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Weather & Climate in Florissant, CO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Florissant has a cool climate with an average annual temperature of 40°F (5°C). Winters average 22°F in January while summers reach 60°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 15.0 inches (drier than the 38-inch national average). The area receives 58.9 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 8,193 feet.
Temperature
22°F Jan (-5°C)
60°F Jul (16°C)
| Annual Average | 40.3°F |
| 25% below US avg | |
| January Average | 22°F (-5°C) |
| July Average | 60°F (16°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 8,193 ft (2,497 m) |
| Area | 0.5 sq mi (1.3 km²) |
| Population Density | 300/sq mi |
| Coordinates | 38.9446°N, 105.2899°W |
| Timezone | America/Denver |
| County | Teller County County |
| Nearest Airport | Denver International (DEN) 71 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 38.8 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 46.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Relatively Moderate |
| Flood | Very Low |
| Hail | Relatively Moderate |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively High |
| Ice Storm | Very Low |
| Drought | No Rating |
| Cold Wave | Very Low |
| Landslide | Relatively Moderate |
| Volcano | Very Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
28 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 | 56 km | 10 km |
| Dec 23, 1995 | 7 km WNW of Rock Creek Park, Colorado | M3.5 | 40 km | 5 km |
| Feb 28, 2019 | 22 km NNW of Blanca, Colorado | M3.4 | 148 km | 5 km |
| Jan 18, 1997 | 8 km SE of Westcreek, Colorado | M3.3 | 24 km | 5 km |
| Feb 28, 2019 | 22 km N of Blanca, Colorado | M3.3 | 146 km | 6 km |
| Jul 8, 1993 | 9 km ENE of Aspen, Colorado | M3.1 | 127 km | 5 km |
| Jul 22, 2001 | 6 km WNW of Woodland Park, Colorado | M3.1 | 16 km | 5 km |
| Jan 26, 2008 | 12 km NE of Cotopaxi, Colorado | M3.1 | 61 km | 5 km |
| Sep 12, 1990 | 13 km NW of Silverthorne, Colorado | M3.0 | 115 km | 5 km |
| Jan 19, 1997 | 8 km SE of Westcreek, Colorado | M2.9 | 24 km | 5 km |
| Jan 1, 2003 | 6 km SE of Aspen, Colorado | M2.9 | 129 km | 5 km |
| Aug 24, 2016 | 16 km ENE of Beulah Valley, Colorado | M2.9 | 98 km | 3 km |
| Feb 26, 2008 | 29 km WNW of Westcreek, Colorado | M2.9 | 40 km | 2 km |
| Dec 31, 1995 | 6 km WNW of Rock Creek Park, Colorado | M2.8 | 42 km | 5 km |
| Jul 24, 2019 | 24 km N of Blanca, Colorado | M2.8 | 144 km | 6 km |
| Apr 11, 2021 | 9 km E of Woody Creek, Colorado | M2.8 | 134 km | 2 km |
| Oct 13, 2002 | 13 km S of Norrie, Colorado | M2.8 | 121 km | 5 km |
| Apr 12, 2015 | 5 km NE of Aspen, Colorado | M2.8 | 131 km | 5 km |
| Mar 26, 2014 | 20 km N of Blanca, Colorado | M2.7 | 148 km | 3 km |
| Apr 18, 1998 | 8 km SE of Westcreek, Colorado | M2.7 | 24 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
289 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 40 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jun 15, 1988 | EF3 | 93 km | 2.5 mi | 0 |
| Jun 24, 1979 | EF3 | 34 km | 4.3 mi | 0 |
| Jun 13, 1977 | EF3 | 23 km | 4.9 mi | 0 |
| Jun 8, 2014 | EF2 | 14 km | 6.0 mi | 0 |
| Jun 7, 2012 | EF2 | 98 km | 7.5 mi | 0 |
| Jun 15, 2009 | EF2 | 65 km | 4.0 mi | 0 |
| May 28, 2001 | EF2 | 78 km | 0.3 mi | 0 |
| May 28, 2001 | EF2 | 80 km | 0.5 mi | 0 |
| Jun 15, 1988 | EF2 | 93 km | 0.5 mi | 0 |
| Jun 8, 1986 | EF2 | 93 km | 1.1 mi | 0 |
| Jul 19, 1985 | EF2 | 75 km | 0.5 mi | 0 |
| Aug 21, 1984 | EF2 | 98 km | 1.0 mi | 0 |
| Jun 4, 1983 | EF2 | 75 km | 8.0 mi | 0 |
| Jun 3, 1981 | EF2 | 89 km | 0.1 mi | 0 |
| May 17, 1978 | EF2 | 89 km | 0.5 mi | 0 |
| Jun 13, 1977 | EF2 | 64 km | 1.0 mi | 0 |
| Jun 13, 1977 | EF2 | 26 km | 1.0 mi | 0 |
| Jun 13, 1977 | EF2 | 43 km | 1.0 mi | 0 |
| Apr 11, 1977 | EF2 | 51 km | 1.0 mi | 0 |
| May 20, 1961 | EF2 | 62 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: HAYMAN (129,417 acres, 2002).
| Year | Name | Acres Burned | Distance |
| 2002 | HAYMAN | 129,417 | 31 km |
| 1986 | UNNAMED | 25,771 | 100 km |
| 2012 | WALDO CANYON | 20,112 | 30 km |
| 2016 | IMPACT AREA | 19,918 | 60 km |
| 2016 | JUNKINS | 19,023 | 91 km |
| 1998 | UNNAMED | 18,218 | 61 km |
| 2016 | HAYDEN PASS | 17,977 | 83 km |
| 2018 | WESTON PASS | 13,169 | 64 km |
| 2013 | BLACK FOREST | 11,885 | 53 km |
| 1996 | BUFFALO CREEK | 11,690 | 48 km |
| 2005 | MASON | 11,630 | 90 km |
| 2019 | DECKER | 9,875 | 83 km |
| 2000 | HIGH MEADOWS | 9,607 | 51 km |
| 2008 | TA-25 | 8,253 | 53 km |
| 2024 | RANGE 135 | 7,766 | 60 km |
| 2001 | MVD PSFRXASST 4 | 7,375 | 34 km |
| 2002 | MILNE/SQUIRREL | 6,568 | 69 km |
| 2018 | APACHE COMPLEX | 5,182 | 64 km |
| 2009 | QUARRY | 5,141 | 54 km |
| 2017 | MILNE | 5,113 | 78 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 22°F (-5°C) | 0.4 in | Driest |
| February | 22°F (-5°C) | 0.5 in | |
| March | 28°F (-2°C) | 1.0 in | |
| April | 35°F (2°C) | 1.2 in | |
| May | 45°F (7°C) | 1.7 in | |
| June | 54°F (12°C) | 1.8 in | |
| July | 60°F (16°C) | 2.8 in | Warmest, Wettest |
| August | 58°F (14°C) | 2.8 in | |
| September | 51°F (10°C) | 1.5 in | |
| October | 40°F (5°C) | 0.9 in | |
| November | 28°F (-2°C) | 0.7 in | |
| December | 20°F (-7°C) | 0.7 in | Coldest |
Florissant has a seasonal temperature swing of 40°F / from 20°F in December to 60°F in July. Total annual precipitation is 16.1 inches, with July being the wettest month (2.8") and January the driest (0.4").