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• III IIIIIIIIIIIIIIII • Parkdale Protect 999 Reclamation Permit fiY Exhibit K -Climate Climate in the Parkdale vicinity is mild and semi-arid. Climatological data recorded at Canon City is considered representative of the Pazkdale site. Canon City is located about six miles southeast of Parkdale. Canon City's elevation is about 5,300 feet AMSL and Parkdale's elevation is 5,800 AMSL. Summers are warm and winters cold. Summer precipitation falls as showers, and some thundershowers occur. In winter the snow cover in unshaded azeas and on south-facing slopes often melts within a few days of snowfall. The table below lists data on temperature and precipitation as recorded at Canon City for the period between 1951 and 1980. In winter, the average temperature is 38 degrees at Canon City and the average daily minimum temperature is 24 degrees. In summer, the average temperature is 73 degrees and the average daily maximum temperature is about 84 degrees. The total annual precipitation is about 13 inches at Canon City for the period of record. Of this, 65 percent usually falls in April through September. The usual growing season extending between April 28th and October 12th falls within this period. The heaviest 1- day rainfall during the period of record was 2.74 inches on May 18, 1955. Thunderstorms occur on about 60 days each year. Average seasonal snowfall is about 37 inches and the greatest snow depth at any one time during the period of record was 25 inches. On the average, at least 1 inch of snow is on the ground for 2 days before melting. The number of such days varies greatly from year to year. Average relative humidity in midafternoon is about 40 percent. Humidity is higher at night, and the average at dawn is about 60 percent. The sun shines about 80 percent of the time possible in summer and 75 percent in winter. The prevailing wing is from the north-northeast. Average windspeed is highest, about 12 miles per hour, in spring.