# Sierra · NM — IECC/Building America climate zone by U.S. county, 2021 code cycle

For Sierra · NM, county is Sierra; state is NM; iecc 2021 climate zone is 3; building america climate zone is Hot‐Dry; building america zone changed from pre-2021 is Mixed‐Dry→Hot‐Dry, recorded from its source on 2026-08-19.

- **County:** Sierra _(verified: appears in the quote below)_
- **State:** NM _(our reading, not quoted from the source)_
- **IECC 2021 climate zone:** 3 _(verified: appears in the quote below)_
- **Building America climate zone:** Hot‐Dry
- **Building America zone changed from pre-2021:** Mixed‐Dry→Hot‐Dry
- **Changed from pre-2021 IECC:** 4→3 _(verified: appears in the quote below)_

## What the source says

> NM Sierra Mixed‐Dry→ 4→3

## Source

- https://www.osti.gov/servlets/purl/1893981

Last verified: 2026-08-19. Review by: 2028-08-18.
Part of [IECC/Building America climate zone by U.S. county, 2021 code cycle](https://referencesource.org/iecc-climate-zone-by-county/).