MONTHLY PAN EVAPORATION, INCHES Year APRIL MAY JUNE JULY AUG. SEPT. OCT. TOTAL 21-30 1-10 1972 * 1.82 6.08 8.03 6.76 5.62 4.08 0.92 33.31 1973 1.75 5.82 8.45 8.73 7.64 4.33 0.89 37.61 1974 2.03 5.54 7.46 9.46 6.49 4.62 1.29 36.89 1975 0.70 7.02 6.34 9.41 6.58 4.29 2.08 36.42 1976 * 1.82 8.40 11.08 10.96 10.54 6.62 1.61 51.03 1977 2.94 9.42 8.48 9.20 6.65 4.06 0.96 41.71 1978 1.61 8.00 7.21 6.87 8.30 6.02 1.21 39.22 1979 1.30 6.32 8.53 7.82 5.23 5.33 1.18 35.71 1980 2.88 7.62 7.75 8.83 6.55 4.51 1.47 39.61 1981 1.14 6.45 6.61 7.72 5.83 4.97 0.84 33.56 1982 2.77 6.29 7.49 8.52 7.81 4.21 0.85 37.94 1983 * 1.82 6.53 7.05 8.47 7.23 4.52 1.23 36.85 1984 2.37 7.13 6.88 8.88 7.26 5.24 1.03 38.79 1985 1.98 7.79 7.89 9.07 5.95 4.39 0.95 38.02 1986 1.65 7.21 8.34 7.97 6.71 3.88 1.20 36.96 1987 2.88 8.33 10.96 8.62 7.01 5.36 1.74 44.90 1988 1.77 10.38 11.83 11.73 8.96 5.20 1.54 51.41 1989 1.74 6.47 7.80 8.93 7.26 5.90 1.57 39.67 1990 1.96 6.27 7.24 7.65 6.63 5.45 1.71 36.91 1991 2.09 5.24 7.90 7.44 6.31 4.04 1.08 34.10 1992 1.32 8.83 6.89 5.80 6.69 4.80 1.30 35.63 1993 2.01 5.44 6.46 6.94 6.38 4.10 1.58 32.91 1994 1.32 8.67 7.36 7.02 6.58 3.94 1.18 36.07 1995 1.45 6.16 7.24 7.98 5.80 4.66 0.84 34.13 1996 1.75 5.95 6.53 7.53 7.71 4.60 1.47 35.54 1997 1.99 5.91 7.42 5.43 4.97 4.34 1.51 31.57 1998 2.22 7.50 5.57 7.32 5.79 5.13 0.72 34.25 1999 1.95 6.15 6.26 7.92 5.57 4.71 1.01 33.57 2000 2.20 5.81 6.15 6.89 6.17 4.84 1.38 33.44 2001 2.03 5.29 6.93 8.03 6.28 3.83 1.20 33.59 2002 1.11 6.25 7.25 6.69 6.09 4.47 0.71 32.57 2003 2.09 5.93 6.23 6.88 6.84 5.25 1.39 34.61 2004 1.91 5.41 6.30 6.63 5.14 4.91 1.27 31.57 2005 1.20 4.35 6.96 8.82 6.49 4.81 1.20 33.83 2006 1.21 5.98 7.91 9.16 5.72 3.29 1.41 34.68 2007 2.19 6.86 8.81 8.70 6.12 5.38 1.37 39.43 2008 * 1.82 6.83 6.42 8.71 7.83 4.57 1.26 37.44 2009 1.81 8.22 6.94 7.10 6.09 4.78 0.71 35.65 2010 1.81 6.02 5.99 7.66 7.72 4.19 1.35 34.74 2011 * 1.82 5.17 7.21 7.70 6.57 4.83 2.32 35.62 2012 1.48 7.74 8.13 8.41 7.14 6.37 1.34 40.61 2013 * 1.82 6.09 7.31 8.39 7.26 4.89 1.44 37.20 2014 1.86 6.29 6.70 7.93 5.44 4.75 1.03 34.00 2015 * 1.82 5.36 6.78 8.20 6.12 4.25 1.02 33.55 2016 * 1.82 6.27 7.02 7.64 5.46 4.69 1.59 34.49 2017 1.38 5.11 7.01 8.74 5.80 5.03 1.27 34.34 2018 * 1.82 7.06 6.20 6.86 5.67 4.46 0.39 32.46 2019 * 1.82 5.09 6.83 6.40 6.13 3.89 0.98 31.14 2020 1.23 6.09 8.18 7.35 6.82 4.52 1.40 35.59 2021 * 1.82 5.79 8.98 7.85 7.01 4.49 0.83 36.77 2022 * 1.82 6.31** 8.75 8.11 6.38 5.43 1.46 38.26 2023 * 1.82 7.51 7.97 8.24 6.14 5.31 1.43 38.42 ----------------------------------------------------------------------------- 1991-2020 NORM 1.75 6.24 6.96 7.54 6.29 4.61 1.22 34.61 1972-2022 DATA SUMMARY AVG 1.82 6.59 7.49 8.00 6.59 4.73 1.24 36.47 MAX 2.94 10.38 11.83 11.73 10.54 6.62 2.32 51.41 2nd 2.88 9.42 11.08 10.96 8.96 6.37 2.08 51.03 MIN 0.70 4.35 5.57 5.43 4.97 3.29 0.39 31.14 2nd 1.11 5.09 5.99 5.80 5.14 3.83 0.71 31.57 STD 0.45 1.22 1.25 1.15 1.01 0.65 0.35 4.07 * = TOO FEW DAYS FOR THESE APRILS, AVERAGE SUBSTITUTED ** May 1-6 est. Year APRIL MAY JUNE JULY AUG. SEPT. OCT. TOTAL 21-30 1-10
