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MLRA 109 - Iowa and Missouri Heavy Till Plain

lowa and Missouri
37,110 km2 (14,330 mi2)

Climate:
Average annual precipitation 825 to 1,025 mm. About two-thirds of the precipitation falls during the freeze-free period. The low precipitation in winter is snow. Average annual temperature 10 to 13 C. Average freeze-free period—160 to 180 days.


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12/16/98