Located on the campus of Colorado State University near the Lory Student Center, the Historic Fort Collins Weather Station began collecting data in the 1870s. It was located near the site of the “Old Main” building, which was lost to arson in 1970.
Data is available in both digital and hard copy forms dating back to 1889, and data is updated every 10 minutes. This data includes information about humidity, wind speeds and direction, temperature, pressure, soil temperatures and solar radiation.
Historical Marker Inscription
This is one of the longest operating weather stations in the western U.S. monitoring temperature, humidity, precipitation (rain, hail and snow), evaporation, winds, solar radiation, clouds, visibility, barometric pressure and soil temperatures. Weather observations for research, teaching and public information have been conducted on campus since the early 1870s. Continuous support for this historic weather station has been provided by the Colorado Agricultural Experiment Station since 1889. Early data collected here aided agricultural and irrigation research and development. Beginning in the late 1930s, this station provided weather support for aviation and transportation safety. Uses continue to expand today. Data are publicly available for tracking climate trends, variations and extremes and their impacts here in northern Colorado.
Colorado State University, Fort Collins, CO 80523
40° 34.582′ N, 105° 5.158′ W