The Navajo Nation covers over 70,000 km2 in the Four Corners area of Utah, Arizona and New Mexico. Climate data from the Navajo Nation have been both sparse and sporadic during the past 100 years, and have been limited to daily data from a handful of National Weather Service Cooperative Observer sites. Climate science researchers have identified the area in and around the Navajo Nation as among the most climate-data poor in the region, and the need to remedy this situation has been identified by both the Desert LCC and the Southern Rockies LCC. This USGS Arizona Water Science Center digitized paper climate data records recorded between 1988 and 1995, including portions of 25 volumes of fan-fold line-printer computer printouts with 10 columns of variables per page. The legacy weather data was entered into spreadsheets and delivered to the Arizona State Climate Office, Navajo Nation, and the Desert and Southern Rockies LCCs.
