Monthly Pan Evaporation for Belleville, IL (site 11-0510)
(use the tabs at the bottom to change location)
Year	May	June	July	August	September
1986	M	M	9.05	8.04	5.83
1987	8.25	9.08	8.37	6.74	5.50
1988	7.68	9.27	9.27	7.57	5.03
1989	6.45	6.78	M	6.05	4.81
1990	6.60	7.98	8.64	6.60	5.81
1991	5.31	7.84	8.89	7.33	5.62
1992	6.41	7.81	7.71	6.57	5.48
1993	6.82	7.29	8.61	6.68	5.23
1994	7.59	7.53	7.86	6.71	6.23
1995	6.47	6.77	8.32	7.22	5.75
1996	8.25	7.13	7.48	7.48	5.05
1997	6.87	7.15	8.15	5.96	5.17
1998	7.01	8.84	7.16	7.01	4.28
1999	6.87	7.24	M	7.36	6.87
2000	6.56	9.86	6.81	6.45	M
2001	7.26	8.50	7.72	7.99	5.17
2002	6.81	8.18	8.56	7.06	5.72
2003	5.90	7.22	8.43	7.36	5.40
2004	6.34	6.91	7.88	6.74	5.60
2005	7.24	9.04	8.34	7.33	6.25
2006	6.96	8.60	7.52	7.39	5.25
2007	6.99	7.83	7.96	8.86	6.32
2008	7.37	M	7.53	6.40	5.39
2009	6.22	7.60	6.42	7.53	4.58
2010	M	8.14	9.68	8.53	5.44
2011	M	M	M	M	M
2012	M	M	M	M	M
2013	M	M	M	M	M
2014	M	M	M	M	M
Average	6.88	7.94	8.03	7.16	5.49
State Climatologist Office for Illinois
Illinois State Water Survey
Prairie Research Institute
University of Illinois Urbana-Champaign
"M" indicates that the data are missing. Pan evaporation is typically only measured during the warmer months of the year.