Provo is the third largest city in Utah. It has an estimated population of 116,618. Provo’s climate lies in the transition zone between a humid subtropical climate and humid continental climate, with high temperatures averaging between about 94 °F or 34.4 °C in the summer and 40 °F or 4.4 °C in the winter. Average annual precipitation (rain and snow) is just under 20 inches (51 cm). The clearer part of the year in Provo begins around May 31 and lasts for 4.9 months, ending around October 27. On September 11, the clearest day of the year, the sky is clear, mostly clear, or partly cloudy 79% of the time, and overcast or mostly cloudy 21% of the time. The cloudier part of the year begins around October 27 and lasts for 7.1 months, ending around May 31. On March 1, the cloudiest day of the year, the sky is overcast or mostly cloudy 51% of the time, and clear, mostly clear, or partly cloudy 49% of the time.Natural features in provo include Bridal Veil Falls, Provo River, Utah Lake and Uinta-Wasatch-Cache National Forest.