Temperature for December 1999
In December 1999 the average high temperature in Grand Island, NE was 47.1°F, and this was 6.4°F warmer than the average of 40.7°F. The hottest day in December 1999 was 29 December when the temperature reached 68.0°F. Overnight the average temperature in December is 17.1°F and in 1999 the average overnight temperature was 3.0°F warmer at 20.1°F.