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<br /> <br /> <br /> <br /> <br /> <br />1 <br /> <br /> <br /> <br /> <br />1 <br /> <br />1 <br />1 <br />t <br /> <br /> <br />Exhibit K - Climate <br />Climatic data far the town of Ignacio, located a few miles to the SSW <br />of the pit site, is given here. The period of record for precipitation is <br />69 years; the period of record for temperature is for 61 years. Other <br />climatic data was obtained from Climates of the States, Colorado, by Joseph <br />Barry, U>S> Department of Commerce, Climatography of the United States, No. <br />60-5. <br />The mean annual temperature is about 46.2°F. The mean minimum January <br />temperature is about 8°F.; the mean maximum January temperature stands at <br />about 39°F. In July, the mean minimum temperature is about 49°F and the <br />mean maximum temperature is about 87°F. The seasonal temperature ranges <br />from the 90°'s to a low in the -20°'s. <br />The mean annual precipitation is about 14.5 inches. About 70+% of the <br />precipitation falls between April 1st and September 30th as a result of <br />spring snow and summer storms. Snow during the spring months can amount to <br />a significant amount of moisture in some years. Snow falling on this area <br />melts early, encouraging the growth of cool season grasses. <br />The frost-free period (daily minimum temperature higher than 32°F) <br />averages about 106 days in length; the growing season for native plants is <br />March through September with the optimum growth period in the early spring <br />and summer months. <br /> <br />