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Weather & Climate in Hillrose, CO
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Hillrose experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 26°F in January while summers reach 74°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 15.9 inches (drier than the 38-inch national average). The area receives 32.2 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 4,169 feet.
Temperature
26°F Jan (-4°C)
74°F Jul (23°C)
| Annual Average | 48.3°F |
| 11% below US avg | |
| January Average | 26°F (-4°C) |
| July Average | 74°F (23°C) |
| Sunny Days | 316 days/yr |
Geography
| Elevation | 4,169 ft (1,271 m) |
| Area | 0.2 sq mi (0.5 km²) |
| Population Density | 1,400/sq mi |
| Coordinates | 40.3245°N, 103.5222°W |
| Timezone | America/Denver |
| County | Morgan County County |
| Nearest Airport | Colorado Plains Regional (AKO) 19 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 41.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 51.9 / 100 |
| Social Vulnerability | 18.0 / 100 |
| Community Resilience | 30.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Low |
| Ice Storm | Relatively Low |
| Drought | Very Low |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
5 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.2.
| Jun 1, 2014 | 9 km NNW of Kersey, Colorado | M3.2 | 93 km | 1 km |
| Mar 30, 2019 | 7 km NE of Greeley, Colorado | M2.9 | 95 km | 6 km |
| Jun 13, 2025 | 7 km SE of Erie, Colorado | M2.7 | 129 km | 9 km |
| Aug 23, 2016 | 2 km SSE of Eaton, Colorado | M2.6 | 102 km | 10 km |
| Jun 23, 2014 | 6 km NNE of Kersey, Colorado | M2.5 | 87 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
800 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 34 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Aug 8, 2023 | EF3 | 55 km | 15.7 mi | 0 |
| Jul 5, 2000 | EF3 | 80 km | 6.0 mi | 0 |
| May 30, 1996 | EF3 | 54 km | 0.5 mi | 0 |
| Jul 21, 1993 | EF3 | 74 km | 12.0 mi | 0 |
| May 10, 1975 | EF3 | 15 km | 8.0 mi | 0 |
| Aug 15, 1974 | EF3 | 50 km | 2.0 mi | 0 |
| May 15, 1952 | EF3 | 89 km | 7.4 mi | 0 |
| May 19, 2024 | EF2 | 70 km | 1.6 mi | 0 |
| Jun 21, 2023 | EF2 | 43 km | 1.9 mi | 0 |
| Jun 21, 2023 | EF2 | 29 km | 4.5 mi | 0 |
| Jun 21, 2023 | EF2 | 57 km | 4.9 mi | 0 |
| Sep 11, 2019 | EF2 | 63 km | 0.5 mi | 0 |
| Sep 11, 2019 | EF2 | 65 km | 0.1 mi | 0 |
| Jul 29, 2018 | EF2 | 10 km | 0.1 mi | 0 |
| Jul 29, 2018 | EF2 | 11 km | 0.1 mi | 0 |
| Jun 12, 2017 | EF2 | 94 km | 15.0 mi | 0 |
| May 7, 2016 | EF2 | 56 km | 8.8 mi | 0 |
| Jul 31, 1996 | EF2 | 87 km | 5.0 mi | 0 |
| Jul 30, 1996 | EF2 | 38 km | 0.5 mi | 0 |
| Jul 13, 1996 | EF2 | 95 km | 12.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: LOGAN (30,076 acres, 2017).
| Year | Name | Acres Burned | Distance |
| 2017 | LOGAN | 30,076 | 83 km |
| 2012 | LAST CHANCE | 17,958 | 61 km |
| 2002 | UNNAMED | 8,688 | 20 km |
| 2002 | UNNAMED | 5,258 | 54 km |
| 2001 | UNNAMED | 3,760 | 15 km |
| 2021 | BIJOU | 3,485 | 42 km |
| 2002 | UNNAMED | 3,275 | 37 km |
| 2022 | CR 15 | 3,244 | 89 km |
| 2002 | UNNAMED | 2,261 | 55 km |
| 2020 | SUNDAY FIRE | 2,204 | 91 km |
| 2002 | UNNAMED | 2,134 | 67 km |
| 2022 | COUNTY ROAD R | 2,080 | 87 km |
| 2016 | CO RD 128 | 1,867 | 96 km |
| 1989 | UNNAMED | 1,782 | 99 km |
| 2024 | 104 | 1,745 | 53 km |
| 2020 | SHAMROCK | 1,582 | 51 km |
| 2001 | SPRING | 1,380 | 91 km |
| 2000 | UNNAMED | 1,337 | 65 km |
| 2024 | QUAIL HOLLOW | 1,267 | 94 km |
| 2024 | WILDHORSE 5 | 1,232 | 91 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 26°F (-4°C) | 0.2 in | Coldest |
| February | 32°F (-0°C) | 0.2 in | Driest |
| March | 40°F (4°C) | 0.8 in | |
| April | 48°F (9°C) | 1.3 in | |
| May | 58°F (15°C) | 2.6 in | Wettest |
| June | 68°F (20°C) | 2.3 in | |
| July | 74°F (23°C) | 2.3 in | Warmest |
| August | 73°F (23°C) | 1.7 in | |
| September | 63°F (17°C) | 1.1 in | |
| October | 51°F (10°C) | 0.8 in | |
| November | 36°F (2°C) | 0.5 in | |
| December | 27°F (-3°C) | 0.3 in |
Hillrose has a seasonal temperature swing of 49°F / from 26°F in January to 74°F in July. Total annual precipitation is 14.0 inches, with May being the wettest month (2.6") and February the driest (0.2").