The South Dakota State Climate Office Records document over a century of weather and climate data collection across South Dakota and parts of Iowa, Minnesota, and Wyoming. The bulk of the collection consists of daily weather observation sheets submitted by volunteer reporting stations, recording data such as precipitation, air and soil temperature, wind, and solar radiation. The detail and scope of observations vary based on the equipment available at each site. Materials are organized geographically by reporting location, including towns, research farms, and natural landmarks.
In addition to climatological data, the collection includes administrative and research materials such as master’s theses, grant proposals, legal case documentation involving weather data, radar output, storm and cloud photography, and drought and tree ring analysis. Specialized forms, including B-91 climatological reports, are also present, along with materials relating to significant weather events such as flooding and droughts.
This collection offers insight into long-term regional climate trends. It is a valuable resource for environmental research, agricultural planning, legal reference, public safety, and historical climatology.
South Dakota State Climate Office