Surface water temperatures are expected to rise due to warming air temperatures
Stream-water temperatures are expected to warm as a result of warming air temperatures, earlier snowmelt, and altered hydrology throughout the year (Knouft and Ficklin 2017). Stream water temperatures have risen over the last century (0.009–0.077˚C per year) and are projected to continue increasing with warmer ambient air temperatures (Kaushal et al, 2010). Models project that summer stream temperatures will increase of 1.4 to 7.2°F by the end of century (modeled with 15 models and multiple emission scenarios) (Lyons et al, 2010).