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Weather & Climate in Vaiva Vo, AZ
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Vaiva Vo 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 1,433 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 | 1,433 ft (437 m) |
| Area | 0.5 sq mi (1.2 km²) |
| Population Density | 337/sq mi |
| Coordinates | 32.7167°N, 111.9269°W |
| Timezone | America/Phoenix |
| County | Pinal County County |
| Nearest Airport | Marana Regional (AVW) 46 miles away |
Precipitation & Snow
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
12 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.5.
| Aug 8, 2000 | 39 km S of Dateland, Arizona | M3.5 | 148 km | 5 km |
| Jun 25, 2010 | 8 km SW of Roosevelt, Arizona | M3.1 | 120 km | 5 km |
| Sep 28, 2023 | 21 km E of Tanque Verde, Arizona | M3.1 | 144 km | 12 km |
| Mar 31, 1996 | 147km ESE of Fortuna Foothills, Arizona | M3.0 | 129 km | 6 km |
| Sep 9, 2014 | 6 km SE of Roosevelt, Arizona | M2.9 | 127 km | 3 km |
| Aug 30, 2014 | 8 km W of Rock House, Arizona | M2.9 | 132 km | 3 km |
| Sep 26, 2010 | 3 km NNW of Roosevelt, Arizona | M2.8 | 131 km | 5 km |
| Jun 6, 2020 | 5 km NW of New River, Arizona | M2.6 | 139 km | 5 km |
| Feb 25, 2022 | 1 km S of Roosevelt, Arizona | M2.6 | 128 km | 5 km |
| Aug 9, 2025 | 14 km ENE of Willow Canyon, Arizona | M2.6 | 133 km | 12 km |
| Feb 15, 2022 | 6 km S of Roosevelt, Arizona | M2.5 | 124 km | 10 km |
| Feb 12, 2022 | 2 km ESE of Roosevelt, Arizona | M2.5 | 129 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
87 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 72 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jul 28, 1994 | EF2 | 93 km | 2.0 mi | 0 |
| Jun 21, 1972 | EF2 | 84 km | 13.5 mi | 0 |
| Sep 14, 1971 | EF2 | 88 km | 0.1 mi | 0 |
| Aug 30, 1971 | EF2 | 73 km | 4.7 mi | 0 |
| Oct 3, 1968 | EF2 | 98 km | 0.1 mi | 0 |
| Jul 4, 1968 | EF2 | 78 km | 0.1 mi | 0 |
| Feb 13, 1995 | EF1 | 74 km | 0.5 mi | 0 |
| Jan 18, 1993 | EF1 | 53 km | 2.0 mi | 0 |
| May 23, 1992 | EF1 | 86 km | 0.5 mi | 0 |
| Jan 6, 1992 | EF1 | 86 km | 1.2 mi | 0 |
| Aug 24, 1991 | EF1 | 70 km | 1.0 mi | 0 |
| Jul 20, 1988 | EF1 | 43 km | 0.5 mi | 0 |
| Nov 18, 1986 | EF1 | 86 km | 0.5 mi | 0 |
| Mar 15, 1985 | EF1 | 47 km | 0.1 mi | 0 |
| Jul 22, 1984 | EF1 | 36 km | 1.0 mi | 0 |
| Aug 16, 1983 | EF1 | 80 km | 0.3 mi | 0 |
| Aug 8, 1983 | EF1 | 90 km | 0.2 mi | 0 |
| Sep 5, 1981 | EF1 | 4 km | 2.0 mi | 0 |
| Sep 5, 1981 | EF1 | 79 km | 1.0 mi | 0 |
| May 4, 1976 | EF1 | 89 km | 2.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Nearby Volcanoes
1 volcano within 200 km. Closest: Pinacate (181 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Pinacate | Pyroclastic cone(s) | 1,200 m (3,937 ft) | Unknown | 181 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: GOLDWATER (56,690 acres, 2005).
| Year | Name | Acres Burned | Distance |
| 2005 | GOLDWATER | 56,690 | 93 km |
| 2024 | FREEMAN | 32,950 | 91 km |
| 2022 | CONTRERAS | 31,297 | 95 km |
| 2020 | SAWTOOTH | 23,174 | 95 km |
| 2024 | SIPHON | 15,019 | 96 km |
| 1993 | SPRINGS | 13,472 | 94 km |
| 2005 | SAND TANK COMPLEX (SAND TANK) | 11,601 | 96 km |
| 2005 | UNNAMED | 9,537 | 74 km |
| 2020 | SUPERSTITION | 8,169 | 94 km |
| 2005 | VEKOL | 7,349 | 33 km |
| 2024 | ROMERO | 7,285 | 92 km |
| 2007 | ALAMBRE | 7,221 | 97 km |
| 2024 | WOOD | 7,074 | 94 km |
| 1995 | MONTEZUMA | 6,732 | 68 km |
| 2009 | SAN JUAN | 6,710 | 88 km |
| 2008 | ETHAN | 6,541 | 75 km |
| 1985 | SAN IGNACI | 6,377 | 79 km |
| 2005 | THEBA | 6,351 | 95 km |
| 2004 | CITRUS | 5,915 | 89 km |
| 1995 | WHITE CANYON | 5,738 | 87 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) | 0.8 in | |
| April | 68°F (20°C) | 0.3 in | |
| May | 77°F (25°C) | 0.1 in | Driest |
| June | 86°F (30°C) | 0.1 in | |
| July | 90°F (32°C) | 1.1 in | Warmest |
| August | 89°F (32°C) | 1.5 in | Wettest |
| September | 83°F (29°C) | 0.8 in | |
| October | 72°F (22°C) | 0.8 in | |
| November | 60°F (15°C) | 0.7 in | |
| December | 52°F (11°C) | 1.1 in |
Vaiva Vo has a seasonal temperature swing of 40°F / from 49°F in January to 90°F in July. Total annual precipitation is 8.8 inches, with August being the wettest month (1.5") and May the driest (0.1").