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Delta Sand and Gravel. • <br />PIT #1 Amendment <br />M.L. R.B.# M-77-020 <br />July 13, 1997 <br />Exhibit K -Climate <br />This information was downloaded from the Climatology <br />Database at Colorado State University. The average daily <br />temperature is 50.5 degrees and the average precipitation amount <br />is 7.49 inches per year. This is the closest data collection <br />station to the operation. <br />SUMMARY OF MONTHLY CLIMATIC DATA FOR DELTA, COLORADO <br />FOR YEARS 1960-1991 SUBSTATION N0. 52192 DIVISION 2 <br />LATITUDE - 38° 45' LONGITUDE - 108° 04' ELEVATION - 4930 FEET <br />MONTHLY MEAN AVERAGE TEMP IFl MONTH LY PRECIPITATION IINI <br /> AVE. MAX. YEAR MIN. YEAR AVE. MAX. YEAR MIN. YEAR <br />JAN 25.6 34.9 1981 14.8 1991 JAN 0.36 0.96 1974 0.00 1990 <br />FEB 33.5 40.2 1986 19.6 1974 FEB 0.35 1.07 1968 0.00 1991 <br />MAR 41.8 47.4 1986 35.6 1964 MAR 0.56 1.67 1983 0.00 1977 <br />APR 50.5 56.3 1981 44.1 1970 APR 0.47 1.43 1985 0.02 1984 <br />MAY 59.4 63.4 1963 56.2 1983 MAY 0.54 1.18 1980 0.00 1974 <br />JUN 68.4 73.2 1977 63.1 1969 JUN 0.43 2.29 1969 0.00 1971 <br />JUL 73.7 76.5 1981 70.8 1986 JUL 0.68 1.98 1977 0.10 1972 <br />AUG 71.2 75.3 1983 64.6 1989 AUG 0.87 3.11 1964 0.06 1978 <br />SEP 62.8 67.1 1981 54.7 1989 SEP 1.00 2.90 1961 0.04 1979 <br />OCT 51.8 56.8 1963 45.8 1969 OCT 1.04 2.39 1981 0.00 1967 <br />NOV 39.1 43.3 1965 33.0 1979 NOV 0.66 2.03 1986 0.00 1976 <br />DEC 28_6 38.4 1980 19.6 1990 DEC 0.48 2.03 1971 0.00 1989 <br />ANN 50.5 53.7 1981 48.2 1968 ANN 7.49 10.70 1969 4.65 1966 <br />11 <br />