Weather & Climate in Antonito, CO

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

Antonito has a cool climate with an average annual temperature of 40°F (5°C). Winters average 15°F in January while summers reach 62°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 7.9 inches (drier than the 38-inch national average). The area receives 32.2 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 7,890 feet.

Temperature

15°F Jan (-9°C) 62°F Jul (17°C)

Annual Average	40.4°F
	25% below US avg
January Average	15°F (-9°C)
July Average	62°F (17°C)
Sunny Days	330 days/yr

Geography

Elevation	7,890 ft (2,405 m)
Area	0.4 sq mi (1.0 km²)
Population Density	1,584/sq mi
Coordinates	37.0762°N, 106.0103°W
Timezone	America/Denver
County	Conejos County County
Nearest Airport	San Luis Valley Regional/Bergman Field (ALS) 26 miles away

Precipitation & Snow

Annual Rainfall 7.9"

79% below US avg

Snowfall 32.2"

Wettest Month (Aug) 2.17"

Driest Month (Jan) 0.63"

Air Quality

AQI Median	41.0
Rating	Good

Natural Hazard Risk

Overall Risk	Very Low
Risk Score	22.9 / 100
Social Vulnerability	83.8 / 100
Community Resilience	4.5 / 100

Hazard Breakdown

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

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

Earthquake History

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

Aug 23, 2011	6 km S of Valdez, Colorado	M5.3	116 km	4 km
Aug 10, 2005	20 km S of Weston, Colorado	M5.0	106 km	5 km
Aug 22, 2011	9 km SSW of Starkville, Colorado	M4.7	129 km	5 km
Sep 5, 2001	0 km SE of Cokedale, Colorado	M4.5	124 km	5 km
Jan 3, 2007	8 km SSW of Weston, Colorado	M4.4	99 km	5 km
Mar 22, 2004	30 km S of Weston, Colorado	M4.4	106 km	5 km
Aug 1, 2004	31 km S of Stonewall Gap, Colorado	M4.3	84 km	5 km
Mar 10, 2023	6 km NNE of Segundo, Colorado	M4.3	114 km	6 km
Jul 12, 2021	5 km E of Capulin, New Mexico	M4.2	115 km	13 km
Jun 19, 2023	Colorado	M4.1	138 km	6 km
Aug 10, 2005	20 km SSW of Segundo, Colorado	M4.1	106 km	5 km
Jul 29, 2009	32 km NNE of Cimarron, New Mexico	M4.1	109 km	5 km
Aug 23, 2011	7 km S of Valdez, Colorado	M4.0	117 km	5 km
Sep 4, 2001	2 km W of Cokedale, Colorado	M4.0	121 km	5 km
Feb 6, 2016	Colorado	M4.0	93 km	2 km
Sep 13, 2011	20 km S of Sequndo, Colorado	M4.0	114 km	5 km
Aug 26, 2023	19 km SSW of Weston, Colorado	M4.0	97 km	4 km
Sep 16, 2011	26 km S of Sequndo, Colorado	M3.9	115 km	5 km
Aug 23, 2016	18 km SSW of Weston, CO	M3.9	95 km	4 km
Mar 10, 2023	5 km N of Sequndo, Colorado	M3.9	114 km	4 km

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

Tornado History

37 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3.

Date	Rating	Distance	Path	Fatalities
Jul 31, 1955	EF3	65 km	0.5 mi	0
Jul 10, 1955	EF2	43 km	0.1 mi	0
Jun 17, 1953	EF2	8 km	1.0 mi	0
Sep 29, 2014	EF1	74 km	2.3 mi	0
Aug 16, 2008	EF1	66 km	0.3 mi	0
Mar 19, 1995	EF1	41 km	0.1 mi	0
May 25, 1993	EF1	98 km	1.0 mi	0
Jun 22, 1983	EF1	44 km	1.5 mi	0
Jun 19, 1982	EF1	47 km	2.0 mi	0
Jun 10, 1980	EF1	99 km	19.9 mi	0
May 5, 1980	EF1	33 km	2.0 mi	0
Jun 25, 1956	EF1	47 km	0.1 mi	0
May 31, 2021	EF0	17 km	3.5 mi	0
Sep 1, 2018	EF0	38 km	0.3 mi	0
Aug 9, 2018	EF0	89 km	2.3 mi	0
May 22, 2014	EF0	68 km	0.3 mi	0
May 20, 2013	EF0	67 km	0.1 mi	0
Sep 25, 2012	EF0	73 km	1.4 mi	0
Jul 13, 2009	EF0	51 km	0.1 mi	0
Jul 9, 2006	EF0	33 km	0.5 mi	0

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

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: SPRING CREEK (107,108 acres, 2018).

Year	Name	Acres Burned	Distance
2018	SPRING CREEK	107,108	93 km
2002	PONIL COMPLEX	89,084	96 km
2013	WEST FORK COMPLEX - EAST ZONE	34,441	96 km
2002	SPRING	24,044	92 km
2013	WEST FORK COMPLEX	18,775	96 km
1996	ARCHULETA	15,613	89 km
2006	MATO VEGA	13,126	88 km
1996	HONDO	8,258	61 km
2002	MILLION	7,923	82 km
2017	BONITA	7,754	57 km
2017	HONDITO	6,949	52 km
2021	HART CANYON RX FY22	5,781	92 km
2018	LOOP ROAD RX	5,688	83 km
2022	MIDNIGHT	5,293	73 km
2003	ENCEBADO	5,064	86 km
2010	MEDANO	4,887	95 km
2023	ALAMOSA RX UNIT 1 FY24	4,616	71 km
1998	BEARD	4,553	95 km
2010	H12	4,393	77 km
2021	RING RX FY21	4,172	87 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	15°F (-9°C)	0.6 in	Coldest, Driest
February	24°F (-4°C)	0.6 in
March	32°F (0°C)	0.9 in
April	39°F (4°C)	0.7 in
May	49°F (9°C)	0.9 in
June	58°F (14°C)	0.9 in
July	62°F (17°C)	1.7 in	Warmest
August	62°F (17°C)	2.2 in	Wettest
September	56°F (13°C)	1.5 in
October	46°F (8°C)	1.1 in
November	32°F (0°C)	0.9 in
December	22°F (-6°C)	0.8 in

Antonito has a seasonal temperature swing of 47°F / from 15°F in January to 62°F in July. Total annual precipitation is 12.7 inches, with August being the wettest month (2.2") and January the driest (0.6").

View full profile of Antonito, CO →