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Weather & Climate in Blanco, TX
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Blanco enjoys a temperate climate with an average annual temperature of 66°F (19°C). Winters average 48°F in January while summers reach 82°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 34.8 inches. Air quality is rated Good with a median AQI of 42. The city sits at an elevation of 1,307 feet.
Temperature
48°F Jan (9°C)
82°F Jul (28°C)
| Annual Average | 65.5°F |
| 21% above US avg | |
| January Average | 48°F (9°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 303 days/yr |
Geography
| Elevation | 1,307 ft (398 m) |
| Area | 2.3 sq mi (5.9 km²) |
| Population Density | 669/sq mi |
| Coordinates | 30.0986°N, 98.4171°W |
| Timezone | America/Chicago |
| County | Blanco County County |
| Nearest Airport | San Antonio International (SAT) 39 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 33.0 / 100 |
| Social Vulnerability | 45.4 / 100 |
| Community Resilience | 52.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Very Low |
| Drought | Relatively Moderate |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
189 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.
| Oct 20, 2011 | 14 km SSW of Falls City, Texas | M4.8 | 141 km | 5 km |
| Jan 30, 2025 | 18 km ENE of Falls City, Texas | M4.6 | 128 km | 7 km |
| Feb 17, 2024 | 3 km SSW of Falls City, Texas | M4.5 | 133 km | 7 km |
| Feb 17, 2024 | 3 km S of Falls City, Texas | M4.3 | 133 km | 8 km |
| Sep 14, 2023 | 16 km ENE of Falls City, Texas | M4.1 | 128 km | 8 km |
| Apr 9, 1993 | 21 km NW of Pawnee, Texas | M4.1 | 146 km | 5 km |
| May 1, 2018 | 4 km SSE of Falls City, Texas | M4.0 | 134 km | 5 km |
| Feb 22, 2024 | 3 km E of Falls City, Texas | M3.9 | 131 km | 8 km |
| Feb 17, 2024 | 3 km S of Falls City, Texas | M3.9 | 133 km | 8 km |
| Apr 7, 2008 | 7 km SSW of Falls City, Texas | M3.9 | 136 km | 5 km |
| Jul 19, 2023 | 19 km E of Pleasanton, Texas | M3.8 | 127 km | 9 km |
| Feb 17, 2024 | 2 km S of Falls City, Texas | M3.7 | 133 km | 8 km |
| Feb 12, 2024 | 3 km S of Falls City, Texas | M3.7 | 133 km | 7 km |
| Jul 20, 1991 | 8 km SSW of Falls City, Texas | M3.6 | 137 km | 10 km |
| Jan 6, 2018 | 17 km SW of Falls City, Texas | M3.6 | 142 km | 5 km |
| Jun 16, 2019 | 5 km SE of Falls City, Texas | M3.6 | 135 km | 5 km |
| Jan 31, 2025 | 19 km ENE of Falls City, Texas | M3.5 | 128 km | 7 km |
| May 2, 2024 | 2 km E of Falls City, Texas | M3.5 | 131 km | 7 km |
| Feb 23, 2024 | 2 km ESE of Falls City, Texas | M3.5 | 131 km | 8 km |
| Feb 9, 2024 | 3 km S of Falls City, Texas | M3.4 | 133 km | 6 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
4 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 | 250 km |
| 2017 | Harvey | Category 4 | 132 mph | 190 km |
| 2003 | Claudette | Category 1 | 92 mph | 222 km |
| 1983 | Alicia | Category 2 | 92 mph | 285 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tornado History
387 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 8 fatalities, 252 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 11, 1999 | EF4 | 92 km | 7.0 mi | 1 |
| May 27, 1997 | EF4 | 49 km | 5.6 mi | 1 |
| Apr 28, 1953 | EF4 | 65 km | 1.0 mi | 2 |
| Oct 12, 2001 | EF3 | 30 km | 2.5 mi | 0 |
| May 11, 1999 | EF3 | 79 km | 3.5 mi | 0 |
| May 27, 1997 | EF3 | 76 km | 9.2 mi | 0 |
| May 13, 1994 | EF3 | 54 km | 3.5 mi | 0 |
| Apr 7, 1980 | EF3 | 83 km | 31.7 mi | 1 |
| Mar 10, 1973 | EF3 | 73 km | 7.8 mi | 0 |
| May 6, 1969 | EF3 | 16 km | 38.9 mi | 0 |
| Sep 20, 1967 | EF3 | 58 km | 5.0 mi | 0 |
| Nov 22, 1961 | EF3 | 81 km | 1.0 mi | 0 |
| May 10, 1959 | EF3 | 70 km | 11.0 mi | 0 |
| Apr 30, 1954 | EF3 | 100 km | 139.9 mi | 0 |
| Dec 1, 1953 | EF3 | 82 km | 5.1 mi | 0 |
| Apr 28, 1953 | EF3 | 62 km | 4.9 mi | 1 |
| Mar 21, 2022 | EF2 | 81 km | 34.6 mi | 0 |
| Mar 21, 2022 | EF2 | 81 km | 7.9 mi | 0 |
| Mar 21, 2022 | EF2 | 92 km | 12.0 mi | 0 |
| Feb 19, 2017 | EF2 | 68 km | 4.6 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: SPICEWOOD (4,239 acres, 2011).
| Year | Name | Acres Burned | Distance |
| 2011 | SPICEWOOD | 4,239 | 45 km |
| 2011 | JAMES RIVER ROAD | 3,918 | 98 km |
| 1984 | STEWAIT | 3,696 | 31 km |
| 2022 | TRAINING AREA 23 | 2,696 | 46 km |
| 2007 | ART | 2,623 | 99 km |
| 2002 | UNNAMED | 2,234 | 41 km |
| 2011 | DOSS | 1,860 | 77 km |
| 2008 | KERR COUNTY COMPLEX | 1,775 | 98 km |
| 2000 | CHEROKEE FIRE | 1,597 | 93 km |
| 2008 | BERTRAM | 1,567 | 87 km |
| 2022 | BUDDY | 1,521 | 29 km |
| 2008 | CR 208 | 1,483 | 99 km |
| 2022 | BIG SKY | 1,403 | 50 km |
| 1996 | UNNAMED | 1,266 | 99 km |
| 2007 | WILLOW CITY | 1,235 | 44 km |
| 2022 | SMOKE RIDER | 1,233 | 19 km |
| 2008 | SANDY 2-148 | 1,144 | 32 km |
| 2022 | DAS GOAT | 1,135 | 82 km |
| 2018 | 308 | 1,102 | 64 km |
| 2006 | PURGATORY | 1,004 | 41 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 48°F (9°C) | 1.8 in | Coldest, Driest |
| February | 52°F (11°C) | 2.1 in | |
| March | 59°F (15°C) | 2.3 in | |
| April | 66°F (19°C) | 2.7 in | |
| May | 73°F (23°C) | 4.6 in | Wettest |
| June | 79°F (26°C) | 4.0 in | |
| July | 82°F (28°C) | 2.1 in | Warmest |
| August | 82°F (28°C) | 2.4 in | |
| September | 76°F (25°C) | 3.6 in | |
| October | 67°F (20°C) | 3.9 in | |
| November | 57°F (14°C) | 2.6 in | |
| December | 50°F (10°C) | 2.0 in |
Blanco has a seasonal temperature swing of 34°F / from 48°F in January to 82°F in July. Total annual precipitation is 34.2 inches, with May being the wettest month (4.6") and January the driest (1.8").