Abstract:
Climatological Data National Summary is a historical publication archived at the National Climatic Data Center (NCDC). This publication issued monthly and annually, contains selected climatological data for the United States and its protectorates. It began with the January 1950 issue, but prior to that, much of the data appeared in the Monthly Weather Review, the U.S. Meteorological Yearbook (last
... published for the period 1943-49), and the Report of the Chief of the Weather Bureau (last published for 1934). The monthly and annual issues present narrative summaries of general weather conditions, detailed weather measurements that include but are not limited to: max/min temperature, dew point, relative humidity, winds, precipitation, river stage height, degree days, rawinsonde data, pibal data, solar radiation data, damage estimates, climate maps and special reports on tropical cyclones. 
