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<br /> Table 4 Evaporation at Lake Powell Based on Adjusted Pan Data <br /> from the Class A Pan at Wahweap, A' a <br /> r~zona <br /> Annual <br /> Year Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dee Total <br /> 1962 2.08 2.05 3.04 5.28 5.70 7.99 10.78 11.15 9.04 5.79 4.82 5.38 73.1 <br /> 1963 2.08b 2.20 3.50 4.57 5.82 8.00 11. 19 8.48 7.63 6.32 5.73 5.38b 70.9 <br /> 1964 2.08b 2.12b 3.12 4.35 5.28b 7.54 9.70 10.50 9.72 8.12 6.12 5.38b 74.03 <br /> 1965 2.08b 2.56 3.10 3.79 5.23 6.61 8.28 10.00 9.66 6.37 5.84 5.38b 68.9 <br /> 1966 2.08b 1. 48 3.74 5.26 5.72 8.84 10.00 11. 06 8.64 6.78 6.45 5.38b 75.43 <br /> 1967 2.08b 2.12b 3.26b 4.80 4.69 7.15 8.86 8.65 7.77 6.94 6.86 5.38b 68.56 <br />..... 1968 2.08b 2.12b 3.40 3.96 5.27 8.01 8.60 7.75 9.44 5.94 6.58 5.38b 68.53 <br />N 2.08b 5.90b 5.38b <br /> 1969 2.12 2.98 4.29 5.67 7.16 8.58 9.08 8.23 6.03 67.5 <br /> 1970 2.08b 2.12b 3.85 4.78 5.96 7.89 8.52 8.92 9.46 6.15 5.90b 5.38b 71. 01 <br /> 1971 2.08b 2.12b 3.25b 4.76 4.96 8.01 10.83 9.91 8.12 6.04 5.90b 5.38b 70.64 <br /> 1972 2.08b 2.12b 3.25b 5.35 5.74 7.15 8.99 7.73 8.24 6.38b 5.90b 5.38b 68.31 <br /> 1973 2.08b 2.12b 2.58 4.22 4.70 6.92 8.33 9.37 8.30 6.84 6.03 5.38b 66.87 <br /> 1974 2.08b 2.12b 3.25b 4.66 5.55 7.85 8.24 8.89 8.36 5.63 4.74 5.38b 66.75 <br /> 1975 2.08b 2.12b 3.25b 3.66 3.69 6.77 8.32 7.80 7.59 6.09 5.90b 5.38b 62.56 <br /> Monthly Annual Mean <br /> Mean 2.08 2.12 3.26 4.50 5.28 7.56 9.22 9.18 8.58 6.38 5.90 5.38 69.44 <br /> <br />a = The pan was usually not operated all 12 months of each year. When there was no mea- <br />surement available the mean of the rest of the years for that month was used in cal- <br />culating the adjusted values. Original pan data from U.s. Weather Bureau Climatolo- <br />gical Data for Arizona." <br /> <br />b = Based on estimated values as per note a above. <br />