Ranked from NOAA 1991-2020 Climate Normals
Driest Counties in Arizona
The least rainfall in the country. Dry is easier on a building than wet, but it moves the cost somewhere else: irrigation, foundation movement in shrink-swell soils, and in the driest counties the price and reliability of water itself. 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 | Annual rainfall | FEMA risk rating | Median home |
|---|---|---|---|---|
| 1 | Yuma County | 3.8" | Relatively Moderate | $195,700 |
| 2 | La Paz County | 4.6" | Relatively Moderate | $117,600 |
| 3 | Navajo County | 6.5" | Relatively Moderate | $186,100 |
| 4 | Graham County | 8.0" | Relatively Low | $202,700 |
| 5 | Mohave County | 8.0" | Relatively High | $253,200 |
| 6 | Apache County | 8.2" | Relatively Low | $68,500 |
| 7 | Maricopa County | 8.2" | Very High | $414,700 |
| 8 | Pinal County | 8.6" | Relatively Moderate | $312,100 |
| 9 | Cochise County | 12.2" | Relatively Moderate | $207,400 |
| 10 | Yavapai County | 12.8" | Relatively Moderate | $392,900 |
| 11 | Coconino County | 13.4" | Relatively Moderate | $413,200 |
| 12 | Santa Cruz County | 14.6" | Relatively Moderate | $216,100 |
| 13 | Gila County | 15.9" | Relatively Moderate | $247,000 |
| 14 | Greenlee County | 17.0" | Very Low | $136,300 |
| 15 | Pima County | 19.9" | Relatively High | $286,900 |
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
Driest Counties across all 3,133 US counties · Every county in Arizona