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.
March 1913 tornado outbreak sequence
As the day progressed, the surface low ejected through Nebraska, with a dry line and trailing cold front. South winds blowing 40-50 knots at times brought the moister air rapidly northward. One of the worst dust storms on record occurred behind the dry line in western Kansas, but in the warm sector the day remained dry until mid afternoon when light showers began to form in central Nebraska. A cooperative observer in Osceola noted that the wind shifted from S to NW at 2230Z (4:30 PM local). Professors at the University of Nebraska at Lincoln noted that the relative humidity there jumped from 53% at 2150Z to 78% at 2230Z, indicating much higher dewpoints had rapidly arrived in Lincoln since the cold front was still to the west near Osceola. They also noted that the surface low passed just to the north of Omaha and was in western Iowa at 01Z 24 March 1913.