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Weather & Climate in San Simon, AZ
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
San Simon enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 44°F in January while summers reach 82°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 10.3 inches (drier than the 38-inch national average). The area receives 1.2 inches of snow annually. Air quality is rated Good with a median AQI of 45. The city sits at an elevation of 3,609 feet.
Temperature
44°F Jan (7°C)
82°F Jul (28°C)
| Annual Average | 62.9°F |
| 16% above US avg | |
| January Average | 44°F (7°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 3,609 ft (1,100 m) |
| Area | 0.3 sq mi (0.7 km²) |
| Population Density | 333/sq mi |
| Coordinates | 32.2682°N, 109.2302°W |
| Timezone | America/Phoenix |
| County | Graham County County |
| Nearest Airport | Safford Regional (SAD) 47 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 45.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 64.6 / 100 |
| Social Vulnerability | 71.6 / 100 |
| Community Resilience | 7.8 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Moderate |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively High |
| Drought | Relatively Moderate |
| Cold Wave | Very Low |
| Landslide | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
68 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.3.
| Jun 29, 2014 | 13 km SW of Franklin, Arizona | M5.3 | 35 km | 6 km |
| Jun 29, 2014 | 12 km S of Franklin, Arizona | M4.0 | 35 km | 5 km |
| Jul 3, 2014 | 11 km S of Franklin, Arizona | M3.9 | 37 km | 5 km |
| Jul 12, 2014 | 17 km S of Franklin, Arizona | M3.6 | 31 km | 5 km |
| Jul 11, 2014 | 5 km WSW of Franklin, Arizona | M3.6 | 44 km | 5 km |
| Jul 9, 2014 | 13 km S of Franklin, Arizona | M3.6 | 35 km | 5 km |
| May 24, 2010 | 24 km NNE of Morenci, Arizona | M3.6 | 112 km | 5 km |
| Aug 5, 2021 | 24 km SSE of Animas, New Mexico | M3.6 | 76 km | 16 km |
| May 24, 2010 | 27 km NNE of Morenci, Arizona | M3.6 | 115 km | 5 km |
| Oct 8, 2012 | 32 km WNW of Glenwood, New Mexico | M3.6 | 125 km | 5 km |
| Jul 10, 2014 | 16 km S of Franklin, Arizona | M3.6 | 32 km | 5 km |
| Jun 29, 2014 | 16 km SSW of Franklin, Arizona | M3.6 | 31 km | 5 km |
| Jul 11, 2014 | 12 km SSW of Franklin, Arizona | M3.5 | 35 km | 5 km |
| Jun 29, 2014 | 14 km S of Franklin, Arizona | M3.5 | 35 km | 5 km |
| Jun 30, 2014 | 19 km SSW of Franklin, Arizona | M3.5 | 28 km | 5 km |
| Apr 22, 2020 | 28 km SSW of Rodeo, New Mexico | M3.5 | 77 km | 21 km |
| Jul 6, 2014 | Arizona | M3.5 | 34 km | 5 km |
| Oct 29, 2012 | 35 km WNW of Glenwood, New Mexico | M3.5 | 126 km | 5 km |
| Apr 27, 2019 | 2 km WSW of Franklin, Arizona | M3.4 | 46 km | 10 km |
| Jan 25, 2015 | 9 km S of Franklin, Arizona | M3.4 | 40 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
14 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF1. Total: 5 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Sep 23, 2019 | EF1 | 63 km | 1.7 mi | 0 |
| Jul 17, 1971 | EF1 | 56 km | 0.1 mi | 0 |
| Jun 15, 1961 | EF1 | 50 km | 0.1 mi | 0 |
| Oct 7, 2015 | EF0 | 78 km | 1.7 mi | 0 |
| Sep 22, 2015 | EF0 | 97 km | 0.6 mi | 0 |
| Jul 31, 2015 | EF0 | 80 km | 0.6 mi | 0 |
| Aug 15, 2014 | EF0 | 72 km | 0.8 mi | 0 |
| Sep 6, 2007 | EF0 | 81 km | 3.1 mi | 0 |
| Oct 15, 2005 | EF0 | 59 km | 0.5 mi | 0 |
| Aug 17, 1992 | EF0 | 59 km | 0.1 mi | 0 |
| Jul 16, 1990 | EF0 | 69 km | 0.2 mi | 0 |
| Jun 24, 1974 | EF0 | 99 km | 1.0 mi | 0 |
| Sep 9, 1972 | EF0 | 57 km | 0.1 mi | 0 |
| Aug 31, 1966 | EF0 | 61 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: HORSESHOE 2 (226,079 acres, 2011).
| Year | Name | Acres Burned | Distance |
| 2011 | HORSESHOE 2 | 226,079 | 40 km |
| 2018 | OK BAR | 60,456 | 99 km |
| 2017 | FRYE | 54,202 | 77 km |
| 2003 | UNNAMED | 38,998 | 99 km |
| 1994 | FLAT COMPLEX | 34,859 | 97 km |
| 2004 | NUTALL COMPLEX (NUTALL) | 31,880 | 79 km |
| 2002 | WALNUT | 30,388 | 95 km |
| 1989 | GRAY | 28,758 | 89 km |
| 1994 | RATTLESNAKE | 25,238 | 46 km |
| 2009 | GREASEWOOD | 24,902 | 57 km |
| 2006 | ADOBE | 20,089 | 85 km |
| 2009 | HOG | 18,086 | 83 km |
| 2012 | GRAPEVINE | 17,542 | 65 km |
| 1989 | WHITLOCK | 16,986 | 39 km |
| 2017 | LIZARD | 15,791 | 80 km |
| 2015 | GREASEWOOD 2015 NON-WUI | 13,968 | 57 km |
| 2011 | GODFREY | 13,536 | 82 km |
| 2017 | SWISSHELMS | 10,798 | 70 km |
| 2021 | WALNUT | 10,576 | 86 km |
| 2016 | UNNAMED | 10,090 | 100 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (7°C) | 0.9 in | Coldest |
| February | 49°F (9°C) | 0.6 in | |
| March | 54°F (12°C) | 0.6 in | |
| April | 61°F (16°C) | 0.2 in | Driest |
| May | 69°F (21°C) | 0.2 in | |
| June | 78°F (26°C) | 0.4 in | |
| July | 82°F (28°C) | 2.2 in | Warmest, Wettest |
| August | 79°F (26°C) | 2.1 in | |
| September | 74°F (24°C) | 1.4 in | |
| October | 63°F (17°C) | 1.2 in | |
| November | 52°F (11°C) | 0.6 in | |
| December | 44°F (7°C) | 1.1 in |
San Simon has a seasonal temperature swing of 38°F / from 44°F in January to 82°F in July. Total annual precipitation is 11.4 inches, with July being the wettest month (2.2") and April the driest (0.2").