Weather & Climate in Cyril, OK

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

Cyril enjoys a temperate climate with an average annual temperature of 61°F (16°C). Winters average 39°F in January while summers reach 82°F in July. The area gets 318 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Air quality is rated Good with a median AQI of 45. The city sits at an elevation of 1,372 feet.

Temperature

39°F Jan (4°C) 82°F Jul (28°C)

Annual Average	60.6°F
	12% above US avg
January Average	39°F (4°C)
July Average	82°F (28°C)
Sunny Days	318 days/yr

Geography

Elevation	1,372 ft (418 m)
Area	0.6 sq mi (1.5 km²)
Population Density	1,367/sq mi
Coordinates	34.8985°N, 98.2029°W
Timezone	America/Chicago
County	Comanche County County
Nearest Airport	Lawton-Fort Sill Regional (LAW) 26 miles away

Precipitation & Snow

Wettest Month (May) 5.00"

Driest Month (Jan) 1.06"

Air Quality

AQI Median	45.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Moderate
Risk Score	86.2 / 100
Social Vulnerability	59.6 / 100
Community Resilience	26.6 / 100

Hazard Breakdown

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

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

Earthquake History

2,197 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	149 km	3 km
Dec 7, 2013	8 km SW of Arcadia, Oklahoma	M4.5	108 km	8 km
Jul 27, 2015	4 km NNE of Crescent, Oklahoma	M4.5	134 km	5 km
Aug 19, 2014	12 km SSW of Guthrie, Oklahoma	M4.4	118 km	5 km
Apr 16, 2013	Oklahoma	M4.4	134 km	6 km
Jun 16, 2014	7 km NNE of Lake Aluma, Oklahoma	M4.3	106 km	5 km
Jan 13, 2024	6 km W of Arcadia, Oklahoma	M4.3	112 km	7 km
Apr 7, 2014	6 km NNW of Meridian, Oklahoma	M4.2	139 km	5 km
Apr 16, 2013	3 km WSW of Wellston, Oklahoma	M4.2	133 km	7 km
Jan 1, 2016	6 km ENE of Edmond, Oklahoma	M4.2	112 km	6 km
Apr 19, 2015	6 km W of Langston, Oklahoma	M4.2	141 km	3 km
Mar 30, 2014	2 km S of Marshall, Oklahoma	M4.2	147 km	5 km
Aug 3, 2017	6 km ENE of Edmond, Oklahoma	M4.2	113 km	5 km
Apr 7, 2016	1 km E of Luther, Oklahoma	M4.2	126 km	6 km
Mar 29, 2016	4 km NNE of Crescent, Oklahoma	M4.2	134 km	5 km
Jan 18, 1995	4 km SSE of Erin Springs, Oklahoma	M4.2	57 km	5 km
Mar 30, 2014	3 km SSW of Marshall, Oklahoma	M4.1	146 km	4 km
Apr 27, 2015	7 km WSW of Langston, Oklahoma	M4.1	139 km	5 km
Jun 18, 2014	7 km NE of Lake Aluma, Oklahoma	M4.1	107 km	5 km
Jul 28, 2015	4 km NNE of Crescent, Oklahoma	M4.1	134 km	5 km

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

Tornado History

1,006 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 120 fatalities, 2,071 injuries.

Date	Rating	Distance	Path	Fatalities
May 20, 2013	EF5	68 km	13.9 mi	24
May 24, 2011	EF5	61 km	63.1 mi	9
May 3, 1999	EF5	41 km	37.0 mi	36
May 9, 2016	EF4	86 km	8.9 mi	1
May 19, 2013	EF4	91 km	23.0 mi	2
May 24, 2011	EF4	25 km	33.3 mi	1
May 24, 2011	EF4	43 km	23.1 mi	0
May 10, 2010	EF4	77 km	24.0 mi	2
May 10, 2010	EF4	77 km	22.3 mi	1
May 8, 2003	EF4	78 km	17.3 mi	0
May 22, 1981	EF4	49 km	16.7 mi	0
Apr 30, 1978	EF4	86 km	9.3 mi	0
Apr 17, 1976	EF4	29 km	32.9 mi	0
May 24, 1973	EF4	60 km	13.3 mi	2
Apr 19, 1972	EF4	83 km	28.2 mi	5
May 26, 1962	EF4	86 km	10.1 mi	0
May 25, 1962	EF4	100 km	7.2 mi	0
Sep 14, 1957	EF4	87 km	67.5 mi	2
May 24, 1957	EF4	75 km	21.6 mi	4
May 1, 1954	EF4	94 km	59.2 mi	0

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	96 km
2011	FERGUSON	41,429	47 km
2012	TOWNLEY ROAD	24,139	57 km
2009	RATCLIFF CITY-TATUMS	23,099	81 km
1996	WESTSIDE	16,723	55 km
2005	UNNAMED	15,416	96 km
2006	RATLIFF CITY	12,435	86 km
2024	RUSH	12,239	43 km
2008	UNNAMED	10,392	37 km
2022	62 FIRE	9,804	65 km
1993	CRATER CREEK	8,963	41 km
2000	CRATERLK-L	8,876	43 km
1994	MT SCOTT	8,005	37 km
2000	UNNAMED	7,962	34 km
2006	BIA EMPIRE	7,544	54 km
2015	CRATER CREEK	7,378	42 km
2012	NOBLE	7,037	93 km
2006	BIALOCO	6,843	81 km
2017	SQUIRREL CREEK	6,463	80 km
2006	VELMA	6,364	66 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	39°F (4°C)	1.1 in	Coldest, Driest
February	43°F (6°C)	1.5 in
March	51°F (11°C)	2.3 in
April	60°F (16°C)	2.6 in
May	69°F (20°C)	5.0 in	Wettest
June	77°F (25°C)	4.0 in
July	82°F (28°C)	2.2 in	Warmest
August	81°F (27°C)	2.5 in
September	74°F (23°C)	3.8 in
October	63°F (17°C)	3.0 in
November	49°F (10°C)	1.9 in
December	40°F (5°C)	1.3 in

Cyril has a seasonal temperature swing of 43°F / from 39°F in January to 82°F in July. Total annual precipitation is 31.0 inches, with May being the wettest month (5.0") and January the driest (1.1").

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