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<br />AVERAGE SEASONAL RAINFALL <br /> <br />South Dakota's seasonal (May-August)rainfall varies from <br />8 to 14 inches. Parts of Wyoming and Montana are normally <br />drier: Minnesota and Iowa wetter. <br /> <br />"i <br /> <br />, <br /> <br />{' <br />1 <br /> <br />8 <br /> <br />10 12 \ 14 <br /> <br />IV \U <br />IV <br /> <br /> <br />._._._._._._._._'~. <br /> <br /> <br />12) <br />Go <br /> <br />14 <br /> <br /> <br />) <br /> <br /> <br />c!.!.> <br /> <br />: _.[)_. <br /> <br />6 8 <br /> <br />10 <br /> <br />12 <br /> <br />14 <br /> <br />16 <br /> <br />Monthly Normals of Precipitation in Inches for South Dakota <br /> <br />January February March April May June July August <br />0.47 0.55 0.96 1.85 2.70 3.61 2.06 2.14 <br /> <br />September OCtober November December <br />1.45 1.04 0.64 0.42 <br /> <br />22 <br />