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Weather & Climate in Arvada, CO

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

Arvada experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 25°F in January while summers reach 71°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 25.1 inches (drier than the 38-inch national average). The area receives 45.0 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 41. The city sits at an elevation of 5,509 feet.

Temperature

25°F Jan (-4°C) 71°F Jul (22°C)
Annual Average48.4°F
10% below US avg
January Average25°F (-4°C)
July Average71°F (22°C)
Sunny Days330 days/yr

Geography

Elevation5,509 ft (1,679 m)
Area35.8 sq mi (92.6 km²)
Population Density3,150/sq mi
Coordinates39.8337°N, 105.1503°W
TimezoneAmerica/Denver
CountyBroomfield County County
Nearest AirportDenver International (DEN)
25 miles away

Precipitation & Snow

Annual Rainfall 25.1"
34% below US avg
Snowfall 45.0"
Wettest Month (May) 2.72"
Driest Month (Jan) 0.59"

Air Quality

AQI Median41.0
RatingGood

Natural Hazard Risk

Overall RiskVery Low
Risk Score34.7 / 100
Social Vulnerability10.6 / 100
Community Resilience81.9 / 100

Hazard Breakdown

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

Earthquake History

19 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 67 km 10 km
Dec 23, 1995 7 km WNW of Rock Creek Park, Colorado M3.5 124 km 5 km
Jan 18, 1997 8 km SE of Westcreek, Colorado M3.3 82 km 5 km
Jun 1, 2014 9 km NNW of Kersey, Colorado M3.2 84 km 1 km
Jul 22, 2001 6 km WNW of Woodland Park, Colorado M3.1 90 km 5 km
Sep 12, 1990 13 km NW of Silverthorne, Colorado M3.0 91 km 5 km
Jan 19, 1997 8 km SE of Westcreek, Colorado M2.9 82 km 5 km
Mar 30, 2019 7 km NE of Greeley, Colorado M2.9 83 km 6 km
Feb 26, 2008 29 km WNW of Westcreek, Colorado M2.9 68 km 2 km
Dec 31, 1995 6 km WNW of Rock Creek Park, Colorado M2.8 126 km 5 km
Oct 13, 2002 13 km S of Norrie, Colorado M2.8 147 km 5 km
Jan 19, 1997 8 km SE of Westcreek, Colorado M2.7 82 km 5 km
Apr 18, 1998 8 km SE of Westcreek, Colorado M2.7 82 km 5 km
Jun 13, 2025 7 km SE of Erie, Colorado M2.7 24 km 9 km
Jun 21, 2018 16 km SSW of Walden, Colorado M2.7 134 km 2 km
Aug 23, 2016 2 km SSE of Eaton, Colorado M2.6 84 km 10 km
Jun 23, 2014 6 km NNE of Kersey, Colorado M2.5 85 km 5 km
Jun 26, 2021 19 km WNW of Cañon City, Colorado M2.5 148 km 8 km
Jan 11, 1995 15 km SSE of Norrie, Colorado M2.5 145 km 5 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Tornado History

673 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 1 fatality, 161 injuries.

Date Rating Distance Path Fatalities
Jun 4, 2015 EF3 47 km 6.7 mi 0
May 22, 2008 EF3 56 km 38.7 mi 1
Jun 15, 1988 EF3 22 km 2.5 mi 0
Jun 12, 1982 EF3 53 km 3.0 mi 0
May 18, 1975 EF3 36 km 4.1 mi 0
May 15, 1952 EF3 74 km 7.4 mi 0
Jun 7, 2021 EF2 40 km 7.5 mi 0
May 7, 2016 EF2 94 km 8.8 mi 0
Jun 8, 2014 EF2 98 km 6.0 mi 0
Jun 15, 2009 EF2 80 km 4.0 mi 0
Jul 31, 1996 EF2 87 km 5.0 mi 0
Jul 13, 1996 EF2 64 km 12.0 mi 0
Jun 9, 1990 EF2 100 km 23.0 mi 0
Jun 15, 1988 EF2 22 km 0.5 mi 0
Jun 5, 1988 EF2 15 km 0.5 mi 0
Jun 5, 1988 EF2 24 km 2.0 mi 0
Jul 7, 1987 EF2 92 km 5.0 mi 0
Jul 2, 1987 EF2 36 km 1.0 mi 0
Jun 20, 1987 EF2 46 km 1.0 mi 0
Jun 8, 1986 EF2 47 km 2.0 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 94 km
2020 EAST TROUBLESOME 188,924 85 km
2002 HAYMAN 129,417 69 km
2012 HIGH PARK 90,769 93 km
2020 WILLIAMS FORK 14,679 71 km
2013 BLACK FOREST 11,885 96 km
1996 BUFFALO CREEK 11,690 52 km
2000 BOBCAT 10,444 72 km
2020 CALWOOD 9,836 39 km
2000 HIGH MEADOWS 9,607 51 km
2004 PICNIC ROCK 9,014 99 km
2001 MVD PSFRXASST 4 7,375 67 km
2021 MARSHALL 6,286 14 km
2010 FOURMILE CANYON 5,865 31 km
2002 BIG ELK 4,348 55 km
2012 LOWER NORTH FORK FIRE 3,436 43 km
2003 OVERLAND 3,232 37 km
2009 OLD STAGE 3,160 31 km
2011 CRYSTAL FIRE 2,855 82 km
2002 SCHOONOVER 2,821 67 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 25°F (-4°C) 0.6 in Coldest, Driest
February 35°F (1°C) 0.6 in
March 40°F (5°C) 1.7 in
April 47°F (9°C) 2.3 in
May 57°F (14°C) 2.7 in Wettest
June 67°F (19°C) 1.9 in
July 71°F (22°C) 1.9 in Warmest
August 71°F (22°C) 1.6 in
September 62°F (17°C) 1.5 in
October 51°F (11°C) 1.1 in
November 38°F (4°C) 1.2 in
December 32°F (0°C) 0.7 in

Arvada has a seasonal temperature swing of 46°F / from 25°F in January to 71°F in July. Total annual precipitation is 17.8 inches, with May being the wettest month (2.7") and January the driest (0.6").

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