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Weather & Climate in Markham, TX
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Markham has a warm climate with an average annual temperature of 72°F (22°C). Winters average 56°F in January while summers reach 85°F in July. The area gets 330 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 43.1 inches. Air quality is rated Good with a median AQI of 42. The city sits at an elevation of 52 feet.
Temperature
56°F Jan (13°C)
85°F Jul (30°C)
| Annual Average | 71.8°F |
| 33% above US avg | |
| January Average | 56°F (13°C) |
| July Average | 85°F (30°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 52 ft (16 m) |
| Area | 2.3 sq mi (5.9 km²) |
| Population Density | 463/sq mi |
| Coordinates | 28.9625°N, 96.0640°W |
| Timezone | America/Chicago |
| County | Matagorda County County |
| Nearest Airport | Bay City Regional (BBC) 12 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 80.3 / 100 |
| Social Vulnerability | 72.7 / 100 |
| Community Resilience | 55.9 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively High |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
| Coastal Flood | Relatively Moderate |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
24 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.2.
| Feb 7, 2021 | 8 km ESE of Smiley, Texas | M3.2 | 148 km | 6 km |
| Feb 19, 2015 | 3 km N of Hallettsville, Texas | M3.1 | 102 km | 5 km |
| May 12, 2019 | 18 km N of Yorktown, Texas | M3.1 | 138 km | 5 km |
| Mar 4, 2019 | 11 km SE of Cuero, Texas | M3.0 | 111 km | 5 km |
| Feb 3, 2019 | 13 km ESE of Smiley, Texas | M3.0 | 144 km | 5 km |
| Jan 1, 2024 | 18 km S of Gonzales, Texas | M3.0 | 140 km | 3 km |
| Oct 20, 2017 | 5 km W of Flatonia, Texas | M2.9 | 133 km | 3 km |
| Aug 19, 2022 | 11 km E of Smiley, Texas | M2.9 | 146 km | 7 km |
| May 17, 2019 | 12 km ESE of Smiley, Texas | M2.9 | 144 km | 7 km |
| May 14, 2017 | 16 km NNW of Yorktown, Texas | M2.8 | 145 km | 2 km |
| Jun 16, 2022 | 17 km E of Smiley, Texas | M2.8 | 140 km | 7 km |
| Jan 4, 1995 | 1 km NW of Hallettsville, Texas | M2.7 | 102 km | 5 km |
| Jul 22, 2023 | 13 km ENE of Smiley, Texas | M2.6 | 144 km | 7 km |
| Aug 24, 2021 | 3 km NNW of Hallettsville, Texas | M2.6 | 103 km | 5 km |
| Jul 12, 2022 | 8 km WNW of Yorktown, Texas | M2.6 | 149 km | 4 km |
| Jul 12, 2022 | 8 km WNW of Yorktown, Texas | M2.6 | 148 km | 5 km |
| Apr 2, 2024 | 4 km SSW of Round Top, Texas | M2.5 | 133 km | 17 km |
| May 5, 2019 | 14 km ESE of Smiley, Texas | M2.5 | 143 km | 7 km |
| May 15, 2019 | 12 km ESE of Smiley, Texas | M2.5 | 144 km | 7 km |
| May 15, 2019 | 10 km SE of Smiley, Texas | M2.5 | 148 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
16 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 4.
| Year | Name | Category | Max Wind | Closest |
| 2024 | Beryl | Category 1 | 92 mph | 30 km |
| 2021 | Nicholas | Category 1 | 75 mph | 40 km |
| 2020 | Laura | Category 4 | 150 mph | 279 km |
| 2020 | Delta | Category 3 | 121 mph | 241 km |
| 2020 | Hanna | Category 1 | 92 mph | 207 km |
| 2017 | Harvey | Category 4 | 132 mph | 122 km |
| 2008 | Ike | Category 2 | 109 mph | 138 km |
| 2007 | Humberto | Category 1 | 92 mph | 145 km |
| 2005 | Rita | Category 3 | 121 mph | 243 km |
| 2003 | Claudette | Category 1 | 92 mph | 74 km |
| 1999 | Bret | Category 4 | 138 mph | 261 km |
| 1989 | Chantal | Category 1 | 81 mph | 176 km |
| 1989 | Jerry | Category 1 | 86 mph | 105 km |
| 1986 | Bonnie | Category 1 | 86 mph | 194 km |
| 1985 | Juan | Category 1 | 86 mph | 300 km |
| 1983 | Alicia | Category 3 | 115 mph | 89 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
447 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 9 fatalities, 254 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Mar 8, 1976 | EF3 | 76 km | 12.7 mi | 0 |
| Dec 24, 1975 | EF3 | 43 km | 1.0 mi | 0 |
| Sep 13, 1974 | EF3 | 75 km | 3.6 mi | 0 |
| Apr 11, 1969 | EF3 | 44 km | 2.0 mi | 0 |
| Nov 5, 1968 | EF3 | 93 km | 14.4 mi | 0 |
| Sep 20, 1967 | EF3 | 97 km | 19.9 mi | 0 |
| Sep 20, 1967 | EF3 | 97 km | 19.9 mi | 0 |
| Sep 20, 1967 | EF3 | 94 km | 2.0 mi | 0 |
| Sep 20, 1967 | EF3 | 33 km | 1.0 mi | 4 |
| Sep 20, 1967 | EF3 | 46 km | 0.1 mi | 0 |
| Apr 18, 1966 | EF3 | 61 km | 2.0 mi | 0 |
| Mar 28, 1966 | EF3 | 60 km | 9.3 mi | 0 |
| Feb 9, 1966 | EF3 | 59 km | 2.0 mi | 0 |
| Apr 19, 1965 | EF3 | 55 km | 0.2 mi | 1 |
| Nov 22, 1961 | EF3 | 49 km | 2.0 mi | 0 |
| Dec 28, 2024 | EF2 | 82 km | 8.9 mi | 1 |
| Feb 14, 2017 | EF2 | 73 km | 0.7 mi | 0 |
| Mar 31, 2007 | EF2 | 92 km | 0.4 mi | 0 |
| Nov 17, 2003 | EF2 | 88 km | 1.0 mi | 0 |
| Nov 17, 2003 | EF2 | 84 km | 1.5 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: MATAGORDA B5 (7,817 acres, 2012).
| Year | Name | Acres Burned | Distance |
| 2012 | MATAGORDA B5 | 7,817 | 85 km |
| 2017 | TXTMR FY17 RX WHARTON | 5,175 | 88 km |
| 2010 | WHARTON | 5,084 | 88 km |
| 2008 | COW TRAP 2008 | 4,335 | 51 km |
| 2017 | 2018 NORTH SARGENT WF | 3,959 | 46 km |
| 2009 | CHOCOLATE BAYOU UNIT | 3,790 | 87 km |
| 2020 | CHOCOLATE BAYOU | 3,623 | 87 km |
| 1997 | MOUND | 3,402 | 84 km |
| 2009 | ROAD PASTURE 2009 | 3,197 | 50 km |
| 2006 | UNNAMED | 3,162 | 86 km |
| 2011 | BAILEY | 3,136 | 97 km |
| 1992 | SMITH MARSH | 3,057 | 50 km |
| 2006 | CATTAILS | 3,046 | 50 km |
| 2008 | 2009 MI B 7 | 2,608 | 99 km |
| 2007 | UNNAMED | 2,537 | 78 km |
| 2023 | TXBRR-FY23-RX-W | 2,511 | 80 km |
| 2017 | TXTMR FY17 RX BLUESTEM | 2,462 | 79 km |
| 2009 | DOLPHIN | 2,457 | 92 km |
| 2019 | TXTMR-FY19-RX-ALLIGATOR MARSH | 2,435 | 80 km |
| 2010 | 2010 G 6 | 2,423 | 83 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 56°F (13°C) | 3.4 in | Coldest |
| February | 56°F (14°C) | 2.7 in | |
| March | 63°F (17°C) | 2.4 in | Driest |
| April | 69°F (21°C) | 2.7 in | |
| May | 76°F (24°C) | 4.8 in | |
| June | 81°F (27°C) | 4.7 in | |
| July | 85°F (30°C) | 4.0 in | Warmest |
| August | 83°F (28°C) | 3.7 in | |
| September | 80°F (26°C) | 6.3 in | Wettest |
| October | 72°F (22°C) | 4.3 in | |
| November | 63°F (17°C) | 3.7 in | |
| December | 56°F (13°C) | 3.0 in |
Markham has a seasonal temperature swing of 30°F / from 56°F in January to 85°F in July. Total annual precipitation is 45.5 inches, with September being the wettest month (6.3") and March the driest (2.4").