scope:

FOREWORD

This standard provides a comprehensive source of climate data for those involved in building design. It has been established to provide a variety of climatic information used primarily for the design, planning, and sizing of buildings' energy systems and equipment. This standard is referenced in other standards such as Standards 90.1, 90.2, 90.4, 100, 127, and 189.1.

The data presented in this standard are compiled from the 2021 ASHRAE Handbook-Fundamentals, Chapter 14, "Climatic Design Information," and other data developed specifically for this standard from ASHRAE RP-1847, "Updating Climatic Design Information for the 2021 ASHRAE Handbook, Standard 169, and the Handbook of Smoke Control Engineering"

The data and tables have been completely revised and updated from Standard 169-2020. The standard includes data for 9237 locations throughout the world, an increase of 1119.

Where changes are shown in the text, new text is shown by underline and deleted text shown by Due to the large increase in the number of locations covered in this standard and the resulting changes, some tables are replaced in their entirety rather than using strikeout and underline, indicated by italics.