U.S. DEPARTMENT OF COMMERCE 
 
 JOHN T. CONNOR, Secretary 
 
 C&*. it : a ui 
 
 ENVIRONMENTAL SCIENCE SERVICES ADMINISTRATION 
 
 ROBERT M. WHITE, Administrator 
 
 APS 
 
 OF THE 
 UNITED STATES 
 
 ENVIRONMENTAL DATA SERVICE 
 Prepared by Office of Data Information 
 
 /?■/. ^ 
 
 Title 
 
 Normal Daily Maximum Temperature (°F), January 
 
 Normal Daily Minimum Temperature ( °F) , January 
 
 Normal Daily Maximum Temperature (°F) , July . . 
 
 Normal Daily Minimum Temperature ( °F) , July * 
 
 Mean Annual Number of Days Maximum Temperatur'e"96 *F 'and 'Above 
 
 Except 70°F and Above in Alaska ' 
 
 Mean Annual Number of Days Minimum Temperature 32 °*F "and *Be* low' ' 
 
 Mean Annual Total Heating Degree Days (Base 65°F) """ 
 
 Mean Annual Total Cooling Degree Days (Base 65°F) ' 
 
 Mean Date of Last 32°F Temperature in Spring 
 
 Mean Date of First 32°F Temperature in Autumn] 
 
 Mean Length of Freeze-Free Period (Days)... 
 
 Normal Annual Total Precipitation (Inches) 
 
 Normal Monthly Total Precipitation (Inches) 'western 'united 'states-'-' 
 
 For Selected Stations 
 
 Normal Monthly Total Precipitation* (inches) Eastern 'united 'states--' 
 
 For Selected Stations 
 
 Mean Annual Number of Days with'6.'6l 'inch'or more 'of 'precipitation 
 
 Mean Annual Number of Days with Thunderstorms 
 
 Mean Annual Total Snowfall (Inches) 
 
 Mean Relative Humidity (%) , January .. .....'. .' °* 
 
 Mean Relative Humidity (%) , July ... 
 
 Mean Annual Relative Humidity (%).'. 
 
 Mean Monthly Percentage of Possible ' Sunshine" January 
 
 Mean Monthly Percentage of Possible Sunshine, July 
 
 Mean Annual Percentage of Possible Sunshine 
 
 Mean Annual Total Hours of Sunshine . 
 
 Mean Daily Solar Radiation (Langleys)' ] 'January 
 
 Mean Daily Solar Radiation (Langleys) , July. ...'." 
 
 Surface Wind Roses, January .... 
 
 Surface Wind Roses , July " 
 
 Surface Wind Roses, Annual ....'.' ' 
 
 For S«l e by Superintendent of Documents. U. S. Government Printing Office, Washington D C 
 
 Price 25 Cents ' "' 
 
 Page 
 
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NORMAL MONTHLY TOTAL PRECIPITATION (Inches) WESTERN UNITED STATES 
 
 For Selected Stations 
 
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NORMAL MONTHLY TOTAL PRECIPITATION (Inches) EASTERN UNITED STATES 
 
 For Selected Stations 
 
 REA PROJECTION - STANDARD PARALLELS 29'/) AND 45 
 
 PUERTO RICO AND VIRGIN ISLA NDS 
 
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The generalized maps presented in this publication have been selected from 
 the Climatic Maps listed below or in preparation. The charts shown in this 
 list are issued on separate sheets, 16 x 22 inches. Each sheet contains one 
 or more maps and in some cases graphs and tabulations as indicated. They 
 can be purchased from the Superintendent of Documents, U.S. Government 
 Printing Office, Washington, D. C. 20402. Checks or money orders should be 
 made payable to Superintendent of Documents. Please order by Catalog number 
 and title. 
 
 "Normal Daily Maximum, Minimum, Average, and Range of Temperatures (°F), 
 January" „.. .December. One sheet for each of the 12 months. These 4 elements 
 are presented by maps on the front side and by graphs for selected stations 
 on the back side of each sheet-- 12 sheets, each containing 4 maps and 1 chart, 
 Price $1.25 per set of 12 sheets. Catalog No. C52. ll:T24/pt. 1-12. 
 
 "Mean Annual Number of Days Maximum Temperature 90°F and Above," including 
 graphs and tabulation of mean monthly number of days 90°F and above for 
 selected stations--l map, 1 chart, and 1 tabulation. Price 10 cents. Catalog 
 No. C30.22/4:T24/6. 
 
 "Mean Annual Number of Days Minimum Temperature 32°F and Below," including 
 graphs and tabulation of mean monthly number of days 32°F and below for 
 selected stations--l map, 1 chart, and 1 tabulation. Price 10 cents. 
 Catalog No. C30. 22/4:T24/9. 
 
 "Mean Dates of Last 32°F Temperature in Spring and First 32°F Temperature 
 in Autumn"--2 maps. Price 10 cents. Catalog No. C52. ll:T24/3. 
 
 "Mean Length of Freeze-Free Period (Days)" with graphs showing "Mean Length 
 of Period Between Last in Spring and First in Autumn of 32°F, 28°F, 24°F, 
 20°F, and 16°F, Respectively for Selected Stations," and also a tabulation 
 of "Mean Date of Last 32°F Temperature in Spring, First 32°F in Autumn, and 
 Mean Length of Freeze-Free Period (Days)" for selected stations--l map, 
 1 chart, and 1 tabulation. Price 10 cents. Catalog No. C30. 22/4:F87. 
 
 "Standard Deviation of Monthly Average Temperature (°F), January- August" — 
 8 maps. Price 10 cents. Catalog No. C52. ll:T24/4. 
 
 "Standard Deviation of Monthly Average Temperature (°F), September-December"-- 
 4 maps and discussion of methods and application. Price 10 cents. Catalog 
 No. C52.11:T24/5. 
 
 "Normal Monthly Total Precipitation (Inches), January- April" — 4 maps. 
 "Normal Monthly Total Precipitation (Inches), May-August" — 4 maps. 
 "Normal Monthly Total Precipitation (Inches), September-December" — 4 maps. 
 Price 30 cents per set of 3 sheets. Catalog No. C52. ll:P91/pt. 1-3. 
 
 "Normal Annual Total Precipitation (Inches)" with graphs of "Normal Total 
 Precipitation (Inches) by Months for Selected Stations" on back--l map and 
 1 chart. Price 10 cents. Catalog No. C30. 22/4:P91/7. 
 
 31 
 
MiNFRM INDUSTRIES LIBRARY 
 
 THE PENNA. STATE UNIVERSITY Abu 1 7 1963 
 "Mean Total Precipitation (Inches), Monthly, January- August (by State Climatic 
 Division)"--8 maps. Price 10 cents. Catalog No. C30. 22/4:P91/4. 
 
 "Mean Total Precipitation (Inches), Monthly, September-December (by State 
 Climatic Divisions)" with "Division Names" on back--4 maps and 1 chart. Price 
 10 cents. Catalog No. C30. 22/4:P91/5. 
 
 "Mean Annual Total Precipitation (Inches) by State Climatic Divisions" with 
 graphs of "Mean Monthly Total Precipitation for Selected State Climatic 
 Divisions" on back--l map and 1 chart'. Price 10 cents. Catalog No. C30.22/4: 
 P91/2. 
 
 "Mean Annual Precipitation in Millions of Gallons of Water Per Square Mile by 
 State Climatic Divisions," with "Mean Annual Precipitation in Millions of 
 Gallons of Water Per Capita by State Climatic Divisions" on back — 2 charts. 
 Price 10 cents. Catalog No. C30. 22/4:P91. 
 
 "Mean Annual Total Snowfall (Inches)" with graphs of "Mean Monthly Total 
 Snowfall (Inches) for Selected Stations" on back — 1 map and 1 chart. Price 
 10 cents. Catalog No. C30. 22/4:Sn6. 
 
 "Mean Number of Days with 0.01 Inch or More of Precipitation, Monthly and 
 Annual," including graphs and tabulation of mean values for selected stations — 
 13 maps, 1 chart, and 1 tabulation. Price 10 cents. Catalog No. C30.22/4: 
 P91/6. 
 
 "Maximum Persisting 12-Hour 1000-mb Dew Points (*F), Monthly and of Record" — 
 13 maps and text. Price 10 cents. Catalog No. C30. 22/4 :D51. 
 
 "Mean Relative Humidity %, Monthly and Annual" including tabulations of 
 frequency groupings and mean values for selected stations — 13 maps, 1 chart, 
 and 2 tabulations. Price 10 cents. Catalog No. C30. 22/4:H88. 
 
 "Pan and Lake Evaporation;" maps of mean annual pan evaporation, pan coefficient, 
 lake evaporation, May-October evaporation in percent of annual, and standard 
 deviation--5 maps and text. Price 10 cents. Catalog No. C30. 22/4:EvL».. 
 
 "Mean Percentage of Possible Sunshine, Monthly and Annual," including graphs 
 and tabulation of mean values for selected stations--13 maps, 1 chart, and 
 1 tabulation. Price 10 cents. Catalog No. C30. 22/4:Su7, 
 
 "Mean Total Hours of Sunshine, Monthly and Annual" including graphs and tabu- 
 lation of mean values for selected stations--13 maps, 1 chart, and 1 tabulation. 
 Price 10 cents. Catalog No. C30. 22/4:Su7/2. 
 
 "Mean Daily Solar Radiation, Monthly and Annual" — 13 maps, 1 tabulation. Price 
 10 cents. Catalog No. C30. 22/4:So4. 
 
 "Mean Sky Cover, Sunrise to Sunset, Monthly and Annual" including graphs 
 and tabulation of mean values for selected stations-- 13 maps, 1 chart, and 
 1 tabulation. Price 10 cents. Catalog No. C30. 22/4 :Sk9. 
 
 "Prevailing Direction, Mean Speed (m.p.h.). and Fastest Mile of Wind, Monthly 
 and Annual," with tabulation of "Fastest Mile and Direction of Wind"--13 maps 
 and 1 tabulation. Price 10 cents. Catalog No. C30. 22/4 :W72. 
 
 PENN STATE UNIVERSITY LIBRARIE 
 
 32