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Weather & Climate in Grandfalls, TX
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Grandfalls enjoys a temperate climate with an average annual temperature of 65°F (18°C). Winters average 44°F in January while summers reach 84°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 13.7 inches (drier than the 38-inch national average). The area receives 1.4 inches of snow annually. Air quality is rated Good with a median AQI of 42. The city sits at an elevation of 2,434 feet.
Temperature
44°F Jan (7°C)
84°F Jul (29°C)
| Annual Average | 65.0°F |
| 20% above US avg | |
| January Average | 44°F (7°C) |
| July Average | 84°F (29°C) |
| Sunny Days | 330 days/yr |
Geography
| Elevation | 2,434 ft (742 m) |
| Area | 0.5 sq mi (1.4 km²) |
| Population Density | 596/sq mi |
| Coordinates | 31.3405°N, 102.8545°W |
| Timezone | America/Chicago |
| County | Crane County County |
| Nearest Airport | Midland International Air And Space Port (MAF) 57 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 1.2 / 100 |
| Social Vulnerability | 80.3 / 100 |
| Community Resilience | 7.0 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
1,702 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.7.
| Apr 14, 1995 | 13 km NW of Marathon, Texas | M5.7 | 126 km | 18 km |
| Sep 17, 2024 | 2024 North of Tarzan, Texas Earthquake | M5.1 | 141 km | 6 km |
| Mar 26, 2020 | 41 km W of Mentone, Texas | M5.0 | 120 km | 10 km |
| Feb 15, 2025 | 53 km NW of Toyah, Texas | M5.0 | 131 km | 6 km |
| Feb 28, 2025 | 26 km SW of Ackerly, Texas | M4.8 | 144 km | 7 km |
| Jan 2, 1992 | 12 km SSE of Eunice, New Mexico | M4.6 | 113 km | 5 km |
| Mar 17, 2021 | 57 km S of Whites City, New Mexico | M4.5 | 147 km | 6 km |
| Sep 1, 2022 | 38 km WSW of Mentone, Texas | M4.4 | 112 km | 7 km |
| Jun 25, 2021 | 56 km S of Whites City, New Mexico | M4.4 | 148 km | 6 km |
| Apr 10, 2024 | 21 km N of Stanton, Texas | M4.4 | 147 km | 5 km |
| Jun 1, 2022 | western Texas | M4.3 | 111 km | 10 km |
| Jul 28, 2021 | 54 km NW of Toyah, Texas | M4.3 | 136 km | 6 km |
| Mar 5, 2022 | 57 km S of Whites City, New Mexico | M4.3 | 143 km | 7 km |
| Jul 28, 2022 | 55 km S of Whites City, New Mexico | M4.2 | 150 km | 7 km |
| Feb 13, 2022 | 55 km S of Whites City, New Mexico | M4.2 | 150 km | 7 km |
| Feb 22, 2023 | western Texas | M4.2 | 149 km | 7 km |
| Mar 2, 2025 | 51 km S of Whites City, New Mexico | M4.2 | 141 km | 7 km |
| Jan 9, 2025 | 56 km S of Whites City, New Mexico | M4.2 | 147 km | 6 km |
| Feb 28, 2023 | 37 km NNW of Toyah, Texas | M4.1 | 112 km | 8 km |
| May 28, 2024 | 55 km NW of Toyah, Texas | M4.1 | 132 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
249 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 32 fatalities, 199 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jun 1, 1990 | EF4 | 56 km | 22.0 mi | 2 |
| May 22, 1987 | EF4 | 87 km | 3.0 mi | 30 |
| May 30, 2024 | EF3 | 82 km | 5.3 mi | 0 |
| May 20, 2019 | EF3 | 68 km | 5.8 mi | 0 |
| May 14, 2010 | EF3 | 56 km | 4.3 mi | 0 |
| Apr 19, 1977 | EF3 | 11 km | 4.3 mi | 0 |
| May 15, 1965 | EF3 | 100 km | 1.0 mi | 0 |
| May 30, 2024 | EF2 | 88 km | 10.3 mi | 0 |
| May 4, 2024 | EF2 | 65 km | 6.4 mi | 0 |
| May 20, 2019 | EF2 | 92 km | 6.6 mi | 0 |
| Mar 18, 2012 | EF2 | 91 km | 1.0 mi | 0 |
| May 23, 2010 | EF2 | 66 km | 4.0 mi | 0 |
| Apr 30, 1999 | EF2 | 92 km | 6.0 mi | 0 |
| Apr 30, 1999 | EF2 | 94 km | 1.0 mi | 0 |
| May 22, 1992 | EF2 | 100 km | 5.0 mi | 0 |
| Apr 15, 1990 | EF2 | 49 km | 3.5 mi | 0 |
| May 25, 1987 | EF2 | 24 km | 11.0 mi | 0 |
| Oct 15, 1981 | EF2 | 57 km | 1.5 mi | 0 |
| Jun 30, 1977 | EF2 | 24 km | 0.5 mi | 0 |
| Apr 26, 1974 | EF2 | 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: FRYING PAN RANCH (106,253 acres, 2011).
| Year | Name | Acres Burned | Distance |
| 2011 | FRYING PAN RANCH | 106,253 | 99 km |
| 2008 | HUCKABEE | 84,897 | 89 km |
| 2011 | PLEASANT FARMS | 15,516 | 52 km |
| 2011 | HICKMAN | 14,828 | 88 km |
| 2008 | ELLISON | 11,140 | 13 km |
| 1994 | UNNAMED | 8,266 | 87 km |
| 2011 | DHI | 7,149 | 80 km |
| 1987 | UNNAMED | 6,788 | 96 km |
| 2008 | GRAND FALLS | 5,851 | 6 km |
| 2011 | SAND RANCH | 5,839 | 97 km |
| 2011 | CEED FIRE | 5,744 | 94 km |
| 2008 | UNNAMED | 5,516 | 13 km |
| 2011 | PINON FIRE | 4,372 | 92 km |
| 2009 | CRIDER RANCH | 4,056 | 40 km |
| 2008 | TUBBS CORNER | 3,404 | 17 km |
| 1989 | UNNAMED | 3,292 | 93 km |
| 2011 | BATES FIELD FIRE | 3,186 | 75 km |
| 2010 | 304 | 2,918 | 16 km |
| 2006 | CRANE | 2,857 | 45 km |
| 2008 | CRANE | 2,831 | 39 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 44°F (7°C) | 0.4 in | Coldest, Driest |
| February | 49°F (9°C) | 0.6 in | |
| March | 57°F (14°C) | 0.4 in | |
| April | 65°F (18°C) | 0.7 in | |
| May | 73°F (23°C) | 1.5 in | |
| June | 81°F (27°C) | 1.4 in | |
| July | 84°F (29°C) | 1.2 in | Warmest |
| August | 82°F (28°C) | 1.4 in | |
| September | 77°F (25°C) | 2.3 in | Wettest |
| October | 67°F (19°C) | 1.3 in | |
| November | 55°F (13°C) | 0.6 in | |
| December | 46°F (8°C) | 0.5 in |
Grandfalls has a seasonal temperature swing of 39°F / from 44°F in January to 84°F in July. Total annual precipitation is 12.0 inches, with September being the wettest month (2.3") and January the driest (0.4").