9 | Santa Cruz County | 1,977 | 96.9°F | $1,728 |
| 10 | Cochise County | 1,581 | 94.8°F | $1,667 |
| 11 | Navajo County | 1,328 | 94.6°F | $1,515 |
| 12 | Yavapai County | 1,068 | 90.3°F | $2,885 |
| 13 | Apache County | 641 | 90.4°F | $718 |
| 14 | Pima County | 616 | 80.3°F | $2,252 |
| 15 | Coconino County | 162 | 84.9°F | $3,038 |
Every figure is modelled on the county's own median home with 20% down at 7.03%. Property tax and electricity are county and state specific; homeowners insurance uses the NAIC average premium for that state, which ranges from 0.16% of home value in Hawaii to 1.16% in Oklahoma. Maintenance and water are national estimates. Full methodology.
Nationwide
Highest Cooling Demand across all 3,133 US counties · Every county in Arizona