Be prepared for a wide range of weather conditions. Temperatures vary with
changes in elevation and seasons. Day/night temperatures may differ by over 30
degrees Fahrenheit.
Spring weather is very unpredictable. Stormy, wet days are common, but so is
warm, sunny weather.
Precipitation peaks in March and September. Spring wildflowers bloom from April
through June, peaking in May.
Summer days
are hot (95-107 degrees F.), but overnight lows are usually
comfortable (65-70 degrees F.) Afternoon thunderstorms are common from mid-July
through mid-September. Storms may produce waterfalls and flash floods.
Fall days
are usually clear and mild; nights are often cool. Autumn color
displays begin in September in the high country, and in Zion Canyon in early
November. Winters in Zion Canyon
are fairly mild. Winter storms bring rain or light
snow to Zion Canyon, but heavier snow to the higher elevations. Clear days may
become quite warm, reaching 60 degrees F.; nights are often in the 20s and 30s.
Winter storms can last several days and cause roads to be icy, especially on the
east side of Zion. Zion roads are plowed, except the Kolob Terrace Road, which
is closed in winter. Be prepared for winter driving conditions from November
through March.