Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Chuichu enjoys a temperate climate with an average annual temperature of 69°F (21°C). Winters average 49°F in January while summers reach 90°F in July. The area gets 330 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 8.0 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 45. The city sits at an elevation of 1,470 feet.
Temperature
49°F Jan (10°C)90°F Jul (32°C)
Annual Average
68.9°F
28% above US avg
January Average
49°F (10°C)
July Average
90°F (32°C)
Sunny Days
330 days/yr
Geography
Elevation
1,470 ft (448 m)
Area
6.9 sq mi (17.8 km²)
Population Density
31/sq mi
Coordinates
32.7403°N, 111.7822°W
Timezone
America/Phoenix
County
Pinal County County
Nearest Airport
Marana Regional (AVW) 40 miles away
Precipitation & Snow
Annual Rainfall8.0"
79% below US avg
Snowfall0.0"
Wettest Month (Aug)1.54"
Driest Month (Jun)0.12"
Air Quality
AQI Median
45.0
Rating
Good
Natural Hazard Risk
Overall Risk
Relatively Moderate
Risk Score
93.8 / 100
Social Vulnerability
43.7 / 100
Community Resilience
13.9 / 100
Hazard Breakdown
Tornado
Relatively Low
Hurricane
Very Low
Earthquake
Relatively Low
Wildfire
Relatively High
Flood
Relatively High
Hail
Relatively Moderate
Strong Wind
Relatively Moderate
Heat Wave
Relatively High
Winter Weather
Very Low
Lightning
Very High
Drought
Relatively High
Cold Wave
Very Low
Landslide
Very Low
Avalanche
Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
11 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M3.1.
Jun 25, 2010
8 km SW of Roosevelt, Arizona
M3.1
111 km
5 km
Sep 28, 2023
21 km E of Tanque Verde, Arizona
M3.1
133 km
12 km
Mar 31, 1996
147km ESE of Fortuna Foothills, Arizona
M3.0
141 km
6 km
Sep 9, 2014
6 km SE of Roosevelt, Arizona
M2.9
117 km
3 km
Aug 30, 2014
8 km W of Rock House, Arizona
M2.9
122 km
3 km
Sep 26, 2010
3 km NNW of Roosevelt, Arizona
M2.8
122 km
5 km
Jun 6, 2020
5 km NW of New River, Arizona
M2.6
140 km
5 km
Feb 25, 2022
1 km S of Roosevelt, Arizona
M2.6
118 km
5 km
Aug 9, 2025
14 km ENE of Willow Canyon, Arizona
M2.6
120 km
12 km
Feb 15, 2022
6 km S of Roosevelt, Arizona
M2.5
114 km
10 km
Feb 12, 2022
2 km ESE of Roosevelt, Arizona
M2.5
119 km
5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
93 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF2. Total: 3 fatalities, 119 injuries.
Date
Rating
Distance
Path
Fatalities
Jul 28, 1994
EF2
82 km
2.0 mi
0
Jan 17, 1993
EF2
98 km
2.1 mi
0
Jun 21, 1972
EF2
84 km
13.5 mi
0
Sep 14, 1971
EF2
91 km
0.1 mi
0
Aug 30, 1971
EF2
71 km
4.7 mi
0
Jul 4, 1968
EF2
73 km
0.1 mi
0
Aug 27, 1964
EF2
93 km
0.1 mi
2
Feb 13, 1995
EF1
68 km
0.5 mi
0
Jan 18, 1993
EF1
45 km
2.0 mi
0
Jul 6, 1992
EF1
98 km
2.8 mi
0
May 23, 1992
EF1
87 km
0.5 mi
0
Jan 6, 1992
EF1
87 km
1.2 mi
0
Aug 24, 1991
EF1
60 km
1.0 mi
0
Jul 20, 1988
EF1
30 km
0.5 mi
0
Nov 18, 1986
EF1
79 km
0.5 mi
0
Mar 15, 1985
EF1
35 km
0.1 mi
0
Jul 22, 1984
EF1
33 km
1.0 mi
0
Jul 16, 1984
EF1
97 km
0.1 mi
0
Aug 16, 1983
EF1
80 km
0.3 mi
0
Aug 8, 1983
EF1
92 km
0.2 mi
0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Nearby Volcanoes
1 volcano within 200 km.
Closest: Pinacate (194 km).
Name
Type
Elevation
Last Eruption
Distance
Pinacate
Pyroclastic cone(s)
1,200 m (3,937 ft)
Unknown
194 km
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km.
Largest: TELEGRAPH (187,248 acres, 2021).
Year
Name
Acres Burned
Distance
2021
TELEGRAPH
187,248
97 km
2024
FREEMAN
32,950
77 km
2022
CONTRERAS
31,297
94 km
2020
SAWTOOTH
23,174
85 km
2024
SIPHON
15,019
88 km
1993
SPRINGS
13,472
80 km
2005
UNNAMED
9,537
87 km
2020
SUPERSTITION
8,169
86 km
2005
PEACHVILLE
8,086
93 km
2005
VEKOL
7,349
43 km
2024
ROMERO
7,285
79 km
2007
ALAMBRE
7,221
96 km
2024
WOOD
7,074
81 km
1995
MONTEZUMA
6,732
73 km
2009
SAN JUAN
6,710
87 km
2008
ETHAN
6,541
79 km
1985
SAN IGNACI
6,377
78 km
1995
WHITE CANYON
5,738
74 km
2005
TRACKS
5,641
63 km
1987
TILLA 2
5,519
95 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
49°F (10°C)
0.8 in
Coldest
February
56°F (13°C)
0.7 in
March
61°F (16°C)
0.9 in
April
68°F (20°C)
0.3 in
May
76°F (25°C)
0.2 in
June
86°F (30°C)
0.1 in
Driest
July
90°F (32°C)
1.2 in
Warmest
August
89°F (32°C)
1.5 in
Wettest
September
84°F (29°C)
0.9 in
October
73°F (23°C)
0.8 in
November
60°F (16°C)
0.7 in
December
52°F (11°C)
1.2 in
Chuichu has a seasonal temperature swing of 40°F / from 49°F in January to 90°F in July. Total annual precipitation is 9.2 inches, with August being the wettest month (1.5") and June the driest (0.1").