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Weather & Climate in Mesa, AZ
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Mesa has a warm climate with an average annual temperature of 74°F (23°C). Winters average 50°F in January while summers reach 99°F in July. The area gets 348 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 1,329 feet.
Temperature
50°F Jan (10°C)
99°F Jul (37°C)
| Annual Average | 73.5°F |
| 36% above US avg | |
| January Average | 50°F (10°C) |
| July Average | 99°F (37°C) |
| Sunny Days | 348 days/yr |
Geography
| Elevation | 1,329 ft (405 m) |
| Area | 138.6 sq mi (359.1 km²) |
| Population Density | 3,578/sq mi |
| Coordinates | 33.4006°N, 111.7165°W |
| Timezone | America/Phoenix |
| County | Pinal County County |
| Nearest Airport | Phoenix Sky Harbor International (PHX) 17 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: M3.4.
| Jul 1, 2005 | 23 km NE of Washington Park, Arizona | M3.4 | 144 km | 5 km |
| May 9, 2009 | 11 km SSW of Cordes Lakes, Arizona | M3.1 | 99 km | 5 km |
| Jun 25, 2010 | 8 km SW of Roosevelt, Arizona | M3.1 | 54 km | 5 km |
| Feb 19, 2025 | 0 km SW of Christopher Creek, Arizona | M3.0 | 120 km | 11 km |
| Sep 9, 2014 | 6 km SE of Roosevelt, Arizona | M2.9 | 63 km | 3 km |
| Aug 30, 2014 | 8 km W of Rock House, Arizona | M2.9 | 69 km | 3 km |
| Sep 26, 2010 | 3 km NNW of Roosevelt, Arizona | M2.8 | 62 km | 5 km |
| Jul 4, 2021 | 28 km NE of Washington Park, Arizona | M2.8 | 149 km | 5 km |
| Jun 6, 2020 | 5 km NW of New River, Arizona | M2.6 | 74 km | 5 km |
| Feb 25, 2022 | 1 km S of Roosevelt, Arizona | M2.6 | 61 km | 5 km |
| Feb 15, 2022 | 6 km S of Roosevelt, Arizona | M2.5 | 59 km | 10 km |
| Feb 12, 2022 | 2 km ESE of Roosevelt, Arizona | M2.5 | 63 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
91 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 77 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jan 17, 1993 | EF2 | 30 km | 2.1 mi | 0 |
| Jun 21, 1972 | EF2 | 27 km | 13.5 mi | 0 |
| Sep 14, 1971 | EF2 | 52 km | 0.1 mi | 0 |
| Aug 30, 1971 | EF2 | 19 km | 4.7 mi | 0 |
| Oct 3, 1968 | EF2 | 64 km | 0.1 mi | 0 |
| Jul 4, 1968 | EF2 | 3 km | 0.1 mi | 0 |
| Jul 14, 1996 | EF1 | 92 km | 0.1 mi | 0 |
| Feb 13, 1995 | EF1 | 6 km | 0.5 mi | 0 |
| Jan 18, 1993 | EF1 | 31 km | 2.0 mi | 0 |
| May 23, 1992 | EF1 | 34 km | 0.5 mi | 0 |
| Jan 6, 1992 | EF1 | 34 km | 1.2 mi | 0 |
| Jul 20, 1988 | EF1 | 68 km | 0.5 mi | 0 |
| Nov 18, 1986 | EF1 | 16 km | 0.5 mi | 0 |
| Mar 15, 1985 | EF1 | 51 km | 0.1 mi | 0 |
| Aug 9, 1984 | EF1 | 44 km | 0.5 mi | 0 |
| Jul 22, 1984 | EF1 | 43 km | 1.0 mi | 0 |
| Aug 16, 1983 | EF1 | 29 km | 0.3 mi | 0 |
| Aug 8, 1983 | EF1 | 49 km | 0.2 mi | 0 |
| Sep 5, 1981 | EF1 | 81 km | 2.0 mi | 0 |
| Sep 5, 1981 | EF1 | 64 km | 1.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: CAVE CREEK COMPLEX (246,143 acres, 2005).
| Year | Name | Acres Burned | Distance |
| 2005 | CAVE CREEK COMPLEX | 246,143 | 95 km |
| 2020 | BUSH | 212,542 | 56 km |
| 2021 | TELEGRAPH | 187,248 | 74 km |
| 2019 | WOODBURY | 130,242 | 52 km |
| 2004 | WILLOW | 118,494 | 81 km |
| 2005 | EDGE COMPLEX | 69,291 | 53 km |
| 1996 | LONE | 60,574 | 49 km |
| 2017 | BROOKLYN | 39,780 | 90 km |
| 2024 | FREEMAN | 32,950 | 99 km |
| 2016 | JUNIPER | 32,293 | 90 km |
| 2024 | SAND STONE | 26,470 | 43 km |
| 2020 | SAWTOOTH | 23,174 | 39 km |
| 2024 | SKELETON | 22,753 | 90 km |
| 1995 | RIO | 22,666 | 33 km |
| 2020 | SALT | 21,885 | 75 km |
| 1995 | BASIN | 21,533 | 64 km |
| 2012 | SUNFLOWER | 17,687 | 66 km |
| 2021 | TIGER | 16,380 | 97 km |
| 2005 | THREE FIRE COMPLEX (THREE) | 15,849 | 55 km |
| 2024 | SIPHON | 15,019 | 29 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 50°F (10°C) | 1.0 in | Coldest |
| February | 57°F (14°C) | 1.0 in | |
| March | 61°F (16°C) | 1.3 in | |
| April | 68°F (20°C) | 0.4 in | |
| May | 77°F (25°C) | 0.2 in | |
| June | 85°F (30°C) | 0.1 in | Driest |
| July | 99°F (37°C) | 1.0 in | Warmest |
| August | 89°F (32°C) | 1.3 in | Wettest |
| September | 85°F (29°C) | 0.9 in | |
| October | 74°F (23°C) | 0.9 in | |
| November | 61°F (16°C) | 0.9 in | |
| December | 54°F (12°C) | 1.2 in |
Mesa has a seasonal temperature swing of 49°F / from 50°F in January to 99°F in July. Total annual precipitation is 10.1 inches, with August being the wettest month (1.3") and June the driest (0.1").