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Weather & Climate in Star Valley, AZ
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Star Valley enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 41°F in January while summers reach 76°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 19.8 inches (drier than the 38-inch national average). The area receives 18.5 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 45. The city sits at an elevation of 4,867 feet.
Temperature
41°F Jan (5°C)
76°F Jul (24°C)
| Annual Average | 57.0°F |
| 6% above US avg | |
| January Average | 41°F (5°C) |
| July Average | 76°F (24°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 4,867 ft (1,483 m) |
| Area | 36.1 sq mi (93.6 km²) |
| Population Density | 70/sq mi |
| Coordinates | 34.2547°N, 111.2207°W |
| Timezone | America/Phoenix |
| County | Gila County County |
| Nearest Airport | Winslow-Lindbergh Regional (INW) 60 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 45.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 90.2 / 100 |
| Social Vulnerability | 86.7 / 100 |
| Community Resilience | 6.4 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively High |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively High |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Relatively Low |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
50 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.1.
| Mar 2, 2005 | 40 km SSW of Winslow West, Arizona | M5.1 | 56 km | 5 km |
| Jan 30, 2005 | 41 km NNE of Washington Park, Arizona | M4.0 | 58 km | 5 km |
| Jan 6, 1998 | 15 km WSW of Joseph City, Arizona | M3.9 | 99 km | 5 km |
| Jan 28, 2005 | 40 km NE of Washington Park, Arizona | M3.8 | 55 km | 5 km |
| Jul 23, 2023 | 2 km E of Chino Valley, Arizona | M3.8 | 124 km | 5 km |
| Mar 18, 2011 | 7 km NNW of Clarkdale, Arizona | M3.8 | 103 km | 5 km |
| Feb 8, 2005 | 37 km NE of Washington Park, Arizona | M3.6 | 52 km | 5 km |
| Jan 23, 2011 | 7 km NNW of Clarkdale, Arizona | M3.6 | 102 km | 5 km |
| Oct 25, 2011 | 4 km WSW of Paulden, Arizona | M3.5 | 137 km | 5 km |
| Nov 13, 1991 | 5 km NW of Prescott Valley, Arizona | M3.5 | 113 km | 5 km |
| Jul 1, 2005 | 23 km NE of Washington Park, Arizona | M3.4 | 38 km | 5 km |
| Apr 7, 2021 | 4 km ESE of Flagstaff, Arizona | M3.3 | 109 km | 5 km |
| Mar 18, 2025 | 13 km NNE of Clay Springs, Arizona | M3.2 | 92 km | 5 km |
| Jan 8, 2012 | 28 km SW of Winslow West, Arizona | M3.2 | 69 km | 5 km |
| Jul 1, 2005 | 37 km NE of Washington Park, Arizona | M3.2 | 51 km | 5 km |
| May 9, 2009 | 11 km SSW of Cordes Lakes, Arizona | M3.1 | 85 km | 5 km |
| Jun 25, 2010 | 8 km SW of Roosevelt, Arizona | M3.1 | 72 km | 5 km |
| May 5, 2015 | 6 km W of Munds Park, Arizona | M3.1 | 90 km | 7 km |
| Jun 17, 2014 | 17 km SSE of Williams, Arizona | M3.0 | 124 km | 10 km |
| Jun 18, 2022 | 4 km SW of Clay Springs, Arizona | M3.0 | 82 km | 10 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
36 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2.
| Date | Rating | Distance | Path | Fatalities |
| Jan 17, 1993 | EF2 | 94 km | 2.1 mi | 0 |
| Nov 19, 2023 | EF1 | 5 km | 2.4 mi | 0 |
| Jul 10, 2021 | EF1 | 40 km | 1.3 mi | 0 |
| Oct 6, 2010 | EF1 | 26 km | 14.1 mi | 0 |
| Nov 18, 1986 | EF1 | 98 km | 0.5 mi | 0 |
| May 4, 1976 | EF1 | 96 km | 2.0 mi | 0 |
| Oct 18, 1972 | EF1 | 97 km | 0.1 mi | 0 |
| Oct 17, 1962 | EF1 | 59 km | 2.0 mi | 0 |
| Jul 26, 2024 | EF0 | 95 km | 1.0 mi | 0 |
| Jul 24, 2020 | EF0 | 76 km | 0.4 mi | 0 |
| Sep 23, 2019 | EF0 | 86 km | 1.0 mi | 0 |
| Oct 21, 2018 | EF0 | 97 km | 1.7 mi | 0 |
| Aug 18, 2018 | EF0 | 98 km | 3.1 mi | 0 |
| Jul 15, 2013 | EF0 | 99 km | 0.1 mi | 0 |
| Oct 6, 2010 | EF0 | 86 km | 17.1 mi | 0 |
| Oct 6, 2010 | EF0 | 78 km | 7.3 mi | 0 |
| Jul 16, 2006 | EF0 | 86 km | 0.1 mi | 0 |
| Sep 4, 2004 | EF0 | 30 km | 1.0 mi | 0 |
| Aug 15, 2003 | EF0 | 60 km | — | 0 |
| Aug 14, 2003 | EF0 | 68 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Nearby Volcanoes
1 volcano within 200 km. Closest: San Francisco Volcanic Field (128 km).
| Name | Type | Elevation | Last Eruption | Distance |
| San Francisco Volcanic Field | Pyroclastic cone | 3,850 m (12,631 ft) | 1075 | 128 km |
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: RODEO (461,774 acres, 2002).
| Year | Name | Acres Burned | Distance |
| 2002 | RODEO | 461,774 | 70 km |
| 2005 | CAVE CREEK COMPLEX | 246,143 | 60 km |
| 2020 | BUSH | 212,542 | 51 km |
| 2019 | WOODBURY | 130,242 | 82 km |
| 2004 | WILLOW | 118,494 | 30 km |
| 2005 | EDGE COMPLEX | 69,291 | 54 km |
| 2020 | GRIFFIN | 61,455 | 97 km |
| 1996 | LONE | 60,574 | 64 km |
| 2021 | BACKBONE | 41,168 | 44 km |
| 2017 | BROOKLYN | 39,780 | 73 km |
| 2016 | JACK | 35,926 | 51 km |
| 2016 | JUNIPER | 32,293 | 51 km |
| 2017 | GOODWIN | 28,192 | 100 km |
| 2024 | SAND STONE | 26,470 | 63 km |
| 1990 | DUDE | 25,080 | 15 km |
| 2015 | CAMILLO | 24,654 | 67 km |
| 2020 | SAWTOOTH | 23,174 | 97 km |
| 2024 | SKELETON | 22,753 | 76 km |
| 2014 | SLIDE | 22,698 | 99 km |
| 1995 | RIO | 22,666 | 80 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 41°F (5°C) | 2.2 in | |
| February | 42°F (6°C) | 2.0 in | |
| March | 45°F (7°C) | 2.5 in | |
| April | 51°F (11°C) | 1.1 in | |
| May | 58°F (15°C) | 0.6 in | |
| June | 67°F (19°C) | 0.4 in | Driest |
| July | 76°F (24°C) | 2.5 in | Warmest |
| August | 74°F (23°C) | 3.0 in | Wettest |
| September | 69°F (20°C) | 2.1 in | |
| October | 59°F (15°C) | 1.7 in | |
| November | 48°F (9°C) | 1.9 in | |
| December | 41°F (5°C) | 2.2 in | Coldest |
Star Valley has a seasonal temperature swing of 35°F / from 41°F in December to 76°F in July. Total annual precipitation is 22.0 inches, with August being the wettest month (3.0") and June the driest (0.4").