Engineering Weather Data Manual

BRIEF

This file contains monthly and annual normals and averages, probability statistics, and frequency distribution tables for heating and cooling degree days.

Chapter I - Winter Design Data for Heating and Summer Design and Criteria Data for Air Conditioning for Sites in the U.S.

a) Winter Design Data-Heating: Data presented are the dry-bulb temperatures that are equaled or exceeded 99% and 97.5% of the time, on the average, during the months of December, January, and February. Also included are the data on the prevailing wind direction, and the average wind speed that occurs coincendentally with the 97.5% dry-bulb winter design temperature.

b) Degree-Days Heating: Data presented are the mean annual number of degree days, using a base of 65 Deg. F, for the period 1965-1974, or where available, the 30-year normal period, 1941-1970 inclusive.

c) Summer Design Data-Air Condition: Data presented are the dry-bulb and wet-bulb temperatures that are equaled or exceeded 1%, 2.5%, and 5% of the time, on the average, during the months of June, July, August, and September. The Mean Coincident Wet-Bulb temperatures (MCWB) listed with the 1%, 2.5%, and 5% dry-bulb summer design temperatures are the averages of those wet-bulb temperatures whcih occur coincindentally with the respective dry-bulb summer design temperatures. The mean daily range (difference between daily maximum and daily minimum temperature) is the average of all daily dry-bulb temperature ranges for days on which the 2.5% dry-bulb summer design temperature is reached or exceeded. The prevailing wind direction is the wind direction occuring most frequently with the 2.5% dry-bulb summer design temperture.

d) Summer Criteria Data-Air Conditioning: Data presented are the number of hours, on the average, that the dry-bulb temperatures of 93 and 80 Deg. F and the wet-bulb temperatures of 73 and 67 Deg. F are equaled or exceeded during the months of May through October.

Chapter II - Same as Chapter I, except for sites OUTSIDE the U.S.

Chapter III - Data for use in calculating energy consumption estimates for sites in the U.S. The data, based upon 24-hourly observations per day for at least a five-year period, are the monthly mean frequencies of dry-bulb tempertures, by 5-degree intervals, for three hour groups and for all hours. The MCWB temperature shown is the mean of all the wet-bulb temperatures that were observed coincidentally with the dry-bulb temperatures in that particular 5-degree interval.

Chapter IV - Same as Chapter III, except for sites OUTSIDE U.S.

Chapter V - Cooling degree day data for sites in the U.S. The data presented are the mean annual cooling-degree day totals, using 65 Deg. F, for the period 1965-1974, inclusive, or where available, the 30-year normal period 1941-1970 inclusive.

Chapter VI - same as Chapter V, except for sites OUTSIDE U.S.

This U.S. Department of Defense publication was prepared by the U.S. Air Force, Air Weather Service (AWS), Environmental Technical Applications Center as AF MANUAL 88-29, Facility Design and Planning, Engineering Weather Data.

ATTRIBUTES

Entry_ID: FA00032 (MD Identifier: 4865)
 
Temporal Coverage:
     From: 1941-01-01                 TO: 1974-01-01 
 
Geographic Coverage:
     Southwest Extent: 90S,180W    Northeast Extent:  90N,180E
 
Source:
     GROUND STATIONS>Fixed Weather Stations
 
Storage Media:
     Microfiche
 
Discipline, Subdiscipline:
     EARTH SCIENCE                   > ATMOSPHERE
 
Location Keyword:
     EQUATORIAL
     GLOBAL
     MID-LATITUDE
     POLAR
 
Parameter Group, Parameter:
     ATMOSPHERIC DYNAMICS            > ATMOSPHERIC TEMPERATURE
     ATMOSPHERIC DYNAMICS            > WINDS
 
General Keywords:
     ANNUAL DATA
     AWS
     CLIMATOLOGY
     DAILY DATA
     DEGREE DAYS
     DOD
     HOURLY DATA
     IDN_NODE GSFC/NCDC
     MONTHLY DATA
     STATISTICS
     SURFACE
     USAF
 
Revision Date: 1994-03-01
                                             

DATACENTER

Archive: 
   NOAA/NESDIS/NCDC>National Climatic Data Center, NOAA
 
   Contact: ROSS, THOMAS 
            NOAA/NESDIS/NCDC
            Federal Building
            37 Battery Park Avenue
            Asheville, NC 28801-2733
            USA
 
            Electronic Mail: INTERNET> TROSS@NCDC.NOAA.GOV
 
            Phone: (704) 271-4994
                                             

PERSONNEL

Tech Contact: ROSS, THOMAS 
              NOAA/NESDIS/NCDC
              Federal Building
              37 Battery Park Avenue
              Asheville, NC 28801-2733
              USA
 
              Electronic Mail: INTERNET> TROSS@NCDC.NOAA.GOV
 
              Phone: (704) 271-4994
 
Entry Author: STEURER, PETER 
              NOAA/NESDIS/NCDC
              Federal Building
              37 Battery Park Avenue
              Asheville, NC 28801-2733
              USA
 
              Phone: (704) 271-4445
 
 
Information in this entry provided by NCDC
                                             

REFERENCE


NOAA Product Information Catalog, 1988, U.S. Dept. of Commerce, Washington DC,
171 pp.

Selected Guide to Climatic Data Sources, 1988, U.S. Dept. of Commerce,
Washington DC.

                                             

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