Weather & Climate in Frederick, CO

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

Frederick experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 31°F in January while summers reach 76°F in July. The area gets 316 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 14.7 inches (drier than the 38-inch national average). The area receives 34.9 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 4,949 feet.

Temperature

31°F Jan (-1°C) 76°F Jul (24°C)

Annual Average	52.1°F
	4% below US avg
January Average	31°F (-1°C)
July Average	76°F (24°C)
Sunny Days	316 days/yr

Geography

Elevation	4,949 ft (1,508 m)
Area	13.6 sq mi (35.1 km²)
Population Density	1,045/sq mi
Coordinates	40.1059°N, 104.9745°W
Timezone	America/Denver
County	Weld County County
Nearest Airport	Denver International (DEN) 23 miles away

Precipitation & Snow

Annual Rainfall 14.7"

61% below US avg

Snowfall 34.9"

Wettest Month (May) 2.56"

Driest Month (Jan) 0.47"

Air Quality

AQI Median	41.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Moderate
Risk Score	89.2 / 100
Social Vulnerability	11.4 / 100
Community Resilience	56.2 / 100

Hazard Breakdown

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

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

Earthquake History

14 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.0.

Dec 25, 1994	9 km NE of Larkspur, Colorado	M4.0	92 km	10 km
Jan 18, 1997	8 km SE of Westcreek, Colorado	M3.3	112 km	5 km
Jun 1, 2014	9 km NNW of Kersey, Colorado	M3.2	51 km	1 km
Jul 22, 2001	6 km WNW of Woodland Park, Colorado	M3.1	121 km	5 km
Sep 12, 1990	13 km NW of Silverthorne, Colorado	M3.0	114 km	5 km
Feb 26, 2008	29 km WNW of Westcreek, Colorado	M2.9	102 km	2 km
Jan 19, 1997	8 km SE of Westcreek, Colorado	M2.9	112 km	5 km
Mar 30, 2019	7 km NE of Greeley, Colorado	M2.9	49 km	6 km
Jun 21, 2018	16 km SSW of Walden, Colorado	M2.7	130 km	2 km
Jan 19, 1997	8 km SE of Westcreek, Colorado	M2.7	112 km	5 km
Apr 18, 1998	8 km SE of Westcreek, Colorado	M2.7	112 km	5 km
Jun 13, 2025	7 km SE of Erie, Colorado	M2.7	11 km	9 km
Aug 23, 2016	2 km SSE of Eaton, Colorado	M2.6	50 km	10 km
Jun 23, 2014	6 km NNE of Kersey, Colorado	M2.5	53 km	5 km

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

Tornado History

721 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 1 fatality, 159 injuries.

Date	Rating	Distance	Path	Fatalities
Jun 4, 2015	EF3	18 km	6.7 mi	0
May 22, 2008	EF3	24 km	38.7 mi	1
Jun 15, 1988	EF3	42 km	2.5 mi	0
Jun 12, 1982	EF3	50 km	3.0 mi	0
May 18, 1975	EF3	40 km	4.1 mi	0
May 15, 1952	EF3	42 km	7.4 mi	0
Jun 7, 2021	EF2	7 km	7.5 mi	0
May 7, 2016	EF2	70 km	8.8 mi	0
Jul 31, 1996	EF2	54 km	5.0 mi	0
Jul 30, 1996	EF2	90 km	0.5 mi	0
Jul 13, 1996	EF2	60 km	12.0 mi	0
May 30, 1996	EF2	95 km	1.0 mi	0
Jun 9, 1990	EF2	68 km	23.0 mi	0
Jun 15, 1988	EF2	42 km	0.5 mi	0
Jun 5, 1988	EF2	12 km	2.0 mi	0
Jun 5, 1988	EF2	19 km	0.5 mi	0
Jul 7, 1987	EF2	61 km	5.0 mi	0
Jul 2, 1987	EF2	33 km	1.0 mi	0
Jun 20, 1987	EF2	48 km	1.0 mi	0
Jun 8, 1986	EF2	43 km	1.1 mi	0

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

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: CAMERON PEAK (208,910 acres, 2020).

Year	Name	Acres Burned	Distance
2020	CAMERON PEAK	208,910	75 km
2020	EAST TROUBLESOME	188,924	88 km
2012	HIGH PARK	90,769	69 km
2020	WILLIAMS FORK	14,679	91 km
1996	BUFFALO CREEK	11,690	85 km
2000	BOBCAT	10,444	49 km
2020	CALWOOD	9,836	30 km
2000	HIGH MEADOWS	9,607	85 km
2004	PICNIC ROCK	9,014	71 km
2001	MVD PSFRXASST 4	7,375	99 km
2021	MARSHALL	6,286	24 km
2010	FOURMILE CANYON	5,865	36 km
2002	BIG ELK	4,348	43 km
2021	BIJOU	3,485	85 km
2012	LOWER NORTH FORK FIRE	3,436	75 km
2003	OVERLAND	3,232	32 km
2009	OLD STAGE	3,160	26 km
2011	CRYSTAL FIRE	2,855	58 km
2002	SCHOONOVER	2,821	99 km
2012	FERN LAKE	2,549	65 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	31°F (-1°C)	0.5 in	Driest
February	33°F (1°C)	0.5 in
March	40°F (5°C)	1.5 in
April	48°F (9°C)	2.0 in
May	57°F (14°C)	2.6 in	Wettest
June	67°F (20°C)	1.9 in
July	76°F (24°C)	1.8 in	Warmest
August	71°F (22°C)	1.5 in
September	62°F (17°C)	1.4 in
October	50°F (10°C)	1.0 in
November	37°F (3°C)	1.0 in
December	29°F (-2°C)	0.6 in	Coldest

Frederick has a seasonal temperature swing of 46°F / from 29°F in December to 76°F in July. Total annual precipitation is 16.1 inches, with May being the wettest month (2.6") and January the driest (0.5").

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