Weather & Climate in Sulphur, OK

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

Sulphur enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 40°F in January while summers reach 82°F in July. The area gets 310 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 40.7 inches. Air quality is rated Good with a median AQI of 45. The city sits at an elevation of 932 feet.

Temperature

40°F Jan (5°C) 82°F Jul (28°C)

Annual Average	61.3°F
	14% above US avg
January Average	40°F (5°C)
July Average	82°F (28°C)
Sunny Days	310 days/yr

Geography

Elevation	932 ft (284 m)
Area	6.9 sq mi (17.8 km²)
Population Density	814/sq mi
Coordinates	34.5021°N, 96.9852°W
Timezone	America/Chicago
County	Pontotoc County County
Nearest Airport	Ada Regional (ADT) 27 miles away

Precipitation & Snow

Annual Rainfall 40.7"

7% above US avg

Wettest Month (May) 5.71"

Driest Month (Jan) 1.54"

Air Quality

AQI Median	45.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Low
Risk Score	62.9 / 100
Social Vulnerability	50.1 / 100
Community Resilience	63.7 / 100

Hazard Breakdown

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

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

Earthquake History

1,586 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.1.

Feb 3, 2024	8 km NW of Prague, Oklahoma	M5.1	117 km	3 km
Sep 6, 1997	6 km N of Tupelo, Oklahoma	M4.5	53 km	5 km
Dec 7, 2013	8 km SW of Arcadia, Oklahoma	M4.5	128 km	8 km
Apr 16, 2013	Oklahoma	M4.4	132 km	6 km
Aug 19, 2014	12 km SSW of Guthrie, Oklahoma	M4.4	148 km	5 km
Jun 16, 2014	7 km NNE of Lake Aluma, Oklahoma	M4.3	127 km	5 km
Jan 13, 2024	6 km W of Arcadia, Oklahoma	M4.3	135 km	7 km
Apr 7, 2016	1 km E of Luther, Oklahoma	M4.2	130 km	6 km
Aug 3, 2017	6 km ENE of Edmond, Oklahoma	M4.2	136 km	5 km
Jan 1, 2016	6 km ENE of Edmond, Oklahoma	M4.2	135 km	6 km
Apr 16, 2013	3 km WSW of Wellston, Oklahoma	M4.2	132 km	7 km
Jan 18, 1995	4 km SSE of Erin Springs, Oklahoma	M4.2	64 km	5 km
Jun 18, 2014	7 km NE of Lake Aluma, Oklahoma	M4.1	127 km	5 km
Apr 3, 2012	8 km SSW of Pittsburg, Oklahoma	M4.1	103 km	5 km
Jan 13, 2024	6 km ENE of Edmond, Oklahoma	M4.1	136 km	7 km
Feb 27, 2010	8 km SE of Sparks, Oklahoma	M4.1	119 km	5 km
Apr 10, 2014	12 km SE of Cedar Valley, Oklahoma	M4.0	149 km	7 km
Apr 6, 2023	4 km ESE of Carney, Oklahoma	M4.0	144 km	7 km
Jun 20, 2015	9 km NW of Arcadia, Oklahoma	M4.0	142 km	3 km
Aug 17, 2016	2 km SW of Wellston, Oklahoma	M4.0	131 km	6 km

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

Tornado History

825 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 81 fatalities, 1,026 injuries.

Date	Rating	Distance	Path	Fatalities
May 5, 1960	EF5	87 km	71.8 mi	5
Apr 27, 2024	EF4	67 km	26.8 mi	1
May 9, 2016	EF4	35 km	8.9 mi	1
May 19, 2013	EF4	88 km	23.0 mi	2
May 24, 2011	EF4	80 km	23.1 mi	0
May 10, 2010	EF4	100 km	24.0 mi	2
May 10, 2010	EF4	86 km	22.3 mi	1
Feb 10, 2009	EF4	86 km	37.0 mi	8
May 11, 1992	EF4	99 km	10.0 mi	0
Apr 19, 1972	EF4	54 km	28.2 mi	5
Oct 5, 1970	EF4	92 km	25.0 mi	4
Apr 27, 1966	EF4	46 km	10.2 mi	0
May 4, 1960	EF4	53 km	8.0 mi	0
May 9, 1959	EF4	39 km	6.2 mi	7
Sep 14, 1957	EF4	55 km	67.5 mi	2
Apr 2, 1957	EF4	64 km	5.2 mi	2
Apr 2, 1957	EF4	82 km	7.9 mi	3
Apr 28, 1950	EF4	84 km	4.5 mi	5
Nov 3, 2024	EF3	93 km	21.7 mi	0
Apr 27, 2024	EF3	3 km	9.9 mi	1

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

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: LOCO-HEALDTON (56,584 acres, 2009).

Year	Name	Acres Burned	Distance
2009	LOCO-HEALDTON	56,584	47 km
1991	ARBUCKLE	29,823	20 km
2021	WINDMILL	28,410	27 km
2009	RATCLIFF CITY-TATUMS	23,099	44 km
2009	BRUSHY MOUNTAIN	18,412	58 km
2005	UNNAMED	15,416	31 km
2006	RATLIFF CITY	12,435	45 km
2005	UNNAMED	10,935	93 km
2000	UNNAMED	9,943	21 km
2005	WEWOKA CREEK	9,921	89 km
2017	CHOCKIE FIRE	8,574	98 km
2006	BIA EMPIRE	7,544	92 km
2005	SHERWOOD	7,473	74 km
1988	UNNAMED	7,228	17 km
2012	NOBLE	7,037	77 km
2006	BIALOCO	6,843	66 km
2005	MISSION	6,735	83 km
2017	SQUIRREL CREEK	6,463	91 km
2006	VELMA	6,364	63 km
2009	LINDSAY	6,195	78 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	40°F (5°C)	1.5 in	Coldest, Driest
February	44°F (6°C)	2.1 in
March	52°F (11°C)	3.5 in
April	61°F (16°C)	3.6 in
May	69°F (20°C)	5.7 in	Wettest
June	76°F (25°C)	4.2 in
July	82°F (28°C)	2.6 in	Warmest
August	81°F (27°C)	2.4 in
September	74°F (23°C)	4.6 in
October	63°F (17°C)	4.4 in
November	51°F (10°C)	2.8 in
December	42°F (6°C)	2.0 in

Sulphur has a seasonal temperature swing of 42°F / from 40°F in January to 82°F in July. Total annual precipitation is 39.5 inches, with May being the wettest month (5.7") and January the driest (1.5").

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