UFC 3-400-02 Design: Engineering Weather Data  


The purpose of this document is to provide an overview of and instructions for access to climate data available for use by engineers designing government structures.

The 14th Weather Squadron (14 WS), formerly AFCCC, compiled Engineering Weather Data (EWD) at the request of the Air Force Civil Engineering Center (AFCEC). Sites were identified by AFCEC, US Army Corps of Engineers (USACE), and the Naval Facilities Engineering Command (NAVFAC). Final selection of sites was based upon availability of climate data. Most are located at military installations supporting airfield operations, or at local airports/airfields. Non-DoD requests may be satisfied from a private consulting meteorologist or from NOAA's National Centers for Environmental Information (NCEI, formally the National Climatic Data Center). Each site’s EWD is presented as a PDF.

To comply with Standard 90.1-2013, Energy Standard for Buildings Except Low-Rise Residential Buildings, co-sponsored by the American Society of Heating, Refrigerating, and Air Conditioning Engineers and the Illuminating Engineering Society of North America (ASHRAE/IESNA) and approved by the American National Standards Institute (ANSI), the 14 WS has added a separate comma separated values file containing all cooling degree-day data based on 50°F for all sites. Paragraph in Chapter 2 entitled “Alternate Cooling Degree-Days Calculation” covers the use of this file in more detail. Bin Temperature Data .csv files are suitable for importing into Microsoft® Excel.