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Weather & Climate in Fort Thomas, AZ
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Fort Thomas enjoys a temperate climate with an average annual temperature of 65°F (18°C). Winters average 45°F in January while summers reach 85°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 10.2 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 2,727 feet.
Temperature
45°F Jan (7°C)
85°F Jul (30°C)
| Annual Average | 64.5°F |
| 19% above US avg | |
| January Average | 45°F (7°C) |
| July Average | 85°F (30°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 2,727 ft (831 m) |
| Area | 8.7 sq mi (22.5 km²) |
| Population Density | 37/sq mi |
| Coordinates | 33.0304°N, 109.9613°W |
| Timezone | America/Phoenix |
| County | Greenlee County County |
| Nearest Airport | Safford Regional (SAD) 23 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 45.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 12.4 / 100 |
| Social Vulnerability | 37.4 / 100 |
| Community Resilience | 22.3 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Drought | Relatively 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
66 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 | 89 km | 6 km |
| Jun 29, 2014 | 12 km S of Franklin, Arizona | M4.0 | 96 km | 5 km |
| Jul 3, 2014 | 11 km S of Franklin, Arizona | M3.9 | 96 km | 5 km |
| Jul 12, 2014 | 17 km S of Franklin, Arizona | M3.6 | 98 km | 5 km |
| Jun 29, 2014 | 16 km SSW of Franklin, Arizona | M3.6 | 93 km | 5 km |
| Jul 10, 2014 | 16 km S of Franklin, Arizona | M3.6 | 97 km | 5 km |
| Jul 11, 2014 | 5 km WSW of Franklin, Arizona | M3.6 | 89 km | 5 km |
| Oct 8, 2012 | 32 km WNW of Glenwood, New Mexico | M3.6 | 80 km | 5 km |
| Jul 9, 2014 | 13 km S of Franklin, Arizona | M3.6 | 98 km | 5 km |
| May 24, 2010 | 27 km NNE of Morenci, Arizona | M3.6 | 74 km | 5 km |
| May 24, 2010 | 24 km NNE of Morenci, Arizona | M3.6 | 71 km | 5 km |
| Jun 30, 2014 | 19 km SSW of Franklin, Arizona | M3.5 | 97 km | 5 km |
| Jun 29, 2014 | 14 km S of Franklin, Arizona | M3.5 | 100 km | 5 km |
| Oct 29, 2012 | 35 km WNW of Glenwood, New Mexico | M3.5 | 78 km | 5 km |
| Jul 6, 2014 | Arizona | M3.5 | 91 km | 5 km |
| Jul 11, 2014 | 12 km SSW of Franklin, Arizona | M3.5 | 92 km | 5 km |
| Apr 27, 2019 | 2 km WSW of Franklin, Arizona | M3.4 | 90 km | 10 km |
| Jan 25, 2015 | 9 km S of Franklin, Arizona | M3.4 | 96 km | 5 km |
| Jun 29, 2014 | 10 km SW of Franklin, Arizona | M3.4 | 89 km | 5 km |
| Feb 16, 2013 | 34 km WNW of Glenwood, New Mexico | M3.3 | 80 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
12 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF1. Total: 14 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Sep 23, 2019 | EF1 | 85 km | 1.7 mi | 0 |
| Jul 14, 1996 | EF1 | 80 km | 0.1 mi | 0 |
| Oct 23, 1974 | EF1 | 84 km | 4.7 mi | 0 |
| Oct 23, 1974 | EF1 | 82 km | 0.1 mi | 0 |
| Jul 17, 1971 | EF1 | 88 km | 0.1 mi | 0 |
| Aug 9, 1966 | EF1 | 88 km | 0.1 mi | 0 |
| Jul 31, 2015 | EF0 | 30 km | 0.6 mi | 0 |
| Aug 15, 2014 | EF0 | 85 km | 0.8 mi | 0 |
| Aug 24, 1993 | EF0 | 94 km | 0.1 mi | 0 |
| Aug 17, 1992 | EF0 | 69 km | 0.1 mi | 0 |
| Jul 25, 1974 | EF0 | 88 km | 0.1 mi | 0 |
| Sep 9, 1972 | EF0 | 95 km | 0.1 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Nearby Volcanoes
1 volcano within 200 km. Closest: Red Hill (171 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Red Hill | Volcanic field | 2,300 m (7,546 ft) | -9450 | 171 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 | 95 km |
| 2001 | UNNAMED | 151,684 | 28 km |
| 2020 | BIGHORN | 126,131 | 97 km |
| 2021 | MESCAL | 79,346 | 65 km |
| 2014 | SKUNK | 73,774 | 47 km |
| 2020 | GRIFFIN | 61,455 | 84 km |
| 2017 | FRYE | 54,202 | 37 km |
| 2021 | PINNACLE | 35,281 | 28 km |
| 2015 | WHITETAIL | 33,592 | 64 km |
| 2020 | COW CANYON | 33,536 | 99 km |
| 2017 | HILLTOP | 32,983 | 79 km |
| 2024 | FREEMAN | 32,950 | 98 km |
| 2004 | NUTALL COMPLEX (NUTALL) | 31,880 | 36 km |
| 2002 | BULLOCK | 31,774 | 95 km |
| 2020 | VALLEY | 29,331 | 50 km |
| 2020 | BLUE RIVER | 29,314 | 63 km |
| 2018 | RATTLESNAKE | 27,383 | 82 km |
| 2020 | BLUE RIVER 2 | 26,885 | 55 km |
| 2017 | BURRO | 26,852 | 95 km |
| 2003 | KINISHBA | 26,205 | 97 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 45°F (7°C) | 1.3 in | |
| February | 48°F (9°C) | 1.2 in | |
| March | 52°F (11°C) | 1.2 in | |
| April | 59°F (15°C) | 0.4 in | |
| May | 68°F (20°C) | 0.4 in | Driest |
| June | 77°F (25°C) | 0.4 in | |
| July | 85°F (30°C) | 2.2 in | Warmest |
| August | 80°F (26°C) | 2.4 in | Wettest |
| September | 74°F (24°C) | 1.5 in | |
| October | 64°F (18°C) | 1.3 in | |
| November | 52°F (11°C) | 1.0 in | |
| December | 44°F (7°C) | 1.5 in | Coldest |
Fort Thomas has a seasonal temperature swing of 41°F / from 44°F in December to 85°F in July. Total annual precipitation is 14.8 inches, with August being the wettest month (2.4") and May the driest (0.4").