Climatic Information
ASHRAE Technical Committee 4.2


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Upcoming TC Meetings

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Meetings to be held during the ASHRAE Virtual Conference.

All times listed below are in Eastern Daylight Savings Time (EDT).

Wednesday, 3 Jun 2020
10:00 AM - 10:30 AM - Program
10:30 AM - 12:00 PM - 1847-RP PMS, Updating climatic design information for the 2021 ASHRAE Handbook, Standard 169, and the Handbook of Smoke Control Engineering
12:00 PM - 1:30 PM - Handbook
Tuesday, 9 Jun 2020
10:00 AM - 12:00 PM - SSPC 169, Climatic Data for Building Design Standards
12:00 PM - 2:00 PM - Research
Tuesday, 16 Jun 2020
 10:00 AM - 12:30 PM - Main Committee


Monday, 22 Jun 2020

8:00 AM - 9:00 AM - Seminar 47: Climate Change and Urban Heat Island: Recent Trends in Weather Data for Design and Simulation. Chaired by Michael Roth, with presentations by Parag Rastoi, Dru Crawley and Yu (Joe) Huang.
For locations and remote participation information, please press the 'See More' button below. Remote participation will be available at all meetings.


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Committee Chair

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Joshua New

Committee Scope

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TC 4.2 is concerned with identification, analysis and tabulation of climatic data for use in analysis and design of heating, refrigeration, ventilation and air-conditioning systems.


Upcoming Society Conferences

2020 Winter Conference
Feb 1-5, 2020
Orlando, FL


Conference Badges

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Additional Information

ASHRAE Research Project 1699-RP, Update Climatic Design Data in Chapter 14 of the 2017 Handbook of Fundamentals, is now complete. Please check for the data in Chapter 14 of the Handbook - Fundamentals, and in the Weather Data Viewer, version 6. Please refer to the ASHRAE Climate Data Center for all these products. The map of all 8,118 sites for which climatic design information is available is available through the following link: