Picacho Peak State ParkAbout Picacho Peak State Park
Picacho Peak State Park is an Arizona state park centered on a distinctive rocky peak that rises from the desert landscape along Interstate 10. The park protects the peak’s unique landform and provides trails and viewpoints for visitors.
Hiking and rock scrambling are the park’s primary activities, with a trail that leads toward the summit ridge and offers panoramic desert views. Trails include steep, exposed sections and are best attempted in cooler morning hours.
The peak is known locally for its association with a Civil War skirmish at Picacho Peak in 1862, which is commemorated by markers in the area. Park management combines recreation with protection of Sonoran Desert vegetation and wildlife.
The park lies in southern-central Arizona beside Interstate 10 between the metropolitan areas of Phoenix and Tucson, adjacent to the small community of Picacho.
- Hiking conditions: The nearby trail to the peak offers steep, rocky hiking with exposed sections; early starts are recommended to avoid heat.
- Historic event: The site is associated with the Civil War skirmish known as the Battle of Picacho Peak in 1862, a noted historical event in the area.
Best Time to Visit Picacho Peak State Park
Best visited in winter through early spring and autumn when temperatures are moderate; avoid strenuous daytime hikes in summer.
Weather & Climate near Picacho Peak State Park
Picacho Peak State Park's climate is classified as Hot-Summer Mediterranean - Hot-Summer Mediterranean climate with mild summers (peaking in July) and freezing winters (coldest in January). Temperatures range from -9°C to 29°C. Moderate rainfall (630 mm/year).
| Month | Comfort | Temp | Feels | Rain | Sky | Humidity | Wind | UV | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | - | -9° - 6° | -6° | 62 mm | - | - | 3.2 m/s | - | - |
| February | - | -7° - 8° | -3° | 60 mm | - | - | 3.4 m/s | - | - |
| March | - | -5° - 10° | -1° | 68 mm | - | - | 3.7 m/s | - | - |
| April | - | -3° - 15° | 3° | 31 mm | - | - | 4.1 m/s | - | - |
| May | - | 1° - 19° | 10° | 20 mm | - | - | 4.1 m/s | - | - |
| June | - | 5° - 25° | 15° | 11 mm | - | - | 3.9 m/s | - | - |
| July | - | 11° - 29° | 20° | 81 mm | - | - | 3.3 m/s | - | - |
| August | - | 11° - 27° | 19° | 87 mm | - | - | 3.0 m/s | - | - |
| September | - | 7° - 25° | 16° | 55 mm | - | - | 3.1 m/s | - | - |
| October | - | 1° - 20° | 11° | 44 mm | - | - | 3.2 m/s | - | - |
| November | - | -4° - 13° | 2° | 54 mm | - | - | 3.2 m/s | - | - |
| December | - | -8° - 8° | -4° | 57 mm | - | - | 3.0 m/s | - | - |
How to Get to Picacho Peak State Park
Located directly off Interstate 10 between Tucson and Phoenix; the park is signed from I-10 at Exit 219. It’s roughly 90 minutes from Phoenix and about 45-60 minutes from Tucson by car. There is limited public transport; driving is recommended.
Tips for Visiting Picacho Peak State Park
- Hike the summit trail early - the climb is steep and loose in sections; morning ascents avoid the heat.
- Bring plenty of water; desert heat can be severe even outside summer months.
- Watch for rattlesnakes in warm months; wear long pants and be cautious near shaded rock crevices.