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Weather & Climate in Rockdale, TX
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Rockdale enjoys a temperate climate with an average annual temperature of 68°F (20°C). Winters average 49°F in January while summers reach 84°F in July. The area gets 303 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 35.2 inches. Air quality is rated Good with a median AQI of 42. The city sits at an elevation of 453 feet.
Temperature
49°F Jan (9°C)
84°F Jul (29°C)
| Annual Average | 67.5°F |
| 25% above US avg | |
| January Average | 49°F (9°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 303 days/yr |
Geography
| Elevation | 453 ft (138 m) |
| Area | 4.3 sq mi (11.1 km²) |
| Population Density | 1,272/sq mi |
| Coordinates | 30.6557°N, 97.0085°W |
| Timezone | America/Chicago |
| County | Williamson County County |
| Nearest Airport | H H Coffield Regional (RCK) 2 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 90.1 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 87.9 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Relatively High |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Very High |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Moderate |
| Cold Wave | Relatively High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
6 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.1.
| Feb 19, 2015 | 3 km N of Hallettsville, Texas | M3.1 | 132 km | 5 km |
| Sep 3, 2015 | 7 km NNE of Leander, Texas | M2.9 | 79 km | 5 km |
| Oct 20, 2017 | 5 km W of Flatonia, Texas | M2.9 | 110 km | 3 km |
| Jan 4, 1995 | 1 km NW of Hallettsville, Texas | M2.7 | 134 km | 5 km |
| Aug 24, 2021 | 3 km NNW of Hallettsville, Texas | M2.6 | 132 km | 5 km |
| Apr 2, 2024 | 4 km SSW of Round Top, Texas | M2.5 | 76 km | 17 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 |
| 2024 | Beryl | Category 1 | 92 mph | 179 km |
| 2021 | Nicholas | Category 1 | 75 mph | 242 km |
| 2017 | Harvey | Category 4 | 132 mph | 219 km |
| 2008 | Ike | Category 2 | 109 mph | 168 km |
| 2007 | Humberto | Category 1 | 92 mph | 282 km |
| 2005 | Rita | Category 1 | 75 mph | 279 km |
| 2003 | Claudette | Category 1 | 92 mph | 229 km |
| 1989 | Chantal | Category 1 | 81 mph | 277 km |
| 1989 | Jerry | Category 1 | 86 mph | 252 km |
| 1986 | Bonnie | Category 1 | 86 mph | 273 km |
| 1983 | Alicia | Category 3 | 115 mph | 180 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
471 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 51 fatalities, 369 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 27, 1997 | EF5 | 61 km | 5.1 mi | 27 |
| Mar 10, 1973 | EF4 | 99 km | 23.3 mi | 6 |
| Apr 12, 2022 | EF3 | 79 km | 16.6 mi | 0 |
| Apr 13, 2019 | EF3 | 39 km | 32.5 mi | 0 |
| Mar 10, 2000 | EF3 | 41 km | 21.0 mi | 0 |
| May 27, 1997 | EF3 | 80 km | 3.7 mi | 0 |
| May 27, 1997 | EF3 | 79 km | 9.2 mi | 0 |
| May 27, 1997 | EF3 | 72 km | 1.4 mi | 0 |
| Mar 14, 1990 | EF3 | 66 km | 9.0 mi | 0 |
| May 17, 1989 | EF3 | 60 km | 3.0 mi | 1 |
| Apr 7, 1980 | EF3 | 68 km | 31.7 mi | 1 |
| May 26, 1976 | EF3 | 73 km | 2.0 mi | 2 |
| May 10, 1959 | EF3 | 41 km | 15.8 mi | 0 |
| May 10, 1959 | EF3 | 80 km | 11.0 mi | 0 |
| Apr 24, 1957 | EF3 | 55 km | 14.7 mi | 0 |
| Mar 20, 1957 | EF3 | 38 km | 16.9 mi | 0 |
| Mar 20, 1957 | EF3 | 46 km | 7.2 mi | 0 |
| Apr 5, 1956 | EF3 | 61 km | 5.2 mi | 0 |
| Apr 30, 1954 | EF3 | 50 km | 139.9 mi | 0 |
| Dec 2, 1953 | EF3 | 18 km | 3.3 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
15 wildfires (100+ acres) recorded within 100 km. Largest: BASTROP COUNTY COMPLEX (31,838 acres, 2011).
| Year | Name | Acres Burned | Distance |
| 2011 | BASTROP COUNTY COMPLEX | 31,838 | 62 km |
| 2022 | CRITTENBERG COMPLEX | 21,391 | 95 km |
| 2011 | ROBINETTE | 6,039 | 95 km |
| 2011 | UNNAMED | 5,706 | 91 km |
| 2015 | HIDDEN PINES | 3,807 | 66 km |
| 2009 | OWL CREEK | 2,376 | 98 km |
| 2011 | UNNAMED | 2,236 | 89 km |
| 2011 | LUTHERHILL | 2,215 | 77 km |
| 2006 | BROWNS CREEK RANGE | 1,889 | 97 km |
| 2011 | UNNAMED | 1,581 | 95 km |
| 2008 | BERTRAM | 1,567 | 94 km |
| 2008 | HWY 195 FIRE | 1,523 | 72 km |
| 2009 | UNNAMED | 1,445 | 89 km |
| 2009 | WILDERNESS RIDGE | 1,278 | 68 km |
| 2005 | UNNAMED | 1,140 | 93 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 49°F (9°C) | 2.3 in | Coldest |
| February | 53°F (12°C) | 2.6 in | |
| March | 60°F (16°C) | 2.2 in | |
| April | 67°F (19°C) | 3.0 in | |
| May | 74°F (23°C) | 4.7 in | Wettest |
| June | 80°F (27°C) | 3.7 in | |
| July | 84°F (29°C) | 1.8 in | Warmest, Driest |
| August | 84°F (29°C) | 1.9 in | |
| September | 78°F (26°C) | 4.2 in | |
| October | 69°F (21°C) | 3.6 in | |
| November | 59°F (15°C) | 2.9 in | |
| December | 51°F (11°C) | 2.4 in |
Rockdale has a seasonal temperature swing of 35°F / from 49°F in January to 84°F in July. Total annual precipitation is 35.3 inches, with May being the wettest month (4.7") and July the driest (1.8").