Weather & Climate in Flagstaff, AZ

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

Flagstaff experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 31°F in January while summers reach 67°F in July. The area gets 326 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 20.5 inches (drier than the 38-inch national average). The area receives 90.1 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 45. The city sits at an elevation of 6,834 feet.

Temperature

31°F Jan (-1°C) 67°F Jul (19°C)

Annual Average	46.8°F
	13% below US avg
January Average	31°F (-1°C)
July Average	67°F (19°C)
Sunny Days	326 days/yr

Geography

Elevation	6,834 ft (2,083 m)
Area	66.0 sq mi (171.0 km²)
Population Density	1,156/sq mi
Coordinates	35.1852°N, 111.6207°W
Timezone	America/Phoenix
County	Coconino County County
Nearest Airport	Winslow-Lindbergh Regional (INW) 52 miles away

Precipitation & Snow

Annual Rainfall 20.5"

46% below US avg

Snowfall 90.1"

Wettest Month (Aug) 2.83"

Driest Month (Jun) 0.43"

Air Quality

AQI Median	45.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Moderate
Risk Score	94.2 / 100
Social Vulnerability	58.7 / 100
Community Resilience	46.2 / 100

Hazard Breakdown

Tornado	Very Low
Hurricane	No Rating
Earthquake	Relatively Moderate
Wildfire	Relatively High
Flood	Relatively High
Hail	Relatively Low
Strong Wind	Very Low
Heat Wave	Relatively Low
Winter Weather	Very High
Lightning	Very High
Ice Storm	Relatively Low
Drought	Very Low
Cold Wave	Relatively Moderate
Landslide	Relatively Moderate
Volcano	Relatively Low
Avalanche	Relatively Moderate

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

96 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	65 km	10 km
Mar 2, 2005	40 km SSW of Winslow West, Arizona	M5.1	79 km	5 km
Apr 25, 1993	3 km SSW of Valle, Arizona	M5.0	68 km	10 km
Jan 30, 2005	41 km NNE of Washington Park, Arizona	M4.0	68 km	5 km
Jul 5, 1992	Arizona	M4.0	104 km	5 km
Jan 6, 1998	15 km WSW of Joseph City, Arizona	M3.9	107 km	5 km
Jan 28, 2005	40 km NE of Washington Park, Arizona	M3.8	78 km	5 km
May 7, 1993	4 km SW of Valle, Arizona	M3.8	70 km	10 km
Jul 23, 2023	2 km E of Chino Valley, Arizona	M3.8	88 km	5 km
Mar 18, 2011	7 km NNW of Clarkdale, Arizona	M3.8	58 km	5 km
Mar 31, 1997	18 km SE of Valle, Arizona	M3.7	51 km	5 km
Mar 14, 1992	12 km WSW of Grand Canyon Village, Arizona	M3.7	108 km	5 km
Apr 17, 1995	8 km W of Tusayan, Arizona	M3.7	102 km	5 km
Mar 14, 1992	20 km WSW of Grand Canyon Village, Arizona	M3.7	109 km	5 km
Feb 8, 2005	37 km NE of Washington Park, Arizona	M3.6	78 km	5 km
Apr 29, 1993	4 km S of Valle, Arizona	M3.6	67 km	10 km
Jan 23, 2011	7 km NNW of Clarkdale, Arizona	M3.6	58 km	5 km
Feb 4, 1993	8 km W of Tusayan, Arizona	M3.6	102 km	5 km
Oct 25, 2011	4 km WSW of Paulden, Arizona	M3.5	89 km	5 km
Jun 21, 1993	14 km WSW of Grand Canyon Village, Arizona	M3.5	108 km	5 km

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

Tornado History

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

Date	Rating	Distance	Path	Fatalities
Aug 10, 1972	EF3	91 km	0.1 mi	0
Sep 14, 2011	EF2	18 km	0.5 mi	0
Oct 6, 2010	EF2	36 km	18.6 mi	0
Oct 6, 2010	EF2	33 km	2.8 mi	0
Oct 6, 2010	EF2	31 km	32.0 mi	0
Oct 6, 2010	EF2	32 km	34.1 mi	0
May 16, 1993	EF2	94 km	0.3 mi	0
Oct 24, 1992	EF2	28 km	5.5 mi	0
Oct 3, 2022	EF1	57 km	0.7 mi	0
Jul 10, 2021	EF1	71 km	1.3 mi	0
Oct 6, 2010	EF1	84 km	14.1 mi	0
Oct 14, 2006	EF1	23 km	9.3 mi	0
Sep 13, 1996	EF1	91 km	4.0 mi	0
Nov 2, 1959	EF1	96 km	0.1 mi	0
May 13, 2024	EF0	51 km	0.1 mi	0
Sep 9, 2023	EF0	90 km	0.1 mi	0
Aug 8, 2023	EF0	95 km	5.0 mi	0
Jul 17, 2023	EF0	94 km	5.5 mi	0
Jun 25, 2022	EF0	78 km	0.1 mi	0
Jun 23, 2022	EF0	32 km	0.1 mi	0

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

Nearby Volcanoes

2 volcanoes within 200 km. Closest: San Francisco Volcanic Field (19 km).

Name	Type	Elevation	Last Eruption	Distance
San Francisco Volcanic Field	Pyroclastic cone	3,850 m (12,631 ft)	1075	19 km
Uinkaret Field	Volcanic field	1,555 m (5,102 ft)	1100	190 km

Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: RAFAEL (75,741 acres, 2021).

Year	Name	Acres Burned	Distance
2021	RAFAEL	75,741	39 km
2021	BACKBONE	41,168	88 km
2016	JACK	35,926	60 km
2022	PIPELINE	26,437	20 km
1990	DUDE	25,080	98 km
2015	CAMILLO	24,654	45 km
2014	SLIDE	22,698	26 km
2017	BOUNDARY	17,814	34 km
1996	HOCKDERFFER	17,755	29 km
2022	TUNNEL	17,659	24 km
2004	JACKET	17,453	29 km
2019	COLDWATER	16,825	83 km
2000	PUMPKIN	16,086	33 km
2018	TINDER	16,083	81 km
2024	WEST	14,978	90 km
2017	SNAKE RIDGE	14,129	64 km
2009	WILDHORSE COMPLEX	14,007	41 km
2010	SCHULTZ	13,957	16 km
2021	SLATE	11,540	40 km
2023	STILL	10,626	77 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	31°F (-1°C)	2.0 in
February	32°F (-0°C)	2.1 in
March	36°F (2°C)	2.3 in
April	42°F (6°C)	1.1 in
May	50°F (10°C)	0.8 in
June	59°F (15°C)	0.4 in	Driest
July	67°F (19°C)	2.6 in	Warmest
August	64°F (18°C)	2.8 in	Wettest
September	57°F (14°C)	1.9 in
October	47°F (8°C)	1.5 in
November	37°F (3°C)	1.6 in
December	29°F (-1°C)	1.5 in	Coldest

Flagstaff has a seasonal temperature swing of 37°F / from 29°F in December to 67°F in July. Total annual precipitation is 20.6 inches, with August being the wettest month (2.8") and June the driest (0.4").

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