weather in saint george utah
St. George, Utah â Monthly Climate Averages. St. George is located within the northern extension of the Mojave Desert. The desert climate contributes to generally clear skies, relatively mild winters and hot summers. Residents and visitors enjoy over 300 days of sunshine per year. The temperature varies from a low in January and December of 31Â°F to 102Â°F in July. The elevation in St. George is 2,880 feet above sea level, rising to over 10,000 feet in the Pine Valley Mountainsâonly 20 miles to the North. Contact Us 435-628-1658