The climate of the Coachella Valley is influenced by the surrounding geography. High mountain ranges on three sides contribute to its unique and year-round warm climate, with some of warmest winters west of the Rocky Mountains. Indio has a warm winter/hot summer desert climate : Its average annual high temperature is 89.5 °F (31.9 °C) and average annual low is 62.1 °F (16.7 °C) but summer highs above 108 °F (42 °C) are common and sometimes exceed 120 °F (49 °C), while summer night lows often stay above 82 °F (28 °C). Monsoon related thunderstorms can occur in the summer months. In September of 1939, a thunderstorm from the remains of a tropical storm, brought more than 6″ of rain in less than 24 hours. Winters are warm with daytime highs often between 68–86 °F (20–30 °C). Under 4 inches (100 mm) of annual precipitation are average, with over 348 days of sunshine per year. The hottest temperature ever recorded there was 125 °F (52 °C) on July 6, 1905. The mean annual temperature is 75.8 °F (24.3 °C).
Indio, CA Weather
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