Weather & Climate in Chester, OK

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

Chester enjoys a temperate climate with an average annual temperature of 58°F (14°C). Winters average 35°F in January while summers reach 82°F in July. The area gets 323 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 28.8 inches (drier than the 38-inch national average). The area receives 12.3 inches of snow annually. Air quality is rated Good with a median AQI of 45. The city sits at an elevation of 1,713 feet.

Temperature

35°F Jan (2°C) 82°F Jul (28°C)

Annual Average	58.0°F
	7% above US avg
January Average	35°F (2°C)
July Average	82°F (28°C)
Sunny Days	323 days/yr

Geography

Elevation	1,713 ft (522 m)
Area	4.0 sq mi (10.3 km²)
Population Density	19/sq mi
Coordinates	36.2157°N, 98.9213°W
Timezone	America/Chicago
County	Major County County
Nearest Airport	Clinton Regional (CLK) 47 miles away

Precipitation & Snow

Annual Rainfall 28.8"

24% below US avg

Snowfall 12.3"

Wettest Month (May) 4.29"

Driest Month (Jan) 0.67"

Air Quality

AQI Median	45.0
Rating	Good

Natural Hazard Risk

Overall Risk	Very Low
Risk Score	34.2 / 100
Social Vulnerability	42.5 / 100
Community Resilience	34.4 / 100

Hazard Breakdown

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

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

Earthquake History

4,808 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.1.

Feb 13, 2016	18 km SE of Waynoka, Oklahoma	M5.1	36 km	8 km
Jan 7, 2016	16 km SE of Waynoka, Oklahoma	M4.7	36 km	4 km
Apr 7, 2018	5 km WNW of Lucien, Oklahoma	M4.6	126 km	6 km
Apr 9, 2018	8 km NNE of Marshall, Oklahoma	M4.6	121 km	5 km
Jul 27, 2015	4 km NNE of Crescent, Oklahoma	M4.5	124 km	5 km
Jan 31, 2022	7 km NW of Medford, Oklahoma	M4.5	123 km	8 km
Jun 9, 2018	8 km E of Nescatunga, Oklahoma	M4.4	98 km	10 km
Jul 9, 2016	17 km SE of Waynoka, Oklahoma	M4.4	31 km	7 km
Jan 7, 2016	16 km SE of Waynoka, Oklahoma	M4.4	34 km	7 km
Jan 7, 2016	17 km SE of Waynoka, Oklahoma	M4.4	33 km	7 km
May 17, 2019	8 km E of Pond Creek, Oklahoma	M4.4	120 km	5 km
Aug 19, 2014	12 km SSW of Guthrie, Oklahoma	M4.4	140 km	5 km
Jul 20, 2015	7 km SSE of Byron, Oklahoma	M4.4	91 km	4 km
Sep 8, 2017	9 km ESE of Jefferson, Oklahoma	M4.3	123 km	6 km
Jun 17, 2015	6 km ESE of Covington, Oklahoma	M4.3	126 km	6 km
Jul 29, 2014	9 km E of Nescatunga, Oklahoma	M4.3	99 km	5 km
Mar 30, 2014	2 km S of Marshall, Oklahoma	M4.2	116 km	5 km
Mar 5, 2018	5 km NNW of Breckinridge, Oklahoma	M4.2	109 km	8 km
Feb 5, 2015	8 km NE of Cherokee, Oklahoma	M4.2	87 km	4 km
Jul 8, 2016	17 km SE of Waynoka, OK	M4.2	33 km	6 km

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

Tornado History

615 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 16 fatalities, 168 injuries.

Date	Rating	Distance	Path	Fatalities
May 3, 1999	EF4	93 km	15.0 mi	1
May 2, 1979	EF4	57 km	20.6 mi	1
Jun 10, 1967	EF4	80 km	8.7 mi	4
Jun 10, 1967	EF4	70 km	0.1 mi	0
Mar 16, 1965	EF4	85 km	82.7 mi	0
Apr 14, 2012	EF3	78 km	34.0 mi	6
May 24, 2011	EF3	30 km	13.2 mi	1
May 23, 2008	EF3	76 km	5.0 mi	0
May 23, 2008	EF3	84 km	11.0 mi	0
Apr 17, 2002	EF3	19 km	8.0 mi	0
Oct 9, 2001	EF3	97 km	11.5 mi	0
May 3, 1999	EF3	85 km	21.0 mi	0
May 26, 1991	EF3	44 km	12.5 mi	0
Apr 12, 1991	EF3	96 km	9.0 mi	0
Mar 26, 1991	EF3	98 km	67.0 mi	0
May 26, 1990	EF3	99 km	3.0 mi	0
Oct 31, 1984	EF3	7 km	20.0 mi	0
May 13, 1983	EF3	96 km	8.8 mi	0
May 22, 1981	EF3	82 km	10.3 mi	0
Jun 7, 1971	EF3	56 km	1.5 mi	0

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

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: ANDERSON CREEK FIRE (374,523 acres, 2016).

Year	Name	Acres Burned	Distance
2016	ANDERSON CREEK FIRE	374,523	99 km
2018	RHEA	277,949	25 km
1996	UNNAMED	88,943	87 km
2024	CATESBY FIRE	83,975	84 km
2017	OKS - 283	68,558	91 km
2016	350 COMPLEX	58,055	57 km
2018	34 COMPLEX	57,533	56 km
2017	OKS - SELMAN	44,767	56 km
2009	PUTNAM	42,995	29 km
2009	CHESTER	34,432	14 km
2015	BOILING SPRINGS FIRE	20,264	48 km
2022	217	18,293	42 km
2008	UNNAMED	16,290	72 km
2022	720 FIRE	8,761	49 km
2018	SHAW	8,581	99 km
2019	GAGE FIRE	7,883	76 km
2014	CAMARGO	7,494	35 km
2008	UNNAMED	6,464	52 km
2008	UNNAMED	6,276	83 km
2020	EWB	5,706	95 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	35°F (2°C)	0.7 in	Coldest, Driest
February	40°F (4°C)	1.1 in
March	48°F (9°C)	1.9 in
April	58°F (14°C)	2.3 in
May	67°F (19°C)	4.3 in	Wettest
June	76°F (25°C)	3.5 in
July	82°F (28°C)	2.3 in	Warmest
August	80°F (27°C)	2.6 in
September	72°F (22°C)	2.8 in
October	60°F (16°C)	1.9 in
November	46°F (8°C)	1.7 in
December	37°F (3°C)	0.8 in

Chester has a seasonal temperature swing of 46°F / from 35°F in January to 82°F in July. Total annual precipitation is 25.8 inches, with May being the wettest month (4.3") and January the driest (0.7").

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