# Picacho, Arizona

Picacho (/piːkɑːtʃoʊ/) is an unincorporated community and census-designated place in Pinal County, Arizona, United States. The population was 250 at the 2020 census.
Picacho is located near Interstate 10, 4.5 miles (7.2 km) southeast of Eloy and 7 miles (11 km) northwest of Picacho Peak State Park. Picacho has a post office with ZIP code 85241, which opened in 1881. The community's name is Spanish for "peak" and is derived from the Picacho Mountains. Picacho has a ZIP Code of 85241; in 2000, the population of the 85241 ZCTA was 521.
By late 2012, parts of Picacho were to be removed under Arizona eminent domain law on account of Interstate 10 expansion.

## Demographics

In 2010 Picacho had a population of 471. The racial and ethnic makeup of the population was 62.4% Hispanic or Latino, 33.8% non-Hispanic white, 0.6% non-Hispanic black, 0.7% Hispanic blacks, 1.5% non-Hispanic Native American, 1.0% Hispanic Native Americans, 0.6% non-Hispanics reporting some other race and 7.0% of the population reporting two or more races.

## Climate

According to the Köppen Climate Classification system, Picacho has a hot desert climate, abbreviated "BWh" on climate maps. The hottest temperature recorded in Picacho was 119 °F (48.3 °C) on July 28, 1995, while the coldest temperature recorded was 18 °F (−7.8 °C) on January 15, 2007.
Climate data for Picacho, Arizona, 1991–2020 normals, extremes 1987–present :
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °F (°C) | 85 (29) | 89 (32) | 99 (37) | 105 (41) | 112 (44) | 118 (48) | 119 (48) | 114 (46) | 114 (46) | 106 (41) | 100 (38) | 84 (29) | 119 (48) |
| Mean maximum °F (°C) | 77.9 (25.5) | 81.6 (27.6) | 89.3 (31.8) | 97.7 (36.5) | 104.9 (40.5) | 111.4 (44.1) | 112.2 (44.6) | 110.3 (43.5) | 106.7 (41.5) | 99.6 (37.6) | 89.0 (31.7) | 77.5 (25.3) | 113.6 (45.3) |
| Mean daily maximum °F (°C) | 66.7 (19.3) | 70.6 (21.4) | 77.9 (25.5) | 85.8 (29.9) | 94.6 (34.8) | 103.7 (39.8) | 104.4 (40.2) | 102.6 (39.2) | 98.6 (37.0) | 88.7 (31.5) | 76.4 (24.7) | 65.6 (18.7) | 86.3 (30.2) |
| Daily mean °F (°C) | 53.8 (12.1) | 56.9 (13.8) | 63.0 (17.2) | 69.9 (21.1) | 78.7 (25.9) | 88.1 (31.2) | 91.2 (32.9) | 90.1 (32.3) | 85.3 (29.6) | 74.5 (23.6) | 62.5 (16.9) | 52.8 (11.6) | 72.2 (22.3) |
| Mean daily minimum °F (°C) | 41.0 (5.0) | 43.3 (6.3) | 48.2 (9.0) | 54.1 (12.3) | 62.9 (17.2) | 72.4 (22.4) | 78.1 (25.6) | 77.6 (25.3) | 72.0 (22.2) | 60.4 (15.8) | 48.6 (9.2) | 40.1 (4.5) | 58.2 (14.6) |
| Mean minimum °F (°C) | 28.3 (−2.1) | 32.2 (0.1) | 36.4 (2.4) | 42.5 (5.8) | 51.5 (10.8) | 62.0 (16.7) | 68.8 (20.4) | 69.3 (20.7) | 61.5 (16.4) | 47.1 (8.4) | 34.8 (1.6) | 27.6 (−2.4) | 25.5 (−3.6) |
| Record low °F (°C) | 18 (−8) | 19 (−7) | 28 (−2) | 36 (2) | 42 (6) | 50 (10) | 58 (14) | 62 (17) | 52 (11) | 35 (2) | 25 (−4) | 20 (−7) | 18 (−8) |
| Average precipitation inches (mm) | 1.01 (26) | 1.15 (29) | 0.90 (23) | 0.28 (7.1) | 0.22 (5.6) | 0.20 (5.1) | 1.26 (32) | 1.86 (47) | 0.92 (23) | 0.49 (12) | 0.51 (13) | 1.15 (29) | 9.95 (251.8) |
| Average precipitation days (≥ 0.01 in) | 4.1 | 3.9 | 3.3 | 1.3 | 1.1 | 1.0 | 5.4 | 6.1 | 3.5 | 2.5 | 2.7 | 4.2 | 39.1 |
| Average relative humidity (%) | 43 | 39 | 29 | 21 | 19 | 17 | 31 | 33 | 33 | 32 | 34 | 45 | 31 |
| Mean monthly sunshine hours | 220.1 | 254.3 | 288.3 | 327.0 | 372.0 | 366.0 | 372.0 | 378.2 | 291.0 | 251.1 | 219.0 | 213.9 | 3,552.9 |
| Mean daily sunshine hours | 7.1 | 9 | 9.3 | 10.9 | 12 | 12.2 | 12 | 12.2 | 9.7 | 8.1 | 7.3 | 6.9 | 9.7 |
| Mean daily daylight hours | 10.3 | 11.0 | 12.0 | 13.0 | 13.9 | 14.3 | 14.1 | 13.3 | 12.4 | 11.4 | 10.5 | 10.0 | 12.2 |
| Percent possible sunshine | 69 | 82 | 78 | 84 | 86 | 85 | 85 | 92 | 78 | 71 | 70 | 69 | 79 |
| Average ultraviolet index | 4 | 4 | 6 | 6 | 7 | 8 | 8 | 8 | 7 | 5 | 4 | 3 | 6 |
| Source 1: NOAA ||||||||||||||
| Source 2: National Weather Service Weather Atlas (humidity, sun data) ||||||||||||||