Temperature for May
In Grand Island, NE during May the average high temperature is 75.4°F. The hottest day on record was May 29, 1989 when the temperature hit 100.0°F.
Precipitation for May
In May the average monthly rainfall in Grand Island, NE is 4.50 inches with rain usually falling on between 12 and 13 days. 1975 was the driest May with only 1.06 inches of rain falling, and 1993 was the wettest May with 13.73 inches of rain. The wettest single day in May was 12 May 2005 when 7.21 inches of rain fell.
In May it usually snows on between 0 and 1 days. Tornados are reported on 0 and 1 days in May. There are thunderstorms on between 6 and 7 days in May.