Avista (NYSE:AVA) reported quarterly earnings of $0.98 per share which missed the analyst consensus estimate of $1.01 by 2.97 percent. This is a 7.69 percent increase over earnings of $0.91 per share from the same period last year. The company reported quarterly sales of $617.00 million which missed the analyst consensus estimate of $631.86 million by 2.35 percent. This is a 1.31 percent increase over sales of $609.00 million the same period last year.