September weather forecast and climate
Utah, USA

Flag of Utah, USA
Flag of Utah, USA

Weather in September

September sees a drop in the heat index in Utah, with the passage of the long summer by the middle of the month. The scorching sun, and usually brown landscape give way to moderate sunshine and colorful scenery. Snow-capped peaks in the background add to the natural beauty.
The average high temperatures in early fall are in the warm 61°F (16.1°C) to hot 92°F (33.3°C) range, while the average low temperatures are in the cold 37°F (2.8°C) to mild 63°F (17.2°C) range. Saint George in the west registers temperatures in the 63°F (17.2°C) to 92°F (33.3°C) range. Rainfall is only to the tune of 1" (25mm) to 2" (51mm) statewide.
Forests, national, and state parks offer a diverse range of colors due to different microclimates. Mountain trails and lakeshores offer a fantastic array of colors. Autumn nights are cold in the north and east and mild in the south. Expect temperatures to drop further with the progress of the season. September is the beginning of the pleasant fall weather in Utah.
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