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Weather & Climate in Calhan, CO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Calhan experiences four distinct seasons with an average annual temperature of 49°F (9°C). Winters average 30°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 14.6 inches (drier than the 38-inch national average). The area receives 31.3 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 6,533 feet.
Temperature
30°F Jan (-1°C)
71°F Jul (22°C)
| Annual Average | 48.5°F |
| 10% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 71°F (22°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 6,533 ft (1,991 m) |
| Area | 0.9 sq mi (2.3 km²) |
| Population Density | 560/sq mi |
| Coordinates | 39.0344°N, 104.2993°W |
| Timezone | America/Denver |
| County | Elbert County County |
| Nearest Airport | Denver International (DEN) 61 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 36.6 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 60.2 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Relatively Moderate |
| Flood | Very Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Relatively Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Volcano | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
16 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 | 53 km | 10 km |
| Dec 23, 1995 | 7 km WNW of Rock Creek Park, Colorado | M3.5 | 63 km | 5 km |
| Jan 18, 1997 | 8 km SE of Westcreek, Colorado | M3.3 | 70 km | 5 km |
| Jan 26, 2008 | 12 km NE of Cotopaxi, Colorado | M3.1 | 129 km | 5 km |
| Jul 22, 2001 | 6 km WNW of Woodland Park, Colorado | M3.1 | 72 km | 5 km |
| Jul 15, 2014 | 23 km NNE of Haswell, Colorado | M3.0 | 118 km | 5 km |
| Feb 26, 2008 | 29 km WNW of Westcreek, Colorado | M2.9 | 104 km | 2 km |
| Jan 19, 1997 | 8 km SE of Westcreek, Colorado | M2.9 | 70 km | 5 km |
| Aug 24, 2016 | 16 km ENE of Beulah Valley, Colorado | M2.9 | 108 km | 3 km |
| Dec 31, 1995 | 6 km WNW of Rock Creek Park, Colorado | M2.8 | 64 km | 5 km |
| Jan 19, 1997 | 8 km SE of Westcreek, Colorado | M2.7 | 70 km | 5 km |
| Apr 18, 1998 | 8 km SE of Westcreek, Colorado | M2.7 | 70 km | 5 km |
| Jun 13, 2025 | 7 km SE of Erie, Colorado | M2.7 | 123 km | 9 km |
| Sep 24, 2013 | 6 km NNE of Cotopaxi, Colorado | M2.6 | 136 km | 5 km |
| Jun 26, 2021 | 19 km WNW of Cañon City, Colorado | M2.5 | 114 km | 8 km |
| Aug 7, 2021 | 23 km NE of Sugar City, Colorado | M2.5 | 99 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
664 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 59 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 31, 1999 | EF3 | 71 km | 7.0 mi | 0 |
| Jun 6, 1990 | EF3 | 54 km | 7.0 mi | 0 |
| Jun 6, 1990 | EF3 | 38 km | 7.0 mi | 0 |
| Jun 15, 1988 | EF3 | 94 km | 2.5 mi | 0 |
| Jun 12, 1982 | EF3 | 90 km | 3.0 mi | 0 |
| Jun 24, 1979 | EF3 | 58 km | 4.3 mi | 0 |
| Jun 13, 1977 | EF3 | 63 km | 4.9 mi | 0 |
| May 18, 1975 | EF3 | 93 km | 4.1 mi | 0 |
| Jun 8, 2014 | EF2 | 99 km | 6.0 mi | 0 |
| Jun 7, 2012 | EF2 | 20 km | 7.5 mi | 0 |
| Jun 15, 2009 | EF2 | 37 km | 4.0 mi | 0 |
| May 10, 2004 | EF2 | 38 km | 6.0 mi | 0 |
| May 28, 2001 | EF2 | 25 km | 0.5 mi | 0 |
| May 28, 2001 | EF2 | 24 km | 0.3 mi | 0 |
| May 31, 1999 | EF2 | 74 km | 7.0 mi | 0 |
| Jul 13, 1996 | EF2 | 86 km | 12.0 mi | 0 |
| Jun 6, 1990 | EF2 | 30 km | 2.0 mi | 0 |
| Jun 15, 1988 | EF2 | 94 km | 0.5 mi | 0 |
| Jun 20, 1987 | EF2 | 86 km | 1.0 mi | 0 |
| Jun 8, 1986 | EF2 | 92 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: HAYMAN (129,417 acres, 2002).
| Year | Name | Acres Burned | Distance |
| 2002 | HAYMAN | 129,417 | 88 km |
| 1986 | UNNAMED | 25,771 | 65 km |
| 2012 | WALDO CANYON | 20,112 | 57 km |
| 2016 | IMPACT AREA | 19,918 | 64 km |
| 1998 | UNNAMED | 18,218 | 65 km |
| 2013 | BLACK FOREST | 11,885 | 34 km |
| 1996 | BUFFALO CREEK | 11,690 | 91 km |
| 2008 | TA-25 | 8,253 | 67 km |
| 2024 | RANGE 135 | 7,766 | 64 km |
| 2018 | HWY 94 | 7,480 | 79 km |
| 2001 | MVD PSFRXASST 4 | 7,375 | 76 km |
| 2002 | MILNE/SQUIRREL | 6,568 | 40 km |
| 2011 | KARVAL | 5,322 | 70 km |
| 2018 | APACHE COMPLEX | 5,182 | 75 km |
| 2009 | QUARRY | 5,141 | 59 km |
| 2017 | MILNE | 5,113 | 38 km |
| 2018 | EDISON | 5,109 | 60 km |
| 1996 | UNNAMED | 4,928 | 78 km |
| 2002 | UNNAMED | 4,911 | 36 km |
| 2002 | HANOVER | 4,903 | 58 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 0.3 in | Driest |
| February | 30°F (-1°C) | 0.3 in | |
| March | 36°F (2°C) | 0.9 in | |
| April | 44°F (6°C) | 1.3 in | |
| May | 53°F (12°C) | 2.4 in | |
| June | 63°F (17°C) | 2.1 in | |
| July | 71°F (22°C) | 2.7 in | Warmest, Wettest |
| August | 67°F (19°C) | 2.4 in | |
| September | 59°F (15°C) | 1.3 in | |
| October | 48°F (9°C) | 0.7 in | |
| November | 35°F (2°C) | 0.5 in | |
| December | 27°F (-3°C) | 0.4 in | Coldest |
Calhan has a seasonal temperature swing of 44°F / from 27°F in December to 71°F in July. Total annual precipitation is 15.1 inches, with July being the wettest month (2.7") and January the driest (0.3").