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  3. Casper
  4. October

Casper, WY Climate in October

Temperature for October

In Casper, WY during October the average high temperature is 63.4°F. The hottest day on record was October 1, 1992 when the temperature hit 86.0°F.

Casper, WY daily average and extreme temperature range for October

Low Temperature

During October the overnight temperature drops to an average of 33.7°F, with the lowest temperature of 1.9°F being recorded on October 31, 1991. On average there are 2 days in October when the temperature stays below freezing all day. In the worst October there were 5 days when the temperature did not make it above freezing. Overnight temperatures drop below freezing between 4 and 27 times in October.

Precipitation for October

In October the average monthly rainfall in Casper, WY is 0.93 inches with rain usually falling on between 5 and 6 days. 1941 was the driest October with only 0.00 inches of rain falling, and 1998 was the wettest October with 4.61 inches of rain. The wettest single day in October was 17 October 1998 when 2.33 inches of rain fell.

In October it usually snows on between 4 and 5 days. In October there have been some years when thunderstorms have occurred, although there are other years when there hasn't been a thunderstorm in October.

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