A Single Drop

Your Water Colorado Blog

Each year brings warnings of drought and with it, the implementation of water conservation measures. How do climatologists know if a lack of precipitation is a drought indicator or simply part of the earth’s natural cycle?

In a word: Data.

Everything water related, including drought, begins with precipitation. Systematic weather reporting in Colorado began in the 1870s and 1880s, with the first weather reports coming from Pike’s Peak in 1873. In the late 1880s, the Colorado General Assembly passed legislation supporting the “Colorado State Weather Service” and in 1890, the U.S. Department of Agriculture took over climate monitoring and reporting. It was also in 1890 that the Cooperative Observers, a group of now more than 8,700 volunteers, began providing observational meteorological data in real time.

Today, precipitation in Colorado is tracked by a statewide network made up of the National Weather Service (NWS) and the Cooperative Observers. Together, they…

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