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ASHRAE Standard 169-2021 -- Climatic Data for Building Design Standards (ANSI Approved), 2021
- ONLINE SUPPORTING FILES
- ANSI/ASHRAE Standard 169-2021 [Go to Page]
- CONTENTS
- FOREWORD
- 1. PURPOSE
- 2. SCOPE [Go to Page]
- 2.1 This standard covers climatic data used in ASHRAE standards, including dry-bulb, dew- point, and wet-bulb temperatures, enthalpy, humidity ratio, wind conditions, solar irradiation, latitude, longitude, and elevation for locations worldwide.
- 2.2 This standard also includes statistical data, such as mean temperatures, average temperatures, mean/median annual extremes, daily ranges, heating and cooling degree-days and degree hours, hours and seasonal percentages within ranges of temperatur...
- 3. DEFINITIONS, ABBREVIATIONS, AND ACRONYMS [Go to Page]
- 3.1 Definitions
- 3.2 Abbreviations and Acronyms
- 4. CLIMATIC DESIGN DATA AND CLIMATE ZONES
- 5. CLIMATE ZONE MAPS
- NORMATIVE APPENDIX A: CLIMATIC DESIGN DATA AND CLIMATE ZONES [Go to Page]
- A1. Climatic Design Conditions [Go to Page]
- A1.1 Annual Design Conditions. Annual climatic design conditions are contained in the first three sections following the top part of the table. They contain information as shown in the following subsections.
- A2. Monthly Climatic Design Conditions [Go to Page]
- A2.1 Temperatures, Degree-Days, Degree-Hours, Wind, and Precipitation
- A2.2 Monthly Design Dry-Bulb, Wet-Bulb, and Mean Coincident Temperatures. These values are derived from the same analysis that results in the annual design conditions. The monthly summaries are useful when seasonal variations in solar geometry and in...
- A2.3 Mean Daily Temperature Range. These values are useful in calculating daily dry- and wet-bulb temperature profiles. Three kinds of profiles are defined:
- A2.4 Clear-Sky Solar Irradiance. Clear-sky irradiance parameters are useful in calculating solar-related air-conditioning loads for any time of any day of the year. Parameters are provided for the 21st day of each month. The 21st of the month is usua...
- A2.5 All-Sky Solar Radiation. All-sky solar radiation parameters are useful for evaluating the potential of solar technologies (e.g., solar heating, photovoltaics), which are valuable in the design of net zero energy buildings. Parameters listed in t...
- A2.6 Historical Trends. Trends for annual average dry-bulb temperature, 99% dry-bulb and dew-point temperatures, 1% dry-bulb, dew-point and wet-bulb temperatures, and heating and cooling degree-days (bases 50°F and 65°F [10°C and 18.3°C]) are pro...
- A2.7 Climate Filenames and Order. Tables A-3, A-5, and A-6 list the 9237 stations alphabetically for United States, Canada, and other locations, respectively. Climatic design conditions for each location in both I-P and SI units are located online at...
- A3. Climate Zone Definitions
- A4. Climate Zones
- INFORMATIVE APPENDIX B: CLIMATE ZONE MAPS
- INFORMATIVE APPENDIX C: ADDENDA DESCRIPTION [Go to Page]
