Data reflects average daily precipitation in mm for each state: https://en.wikipedia.org/wiki/United_States_rainfall_climatology

Also available through Shapeways: http://shpws.me/N4we

Customized version of http://www.thingiverse.com/thing:209005
Created with Customizer! http://www.thingiverse.com/apps/customizer/run?thing_id=209005

instructions:

floor_thickness = 0
data47 = 1.14
data46 = 2.31
data45 = 3.08
data44 = 2.91
data43 = 3.03
data42 = 3.15
data41 = .97
data40 = 1.94
data19 = 2.32
data18 = 3.36
data17 = 3.08
data16 = 3.12
data15 = 4.02
data14 = 3.34
data13 = 2.05
data12 = 2.38
data11 = 2.97
data10 = 2.76
data9 = 1.68
data8 = 3.39
data7 = 3.67
data6 = 3.1
data5 = 3.44
data4 = 1.3
data3 = 1.58
data2 = 3.48
data1 = .86
data0 = 3.81
y_size_limit = 130
upper_bound = 4.25
data39 = 3.55
data38 = 1.42
data37 = 3.28
data36 = 3.44
data35 = 2.98
data34 = 2.24
data33 = 2.49
data32 = 2.71
data31 = 1.28
data30 = 3.35
wall_thickness = 0
inflation = 1.0001
x_size_limit = 130
z_size_limit = 20
data29 = 2.98
data28 = 1.01
data27 = 3.29
data26 = 3.25
data25 = .71
data24 = 1.68
data23 = 1.29
data22 = 3
data21 = 3.95
data20 = 1.89
lower_bound = 0.6