Monthly Pan Evaporation for Urbana, IL (site 11-8740)
(use the tabs at the bottom to change location)
Year April May June July August September October
1980 3.51 4.94 5.88 M 5.22 3.59 M
1981 4.13 3.92 5.37 4.82 4.38 4.19 3.47
1982 M 5.43 5.26 5.58 4.73 3.30 2.79
1983 M M M M 6.44 M 2.91
1984 M 4.89 7.39 6.30 5.41 3.87 M
1985 M 5.64 5.52 6.05 M M M
1986 5.11 5.72 7.33 7.63 6.08 4.36 2.50
1987 M 7.85 7.95 6.39 5.98 4.79 M
1988 5.01 8.00 9.08 7.93 6.61 4.85 2.80
1989 M 5.02 6.53 6.36 5.60 4.59 M
1990 M M 6.63 6.27 5.20 4.19 M
1991 4.20 5.36 7.23 8.27 6.30 4.99 M
1992 M 5.80 6.88 5.92 5.60 4.05 M
1993 M 5.79 6.14 6.45 5.39 M M
1994 M 6.51 7.18 7.11 5.85 4.48 M
1995 M 4.69 6.42 8.15 6.16 4.52 M
1996 M M 6.20 7.15 6.01 4.29 M
1997 M 5.73 5.33 6.96 5.22 4.62 M
1998 3.93 5.80 7.84 6.15 5.38 5.30 2.94
1999 M 5.83 5.88 6.18 5.60 5.56 M
2000 4.04 5.36 6.02 5.62 5.67 4.56 3.14
2001 M 5.87 5.89 6.40 6.07 3.85 M
2002 M 4.79 6.41 7.55 5.74 4.62 2.84
2003 M M 5.77 6.31 6.16 5.80 2.87
2004 M 5.56 6.51 5.94 5.27 5.07 M
2005 4.51 6.21 7.85 8.04 6.17 5.27 3.00
2006 4.58 4.98 6.40 M 5.15 3.51 3.64
2007 M 6.24 6.83 6.55 6.31 5.34 3.47
2008 M M M 6.51 5.53 3.65 2.99
2009 M M 5.87 5.29 M 2.28 M
2010 4.88 5.12 6.44 6.59 6.73 5.12 4.21
2011 M M M 7.04 7.38 4.53 3.32
2012 4.43 6.14 8.04 8.83 7.50 3.46 2.92
2013 M M 4.94 7.06 5.54 5.12 3.46
2014 1.73b 5.78 6.59 5.38 4.43 4.02 1.94
       
Average 4.34 5.66 6.58 6.59 5.69 4.45 3.03
State Climatologist Office for Illinois
Illinois State Water Survey
Prairie Research Institute
University of Illinois Urbana-Champaign
Blank cells indicate that the data are not available. Pan evaporation is typically only measured during the warmer months of the year. 
b - April 2014 covers only 9 days