A climatological report for the county loosely spanning from the 1880s to early 1970s, made available through UCSC. Begins with analyses of the varying aspects of climate, and moves to charts of gatherings from the various data sites shown on the map on the cover.

Notables: Chittenden Pass, Locatelli Ranch, Enos Ranch, Pigeon Point Lighthouse, Mount Madonna, Watsonville Waterworks, Environmental Science Services Administration, terrain, temperature, freeze data, heating degree days, precipitation, snowfall, evapotranspiration, evaporation, relative humidity, wind, sunshine, cloudiness, Cooperative Observer Program, Sunset Beach, Sunset State Beach Park