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Onalaska, TX
Full City Profile · Texas · San Jacinto County County
2.4
/5.0
C
Fair
3,133
Population
576/sq mi density
$44,216
Median Income
$27,433 per capita
$121,900
Home Value
$173,864 Zillow
$1,021
Median Rent
51.0% income on rent
69°F
Avg Temperature
306 sunny days/yr
316
Violent Crime/100K
2,139 property/100K
C
Overall
2.4 / 5.0
Fair overall score based on economy, affordability, safety and education
C
Economy
2.3 / 5.0
$44,216 median income, 6.8% unemployment
A+
Affordability
5.0 / 5.0
$121,900 home value, $1,021/mo rent
F
Safety
1.0 / 5.0
316 violent crimes/100K
F
Education
1.4 / 5.0
4.5% bachelor's degree or higher
Onalaska enjoys a temperate climate with an average annual temperature of 69°F (21°C). Winters average 51°F in January while summers reach 85°F in July. The area gets 306 sunny days per year. Annual precipitation totals 51.0 inches. Air quality is rated Good with a median AQI of 42.
Temperature
51°F Jan (11°C)
85°F Jul (29°C)
| Annual Average | 68.6°F |
| 27% above US avg | |
| January Average | 51°F (11°C) |
| July Average | 85°F (29°C) |
| Sunny Days | 306 days/yr |
Geography
| Elevation | 253 ft (77 m) |
| Area | 4.3 sq mi (11.2 km²) |
| Population Density | 576/sq mi |
| Coordinates | 30.8238°N, 95.1107°W |
| Timezone | America/Chicago |
| County | San Jacinto County County |
| Nearest Airport | Conroe/North Houston Regional (CXO) 37 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 58.9 / 100 |
| Social Vulnerability | 80.9 / 100 |
| Community Resilience | 9.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Very Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | No Rating |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 51°F (11°C) | 3.8 in | Coldest |
| February | 52°F (11°C) | 3.3 in | |
| March | 59°F (15°C) | 3.5 in | |
| April | 66°F (19°C) | 3.4 in | |
| May | 73°F (23°C) | 5.3 in | Wettest |
| June | 80°F (26°C) | 4.7 in | |
| July | 85°F (29°C) | 3.3 in | Warmest |
| August | 82°F (28°C) | 3.1 in | Driest |
| September | 78°F (25°C) | 4.4 in | |
| October | 69°F (20°C) | 3.5 in | |
| November | 59°F (15°C) | 4.1 in | |
| December | 52°F (11°C) | 4.5 in |
Onalaska has a seasonal temperature swing of 34°F / from 51°F in January to 85°F in July. Total annual precipitation is 46.9 inches, with May being the wettest month (5.3") and August the driest (3.1").