Climate
The region has the most extreme variation between summer and winter temperatures in the Western Hemisphere. Summers are very hot and winters very cold. For example, Sioux Falls averages 25 days each year with temperatures above 90 °F (32 °C) and 45 days each year with temperatures below 5 °F (−15 °C). Mitchell, South Dakota has a record high of 116 °F (47 °C) and a record low of −39 °F (−39 °C).
The growing season is shorter, cooler, and drier than areas further south and east. The region's western boundary is sometimes considered to be determined by where the climate becomes too dry to support growing non-irrigated crops other than small grains or hay grass.
Read more about this topic: Upper Midwest
Famous quotes containing the word climate:
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