Arizona

National parks in Arizona

Arizona has 3 national parks and 12 other busy National Park System sites in this guide. The best months below balance mild weather and crowds.

Park	Best months	Busiest	July high / January low °F	Visitors a year
Grand Canyon National Park	Apr, May and Oct	Jul	85° / 19°	4,695,000
Saguaro National Park	Mar and Nov	Mar	99° / 30°	935,000
Petrified Forest National Park	Mar, Apr and Nov	Jun	92° / 22°	465,000
Lake Mead National Recreation Area	Jan, Feb and Dec	May	107° / 38°	6,116,000
Glen Canyon National Recreation Area	Apr and Nov	Jun	100° / 26°	4,554,000
Montezuma Castle National Monument	Mar, Apr and Nov	Mar	101° / 26°	356,000
Canyon de Chelly National Monument	Mar, May and Nov	Jun	93° / 19°	354,000
Wupatki National Monument	Apr, May and Nov	Jun	94° / 26°	189,000
Organ Pipe Cactus National Monument	Nov	Mar	104° / 41°	181,000
Walnut Canyon National Monument	Apr, May and Oct	Apr	86° / 20°	164,000
Coronado National Memorial	Apr, Oct and Nov	Mar	89° / 33°	161,000
Casa Grande Ruins National Monument	Nov	Mar	107° / 37°	101,000
Tuzigoot National Monument	Feb, Apr and Nov	Mar	101° / 30°	99,000
Sunset Crater Volcano National Monument	Apr and May	Jul	84° / 13°	88,000
Chiricahua National Monument	Apr, Oct and Nov	Mar	90° / 30°	68,000

Arizona parks by month

Month	Visitors, all 15 sites	Sites with mild weather
January	890,000	none
February	1,060,000	Tuzigoot National Monument
March	1,701,000	Saguaro, Petrified Forest, Montezuma Castle National Monument, Canyon de Chelly National Monument, Coronado National Memorial, Chiricahua National Monument
April	1,921,000	Grand Canyon, Petrified Forest, Glen Canyon National Recreation Area, Montezuma Castle National Monument, Canyon de Chelly National Monument, Wupatki National Monument, Walnut Canyon National Monument, Coronado National Memorial, Tuzigoot National Monument, Sunset Crater Volcano National Monument, Chiricahua National Monument
May	1,962,000	Grand Canyon, Petrified Forest, Canyon de Chelly National Monument, Wupatki National Monument, Walnut Canyon National Monument, Sunset Crater Volcano National Monument
June	1,995,000	none
July	1,928,000	none
August	1,705,000	none
September	1,584,000	none
October	1,512,000	Grand Canyon, Walnut Canyon National Monument, Coronado National Memorial, Chiricahua National Monument
November	1,172,000	Saguaro, Petrified Forest, Glen Canyon National Recreation Area, Montezuma Castle National Monument, Canyon de Chelly National Monument, Wupatki National Monument, Organ Pipe Cactus National Monument, Coronado National Memorial, Casa Grande Ruins National Monument, Tuzigoot National Monument, Chiricahua National Monument
December	1,096,000	none

Weather 1991–2020 NOAA normals at each park's nearest station. Visitors National Park Service recreation visits, 2023–2025 average. Mild means an average high of 55–80°F without above-normal rain.