Weather & Climate in O'Brien, TX

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

O'Brien enjoys a temperate climate with an average annual temperature of 65°F (18°C). Winters average 45°F in January while summers reach 85°F in July. The area gets 328 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 25.7 inches (drier than the 38-inch national average). The area receives 4.3 inches of snow annually. Air quality is rated Good with a median AQI of 42. The city sits at an elevation of 1,574 feet.

Temperature

45°F Jan (7°C) 85°F Jul (29°C)

Annual Average	65.2°F
	21% above US avg
January Average	45°F (7°C)
July Average	85°F (29°C)
Sunny Days	328 days/yr

Geography

Elevation	1,574 ft (480 m)
Area	0.5 sq mi (1.3 km²)
Population Density	216/sq mi
Coordinates	33.3802°N, 99.8438°W
Timezone	America/Chicago
County	Haskell County County
Nearest Airport	Abilene Regional (ABI) 68 miles away

Precipitation & Snow

Annual Rainfall 25.7"

32% below US avg

Snowfall 4.3"

Wettest Month (May) 3.50"

Driest Month (Jan) 0.87"

Air Quality

AQI Median	42.0
Rating	Good

Natural Hazard Risk

Overall Risk	Very Low
Risk Score	11.7 / 100
Social Vulnerability	59.8 / 100
Community Resilience	34.9 / 100

Hazard Breakdown

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

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

Earthquake History

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

Jul 26, 2024	17 km NNE of Hermleigh, Texas	M5.1	102 km	3 km
Jul 23, 2024	17 km NNE of Hermleigh, Texas	M4.9	102 km	3 km
Feb 16, 2023	15 km NE of Hermleigh, Texas	M4.7	104 km	8 km
Jul 27, 2024	13 km NNE of Hermleigh, Texas	M4.5	106 km	3 km
Jul 23, 2024	16 km NNE of Hermleigh, Texas	M4.4	104 km	3 km
Sep 11, 2011	20 km NE of Snyder, Texas	M4.3	105 km	5 km
Jul 25, 2024	16 km NNE of Hermleigh, Texas	M4.0	104 km	3 km
Sep 22, 2023	8 km NE of Hermleigh, Texas	M3.9	110 km	7 km
Mar 13, 2011	32 km WNW of Rotan, Texas	M3.8	96 km	5 km
Aug 17, 2022	17 km NNE of Hermleigh, Texas	M3.8	103 km	6 km
Jul 30, 2024	15 km NE of Hermleigh, Texas	M3.8	103 km	8 km
Jul 20, 2025	14 km NE of Hermleigh, Texas	M3.7	104 km	6 km
Aug 14, 2024	16 km NNE of Hermleigh, Texas	M3.6	104 km	4 km
Jan 10, 2016	25 km NNE of Snyder, Texas	M3.6	105 km	3 km
Oct 2, 2023	16 km NE of Hermleigh, Texas	M3.6	103 km	4 km
Sep 12, 2011	12 km NNE of Snyder, Texas	M3.5	114 km	8 km
Jan 6, 2015	western Texas	M3.5	111 km	4 km
Feb 11, 2023	16 km NE of Hermleigh, Texas	M3.5	103 km	9 km
Feb 3, 2023	16 km NE of Hermleigh, Texas	M3.5	103 km	8 km
Jan 17, 2016	17 km NNE of Snyder, Texas	M3.5	111 km	2 km

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

Tornado History

469 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 23 fatalities, 85 injuries.

Date	Rating	Distance	Path	Fatalities
Apr 2, 1980	EF4	66 km	8.4 mi	0
May 26, 1962	EF4	24 km	10.7 mi	0
May 1, 1954	EF4	68 km	68.6 mi	0
Mar 13, 1953	EF4	15 km	13.9 mi	17
May 2, 2024	EF3	84 km	3.3 mi	0
May 4, 2022	EF3	65 km	23.1 mi	0
Apr 27, 2021	EF3	42 km	8.4 mi	0
May 13, 2005	EF3	34 km	16.3 mi	0
Apr 30, 2000	EF3	100 km	13.0 mi	0
May 29, 1994	EF3	95 km	7.0 mi	0
Apr 24, 1991	EF3	27 km	3.5 mi	0
May 14, 1990	EF3	56 km	0.2 mi	0
Apr 21, 1985	EF3	80 km	4.5 mi	3
May 16, 1982	EF3	74 km	15.0 mi	0
May 26, 1976	EF3	97 km	1.0 mi	0
May 25, 1976	EF3	91 km	20.3 mi	0
Apr 17, 1976	EF3	63 km	14.7 mi	0
May 16, 1968	EF3	95 km	2.0 mi	0
May 25, 1962	EF3	63 km	4.1 mi	1
Sep 3, 1961	EF3	1 km	0.7 mi	0

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

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: BIG COUNTRY FIRE (209,352 acres, 1988).

Year	Name	Acres Burned	Distance
1988	BIG COUNTRY FIRE	209,352	87 km
2011	COOPER MOUNTAIN RANCH	157,855	90 km
2011	SWENSON	136,789	31 km
2011	DICKENS COUNTY COMPLEX	90,808	73 km
2008	EIGHTY-TWO FIRE	31,611	29 km
2001	UNNAMED	28,633	42 km
2022	COCONUT	27,963	73 km
1996	PITCHFORK FIRE	27,222	66 km
1996	TRIANGLE FIRE	25,553	77 km
2021	BUCK	18,671	60 km
1994	KING COUNTY FIRE	16,759	42 km
2022	SMOKE STACK LIGHTNING	14,602	35 km
2019	VIVIAN	11,825	80 km
2009	BLACK	11,356	88 km
2011	MILLER CREEK	10,888	45 km
1997	THROCKMORTON	10,339	52 km
2011	ROCK CREEK	10,128	31 km
2003	JOHNSON RANCH	9,696	86 km
2011	JRM	8,870	78 km
2019	BIRD RANCH	8,409	91 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	45°F (7°C)	0.9 in	Driest
February	46°F (8°C)	1.3 in
March	55°F (13°C)	1.5 in
April	63°F (17°C)	1.9 in
May	72°F (22°C)	3.5 in	Wettest
June	80°F (27°C)	3.1 in
July	85°F (29°C)	1.8 in	Warmest
August	83°F (28°C)	2.4 in
September	75°F (24°C)	3.5 in
October	65°F (18°C)	2.6 in
November	52°F (11°C)	1.2 in
December	44°F (7°C)	0.9 in	Coldest

O'Brien has a seasonal temperature swing of 41°F / from 44°F in December to 85°F in July. Total annual precipitation is 24.6 inches, with May being the wettest month (3.5") and January the driest (0.9").

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