Capitol Reef National Park has an arid climate with precipitation averaging 7.98 inches (20.3 cm) annually at the park visitor center weather station. Much of the precipitation falls during the summer monsoon season, usually from July to September. During monsoon season, summer downpours can create dangerous flash floods, as well as beautiful ephemeral waterfalls. Always check the weather forecast before hiking in canyons during monsoon season. Your safety is your responsibility.
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Except for July and August, daily high temperatures usually range about 10° F on either side of the average monthly high temperature shown. July and August highs range about 5° F on either side of the average monthly high shown.
Low temperatures usually range about 10° F on either side of the average low temperatures shown for the months January through April and November through December. Low temperatures for May through October will range about 5° F on either side of the average monthly low shown.
Last updated: February 23, 2020