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Weather & Climate in Robert Lee, TX
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Robert Lee enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 44°F in January while summers reach 84°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 21.4 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 1,830 feet.
Temperature
44°F Jan (7°C)
84°F Jul (29°C)
| Annual Average | 64.4°F |
| 19% above US avg | |
| January Average | 44°F (7°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 328 days/yr |
Geography
| Elevation | 1,830 ft (558 m) |
| Area | 1.2 sq mi (3.0 km²) |
| Population Density | 906/sq mi |
| Coordinates | 31.8957°N, 100.4850°W |
| Timezone | America/Chicago |
| County | Coke County County |
| Nearest Airport | San Angelo Regional/Mathis Field (SJT) 37 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 3.7 / 100 |
| Social Vulnerability | 57.0 / 100 |
| Community Resilience | 28.3 / 100 |
Hazard Breakdown
| Tornado | Very 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 Low |
| Cold Wave | Very Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
340 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 | 98 km | 3 km |
| Jul 23, 2024 | 17 km NNE of Hermleigh, Texas | M4.9 | 98 km | 3 km |
| Feb 28, 2025 | 26 km SW of Ackerly, Texas | M4.8 | 146 km | 7 km |
| Feb 16, 2023 | 15 km NE of Hermleigh, Texas | M4.7 | 96 km | 8 km |
| Jul 27, 2024 | 13 km NNE of Hermleigh, Texas | M4.5 | 96 km | 3 km |
| Jul 23, 2024 | 16 km NNE of Hermleigh, Texas | M4.4 | 98 km | 3 km |
| Apr 10, 2024 | 21 km N of Stanton, Texas | M4.4 | 134 km | 5 km |
| Sep 11, 2011 | 20 km NE of Snyder, Texas | M4.3 | 109 km | 5 km |
| Jul 25, 2024 | 16 km NNE of Hermleigh, Texas | M4.0 | 99 km | 3 km |
| Sep 22, 2023 | 8 km NE of Hermleigh, Texas | M3.9 | 90 km | 7 km |
| Jun 6, 2022 | 18 km SE of Ackerly, Texas | M3.9 | 118 km | 7 km |
| Aug 17, 2022 | 17 km NNE of Hermleigh, Texas | M3.8 | 98 km | 6 km |
| Aug 15, 2024 | 28 km SW of Garden City, Texas | M3.8 | 117 km | 8 km |
| Jul 30, 2024 | 15 km NE of Hermleigh, Texas | M3.8 | 96 km | 8 km |
| Mar 13, 2011 | 32 km WNW of Rotan, Texas | M3.8 | 125 km | 5 km |
| Apr 10, 2023 | 20 km NW of Stanton, Texas | M3.7 | 142 km | 6 km |
| Jul 20, 2025 | 14 km NE of Hermleigh, Texas | M3.7 | 95 km | 6 km |
| Aug 10, 2024 | 28 km SW of Garden City, Texas | M3.6 | 118 km | 6 km |
| Jun 16, 2022 | 16 km SSE of Ackerly, Texas | M3.6 | 122 km | 8 km |
| Aug 14, 2024 | 16 km NNE of Hermleigh, Texas | M3.6 | 100 km | 4 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
476 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 19 fatalities, 330 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 11, 1953 | EF4 | 42 km | 9.9 mi | 13 |
| May 22, 2024 | EF3 | 68 km | 4.8 mi | 0 |
| May 3, 2024 | EF3 | 7 km | 3.5 mi | 0 |
| May 2, 2024 | EF3 | 100 km | 3.3 mi | 0 |
| May 18, 2019 | EF3 | 56 km | 18.0 mi | 0 |
| May 18, 2019 | EF3 | 84 km | 7.8 mi | 0 |
| May 18, 2019 | EF3 | 67 km | 5.8 mi | 0 |
| May 22, 2016 | EF3 | 98 km | 3.7 mi | 0 |
| May 14, 1995 | EF3 | 57 km | 5.0 mi | 0 |
| Apr 19, 1986 | EF3 | 62 km | 4.5 mi | 1 |
| Mar 14, 1982 | EF3 | 32 km | 40.5 mi | 0 |
| Apr 10, 1979 | EF3 | 73 km | 25.0 mi | 0 |
| Apr 15, 1976 | EF3 | 39 km | 9.9 mi | 0 |
| May 13, 1975 | EF3 | 100 km | 0.1 mi | 2 |
| May 24, 1968 | EF3 | 84 km | 2.7 mi | 0 |
| May 24, 1968 | EF3 | 86 km | 2.0 mi | 0 |
| May 24, 1968 | EF3 | 82 km | 4.1 mi | 0 |
| May 15, 1965 | EF3 | 94 km | 9.3 mi | 0 |
| May 31, 1962 | EF3 | 99 km | 2.0 mi | 0 |
| Apr 30, 1952 | EF3 | 50 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: GLASS (196,945 acres, 2008).
| Year | Name | Acres Burned | Distance |
| 2008 | GLASS | 196,945 | 67 km |
| 2011 | WILDCAT | 150,157 | 19 km |
| 2011 | WHITE HAT | 71,857 | 31 km |
| 2006 | COLE | 39,436 | 47 km |
| 2006 | ROCKER B | 37,361 | 82 km |
| 2011 | DOS AMIGOS | 18,960 | 29 km |
| 2008 | SILVER | 18,094 | 23 km |
| 2011 | 611 GAS PLANT | 14,430 | 82 km |
| 2012 | WILDCAT | 14,034 | 15 km |
| 2011 | ENCINO | 12,156 | 47 km |
| 2011 | MITCHELL COUNTY COMPLEX | 11,350 | 70 km |
| 2022 | MESQUITE HEAT | 10,807 | 70 km |
| 2011 | SCOTT RANCH | 10,755 | 88 km |
| 2022 | CREWS GAP | 8,134 | 74 km |
| 2011 | CLAY | 6,770 | 85 km |
| 2011 | SHEPERDS COMPLEX | 6,496 | 91 km |
| 2008 | SNYDER COMPLEX | 5,796 | 97 km |
| 2019 | 7D | 5,402 | 73 km |
| 2020 | 7D2 | 5,253 | 78 km |
| 2015 | HEAD OF THE RIVER RANCH | 5,205 | 88 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (7°C) | 0.8 in | Coldest, Driest |
| February | 49°F (9°C) | 1.1 in | |
| March | 56°F (14°C) | 1.1 in | |
| April | 65°F (18°C) | 1.9 in | |
| May | 73°F (23°C) | 3.2 in | |
| June | 80°F (26°C) | 2.9 in | |
| July | 84°F (29°C) | 1.7 in | Warmest |
| August | 82°F (28°C) | 2.2 in | |
| September | 75°F (24°C) | 3.7 in | Wettest |
| October | 65°F (19°C) | 2.7 in | |
| November | 54°F (12°C) | 1.2 in | |
| December | 46°F (8°C) | 0.9 in |
Robert Lee has a seasonal temperature swing of 40°F / from 44°F in January to 84°F in July. Total annual precipitation is 23.3 inches, with September being the wettest month (3.7") and January the driest (0.8").