About Zion Weather

Zion National Park weather is typical of southern Utah, with warm springs and autumns, mild winters, and very hot summers. Thunderstorms are frequent in the summer, causing the possibility of flash floods in Zion's many canyons. The statistics below are taken from the Zion Canyon area, where the vast majority of visitation takes place. Ample shade as the canyon narrows can moderate the temperatures in summer somewhat during most of the day.

Month Avg High Avg Low Record High Record Low Avg Pcpt
January 442067/1971-11/19632.02"
February 482476/1986-20/19892.53"
March 542880/20040/19762.60"
April 623485/198112/19821.07"
May 724295/200323/19751.03"
June 8350100/196129/19820.52"
July 8857104/198540/19821.13"
August 8656101/198136/19681.63"
September 794894/199623/19851.31"
October 673888/19806/19711.55"
November 532778/19673/19641.56"
December 452169/1995-19/19901.27"
Disclaimer about the stats

Visitation Seasons

The spring is a pleasant time to visit the park, with lower crowds and normally comfortable temperatures. The Virgin River is often too high for hiking the Narrows in spring.
The summer is the time of highest visitation, but is not the best time to visit. Temperatures can get very high during the day, and many of the exposed hikes can be uncomfortable or even dangerous. However, the Narrows hike is ideal in the heat of summer. Expect all lodging and camping to be full during the summer.
The fall is perhaps the best time to visit. Temperatures return to comfortable levels and the crowds thin. Lodging is more likely to be available, although camping can still fill at times.
The winter is cool but not often cold. Light snows in the canyon are occasional. The winter is the only time private vehicles are allowed on all park roads.

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