Weather & Climate in Dewey-Humboldt, AZ

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

Dewey-Humboldt experiences four distinct seasons with an average annual temperature of 55°F (13°C). Winters average 38°F in January while summers reach 75°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 16.5 inches (drier than the 38-inch national average). The area receives 10.2 inches of snow annually. Air quality is rated Good with a median AQI of 45. The city sits at an elevation of 4,620 feet.

Temperature

38°F Jan (3°C) 75°F Jul (24°C)

Annual Average	55.4°F
	3% above US avg
January Average	38°F (3°C)
July Average	75°F (24°C)
Sunny Days	330 days/yr

Geography

Elevation	4,620 ft (1,408 m)
Area	18.6 sq mi (48.1 km²)
Population Density	236/sq mi
Coordinates	34.5174°N, 112.2497°W
Timezone	America/Phoenix
County	Yavapai County County
Nearest Airport	Prescott Regional - Ernest A Love Field (PRC) 14 miles away

Precipitation & Snow

Annual Rainfall 16.5"

57% below US avg

Snowfall 10.2"

Wettest Month (Aug) 3.19"

Driest Month (Jun) 0.35"

Air Quality

AQI Median	45.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Moderate
Risk Score	93.7 / 100
Social Vulnerability	73.0 / 100
Community Resilience	18.0 / 100

Hazard Breakdown

Tornado	Relatively Low
Hurricane	No Rating
Earthquake	Relatively Low
Wildfire	Relatively High
Flood	Relatively High
Hail	Relatively Moderate
Strong Wind	Relatively Low
Heat Wave	Relatively Moderate
Winter Weather	Relatively High
Lightning	Very 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

76 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.3.

Apr 29, 1993	5 km SSE of Valle, Arizona	M5.3	122 km	10 km
Mar 2, 2005	40 km SSW of Winslow West, Arizona	M5.1	119 km	5 km
Apr 25, 1993	3 km SSW of Valle, Arizona	M5.0	123 km	10 km
Jan 30, 2005	41 km NNE of Washington Park, Arizona	M4.0	111 km	5 km
Jan 28, 2005	40 km NE of Washington Park, Arizona	M3.8	117 km	5 km
Jul 23, 2023	2 km E of Chino Valley, Arizona	M3.8	32 km	5 km
May 7, 1993	4 km SW of Valle, Arizona	M3.8	123 km	10 km
Mar 18, 2011	7 km NNW of Clarkdale, Arizona	M3.8	38 km	5 km
Mar 31, 1997	18 km SE of Valle, Arizona	M3.7	115 km	5 km
Apr 29, 1993	4 km S of Valle, Arizona	M3.6	123 km	10 km
Feb 8, 2005	37 km NE of Washington Park, Arizona	M3.6	115 km	5 km
Jan 23, 2011	7 km NNW of Clarkdale, Arizona	M3.6	38 km	5 km
Oct 25, 2011	4 km WSW of Paulden, Arizona	M3.5	46 km	5 km
Nov 13, 1991	5 km NW of Prescott Valley, Arizona	M3.5	17 km	5 km
Oct 9, 2016	30 km ENE of Peach Springs, Arizona	M3.4	146 km	9 km
May 10, 2023	33 km SW of Cameron, Arizona	M3.4	137 km	7 km
Apr 7, 1992	20 km ESE of Peach Springs, Arizona	M3.4	136 km	5 km
Jul 1, 2005	23 km NE of Washington Park, Arizona	M3.4	106 km	5 km
Apr 29, 1993	7 km S of Valle, Arizona	M3.3	119 km	10 km
Apr 1, 1994	22 km WNW of Paulden, Arizona	M3.3	63 km	5 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

51 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 7 injuries.

Date	Rating	Distance	Path	Fatalities
Aug 10, 1972	EF3	33 km	0.1 mi	0
Oct 6, 2010	EF2	62 km	2.8 mi	0
Oct 6, 2010	EF2	63 km	32.0 mi	0
Oct 6, 2010	EF2	63 km	34.1 mi	0
Oct 6, 2010	EF2	60 km	18.6 mi	0
May 16, 1993	EF2	31 km	0.3 mi	0
Nov 19, 2023	EF1	95 km	2.4 mi	0
Oct 3, 2022	EF1	94 km	0.7 mi	0
Jul 10, 2021	EF1	86 km	1.3 mi	0
Oct 6, 2010	EF1	88 km	14.1 mi	0
Oct 14, 2006	EF1	72 km	9.3 mi	0
Sep 13, 1996	EF1	30 km	4.0 mi	0
Aug 9, 1984	EF1	100 km	0.5 mi	0
Sep 5, 1981	EF1	94 km	1.0 mi	0
Jul 29, 1967	EF1	86 km	0.1 mi	0
Nov 2, 1959	EF1	17 km	0.1 mi	0
Sep 9, 2023	EF0	31 km	0.1 mi	0
Jul 17, 2023	EF0	17 km	5.5 mi	0
Jun 25, 2022	EF0	23 km	0.1 mi	0
Jul 11, 2021	EF0	30 km	0.7 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Nearby Volcanoes

1 volcano within 200 km. Closest: San Francisco Volcanic Field (106 km).

Name	Type	Elevation	Last Eruption	Distance
San Francisco Volcanic Field	Pyroclastic cone	3,850 m (12,631 ft)	1075	106 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	46 km
2004	WILLOW	118,494	83 km
2021	RAFAEL	75,741	63 km
2021	BACKBONE	41,168	55 km
2017	BROOKLYN	39,780	44 km
1998	UNNAMED	38,814	43 km
2016	JACK	35,926	87 km
2017	GOODWIN	28,192	16 km
1990	DUDE	25,080	100 km
2015	CAMILLO	24,654	91 km
2024	SKELETON	22,753	44 km
2014	SLIDE	22,698	68 km
2005	SH RANCH COMPLEX	22,636	70 km
1995	BASIN	21,533	88 km
2012	SUNFLOWER	17,687	94 km
2019	SHERIDAN	17,411	64 km
2019	COLDWATER	16,825	84 km
2021	TIGER	16,380	40 km
2012	GLADIATOR	16,096	29 km
2024	WEST	14,978	80 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	38°F (3°C)	1.7 in	Coldest
February	43°F (6°C)	1.9 in
March	47°F (8°C)	2.1 in
April	53°F (12°C)	0.9 in
May	61°F (16°C)	0.6 in
June	71°F (21°C)	0.4 in	Driest
July	75°F (24°C)	2.8 in	Warmest
August	75°F (24°C)	3.2 in	Wettest
September	70°F (21°C)	1.9 in
October	60°F (16°C)	1.3 in
November	48°F (9°C)	1.5 in
December	41°F (5°C)	1.5 in

Dewey-Humboldt has a seasonal temperature swing of 37°F / from 38°F in January to 75°F in July. Total annual precipitation is 19.9 inches, with August being the wettest month (3.2") and June the driest (0.4").

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