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Dreamstime

With an average daily low temperature of 30.9 degrees, Sheridan, Wyo., gets an average of 73.1 inches of snow, ice and sleet a year. The town of almost 18,000 sits on the eastern edge of the snow-capped Bighorn Mountains. Area oil and coal workers better be ready to bundle up as the lowest temperature to hit Sheridan in the last 30 years was -37 F.