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EXHIBIT K CLIMATE INFORMATION <br /> The climate at the Hayden Gravel Pit is consistent with climate data of Hayden, CO just two <br /> miles from the site. The pit elevation is approximately 6,445 feet above sea level. The climate of <br /> Hayden, CO and surrounding areas is defined as a Continental Subarctic Climate by the <br /> Koppen Climate Classification system. This climate type is characteristically dominated by long, <br /> cold winters with occasional precipitation of mostly snow. Mean temperatures throughout the <br /> year are sub-freezing for six to eight months. Summers are short and dry with mild temperatures <br /> in the area. The typical growing season is approximately 80 days. Prevailing winds are typically <br /> from the west. Table K-1 summarized the Hayden, CO climate data based on records from <br /> 1948-2005. <br /> Table K-1 Climate Data of Hayden, Colorado, approximately 2 miles west of the Hayden <br /> Gravel Pit <br /> -Average Temper ture F Average Preci itation in <br /> Maximum Minimum Total precip. Total snow <br /> January 30.3 5.9 1.55 25.9 <br /> February 34.9 9.3 1.22 18.6 <br /> March 43.9 18.3 1.26 14.2 <br /> April 57.3 27.9 1.62 7.9 <br /> May 68.4 35.6 1.45 0.9 <br /> June 78.4 42.1 1.23 0.1 <br /> July 85.2 48.0 1.29 0.0 <br /> August 82.9 46.9 1.38 0.0 <br /> September 74.5 38.6 1.44 0.6 <br /> October 62.4 28.6 1.52 4.5 <br /> November 44.7 18.6 1.45 15.8 <br /> December 32.5 8.7 1.58 24.7 <br /> Yearly av 58.0 27.4 17.0 113.3 <br /> Hayden Gravel Pit <br /> December 2022 K"1 Lewicki&Associates <br />