2009-07-06_REVISION - M1977036 (25)

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EXHIBIT K Climate The subject site area has a high plain, continental climate. With the mountains to the west, variations in temperature are wide. In the high plains area, rainfall is light and humidity is low. The average frost-free period is 172 days. Annual average precipitation is about 14 inches. In the eastern high plains area, the climate is modified considerably from that expected of a typical high plain because of the nearby mountains to the west. The winds characteristic of the plains are reduced somewhat by the shielding effect of the mountains. Climate data for the Site is assumed to be similar to that of a weather station at Greeley UNC, Colorado. The Western Regional Climate Center tracks temperature extremes and precipitation data for this station. The following table includes data that was collected between March 1, 1967 and December 31, 2008. GREELEY UNC, COLORADO (053553) Period of Record Monthly Climate Summary Period of Record: 3/1/1967 to 12/31/2008 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual Average Max. 41.3 [46.9 55.9 64.4 7[8.7 779.4 66.7 51.2 41.9 65.2 Temperature (F) Average Min. 15.3 [19.9 26.8 34.7 44.2 52.8 58.3 HE?F5.5 24.6 16.5 36.0 Temperature (F) Average Total 0.48 [j?[ 1.06 HHFI.84 Fl.51 1.33 1.12 1.02 0.75 0.50 14.14 Precipitation (in.) Average Total 5.9 4.3 7.1 5.0 0.9 0.0 0.0 F 0.0 0.7 2.9 6.8 6.3 39.9 SnowFall (in.) F Average Snow Depth (in.) 2 1 0 0 0 0 0 0 0 0 1 1 0 Percent of possible observations for period of record. Max. Temp.: 100% Min. Temp.: 100% Precipitation: 100% Snowfall: 97.8% Snow Depth: 95.3% Check Station Metadata or Metadata graphics for more detail about data completeness. Source: Western Regional Climate Center, www.wrcc.dri.edu/cgi-bin/cliMAIN.pl?co3553. Greeley 35`h Avenue Mine (M-1977-036) DRMS 112 Reclamation Permit Amendment Application Page KI of Kl