Weather & Climate in Granjeno, TX

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

Granjeno has a warm climate with an average annual temperature of 77°F (25°C). Winters average 63°F in January while summers reach 89°F in July. The area gets 312 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 22.2 inches (drier than the 38-inch national average). Air quality is rated Good with a median AQI of 42. The city sits at an elevation of 107 feet.

Temperature

63°F Jan (17°C) 89°F Jul (31°C)

Annual Average	77.4°F
	43% above US avg
January Average	63°F (17°C)
July Average	89°F (31°C)
Sunny Days	312 days/yr

Geography

Elevation	107 ft (33 m)
Area	0.4 sq mi (0.9 km²)
Population Density	1,087/sq mi
Coordinates	26.1371°N, 98.3034°W
Timezone	America/Chicago
County	Hidalgo County County
Nearest Airport	Mc Allen International (MFE) 8 miles away

Precipitation & Snow

Annual Rainfall 22.2"

42% below US avg

Wettest Month (Sep) 3.94"

Driest Month (Mar) 0.59"

Air Quality

AQI Median	42.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively High
Risk Score	99.0 / 100
Social Vulnerability	92.7 / 100
Community Resilience	0.9 / 100

Hazard Breakdown

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

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

Earthquake History

11 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.4.

Jun 14, 2009	35 km E of Ciudad General Terán, Mexico	M4.4	140 km	18 km
Mar 18, 2014	18 km E of Pueblo Nuevo, Mexico	M4.1	148 km	1 km
Jan 19, 2014	12 km SSW of China, Mexico	M4.1	116 km	12 km
Feb 11, 2014	31 km SSE of China, Mexico	M4.0	114 km	41 km
Mar 4, 2014	27 km SE of Los Ramones, Mexico	M4.0	134 km	5 km
Nov 25, 2013	23 km SE of Los Ramones, Mexico	M4.0	137 km	10 km
Mar 2, 2014	15 km SW of China, Mexico	M4.0	120 km	8 km
Nov 30, 2013	26 km SE of Los Ramones, Mexico	M3.9	136 km	2 km
Mar 5, 2014	18 km SSW of China, Mexico	M3.9	118 km	10 km
Nov 26, 2013	22 km S of China, Mexico	M3.6	117 km	37 km
Aug 30, 2016	11 km N of Los Ramones, Mexico	M3.6	139 km	38 km

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

Hurricane History

11 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.

Year	Name	Category	Max Wind	Closest
2021	Nicholas	Category 1	75 mph	294 km
2020	Hanna	Category 1	92 mph	60 km
2017	Harvey	Category 4	132 mph	226 km
2010	Alex	Category 2	109 mph	219 km
2008	Dolly	Category 2	98 mph	64 km
2005	Emily	Category 3	127 mph	133 km
2003	Erika	Category 1	75 mph	126 km
1999	Bret	Category 4	144 mph	104 km
1988	Gilbert	Category 4	132 mph	178 km
1983	Barry	Category 1	81 mph	115 km
1980	Allen	Category 5	161 mph	66 km

Source: NOAA IBTrACS (Category 1+, 1980–2026).

Tornado History

119 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 28 injuries.

Date	Rating	Distance	Path	Fatalities
Mar 15, 1983	EF3	10 km	6.1 mi	0
May 12, 1969	EF3	70 km	0.1 mi	0
May 12, 1969	EF3	63 km	0.1 mi	0
Apr 19, 1965	EF3	63 km	1.5 mi	0
May 5, 1991	EF2	46 km	1.0 mi	0
Aug 9, 1980	EF2	78 km	4.6 mi	0
May 24, 1970	EF2	67 km	25.5 mi	0
May 12, 1969	EF2	87 km	0.1 mi	0
Apr 26, 1967	EF2	18 km	40.2 mi	0
Jun 1, 1962	EF2	64 km	1.0 mi	0
Jan 26, 1950	EF2	85 km	4.7 mi	0
Oct 30, 2015	EF1	68 km	0.7 mi	0
Jun 30, 2011	EF1	11 km	0.4 mi	0
Jul 16, 2007	EF1	10 km	1.0 mi	0
Apr 30, 2003	EF1	18 km	0.3 mi	0
May 21, 2001	EF1	11 km	0.1 mi	0
May 21, 2001	EF1	9 km	0.2 mi	0
Apr 4, 1997	EF1	85 km	0.5 mi	0
Jun 14, 1994	EF1	39 km	0.5 mi	0
Sep 16, 1988	EF1	60 km	0.5 mi	0

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

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: BURNS RANCH FIRE (58,395 acres, 2008).

Year	Name	Acres Burned	Distance
2008	BURNS RANCH FIRE	58,395	63 km
2022	HAYFIELD SOUTH	11,038	93 km
2021	KING	9,793	88 km
2022	VIB	7,817	91 km
2022	POLO	5,571	95 km
2008	ENCINO	3,979	85 km
2021	NORTH JONES	3,541	99 km
2008	UNNAMED	3,389	87 km
2011	KING RANCH	3,075	83 km
2008	JONES RANCH	2,998	90 km
2005	2686	2,979	89 km
2009	SAN CARLOS	2,849	100 km
2021	JONES	2,178	92 km
2010	ENCINITOS RANCH	1,967	70 km
2022	755	1,846	88 km
2011	ENCINITOS	1,748	72 km
2009	STILLMAN	1,466	71 km
2023	ELECTRIC SLIDE	1,410	89 km
2008	SAN RAFAEL RANCH	1,407	79 km
2005	BORREGO	1,392	87 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	63°F (17°C)	1.5 in
February	62°F (17°C)	1.2 in
March	70°F (21°C)	0.6 in	Driest
April	76°F (24°C)	1.4 in
May	80°F (27°C)	2.9 in
June	84°F (29°C)	2.7 in
July	89°F (31°C)	1.9 in	Warmest
August	86°F (30°C)	2.4 in
September	82°F (28°C)	3.9 in	Wettest
October	75°F (24°C)	2.2 in
November	68°F (20°C)	1.0 in
December	61°F (16°C)	1.1 in	Coldest

Granjeno has a seasonal temperature swing of 28°F / from 61°F in December to 89°F in July. Total annual precipitation is 22.8 inches, with September being the wettest month (3.9") and March the driest (0.6").

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