Indiana Dunes National Lakeshore
elevation 680 ft.

30 Year Normals (1981-2010)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
Maximum (° F) 31.6 35.4 45.4 57.3 68.1 77.2 81.5 79.8 73.8 61.6 48.8 35.6 58.1
Minimum (° F) 17.6 21.3 29.7 40.0 49.0 59.0 64.3 63.1 55.6 44.0 34.5 22.3 41.8
Average (° F) 24.6 28.3 37.6 48.7 58.5 68.1 72.9 71.4 64.7 52.8 41.7 29.0 50.0
Precipitation (in.) 2.00 1.82 2.23 3.53 3.93 4.34 4.10 4.17 3.53 3.64 3.44 2.41 39.14
Snowfall (in.) 15.3 9.3 5.1 0.7 0.0 0.0 0.0 0.0 0.0 0.0 0.9 9.0 40.3
Monthly Precipitation
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Ann
2014 3.46 1.90  2.19 2.49  5.85 7.00 3.59 7.01 2.83 4.28      
2013 3.41 2.51 1.70 5.82 3.94 6.37 1.78 1.69 2.47 3.87 2.67 1.56 37.79
2012 2.55 1.72 1.88 1.30 2.32 2.51 6.14 3.31 2.08 3.71 0.67 2.34 30.53
2011  1.81 2.92 1.84 5.36  7.93 3.10 5.00 2.87 3.67  5.28 2.96  2.34  45.08
2010 1.08 2.05 1.09 3.73 4.86 8.02  5.32 1.19 2.75 1.61 2.79 1.67  36.16
2009 1.50 4.02 4.76 5.33 3.64 3.52 3.25 4.86 0.59 8.42 1.43 2.56 43.88
2008 5.38 3.53 1.73 3.90 3.37 3.09 4.35 3.57 16.44 3.44 2.18 4.85 55.83
2007 4.22 1.75 2.03 5.36 3.32 2.13 7.26 9.36 1.26 3.28 1.86 3.06 44.89 
2006 3.35 1.66 3.39 3.48 3.84 2.42 7.44 7.68 5.58 4.52 3.10 3.65 50.11
2005 4.95 2.29 1.31 1.08 1.11 1.56 2.93 2.87 2.39 1.01 2.28 1.84  25.62 
2004 1.16 0.56 3.85 1.18 6.09 3.38 5.59 6.30 0.57 3.87 4.55 2.89 39.99
2003 1.18 0.48 1.36 3.29 M M 7.65 1.40 2.99 2.65 4.40 1.51 N/A
2002 1.40 1.44 2.21 4.00 6.15 2.31 0.97 3.58 2.28 1.45 1.74 1.95 29.48
2001 1.50 3.10 0.89 2.15 3.36 2.95 2.98 4.40 2.11 8.95 2.69 1.26 36.34
2000 2.00 1.33 0.98 3.37 3.48 8.36 2.60 3.03 6.99 3.11 2.57 3.04 40.86
1999 3.03 1.21 1.71 5.80 1.94 3.88 1.47 5.06 1.09 1.32 0.29 3.65 30.45
1998 4.04 1.85 4.62 3.83 3.35 3.96 3.88 4.23 1.67 3.31 1.19 2.37 38.30
1997 1.94 3.01 1.29 1.60 3.46 4.04 6.35 3.97 1.61 1.89 1.80 1.73 32.69
1996 1.26 1.37 0.78 3.91 9.70 7.19 6.81 1.58 3.66 3.99 2.42 2.54 45.21
1995 2.99 1.12 2.47 5.19 3.86 2.23 2.35 4.46 1.16 2.55 3.99 1.11 33.48
1994 2.01 1.56 0.69 2.51 1.79 8.28 3.75 4.32 2.02 1.47 5.79 2.16 36.35
1993 3.48 1.17 2.93 6.00 1.74 13.07 1.71 4.02 7.33 4.17 2.80 1.32 49.74
1992 0.91 1.44 2.37 1.82 0.96 2.70 5.50 1.38 7.32 1.77 5.16 3.21 34.54
1991 1.56 1.01 5.16 4.86 4.69 2.94 1.35 3.60 2.70 8.46 4.10 1.83 42.26
1990 2.07 3.77 2.77 2.89 6.87 4.50 5.35 12.32 2.62 6.15 8.53 3.46 61.30
1989 M M M M M 5.46 2.84 3.06 4.04 2.76 2.77 1.06 N/A

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