Weather & Climate in Brookside, CO

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

Brookside experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 34°F in January while summers reach 74°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 13.7 inches (drier than the 38-inch national average). The area receives 38.3 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 5,382 feet.

Temperature

34°F Jan (1°C) 74°F Jul (23°C)

Annual Average	52.1°F
	4% below US avg
January Average	34°F (1°C)
July Average	74°F (23°C)
Sunny Days	330 days/yr

Geography

Elevation	5,382 ft (1,640 m)
Area	0.5 sq mi (1.2 km²)
Population Density	560/sq mi
Coordinates	38.4135°N, 105.1909°W
Timezone	America/Denver
County	Fremont County County
Nearest Airport	San Luis Valley Regional/Bergman Field (ALS) 77 miles away

Precipitation & Snow

Annual Rainfall 13.7"

64% below US avg

Snowfall 38.3"

Wettest Month (Aug) 2.32"

Driest Month (Jan) 0.35"

Air Quality

AQI Median	41.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Low
Risk Score	68.6 / 100
Social Vulnerability	66.3 / 100
Community Resilience	40.7 / 100

Hazard Breakdown

Tornado	Relatively Low
Earthquake	Very Low
Wildfire	Relatively Moderate
Flood	Relatively Moderate
Hail	Relatively Moderate
Strong Wind	Relatively Low
Heat Wave	Relatively Low
Winter Weather	Relatively Moderate
Lightning	Relatively High
Ice Storm	Very Low
Drought	Relatively Low
Cold Wave	Very Low
Landslide	Relatively Moderate
Volcano	Very Low
Avalanche	Very Low

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

Earthquake History

109 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.5.

Sep 5, 2001	0 km SE of Cokedale, Colorado	M4.5	150 km	5 km
Mar 10, 2023	6 km NNE of Segundo, Colorado	M4.3	143 km	6 km
Jun 19, 2023	Colorado	M4.1	138 km	6 km
Feb 6, 2016	Colorado	M4.0	149 km	2 km
Sep 4, 2001	2 km W of Cokedale, Colorado	M4.0	149 km	5 km
Dec 25, 1994	9 km NE of Larkspur, Colorado	M4.0	103 km	10 km
Mar 10, 2023	5 km N of Sequndo, Colorado	M3.9	144 km	4 km
Aug 20, 2015	7 km WSW of Weston, Colorado	M3.9	148 km	1 km
Aug 1, 1996	17 km NE of Hoehne, Colorado	M3.8	140 km	5 km
Mar 19, 2023	4 km WNW of Hoehne, Colorado	M3.8	141 km	6 km
Feb 22, 2015	5 km E of Stonewall Gap, Colorado	M3.6	141 km	5 km
Sep 10, 2023	8 km NNW of Segundo, Colorado	M3.6	140 km	2 km
Jan 22, 2014	9 km NNW of Cokedale, Colorado	M3.6	140 km	4 km
Mar 10, 2023	8 km N of Segundo, Colorado	M3.5	140 km	3 km
Dec 23, 1995	7 km WNW of Rock Creek Park, Colorado	M3.5	43 km	5 km
Sep 1, 2019	16 km NNW of Weston, Colorado	M3.5	130 km	5 km
Feb 25, 2018	12 km NNE of Weston, Colorado	M3.5	135 km	5 km
Sep 21, 2001	0 km WSW of Valdez, Colorado	M3.4	150 km	5 km
Sep 11, 2023	7 km N of Valdez, Colorado	M3.4	142 km	7 km
Jun 19, 2023	7 km NNW of El Moro, Colorado	M3.4	140 km	6 km

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

Tornado History

140 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 17 injuries.

Date	Rating	Distance	Path	Fatalities
Jun 24, 1979	EF3	54 km	4.3 mi	0
Jun 13, 1977	EF3	59 km	4.9 mi	0
Jun 8, 2014	EF2	67 km	6.0 mi	0
May 28, 2001	EF2	84 km	0.5 mi	0
May 28, 2001	EF2	83 km	0.3 mi	0
Aug 21, 1984	EF2	55 km	1.0 mi	0
Jun 13, 1977	EF2	67 km	1.0 mi	0
Jun 13, 1977	EF2	81 km	1.0 mi	0
Apr 11, 1977	EF2	43 km	1.0 mi	0
Jul 4, 1960	EF2	49 km	0.1 mi	0
Aug 9, 2024	EF1	43 km	0.9 mi	0
Jul 20, 2023	EF1	57 km	1.5 mi	0
May 8, 2017	EF1	58 km	0.2 mi	0
Jul 21, 2015	EF1	95 km	0.3 mi	0
Jun 8, 2014	EF1	69 km	0.3 mi	0
Jun 8, 2014	EF1	79 km	0.3 mi	0
Aug 18, 2009	EF1	67 km	9.3 mi	0
Aug 23, 2008	EF1	78 km	0.6 mi	0
Aug 23, 2008	EF1	80 km	0.3 mi	0
Aug 23, 2008	EF1	60 km	1.0 mi	0

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

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: HAYMAN (129,417 acres, 2002).

Year	Name	Acres Burned	Distance
2002	HAYMAN	129,417	90 km
2018	SPRING CREEK	107,108	97 km
1986	UNNAMED	25,771	75 km
2012	WALDO CANYON	20,112	61 km
2016	IMPACT AREA	19,918	42 km
2016	JUNKINS	19,023	31 km
1998	UNNAMED	18,218	41 km
2016	HAYDEN PASS	17,977	52 km
2018	WESTON PASS	13,169	100 km
2006	MATO VEGA	13,126	89 km
2013	BLACK FOREST	11,885	82 km
2005	MASON	11,630	31 km
2019	DECKER	9,875	70 km
2008	TA-25	8,253	37 km
2024	RANGE 135	7,766	42 km
2001	MVD PSFRXASST 4	7,375	91 km
2002	MILNE/SQUIRREL	6,568	66 km
2016	BEULAH HILL	5,769	45 km
2018	APACHE COMPLEX	5,182	34 km
2009	QUARRY	5,141	45 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	34°F (1°C)	0.4 in	Driest
February	34°F (1°C)	0.4 in
March	39°F (4°C)	0.9 in
April	47°F (8°C)	1.2 in
May	55°F (13°C)	1.6 in
June	65°F (18°C)	1.3 in
July	74°F (23°C)	2.0 in	Warmest
August	68°F (20°C)	2.3 in	Wettest
September	60°F (16°C)	1.1 in
October	50°F (10°C)	0.9 in
November	38°F (4°C)	0.6 in
December	32°F (0°C)	0.5 in	Coldest

Brookside has a seasonal temperature swing of 42°F / from 32°F in December to 74°F in July. Total annual precipitation is 13.1 inches, with August being the wettest month (2.3") and January the driest (0.4").

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