Nebraska
Average annual precipitation decreases east to west from about in the southeast corner of the state to about in the Panhandle. Humidity also decreases significantly from east to west. Snowfall across the state is fairly even, with most of Nebraska receiving between of snow each year. Nebraska's highest-recorded temperature was in Minden on July 24, 1936. The state's lowest-recorded temperature was in Camp Clarke on February 12, 1899.
Sandhills (Nebraska)
Paleoclimate proxy data and computer simulations reveal that the Nebraska Sandhills likely had active sand dunes as recently as the Medieval Warm Period, when temperatures in the North Atlantic region were about 1 °C (1.8 °F) warmer than the current climate. Much of the area was a scrub desert, with desert-like conditions extending to several other states. Current global warming may make the grassland climate more unstable, giving way to desert given more fires, mild drought and erosion; UCAR simulations based on evapotranspiration support a Palmer Drought Index lower than -15, many times more severe than Texas during the Dust Bowl.