Weather & Climate in Greeley, CO

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

Greeley experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 25°F in January while summers reach 73°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 20.9 inches (drier than the 38-inch national average). The area receives 24.3 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 4,872 feet.

Temperature

25°F Jan (-4°C) 73°F Jul (23°C)

Annual Average	49.7°F
	8% below US avg
January Average	25°F (-4°C)
July Average	73°F (23°C)
Sunny Days	330 days/yr

Geography

Elevation	4,872 ft (1,485 m)
Area	50.1 sq mi (129.9 km²)
Population Density	2,182/sq mi
Coordinates	40.4140°N, 104.7710°W
Timezone	America/Denver
County	Weld County County
Nearest Airport	Northern Colorado Regional (FNL) 13 miles away

Precipitation & Snow

Annual Rainfall 20.9"

45% below US avg

Snowfall 24.3"

Wettest Month (May) 2.56"

Driest Month (Feb) 0.31"

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

13 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	125 km	10 km
Jan 18, 1997	8 km SE of Westcreek, Colorado	M3.3	149 km	5 km
Jun 1, 2014	9 km NNW of Kersey, Colorado	M3.2	15 km	1 km
Sep 12, 1990	13 km NW of Silverthorne, Colorado	M3.0	146 km	5 km
Feb 26, 2008	29 km WNW of Westcreek, Colorado	M2.9	140 km	2 km
Jan 19, 1997	8 km SE of Westcreek, Colorado	M2.9	149 km	5 km
Mar 30, 2019	7 km NE of Greeley, Colorado	M2.9	13 km	6 km
Jun 21, 2018	16 km SSW of Walden, Colorado	M2.7	136 km	2 km
Jan 19, 1997	8 km SE of Westcreek, Colorado	M2.7	149 km	5 km
Apr 18, 1998	8 km SE of Westcreek, Colorado	M2.7	149 km	5 km
Jun 13, 2025	7 km SE of Erie, Colorado	M2.7	49 km	9 km
Aug 23, 2016	2 km SSE of Eaton, Colorado	M2.6	12 km	10 km
Jun 23, 2014	6 km NNE of Kersey, Colorado	M2.5	20 km	5 km

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

Tornado History

785 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 2 fatalities, 195 injuries.

Date	Rating	Distance	Path	Fatalities
Jun 4, 2015	EF3	32 km	6.7 mi	0
May 22, 2008	EF3	21 km	38.7 mi	1
Jun 15, 1988	EF3	77 km	2.5 mi	0
Jun 12, 1982	EF3	69 km	3.0 mi	0
Jul 16, 1979	EF3	84 km	8.8 mi	1
May 18, 1975	EF3	68 km	4.1 mi	0
Apr 23, 1960	EF3	78 km	17.2 mi	0
May 15, 1952	EF3	19 km	7.4 mi	0
Jun 7, 2021	EF2	32 km	7.5 mi	0
Jul 29, 2018	EF2	99 km	0.1 mi	0
May 27, 2018	EF2	100 km	1.0 mi	0
Jun 12, 2017	EF2	65 km	15.0 mi	0
May 7, 2016	EF2	55 km	8.8 mi	0
May 18, 2010	EF2	92 km	1.5 mi	0
May 22, 2008	EF2	78 km	25.1 mi	0
Jul 31, 1996	EF2	21 km	5.0 mi	0
Jul 30, 1996	EF2	68 km	0.5 mi	0
Jul 13, 1996	EF2	75 km	12.0 mi	0
May 30, 1996	EF2	80 km	1.0 mi	0
Jun 9, 1990	EF2	38 km	23.0 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	70 km
2012	HIGH PARK	90,769	57 km
2000	BOBCAT	10,444	45 km
2020	CALWOOD	9,836	55 km
2004	PICNIC ROCK	9,014	51 km
2024	HAPPY JACK	6,585	89 km
2021	MARSHALL	6,286	62 km
2010	FOURMILE CANYON	5,865	66 km
2002	UNNAMED	5,258	69 km
2002	BIG ELK	4,348	57 km
2021	BIJOU	3,485	72 km
2003	OVERLAND	3,232	58 km
2004	ROSETTA LANE	3,164	66 km
2009	OLD STAGE	3,160	56 km
2011	CRYSTAL FIRE	2,855	49 km
2012	FERN LAKE	2,549	76 km
2002	UNNAMED	2,261	96 km
2020	SUNDAY FIRE	2,204	32 km
2017	CATTLE DRIVE	2,200	58 km
2002	UNNAMED	2,134	96 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	25°F (-4°C)	0.4 in	Coldest
February	33°F (0°C)	0.3 in	Driest
March	40°F (5°C)	1.2 in
April	48°F (9°C)	1.6 in
May	58°F (14°C)	2.6 in	Wettest
June	67°F (20°C)	2.0 in
July	73°F (23°C)	1.7 in	Warmest
August	70°F (21°C)	1.3 in
September	62°F (16°C)	1.3 in
October	50°F (10°C)	0.9 in
November	37°F (3°C)	0.7 in
December	29°F (-2°C)	0.4 in

Greeley has a seasonal temperature swing of 47°F / from 25°F in January to 73°F in July. Total annual precipitation is 14.4 inches, with May being the wettest month (2.6") and February the driest (0.3").

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