Temperature for October 1991
In October 1991 the average high temperature in Casper, WY was 61.8°F, and this was 1.6°F cooler than the average of 63.4°F. The hottest day in October 1991 was 16 October when the temperature reached 82.0°F. Overnight the average temperature in October is 33.7°F and in 1991 the average overnight temperature was 0.6°F cooler at 33.1°F.