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B-36 <br /> Keenesburg Project RETTEW Project No. 114782000 <br /> Colorado Sand Company LLC April 2019 <br /> 6.0 CLIMATE <br /> The climate over the plains of eastern Colorado generally has abundant sunshine, moderate to high wind, <br /> low relative humidity, a large daily range in temperature, and little precipitation. About 60 to 80 percent <br /> of the annual precipitation falls during April to September, primarily from thunderstorms(USGS, 1995). <br /> The region surrounding the project area averages an annual high temperature of 68.8°F and an annual <br /> low temperature of 36.7°F. Summer temperatures during July and August average 94°F and 91'F, <br /> respectively. Winter temperatures during January and February average 46°F and 50°F, respectively.The <br /> average annual temperature is 52.75*F. Average annual precipitation is 14.67 inches. Average annual <br /> snowfall is 41 inches. May is the rainiest month, averaging 2.4 inches of precipitation. March receives the <br /> most snowfall on average,with 8 inches,followed by November with 7 inches. <br /> 10 <br /> Keenesburg Project—Limited Impact 110 Application_May 24,2019 <br />