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Weather & Climate in Sun Valley, TX
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Sun Valley enjoys a temperate climate with an average annual temperature of 63°F (17°C). Winters average 43°F in January while summers reach 82°F in July. The area gets 308 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 49.4 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 42. The city sits at an elevation of 558 feet.
Temperature
43°F Jan (6°C)
82°F Jul (28°C)
| Annual Average | 63.0°F |
| 17% above US avg | |
| January Average | 43°F (6°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 308 days/yr |
Geography
| Elevation | 558 ft (170 m) |
| Area | 0.1 sq mi (0.4 km²) |
| Population Density | 169/sq mi |
| Coordinates | 33.6706°N, 95.4287°W |
| Timezone | America/Chicago |
| County | Lamar County County |
| Nearest Airport | Mount Pleasant Regional (MPS) 48 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 79.6 / 100 |
| Social Vulnerability | 72.5 / 100 |
| Community Resilience | 44.5 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Relatively High |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively Low |
| Ice Storm | Very High |
| Drought | Relatively Moderate |
| Cold Wave | Relatively High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
55 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.5.
| Sep 6, 1997 | 6 km N of Tupelo, Oklahoma | M4.5 | 144 km | 5 km |
| Apr 3, 2012 | 8 km SSW of Pittsburg, Oklahoma | M4.1 | 115 km | 5 km |
| Apr 28, 2013 | 4 km NNW of Oakland, Oklahoma | M3.5 | 137 km | 5 km |
| Mar 4, 2013 | 5 km S of Tishomingo, Oklahoma | M3.5 | 129 km | 5 km |
| Oct 20, 2002 | 8 km WSW of Lane, Oklahoma | M3.4 | 90 km | 5 km |
| May 31, 1997 | 3 km ESE of Neylandville, Texas | M3.4 | 74 km | 5 km |
| Feb 25, 2009 | 4 km SE of Ashland, Oklahoma | M3.3 | 131 km | 5 km |
| Sep 25, 2010 | 5 km ENE of Madill, Oklahoma | M3.3 | 128 km | 5 km |
| Jun 24, 2013 | 6 km W of Lehigh, Oklahoma | M3.2 | 119 km | 5 km |
| May 27, 2013 | 5 km SSW of Bee, Oklahoma | M3.2 | 116 km | 7 km |
| Apr 15, 2010 | 7 km ENE of Centrahoma, Oklahoma | M3.2 | 132 km | 1 km |
| Oct 1, 2010 | 7 km SE of Stuart, Oklahoma | M3.1 | 143 km | 5 km |
| Feb 3, 2009 | 2 km SSE of Centrahoma, Oklahoma | M3.1 | 132 km | 5 km |
| Aug 29, 2024 | 10 km SW of Lehigh, Oklahoma | M3.1 | 113 km | 25 km |
| May 16, 2014 | Oklahoma | M3.0 | 117 km | 5 km |
| Oct 12, 2013 | 4 km S of Bee, Oklahoma | M3.0 | 116 km | 5 km |
| Jun 30, 2013 | 3 km SE of Bee, Oklahoma | M3.0 | 114 km | 5 km |
| Jun 1, 1995 | 5 km NNE of Ravia, Oklahoma | M3.0 | 138 km | 5 km |
| Apr 15, 2010 | 11 km NNE of Tupelo, Oklahoma | M3.0 | 146 km | 5 km |
| Apr 22, 2005 | 17 km N of Swink, Oklahoma | M3.0 | 61 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
2 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 1.
| Year | Name | Category | Max Wind | Closest |
| 2020 | Laura | Category 2 | 98 mph | 286 km |
| 2008 | Ike | Category 1 | — | 297 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
514 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF5. Total: 29 fatalities, 528 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Apr 2, 1982 | EF5 | 53 km | 53.0 mi | 0 |
| Nov 4, 2022 | EF4 | 25 km | 60.2 mi | 0 |
| Nov 4, 2022 | EF4 | 31 km | 44.7 mi | 0 |
| Apr 2, 1982 | EF4 | 19 km | 23.0 mi | 10 |
| May 13, 1981 | EF4 | 27 km | 8.8 mi | 0 |
| Mar 12, 1971 | EF4 | 90 km | 5.1 mi | 1 |
| May 4, 1960 | EF4 | 46 km | 30.8 mi | 0 |
| Apr 2, 1957 | EF4 | 97 km | 7.9 mi | 3 |
| Nov 4, 2022 | EF3 | 90 km | 15.7 mi | 0 |
| Nov 4, 2022 | EF3 | 92 km | 16.9 mi | 1 |
| Apr 30, 2019 | EF3 | 79 km | 27.6 mi | 2 |
| May 9, 2016 | EF3 | 61 km | 13.8 mi | 0 |
| May 25, 2015 | EF3 | 85 km | 18.8 mi | 1 |
| Apr 9, 2009 | EF3 | 95 km | 37.2 mi | 0 |
| May 4, 1999 | EF3 | 60 km | 71.5 mi | 1 |
| Apr 2, 1982 | EF3 | 37 km | 52.0 mi | 1 |
| Apr 2, 1982 | EF3 | 66 km | 8.0 mi | 0 |
| Apr 2, 1982 | EF3 | 79 km | 32.0 mi | 1 |
| May 3, 1979 | EF3 | 99 km | 7.2 mi | 0 |
| Dec 3, 1973 | EF3 | 100 km | 3.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (10,935 acres, 2005).
| Year | Name | Acres Burned | Distance |
| 2005 | UNNAMED | 10,935 | 95 km |
| 2011 | UNNAMED | 10,444 | 93 km |
| 2007 | BRANTLEY CABIN | 9,666 | 99 km |
| 2005 | PINE SPRINGS | 7,709 | 84 km |
| 2023 | RX CEDAR MTN | 7,175 | 82 km |
| 2006 | MILL CREEK | 6,577 | 87 km |
| 2020 | ASHFORD WELCH | 5,976 | 97 km |
| 2005 | ACHILLE | 4,958 | 90 km |
| 2022 | CARTER CREEK WEST | 4,791 | 79 km |
| 2003 | POPS | 4,475 | 50 km |
| 2016 | UNNAMED | 4,439 | 97 km |
| 2022 | VALLEY X RANCH FIRE | 4,334 | 96 km |
| 2023 | RX MCWA LINSON | 4,068 | 100 km |
| 2022 | N BEE ROUGH RX | 4,052 | 91 km |
| 2017 | UNNAMED | 4,044 | 100 km |
| 2020 | MCWA LINSON | 4,007 | 100 km |
| 2017 | UNNAMED | 3,853 | 91 km |
| 2019 | RX - MCWA WEST | 3,493 | 97 km |
| 2024 | RX HOLLY CREEK | 3,450 | 93 km |
| 2022 | MCWA WEST | 3,441 | 97 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 2.3 in | Coldest, Driest |
| February | 46°F (8°C) | 3.3 in | |
| March | 54°F (12°C) | 4.2 in | |
| April | 62°F (17°C) | 4.0 in | |
| May | 70°F (21°C) | 5.7 in | Wettest |
| June | 77°F (25°C) | 4.1 in | |
| July | 82°F (28°C) | 3.3 in | Warmest |
| August | 82°F (28°C) | 2.4 in | |
| September | 75°F (24°C) | 4.4 in | |
| October | 64°F (18°C) | 4.6 in | |
| November | 53°F (11°C) | 4.2 in | |
| December | 45°F (7°C) | 3.7 in |
Sun Valley has a seasonal temperature swing of 39°F / from 43°F in January to 82°F in July. Total annual precipitation is 46.2 inches, with May being the wettest month (5.7") and January the driest (2.3").