Temperature for May 1999
In May 1999 the average high temperature in Grand Island, NE was 72.5°F, and this was 2.9°F cooler than the average of 75.4°F. The hottest day in May 1999 was 9 May when the temperature reached 82.9°F. Overnight the average temperature in May is 48.7°F and in 1999 the average overnight temperature was 2.4°F warmer at 51.1°F.