Sign In Register

Weather & Climate in Fountain Hills, AZ

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Fountain Hills has a warm climate with an average annual temperature of 72°F (22°C). Winters average 54°F in January while summers reach 92°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 1,817 feet.

Temperature

54°F Jan (12°C) 92°F Jul (33°C)
Annual Average72.1°F
34% above US avg
January Average54°F (12°C)
July Average92°F (33°C)
Sunny Days330 days/yr

Geography

Elevation1,817 ft (554 m)
Area20.3 sq mi (52.5 km²)
Population Density1,172/sq mi
Coordinates33.6078°N, 111.7384°W
TimezoneAmerica/Phoenix
CountyMaricopa County County
Nearest AirportPhoenix Sky Harbor International (PHX)
20 miles away

Precipitation & Snow

Annual Rainfall 10.2"
73% below US avg
Snowfall 0.0"
Wettest Month (Mar) 1.54"
Driest Month (Jun) 0.16"

Air Quality

AQI Median45.0
RatingGood

Natural Hazard Risk

Overall RiskVery High
Risk Score99.9 / 100
Social Vulnerability27.1 / 100
Community Resilience18.0 / 100

Hazard Breakdown

Tornado Relatively Moderate
Hurricane Very Low
Earthquake Relatively Moderate
Wildfire Relatively High
Flood Very High
Hail Very High
Strong Wind Very High
Heat Wave Very High
Winter Weather Relatively Low
Lightning Relatively High
Drought Relatively High
Cold Wave No Rating
Landslide Relatively Low
Avalanche Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

27 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.1.

Mar 2, 2005 40 km SSW of Winslow West, Arizona M5.1 142 km 5 km
Jan 30, 2005 41 km NNE of Washington Park, Arizona M4.0 142 km 5 km
Jul 23, 2023 2 km E of Chino Valley, Arizona M3.8 143 km 5 km
Mar 18, 2011 7 km NNW of Clarkdale, Arizona M3.8 141 km 5 km
Jan 28, 2005 40 km NE of Washington Park, Arizona M3.8 140 km 5 km
Feb 8, 2005 37 km NE of Washington Park, Arizona M3.6 138 km 5 km
Jan 23, 2011 7 km NNW of Clarkdale, Arizona M3.6 140 km 5 km
Nov 13, 1991 5 km NW of Prescott Valley, Arizona M3.5 129 km 5 km
Jul 1, 2005 23 km NE of Washington Park, Arizona M3.4 124 km 5 km
Jul 1, 2005 37 km NE of Washington Park, Arizona M3.2 137 km 5 km
Jun 25, 2010 8 km SW of Roosevelt, Arizona M3.1 50 km 5 km
May 5, 2015 6 km W of Munds Park, Arizona M3.1 150 km 7 km
May 9, 2009 11 km SSW of Cordes Lakes, Arizona M3.1 77 km 5 km
Feb 19, 2025 0 km SW of Christopher Creek, Arizona M3.0 103 km 11 km
Feb 8, 2005 41 km NE of Washington Park, Arizona M2.9 141 km 5 km
Sep 9, 2014 6 km SE of Roosevelt, Arizona M2.9 60 km 3 km
Aug 30, 2014 8 km W of Rock House, Arizona M2.9 65 km 3 km
Sep 26, 2010 3 km NNW of Roosevelt, Arizona M2.8 56 km 5 km
Apr 21, 2005 36 km SSW of Winslow West, Arizona M2.8 147 km 5 km
Jul 4, 2021 28 km NE of Washington Park, Arizona M2.8 129 km 5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

88 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 77 injuries.

Date Rating Distance Path Fatalities
Jan 17, 1993 EF2 15 km 2.1 mi 0
Jun 21, 1972 EF2 29 km 13.5 mi 0
Sep 14, 1971 EF2 52 km 0.1 mi 0
Aug 30, 1971 EF2 31 km 4.7 mi 0
Oct 3, 1968 EF2 63 km 0.1 mi 0
Jul 4, 1968 EF2 23 km 0.1 mi 0
Nov 19, 2023 EF1 84 km 2.4 mi 0
Jul 14, 1996 EF1 98 km 0.1 mi 0
Feb 13, 1995 EF1 29 km 0.5 mi 0
Jan 18, 1993 EF1 54 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 91 km 0.5 mi 0
Nov 18, 1986 EF1 27 km 0.5 mi 0
Mar 15, 1985 EF1 74 km 0.1 mi 0
Aug 9, 1984 EF1 34 km 0.5 mi 0
Jul 22, 1984 EF1 65 km 1.0 mi 0
Aug 16, 1983 EF1 34 km 0.3 mi 0
Aug 8, 1983 EF1 48 km 0.2 mi 0
Sep 5, 1981 EF1 54 km 1.0 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Nearby Volcanoes

1 volcano within 200 km. Closest: San Francisco Volcanic Field (194 km).

Name Type Elevation Last Eruption Distance
San Francisco Volcanic Field Pyroclastic cone 3,850 m (12,631 ft) 1075 194 km
Source: Smithsonian Institution Global Volcanism Program (GVP).

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 72 km
2020 BUSH 212,542 41 km
2021 TELEGRAPH 187,248 84 km
2019 WOODBURY 130,242 53 km
2004 WILLOW 118,494 60 km
2005 EDGE COMPLEX 69,291 37 km
1996 LONE 60,574 40 km
2021 BACKBONE 41,168 88 km
2017 BROOKLYN 39,780 68 km
2016 JUNIPER 32,293 80 km
2024 SAND STONE 26,470 24 km
2020 SAWTOOTH 23,174 47 km
2024 SKELETON 22,753 68 km
1995 RIO 22,666 10 km
2020 SALT 21,885 76 km
1995 BASIN 21,533 43 km
2012 SUNFLOWER 17,687 46 km
2021 TIGER 16,380 76 km
2012 GLADIATOR 16,096 92 km
2005 THREE FIRE COMPLEX (THREE) 15,849 45 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 54°F (12°C) 1.3 in
February 56°F (14°C) 1.3 in
March 60°F (16°C) 1.5 in Wettest
April 67°F (19°C) 0.4 in
May 76°F (24°C) 0.2 in
June 85°F (29°C) 0.2 in Driest
July 92°F (33°C) 1.1 in Warmest
August 89°F (32°C) 1.5 in
September 84°F (29°C) 1.1 in
October 73°F (23°C) 1.0 in
November 61°F (16°C) 1.1 in
December 54°F (12°C) 1.5 in Coldest

Fountain Hills has a seasonal temperature swing of 38°F / from 54°F in December to 92°F in July. Total annual precipitation is 12.4 inches, with March being the wettest month (1.5") and June the driest (0.2").

View full profile of Fountain Hills, AZ →