Temperature for September
In Grand Island, NE during September the average high temperature is 80.7°F. The hottest day on record was September 6, 1998 when the temperature hit 104.0°F.

In Grand Island, NE during September the average high temperature is 80.7°F. The hottest day on record was September 6, 1998 when the temperature hit 104.0°F.
In September the average monthly rainfall in Grand Island, NE is 2.84 inches with rain usually falling on between 8 and 9 days. 1998 was the driest September with only 0.01 inches of rain falling, and 1993 was the wettest September with 14.46 inches of rain. The wettest single day in September was 2 September 1977 when 5.67 inches of rain fell.
In September it usually snows on between 0 and 1 days. Tornados are reported on 0 and 1 days in September. There are thunderstorms on between 3 and 4 days in September.