Weather & Climate in South Wenatchee, WA

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

South Wenatchee experiences four distinct seasons with an average annual temperature of 53°F (11°C). Winters average 31°F in January while summers reach 76°F in July. The area gets 279 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 9.0 inches (drier than the 38-inch national average). The area receives 16.5 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 28 / among the cleanest air in the country. The city sits at an elevation of 618 feet.

Temperature

31°F Jan (-1°C) 76°F Jul (24°C)

Annual Average	52.5°F
	3% below US avg
January Average	31°F (-1°C)
July Average	76°F (24°C)
Sunny Days	279 days/yr

Geography

Elevation	618 ft (188 m)
Area	0.6 sq mi (1.5 km²)
Population Density	934/sq mi
Coordinates	47.3944°N, 120.2893°W
Timezone	America/Los_Angeles
County	Kittitas County County
Nearest Airport	Grant County International (MWH) 47 miles away

Precipitation & Snow

Annual Rainfall 9.0"

76% below US avg

Snowfall 16.5"

Wettest Month (Dec) 1.97"

Driest Month (Jul) 0.31"

Air Quality

AQI Median	28.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Moderate
Risk Score	89.1 / 100
Social Vulnerability	40.2 / 100
Community Resilience	64.6 / 100

Hazard Breakdown

Tornado	Very Low
Earthquake	Relatively Moderate
Wildfire	Relatively High
Flood	Relatively Moderate
Hail	Very Low
Strong Wind	Very Low
Heat Wave	Relatively Low
Winter Weather	Relatively Low
Lightning	Relatively Low
Ice Storm	Very Low
Drought	Very Low
Cold Wave	Relatively Low
Landslide	Relatively High
Volcano	Very Low
Avalanche	Very High

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

489 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.4.

May 3, 1996	8 km NNE of Lake Marcel-Stillwater, Washington	M5.4	126 km	4 km
Jun 24, 1997	16 km WNW of Malott, Washington	M4.6	112 km	10 km
Jul 12, 2019	2 km S of Roosevelt, Washington	M4.6	140 km	29 km
Jun 18, 1994	11 km SE of Skykomish, Washington	M4.3	78 km	-1 km
Jun 27, 2013	25 km N of Leavenworth, Washington	M4.3	56 km	8 km
Feb 18, 2015	15 km ENE of Cle Elum, Washington	M4.2	39 km	4 km
Jun 17, 2010	30 km S of White Swan, Washington	M4.2	147 km	3 km
Sep 1, 2015	15 km N of Nespelem Community, Washington	M4.2	139 km	9 km
May 20, 1995	15 km NNE of Ashford, Washington	M4.1	137 km	12 km
Aug 16, 2004	16 km ENE of Packwood, Washington	M4.0	120 km	-1 km
Oct 9, 1998	20 km S of White Swan, Washington	M4.0	136 km	2 km
Aug 8, 2023	9 km NNE of Snoqualmie, Washington	M3.9	114 km	16 km
Jun 25, 2004	17 km W of Packwood, Washington	M3.9	149 km	-1 km
Sep 10, 1994	2 km SE of Enumclaw, Washington	M3.9	129 km	17 km
Nov 18, 1997	20 km NW of Bickleton, Washington	M3.9	140 km	15 km
Apr 15, 1991	4 km SE of Pateros, Washington	M3.9	77 km	11 km
Sep 12, 2015	3 km NE of North Bend, Washington	M3.9	111 km	19 km
Mar 29, 2010	10 km NE of Cliffdell, Washington	M3.8	67 km	1 km
May 18, 2008	11 km SSW of Benton City, Washington	M3.7	148 km	20 km
Sep 4, 2011	14 km N of Richland, Washington	M3.7	134 km	2 km

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

Tornado History

13 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2.

Date	Rating	Distance	Path	Fatalities
Apr 5, 1972	EF2	96 km	0.1 mi	0
Apr 30, 1957	EF2	90 km	1.0 mi	0
May 30, 1987	EF1	92 km	1.0 mi	0
May 1, 2024	EF0	40 km	0.4 mi	0
May 26, 2023	EF0	69 km	0.4 mi	0
Jul 22, 2016	EF0	79 km	0.2 mi	0
May 19, 2010	EF0	89 km	0.2 mi	0
Apr 7, 2008	EF0	97 km	0.1 mi	0
May 9, 2005	EF0	87 km	0.2 mi	0
May 19, 2004	EF0	4 km	0.3 mi	0
May 9, 1999	EF0	84 km	—	0
Jul 4, 1992	EF0	31 km	0.1 mi	0
Jul 1, 1979	EF0	76 km	0.1 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Nearby Volcanoes

5 volcanoes within 200 km. Closest: Glacier Peak (101 km).

Name	Type	Elevation	Last Eruption	Distance
Glacier Peak	Stratovolcano	3,213 m (10,541 ft)	1700	101 km
Rainier	Stratovolcano	4,392 m (14,409 ft)	1450	127 km
Adams	Stratovolcano	3,742 m (12,277 ft)	950	161 km
Baker	Stratovolcano(es)	3,285 m (10,778 ft)	1880	191 km
St. Helens	Stratovolcano	2,549 m (8,363 ft)	2008	196 km

Source: Smithsonian Institution Global Volcanism Program (GVP).

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: CARLTON COMPLEX (276,249 acres, 2014).

Year	Name	Acres Burned	Distance
2014	CARLTON COMPLEX	276,249	98 km
2020	PEARL HILL	217,720	69 km
1994	TYEE CREEK	123,618	47 km
2021	SCHNEIDER SPRINGS	114,743	87 km
2013	COLOCKUM TARPS	79,279	27 km
2020	EVANS CANYON	76,288	68 km
1996	COLD CREEK	72,859	82 km
2015	WOLVERINE	66,329	86 km
2018	BOYLSTON	66,292	62 km
2012	TABLE MOUNTAIN COMPLEX	65,887	22 km
2015	BLACK CANYON	61,379	67 km
2001	REX CREEK COMPLEX (REX CREEK)	54,456	86 km
2017	NORSE PEAK	51,017	95 km
2024	RETREAT	44,681	91 km
2018	COUGAR CREEK	42,681	49 km
2002	DEER POINT	41,348	69 km
2017	JOLLY MOUNTAIN	38,159	52 km
2004	POT PEAK-SISI RIDGE COMPLEX	37,603	67 km
1988	DINKELMAN	36,246	28 km
2003	UMTANUM RIDGE	34,351	81 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	31°F (-1°C)	1.7 in
February	34°F (1°C)	1.1 in
March	42°F (5°C)	0.8 in
April	49°F (10°C)	0.6 in
May	57°F (14°C)	0.6 in
June	65°F (18°C)	0.6 in
July	76°F (24°C)	0.3 in	Warmest, Driest
August	70°F (21°C)	0.5 in
September	61°F (16°C)	0.5 in
October	50°F (10°C)	0.6 in
November	37°F (3°C)	1.7 in
December	28°F (-2°C)	2.0 in	Coldest, Wettest

South Wenatchee has a seasonal temperature swing of 47°F / from 28°F in December to 76°F in July. Total annual precipitation is 11.0 inches, with December being the wettest month (2.0") and July the driest (0.3").

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