Bonanza, CO

Full City Profile · Colorado · Saguache County County

5.0 /5.0
A+ Excellent
12 Population 27/sq mi density
44°F Avg Temperature
A+
Overall
5.0 / 5.0
Strong
A+
Education
5.0 / 5.0
0.0% bachelor's degree or higher
Bonanza has a cool climate with an average annual temperature of 44°F (7°C). Winters average 21°F in January while summers reach 65°F in July. Annual precipitation totals 8.4 inches. The area receives 105.3 inches of snow annually.

Temperature

21°F Jan (-6°C) 65°F Jul (18°C)
Annual Average43.9°F
19% below US avg
January Average21°F (-6°C)
July Average65°F (18°C)

Geography

Elevation9,525 ft (2,903 m)
Area0.4 sq mi (1.1 km²)
Population Density27/sq mi
Coordinates38.2966°N, 106.1419°W
TimezoneAmerica/Denver
CountySaguache County County
Nearest AirportGunnison-Crested Butte Regional (GUC)
46 miles away

Precipitation & Snow

Annual Rainfall 8.4"
78% below US avg
Snowfall 105.3"
Wettest Month (Aug) 1.86"
Driest Month (Jan) 0.20"

Air Quality

Natural Hazard Risk

Overall RiskVery Low
Risk Score14.3 / 100
Social Vulnerability55.2 / 100
Community Resilience10.7 / 100

Hazard Breakdown

Tornado Very Low
Earthquake Very Low
Wildfire Relatively Low
Flood Very Low
Hail Very Low
Strong Wind Very Low
Heat Wave Very Low
Winter Weather Very Low
Lightning Relatively Moderate
Ice Storm Very Low
Drought Relatively Moderate
Cold Wave Relatively Low
Landslide Relatively Moderate
Volcano Very Low
Avalanche Relatively Moderate
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

37 earthquakes (M2.5+) within 150 km since 1990. Strongest: M3.5. Most recent: M2.5 on Jun 26, 2021.

Dec 23, 1995 7 km WNW of Rock Creek Park, Colorado M3.5 117 km
Feb 28, 2019 22 km NNW of Blanca, Colorado M3.4 89 km
May 10, 1991 24 km SSE of South Fork, Colorado M3.4 101 km
Jan 18, 1997 8 km SE of Westcreek, Colorado M3.3 127 km
Feb 28, 2019 22 km N of Blanca, Colorado M3.3 92 km
Jan 26, 2008 12 km NE of Cotopaxi, Colorado M3.1 52 km
Jul 22, 2001 6 km WNW of Woodland Park, Colorado M3.1 119 km
Jul 8, 1993 9 km ENE of Aspen, Colorado M3.1 115 km
Jan 1, 2003 6 km SE of Aspen, Colorado M2.9 109 km
Feb 26, 2008 29 km WNW of Westcreek, Colorado M2.9 123 km
Feb 11, 2006 13 km NE of Costilla, New Mexico M2.9 149 km
May 2, 2013 2 km E of Loghill Village, Colorado M2.9 141 km
Aug 24, 2016 16 km ENE of Beulah Valley, Colorado M2.9 118 km
Jun 18, 2002 39 km SW of Creede, Colorado M2.9 124 km
Dec 5, 2000 10 km NNW of Redstone, Colorado M2.9 147 km
Jan 19, 1997 8 km SE of Westcreek, Colorado M2.9 127 km
Jul 24, 2019 24 km N of Blanca, Colorado M2.8 91 km
Oct 13, 2002 13 km S of Norrie, Colorado M2.8 110 km
Apr 11, 2021 9 km E of Woody Creek, Colorado M2.8 123 km
Jan 20, 2017 Colorado M2.8 131 km
Source: USGS (M2.5+, 1990-2025)

Tornado History

46 tornadoes (EF0+) within 100 km since 1950. Strongest: EF2.

Date Rating Distance Fatalities
Jun 8, 2014 EF2 97 km 0
Oct 10, 1997 EF2 97 km 0
Jul 4, 1960 EF2 66 km 0
Jul 10, 1955 EF2 97 km 0
Aug 18, 2009 EF1 92 km 0
Aug 23, 2008 EF1 88 km 0
Aug 16, 2008 EF1 82 km 0
Mar 19, 1995 EF1 99 km 0
Jun 16, 1991 EF1 20 km 0
Jul 13, 1989 EF1 99 km 0
Apr 21, 1988 EF1 99 km 0
Jul 22, 1985 EF1 81 km 0
Jun 22, 1983 EF1 93 km 0
Jun 19, 1982 EF1 89 km 0
Jun 10, 1980 EF1 46 km 0
Jun 25, 1956 EF1 94 km 0
Feb 13, 1954 EF1 62 km 0
Jun 30, 2023 EF0 89 km 0
May 30, 2021 EF0 89 km 0
Jul 22, 2019 EF0 61 km 0
Source: NOAA SPC (EF0+, 1950-2024)

Wildfire History

20 wildfires (100+ acres) within 100 km. Largest: WEST FORK COMPLEX - EAST ZONE (34,441 ac, 2013).

Year Name Acres Distance
2013 WEST FORK COMPLEX - EAST ZONE 34,441 96 km
2016 JUNKINS 19,023 90 km
2016 HAYDEN PASS 17,977 33 km
2018 WESTON PASS 13,169 82 km
2005 MASON 11,630 98 km
2019 DECKER 9,875 21 km
2002 MILLION 7,923 84 km
2010 MEDANO 4,887 80 km
2011 DUCKETT 4,705 42 km
2002 IRON MOUNTAIN 3,955 59 km
2022 UNNAMED 3,643 91 km
2013 ROYAL GORGE 3,290 75 km
2000 PSFRXASST1 2,747 98 km
2012 WETMORE 2,293 95 km
1988 DINOSAUR 2,147 88 km
2000 SAND 1,911 84 km
2023 THREEMILE CREEK RX 1,863 44 km
2023 LOWLINE 1,855 93 km
2023 403 1,767 95 km
2012 SPRINGER 1,665 95 km
Source: NIFC/IRWIN (100+ acres)

Monthly Weather

Month Avg Temperature Precipitation Summary
January 21°F (-6°C) 0.2 in Coldest, Driest
February 26°F (-3°C) 0.3 in
March 36°F (2°C) 0.4 in
April 43°F (6°C) 0.7 in
May 52°F (11°C) 0.5 in
June 61°F (16°C) 0.6 in
July 65°F (18°C) 1.3 in Warmest
August 64°F (18°C) 1.9 in Wettest
September 57°F (14°C) 1.0 in
October 46°F (8°C) 0.7 in
November 34°F (1°C) 0.6 in
December 22°F (-6°C) 0.3 in

Bonanza has a seasonal temperature swing of 44°F / from 21°F in January to 65°F in July. Total annual precipitation is 8.4 inches, with August being the wettest month (1.9") and January the driest (0.2").

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