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E'HIBIT K <br /> S <br /> CLIMATE <br /> • <br /> Specific Climatic Factors (cont.) <br /> PRECIPITATION (cont.) <br /> Divide effectively preclude the movement of moisture-lad= air <br /> from the Gulf of Mexico to the western slope of Colorado. Addi- <br /> tionally, relatively higher amounts of precipitation in -stern <br /> Colorado are not possible due to the orographic removal •' mois- <br /> ture as Pacific air masses are lifted over the mountain r=nges <br /> west of Colorado. Monthly precipitation data for Paradox which <br /> can be considered representative of the mine site, are gi en in <br /> Table K2-3. <br /> Slightly more than half of the annual average precipitation <br /> 411111 is recorded during the May-October growing season, with t e highest <br /> average monthly precipitation expected in August. Precip tation <br /> amounts during the growing season will be temporarily and spatially <br /> variable due to the predominance of thunderstorms during he spring, <br /> summer and early fall. The recurrence interval of maximu , pre- <br /> cipitation amounts, usually resulting from thunderstorms, is <br /> listed in Table K2-4. <br /> DROUGHT <br /> The frequency of droughts is an additional factor to be con- <br /> sidered when selecting plant species for revegetation. Fo the <br /> purposes of calculating the recurrence interval of prolo • -d <br /> drought conditions, drought has been defined as a period en <br /> 1111. 75 percent or less of normal annual precipitation falls. <br /> -3- <br />