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The average temperature of Saint George is 56.23Â°F, which is much higher than the Utah average temperature of 49.55Â°F and is higher than the national average temperature of 54.45Â°F.
St. George, Utah, gets 8 inches of rain per year. The US average is 37. Snowfall is 3 inches. The average US city gets 25 inches of snow per year. The number of days with any measurable precipitation is 43. On average, there are 255 sunny days per year in St. George, Utah. The July high is around 102 degrees. The January low is 26. Our comfort index, which is based on humidity during the hot months, is a 52 out of 100, where higher is more comfortable.