Zion National Park UT Average Temperatures by Month

The numbers here tell you how hot and cold the weather usually is in Zion National Park, Utah during each month of the year.

The average high and low temperatures are listed below monthly and annually, in both degrees Fahrenheit and Celsius, for the Park's South Entrance and Canyon Junction area.

Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.

To find out how often it rises over 80, 90 or 100 °F each month at Zion Park, scroll down farther. There are also monthly and yearly counts of days with cold weather.

The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.

10-year temperature averages for Zion National Park, 2010 to 2019
High °F	Low °F		High °C	Low °C
55	30	January	13	-1
58	33	February	15	1
68	39	March	20	4
74	44	April	23	7
82	51	May	28	11
98	64	June	37	18
101	71	July	38	21
98	69	August	37	21
92	62	September	33	17
78	48	October	26	9
65	37	November	18	3
53	30	December	12	-1
77	48	Year	25	9

30-year temperature averages for Zion National Park, 1991 to 2020
High °F	Low °F		High °C	Low °C
54	30	January	12	-1
58	34	February	14	1
66	39	March	19	4
73	44	April	23	7
84	53	May	29	11
95	62	June	35	17
100	70	July	38	21
98	69	August	37	20
91	61	September	33	16
78	49	October	26	9
64	37	November	18	3
53	29	December	11	-2
76	48	Year	25	9

Days of Hot Weather in Zion National Park

Zion's valleys and canyons near the South Park Entrance turn into ovens during summer, that often heat up to over 100 degrees Fahrenheit. Half the year is vulnerable to hot weather here with temperatures in the 90s showing up as early as April and lingering into October.

Days per month in Zion National Park of at least 80, 90 or 100 °F
	80 °F 27 °C	90 °F 32 °C	100 °F 38 °C
January	0	0	0
February	0	0	0
March	2	0	0
April	9	1	0
May	23	10	1
June	29	25	12
July	31	30	20
August	31	30	15
September	28	20	3
October	17	4	0
November	2	0	0
December	0	0	0
Year	172	119	51

How Often Zion National Park Has Cold Temperatures

Frost at Zion Park's South Entrance appears sporadically from October to April. Freezing temperatures occur most nights during winter followed by thaws during the day.

The cold is seldom severe. While the coldest nights can drop to 10 °F (-12 °C), it doesn't get that chilly here every winter.

Days per month on average in Zion National Park when the minimum temperature drops to 20 or 32 °F or below
	20 °F -8 °C	32 °F 0 °C
January	4	18
February	2	12
March	0	7
April	0	3
May	0	0
June	0	0
July	0	0
August	0	0
September	0	0
October	0	2
November	1	9
December	5	20
Year	13	71

Park City Temperatures: Averages by Month

Days of Hot Weather in Zion National Park

How Often Zion National Park Has Cold Temperatures

References

More on Weather in Utah