Weather & Climate in Iola, TX
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Iola enjoys a temperate climate with an average annual temperature of 67°F (20°C). Winters average 49°F in January while summers reach 83°F in July. Annual precipitation totals 46.8 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 39. 66% of days have good air quality. The city sits at an elevation of 339 feet.
Temperature
49°F Jan (10°C)
83°F Jul (28°C)
| Annual Average | 67.1°F |
| 24% above US avg | |
| January Average | 49°F (10°C) |
| July Average | 83°F (28°C) |
Geography
| Elevation | 339 ft (103 m) |
| Area | 1.0 sq mi (2.7 km²) |
| Population Density | 278/sq mi |
| Coordinates | 30.7726°N, 96.0776°W |
| Timezone | America/Chicago |
| County | Brazos County County |
| Nearest Airport | Conroe/North Houston Regional (CXO) 49 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
| Good Days % | 65.7% |
| Unhealthy Days | 1 |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 88.4 / 100 |
| Social Vulnerability | 59.9 / 100 |
| Community Resilience | 48.9 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Relatively Moderate |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Very High |
| Ice Storm | Relatively High |
| Drought | Relatively Moderate |
| Cold Wave | Relatively High |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
2 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.5.
| Mar 29, 2025 | 13 km NNE of Wells, Texas | M3.5 | 147 km | 7 km |
| Apr 2, 2024 | 4 km SSW of Round Top, Texas | M2.5 | 103 km | 17 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Hurricane History
12 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 | 164 km |
| 2021 | Nicholas | Category 1 | 75 mph | 222 km |
| 2020 | Laura | Category 4 | 150 mph | 258 km |
| 2017 | Harvey | Category 3 | 121 mph | 259 km |
| 2008 | Ike | Category 2 | 109 mph | 78 km |
| 2007 | Humberto | Category 1 | 92 mph | 215 km |
| 2005 | Rita | Category 3 | 121 mph | 192 km |
| 2003 | Claudette | Category 1 | 92 mph | 254 km |
| 1989 | Chantal | Category 1 | 81 mph | 207 km |
| 1989 | Jerry | Category 1 | 86 mph | 203 km |
| 1986 | Bonnie | Category 1 | 86 mph | 196 km |
| 1983 | Alicia | Category 3 | 115 mph | 132 km |
Source: NOAA IBTrACS (Category 1+, 1980-2026).
Tornado History
381 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 26 fatalities, 312 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Dec 28, 2024 | EF3 | 100 km | 10.3 mi | 0 |
| Apr 22, 2020 | EF3 | 86 km | 28.5 mi | 3 |
| Apr 13, 2019 | EF3 | 61 km | 32.5 mi | 0 |
| Dec 25, 2012 | EF3 | 84 km | 9.7 mi | 0 |
| Mar 10, 2000 | EF3 | 70 km | 21.0 mi | 0 |
| Nov 15, 1987 | EF3 | 99 km | 10.5 mi | 1 |
| Feb 5, 1986 | EF3 | 97 km | 5.0 mi | 2 |
| Dec 12, 1968 | EF3 | 80 km | 6.2 mi | 0 |
| Sep 22, 1965 | EF3 | 70 km | 0.8 mi | 0 |
| May 10, 1959 | EF3 | 50 km | 15.8 mi | 0 |
| Oct 14, 1957 | EF3 | 73 km | 1.0 mi | 0 |
| Mar 20, 1957 | EF3 | 91 km | 7.2 mi | 0 |
| Mar 20, 1957 | EF3 | 95 km | 16.9 mi | 0 |
| Apr 5, 1956 | EF3 | 30 km | 5.2 mi | 0 |
| Dec 2, 1953 | EF3 | 91 km | 3.3 mi | 0 |
| May 16, 1953 | EF3 | 70 km | 5.2 mi | 1 |
| Jun 5, 1950 | EF3 | 73 km | 23.9 mi | 0 |
| Mar 21, 2022 | EF2 | 56 km | 19.1 mi | 1 |
| Apr 24, 2019 | EF2 | 23 km | 1.7 mi | 0 |
| Apr 13, 2019 | EF2 | 59 km | 6.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
20 wildfires (100+ acres) recorded within 100 km. Largest: RILEY ROAD (18,999 acres, 2011).
| Year | Name | Acres Burned | Distance |
| 2011 | RILEY ROAD | 18,999 | 64 km |
| 2021 | UNNAMED | 7,272 | 97 km |
| 2019 | UNNAMED | 6,349 | 42 km |
| 2010 | RX BURN COMPARTMENT 86-87 | 5,501 | 79 km |
| 2017 | UNNAMED | 5,187 | 98 km |
| 2011 | DYER MILL | 5,170 | 55 km |
| 2013 | UNNAMED | 5,033 | 54 km |
| 2011 | 841 ARBOR | 4,966 | 90 km |
| 2019 | UNNAMED | 4,767 | 96 km |
| 2020 | C-38/39/40 | 4,708 | 54 km |
| 2011 | S839 CONCORD ROBBINS | 4,388 | 51 km |
| 2013 | UNNAMED | 4,218 | 42 km |
| 2017 | UNNAMED | 4,195 | 54 km |
| 2022 | UNNAMED | 4,072 | 79 km |
| 2016 | UNNAMED | 4,014 | 55 km |
| 2020 | BIGWOODS C81/86 | 3,979 | 79 km |
| 2022 | UNNAMED | 3,972 | 55 km |
| 2010 | RX BURN C 36 39 | 3,832 | 55 km |
| 2022 | UNNAMED | 3,796 | 66 km |
| 2022 | UNNAMED | 3,503 | 95 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 49°F (10°C) | 4.4 in | Coldest |
| February | 53°F (12°C) | 3.4 in | |
| March | 60°F (15°C) | 3.4 in | |
| April | 67°F (19°C) | 3.4 in | |
| May | 74°F (23°C) | 4.9 in | Wettest |
| June | 80°F (27°C) | 3.8 in | |
| July | 83°F (28°C) | 2.9 in | Driest |
| August | 84°F (29°C) | 3.4 in | Warmest |
| September | 78°F (26°C) | 3.9 in | |
| October | 69°F (20°C) | 4.7 in | |
| November | 58°F (14°C) | 4.3 in | |
| December | 51°F (10°C) | 4.4 in |
Iola has a seasonal temperature swing of 34°F / from 49°F in January to 84°F in August. Total annual precipitation is 46.8 inches, with May being the wettest month (4.9") and July the driest (2.9").