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Knollwood, TX
Full City Profile · Texas · Grayson County County
3.0
/5.0
B
Good
488
Population
1,479/sq mi density
$61,250
Median Income
$37,586 per capita
$1,259
Median Rent
21.7% income on rent
64°F
Avg Temperature
308 sunny days/yr
359
Violent Crime/100K
2,910 property/100K
B
Overall
3.0 / 5.0
Good overall score based on economy, affordability, safety and education
B+
Economy
3.6 / 5.0
$61,250 median income, 6.3% unemployment
A
Affordability
4.4 / 5.0
F
Safety
1.0 / 5.0
359 violent crimes/100K
C+
Education
2.9 / 5.0
23.9% bachelor's degree or higher
Knollwood enjoys a temperate climate with an average annual temperature of 64°F (18°C). Winters average 43°F in January while summers reach 83°F in July. The area gets 308 sunny days per year. Annual precipitation totals 44.3 inches. Air quality is rated Good with a median AQI of 42.
Temperature
43°F Jan (6°C)
83°F Jul (28°C)
| Annual Average | 63.6°F |
| 18% above US avg | |
| January Average | 43°F (6°C) |
| July Average | 83°F (28°C) |
| Sunny Days | 308 days/yr |
Geography
| Elevation | 831 ft (253 m) |
| Area | 0.3 sq mi (0.9 km²) |
| Population Density | 1,479/sq mi |
| Coordinates | 33.6893°N, 96.6185°W |
| Timezone | America/Chicago |
| County | Grayson County County |
| Nearest Airport | North Texas Regional/Perrin Field (PNX) 4 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 42.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 80.3 / 100 |
| Social Vulnerability | 38.7 / 100 |
| Community Resilience | 44.2 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Very Low |
| Earthquake | Relatively Low |
| Wildfire | Relatively Low |
| Flood | Relatively Moderate |
| Hail | Relatively Moderate |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively Moderate |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 43°F (6°C) | 1.8 in | Coldest, Driest |
| February | 46°F (8°C) | 2.7 in | |
| March | 54°F (12°C) | 3.3 in | |
| April | 63°F (17°C) | 3.7 in | |
| May | 70°F (21°C) | 5.6 in | Wettest |
| June | 78°F (26°C) | 4.3 in | |
| July | 83°F (28°C) | 2.3 in | Warmest |
| August | 82°F (28°C) | 2.3 in | |
| September | 75°F (24°C) | 4.9 in | |
| October | 65°F (18°C) | 4.1 in | |
| November | 53°F (12°C) | 3.0 in | |
| December | 45°F (7°C) | 2.2 in |
Knollwood has a seasonal temperature swing of 40°F / from 43°F in January to 83°F in July. Total annual precipitation is 40.3 inches, with May being the wettest month (5.6") and January the driest (1.8").