Marietta, TX
Full City Profile · Texas · Morris County County
2.6
/5.0
C+
Fair
220
Population
379/sq mi density
$36,667
Median Income
$15,199 per capita
$152,100
Home Value
$146,641 Zillow
65°F
Avg Temperature
C+
Overall
2.6 / 5.0
Fair overall score based on economy, affordability, safety and education
D
Economy
1.8 / 5.0
$36,667 median income, 6.6% unemployment
A
Affordability
4.3 / 5.0
$152,100 home value, /mo rent
D
Education
1.7 / 5.0
9.2% bachelor's degree or higher
Marietta enjoys a temperate climate with an average annual temperature of 65°F (18°C). Winters average 45°F in January while summers reach 83°F in July. Annual precipitation totals 51.0 inches. The area receives 1.3 inches of snow annually.
Temperature
45°F Jan (7°C)
83°F Jul (28°C)
| Annual Average | 64.7°F |
| 20% above US avg | |
| January Average | 45°F (7°C) |
| July Average | 83°F (28°C) |
Geography
| Elevation | 351 ft (107 m) |
| Area | 0.6 sq mi (1.5 km²) |
| Population Density | 379/sq mi |
| Coordinates | 33.1735°N, 94.5425°W |
| Timezone | America/Chicago |
| County | Morris County County |
| Nearest Airport | Mount Pleasant Regional (MPS) 25 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 34.5 / 100 |
| Social Vulnerability | 97.5 / 100 |
| Community Resilience | 66.3 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Relatively Low |
| Flood | Very Low |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively High |
| 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 | 45°F (7°C) | 4.3 in | Coldest |
| February | 49°F (9°C) | 4.7 in | |
| March | 56°F (13°C) | 4.7 in | |
| April | 64°F (18°C) | 4.1 in | |
| May | 73°F (23°C) | 5.0 in | Wettest |
| June | 80°F (27°C) | 4.2 in | |
| July | 83°F (28°C) | 3.3 in | |
| August | 83°F (28°C) | 3.2 in | Warmest, Driest |
| September | 77°F (25°C) | 4.3 in | |
| October | 66°F (19°C) | 4.7 in | |
| November | 55°F (13°C) | 4.0 in | |
| December | 47°F (8°C) | 4.6 in |
Marietta has a seasonal temperature swing of 38°F / from 45°F in January to 83°F in August. Total annual precipitation is 51.0 inches, with May being the wettest month (5.0") and August the driest (3.2").