Weather & Climate in Mont Belvieu, TX

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

Mont Belvieu enjoys a temperate climate with an average annual temperature of 69°F (20°C). Winters average 52°F in January while summers reach 83°F in July. The area gets 317 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 64.7 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 42. The city sits at an elevation of 37 feet.

Temperature

52°F Jan (11°C) 83°F Jul (28°C)

Annual Average	68.7°F
	27% above US avg
January Average	52°F (11°C)
July Average	83°F (28°C)
Sunny Days	317 days/yr

Geography

Elevation	37 ft (11 m)
Area	15.3 sq mi (39.7 km²)
Population Density	473/sq mi
Coordinates	29.8519°N, 94.8683°W
Timezone	America/Chicago
County	Chambers County County
Nearest Airport	William P Hobby (HOU) 28 miles away

Precipitation & Snow

Annual Rainfall 64.7"

70% above US avg

Snowfall 0.0"

Wettest Month (Jun) 6.30"

Driest Month (Mar) 3.19"

Air Quality

AQI Median	42.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively Low
Risk Score	51.8 / 100
Social Vulnerability	10.6 / 100
Community Resilience	97.3 / 100

Hazard Breakdown

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

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

Hurricane History

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

Year	Name	Category	Max Wind	Closest
2024	Francine	Category 2	98 mph	295 km
2024	Beryl	Category 1	92 mph	126 km
2021	Nicholas	Category 1	75 mph	142 km
2020	Laura	Category 4	150 mph	151 km
2020	Delta	Category 3	115 mph	155 km
2019	Barry	Category 1	75 mph	259 km
2017	Harvey	Category 4	132 mph	268 km
2008	Ike	Category 2	109 mph	17 km
2008	Gustav	Category 1	—	290 km
2007	Humberto	Category 1	92 mph	60 km
2005	Rita	Category 4	127 mph	103 km
2003	Claudette	Category 1	92 mph	183 km
2002	Lili	Category 2	92 mph	248 km
1989	Jerry	Category 1	86 mph	74 km
1989	Chantal	Category 1	81 mph	53 km
1986	Bonnie	Category 1	86 mph	55 km
1985	Juan	Category 1	86 mph	191 km
1985	Danny	Category 1	92 mph	210 km
1983	Alicia	Category 3	115 mph	63 km

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

Tornado History

804 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 30 fatalities, 881 injuries.

Date	Rating	Distance	Path	Fatalities
Nov 21, 1992	EF4	42 km	30.0 mi	0
Sep 12, 1961	EF4	60 km	1.0 mi	8
Dec 28, 2024	EF3	28 km	67.9 mi	0
Dec 28, 2024	EF3	56 km	10.3 mi	0
Jan 24, 2023	EF3	47 km	23.3 mi	0
Mar 30, 2002	EF3	30 km	0.7 mi	0
Jan 1, 1999	EF3	44 km	5.5 mi	0
Nov 21, 1992	EF3	28 km	32.0 mi	0
Feb 5, 1986	EF3	69 km	5.0 mi	2
Jan 31, 1983	EF3	71 km	1.0 mi	0
Dec 13, 1977	EF3	41 km	25.1 mi	1
Mar 8, 1976	EF3	76 km	12.7 mi	0
Oct 28, 1974	EF3	22 km	3.3 mi	1
Oct 28, 1974	EF3	54 km	9.6 mi	1
Sep 13, 1974	EF3	90 km	3.6 mi	0
Oct 11, 1970	EF3	96 km	4.3 mi	0
Sep 8, 1969	EF3	38 km	0.8 mi	0
May 27, 1969	EF3	18 km	1.5 mi	3
Mar 23, 1969	EF3	55 km	0.5 mi	0
Dec 12, 1968	EF3	75 km	6.2 mi	0

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

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: 08 UNIT 1 RX (16,981 acres, 2007).

Year	Name	Acres Burned	Distance
2007	08 UNIT 1 RX	16,981	64 km
2010	MCR UNIT 2 RX	14,471	70 km
2000	E WHITES 2	13,996	68 km
2012	WF HOLIDAY 1-2	13,251	69 km
2005	RX UNIT 12 1117 2005	10,728	69 km
1997	WILD COW BAY	10,069	79 km
2020	TXMCR-FY20-RX-W	10,033	77 km
2023	H AND H COMPLEX	9,476	76 km
1992	UNNAMED	9,344	70 km
2003	UNIT 8 WILDFIRE	9,076	78 km
1986	STAR LAKE	8,876	68 km
2015	WF UNIT 1 1/2	8,840	68 km
1997	GRIT ROAD	8,599	77 km
1989	UNNAMED	8,539	61 km
1994	UNIT1ARSON	8,287	65 km
1997	MCF WEST	7,786	70 km
1993	UNNAMED	7,714	61 km
2017	WF PERKINS BLOWOUT	7,646	69 km
2003	UNNAMED	7,414	99 km
2011	PIPELINE	7,167	91 km

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

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	52°F (11°C)	4.2 in	Coldest
February	55°F (13°C)	3.3 in
March	62°F (17°C)	3.2 in	Driest
April	68°F (20°C)	3.5 in
May	75°F (24°C)	5.1 in
June	81°F (27°C)	6.3 in	Wettest
July	83°F (28°C)	4.3 in	Warmest
August	83°F (28°C)	3.9 in
September	79°F (26°C)	5.9 in
October	70°F (21°C)	4.6 in
November	61°F (16°C)	4.8 in
December	54°F (12°C)	4.3 in

Mont Belvieu has a seasonal temperature swing of 31°F / from 52°F in January to 83°F in July. Total annual precipitation is 53.3 inches, with June being the wettest month (6.3") and March the driest (3.2").

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