Weather & Climate in Williamsburg, CO

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

Williamsburg 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 5,783 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	5,783 ft (1,763 m)
Area	3.6 sq mi (9.2 km²)
Population Density	273/sq mi
Coordinates	38.3840°N, 105.1710°W
Timezone	America/Denver
County	Fremont County County
Nearest Airport	San Luis Valley Regional/Bergman Field (ALS) 76 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

149 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	146 km	5 km
Jan 3, 2007	8 km SSW of Weston, Colorado	M4.4	148 km	5 km
Mar 10, 2023	6 km NNE of Segundo, Colorado	M4.3	140 km	6 km
Jun 19, 2023	Colorado	M4.1	134 km	6 km
Dec 25, 1994	9 km NE of Larkspur, Colorado	M4.0	106 km	10 km
Feb 6, 2016	Colorado	M4.0	146 km	2 km
Sep 4, 2001	2 km W of Cokedale, Colorado	M4.0	145 km	5 km
Aug 20, 2015	7 km WSW of Weston, Colorado	M3.9	144 km	1 km
Mar 10, 2023	5 km N of Sequndo, Colorado	M3.9	141 km	4 km
Mar 19, 2023	4 km WNW of Hoehne, Colorado	M3.8	138 km	6 km
Aug 1, 1996	17 km NE of Hoehne, Colorado	M3.8	136 km	5 km
May 11, 2011	4 km SE of Valdez, Colorado	M3.8	150 km	5 km
Sep 5, 2001	3 km SSE of Cokedale, Colorado	M3.7	150 km	5 km
Jan 22, 2014	9 km NNW of Cokedale, Colorado	M3.6	137 km	4 km
Sep 10, 2023	8 km NNW of Segundo, Colorado	M3.6	136 km	2 km
Feb 22, 2015	5 km E of Stonewall Gap, Colorado	M3.6	138 km	5 km
Sep 6, 2001	3 km S of Cokedale, Colorado	M3.6	150 km	5 km
Feb 22, 2015	12 km SW of Weston, Colorado	M3.6	150 km	5 km
Mar 10, 2023	8 km N of Segundo, Colorado	M3.5	136 km	3 km
Sep 1, 2019	16 km NNW of Weston, Colorado	M3.5	126 km	5 km

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

Tornado History

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

Date	Rating	Distance	Path	Fatalities
Jun 24, 1979	EF3	56 km	4.3 mi	0
Jun 13, 1977	EF3	62 km	4.9 mi	0
Jun 8, 2014	EF2	70 km	6.0 mi	0
May 28, 2001	EF2	83 km	0.3 mi	0
May 28, 2001	EF2	84 km	0.5 mi	0
Aug 21, 1984	EF2	52 km	1.0 mi	0
Jun 13, 1977	EF2	70 km	1.0 mi	0
Jun 13, 1977	EF2	83 km	1.0 mi	0
Apr 11, 1977	EF2	44 km	1.0 mi	0
Jul 4, 1960	EF2	47 km	0.1 mi	0
Aug 9, 2024	EF1	46 km	0.9 mi	0
Jul 20, 2023	EF1	60 km	1.5 mi	0
May 8, 2017	EF1	55 km	0.2 mi	0
Jul 21, 2015	EF1	99 km	0.3 mi	0
Jun 8, 2014	EF1	72 km	0.3 mi	0
Jun 8, 2014	EF1	82 km	0.3 mi	0
Aug 18, 2009	EF1	71 km	9.3 mi	0
Aug 23, 2008	EF1	81 km	0.6 mi	0
Aug 23, 2008	EF1	63 km	1.0 mi	0
Aug 23, 2008	EF1	83 km	0.3 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	94 km
2018	SPRING CREEK	107,108	94 km
1986	UNNAMED	25,771	74 km
2012	WALDO CANYON	20,112	64 km
2016	IMPACT AREA	19,918	42 km
2016	JUNKINS	19,023	27 km
1998	UNNAMED	18,218	42 km
2016	HAYDEN PASS	17,977	53 km
2006	MATO VEGA	13,126	86 km
2013	BLACK FOREST	11,885	84 km
2005	MASON	11,630	28 km
2019	DECKER	9,875	72 km
2008	TA-25	8,253	37 km
2024	RANGE 135	7,766	42 km
2001	MVD PSFRXASST 4	7,375	94 km
2002	MILNE/SQUIRREL	6,568	67 km
2016	BEULAH HILL	5,769	41 km
2018	APACHE COMPLEX	5,182	33 km
2009	QUARRY	5,141	46 km
2017	MILNE	5,113	73 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

Williamsburg 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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