Ranked from NOAA 1991-2020 Climate Normals
Coldest Winters in Arizona
Average daily low in the coldest month, coldest counties first, with the heating degree days beside it. 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 | Winter low | Heating degree days | Monthly to own |
|---|---|---|---|---|
| 1 | Coconino County | 14.1°F | 6,799 | $3,038 |
| 2 | Apache County | 18.9°F | 5,275 | $718 |
| 3 | Navajo County | 21.7°F | 4,330 | $1,515 |
| 4 | Yavapai County | 25.5°F | 4,056 | $2,885 |
| 5 | Cochise County | 29.1°F | 2,827 | $1,667 |
| 6 | Mohave County | 30.2°F | 3,012 | $1,952 |
| 7 | Graham County | 33.6°F | 2,175 | $1,618 |
| 8 | Pima County | 33.6°F | 3,992 | $2,252 |
| 9 | Santa Cruz County | 33.9°F | 2,039 | $1,728 |
| 10 | Greenlee County | 35.0°F | 2,026 | $1,144 |
| 11 | Yuma County | 36.4°F | 1,190 | $1,589 |
| 12 | La Paz County | 38.8°F | 1,256 | $1,053 |
| 13 | Gila County | 39.6°F | 1,627 | $1,921 |
| 14 | Pinal County | 41.3°F | 1,157 | $2,360 |
| 15 | Maricopa County | 42.0°F | 1,140 | $3,044 |
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
Coldest Winters across all 3,133 US counties · Every county in Arizona