Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Black Rock experiences four distinct seasons with an average annual temperature of 51°F (11°C). Winters average 33°F in January while summers reach 72°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 11.2 inches (drier than the 38-inch national average). The area receives 10.0 inches of snow annually. Air quality is rated Good with a median AQI of 37. The city sits at an elevation of 6,439 feet.
Temperature
33°F Jan (0°C)72°F Jul (22°C)
Annual Average
51.3°F
5% below US avg
January Average
33°F (0°C)
July Average
72°F (22°C)
Sunny Days
330 days/yr
Geography
Elevation
6,439 ft (1,963 m)
Area
1.7 sq mi (4.5 km²)
Population Density
633/sq mi
Coordinates
35.0809°N, 108.7982°W
Timezone
America/Denver
County
McKinley County County
Nearest Airport
Show Low Regional (SOW) 89 miles away
Precipitation & Snow
Annual Rainfall11.2"
71% below US avg
Snowfall10.0"
Wettest Month (Aug)2.32"
Driest Month (Jun)0.47"
Air Quality
AQI Median
37.0
Rating
Good
Natural Hazard Risk
Overall Risk
Relatively Low
Risk Score
78.2 / 100
Social Vulnerability
99.8 / 100
Community Resilience
0.5 / 100
Hazard Breakdown
Tornado
Very Low
Hurricane
No Rating
Earthquake
Relatively Low
Wildfire
Relatively Low
Flood
Relatively Moderate
Hail
Very Low
Strong Wind
Very Low
Heat Wave
Relatively Low
Winter Weather
Relatively High
Lightning
Relatively High
Ice Storm
Very Low
Drought
No Rating
Cold Wave
Relatively Moderate
Landslide
Relatively Moderate
Volcano
Very Low
Avalanche
Very Low
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
15 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M3.8.
May 18, 2023
8 km ENE of San Mateo, New Mexico
M3.8
117 km
5 km
Oct 20, 2016
3 km NNW of Seboyeta, New Mexico
M3.5
128 km
5 km
Sep 23, 2009
29 km W of Alamo, New Mexico
M3.4
112 km
5 km
Mar 18, 2025
13 km NNE of Clay Springs, Arizona
M3.2
149 km
5 km
Sep 23, 2019
22 km NNW of Saint Johns, Arizona
M3.1
71 km
5 km
Jul 4, 2021
24 km SW of Lake Valley, New Mexico
M3.1
105 km
5 km
Jun 10, 2020
5 km WNW of Tsaile, Arizona
M2.8
145 km
14 km
Aug 10, 2019
5 km E of Bluewater Village, New Mexico
M2.8
81 km
5 km
Jul 17, 2009
17 km SSE of Eagle Nest, New Mexico
M2.8
146 km
5 km
Jan 30, 2023
18 km WSW of Pueblo Pintado, New Mexico
M2.7
126 km
5 km
May 14, 2011
27 km W of Alamo, New Mexico
M2.7
117 km
5 km
Sep 7, 2014
4 km WSW of Sun Valley, Arizona
M2.6
119 km
5 km
May 20, 2024
11 km WNW of Ramah, New Mexico
M2.6
18 km
11 km
May 8, 2025
44 km SSW of San Rafael, New Mexico
M2.6
81 km
8 km
Jun 23, 2006
5 km NNW of Seboyeta, New Mexico
M2.5
127 km
5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
9 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF0.
Date
Rating
Distance
Path
Fatalities
Jun 17, 2021
EF0
35 km
0.1 mi
0
May 30, 2019
EF0
100 km
0.4 mi
0
May 22, 2009
EF0
89 km
1.0 mi
0
Jul 25, 2005
EF0
69 km
1.0 mi
0
Jul 16, 2005
EF0
100 km
1.0 mi
0
Jul 16, 2005
EF0
83 km
1.0 mi
0
Jun 23, 2005
EF0
100 km
1.0 mi
0
Sep 9, 2003
EF0
74 km
1.0 mi
0
Oct 27, 1974
EF0
95 km
0.2 mi
0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Nearby Volcanoes
2 volcanoes within 200 km.
Closest: Zuni-Bandera (79 km).
Name
Type
Elevation
Last Eruption
Distance
Zuni-Bandera
Volcanic field
2,550 m (8,366 ft)
-1170
79 km
Red Hill
Volcanic field
2,300 m (7,546 ft)
-9450
92 km
Source: Smithsonian Institution Global Volcanism Program (GVP).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km.
Largest: CHERRY (15,105 acres, 2002).
Year
Name
Acres Burned
Distance
2002
CHERRY
15,105
71 km
2018
DIENER CANYON
9,824
64 km
2004
SEDGWICK
9,241
66 km
2005
LITTLE WATER1
4,342
100 km
2018
BLUE WATER
3,663
67 km
1989
COLLAPSE
3,438
76 km
2009
SAWMILL ROAD RX
3,411
92 km
2019
REDONDO RX
3,382
56 km
2007
OAK RIDGE 3
2,959
75 km
1996
ALLENTOWN5
2,653
39 km
2014
2 MA HIGHWAY RX LP6
2,481
89 km
1989
MALPAIS
2,300
71 km
2004
BROADCAST BLOCK 1
2,285
59 km
2006
KINLICHEE CANYON 1
2,283
82 km
1996
HDSCRABBLE
2,217
58 km
2018
UNNAMED
1,983
60 km
2005
KINLICHEE
1,949
80 km
1989
HOYA
1,869
64 km
2023
COPPERTAN RX 23 BLOCK 1 AND 2
1,850
57 km
2000
WALL
1,751
78 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
33°F (0°C)
0.8 in
February
34°F (1°C)
0.8 in
March
40°F (4°C)
1.0 in
April
46°F (8°C)
0.7 in
May
55°F (13°C)
0.5 in
June
64°F (18°C)
0.5 in
Driest
July
72°F (22°C)
2.0 in
Warmest
August
68°F (20°C)
2.3 in
Wettest
September
61°F (16°C)
1.4 in
October
50°F (10°C)
1.2 in
November
39°F (4°C)
0.9 in
December
31°F (-0°C)
0.9 in
Coldest
Black Rock has a seasonal temperature swing of 41°F / from 31°F in December to 72°F in July. Total annual precipitation is 13.0 inches, with August being the wettest month (2.3") and June the driest (0.5").