Castalian Springs, TN
Full City Profile · Tennessee · Trousdale County County
4.5
/5.0
A+
Excellent
648
Population
111/sq mi density
$86,071
Median Income
$36,198 per capita
$250,000
Home Value
$428,385 Zillow
57°F
Avg Temperature
A+
Overall
4.5 / 5.0
Strong
A+
Economy
4.7 / 5.0
$86,071 median income, 0.0% unemployment
A+
Affordability
5.0 / 5.0
$250,000 home value, /mo rent
B+
Education
3.7 / 5.0
33.5% bachelor's degree or higher
Castalian Springs enjoys a temperate climate with an average annual temperature of 57°F (14°C). Winters average 35°F in January while summers reach 77°F in July. Annual precipitation totals 55.0 inches. The area receives 4.6 inches of snow annually.
Temperature
35°F Jan (2°C)
77°F Jul (25°C)
| Annual Average | 56.7°F |
| 5% above US avg | |
| January Average | 35°F (2°C) |
| July Average | 77°F (25°C) |
Geography
| Elevation | 561 ft (171 m) |
| Area | 5.8 sq mi (15.1 km²) |
| Population Density | 111/sq mi |
| Coordinates | 36.4012°N, 86.3068°W |
| Timezone | America/Chicago |
| County | Trousdale County County |
| Nearest Airport | Nashville International (BNA) 28 miles away |
Precipitation & Snow
Air Quality
Natural Hazard Risk
| Overall Risk | Very Low |
| Risk Score | 6.1 / 100 |
| Social Vulnerability | 10.6 / 100 |
| Community Resilience | 32.5 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Very Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Very Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Very Low |
| Lightning | Very Low |
| Ice Storm | Very Low |
| Drought | Very Low |
| Cold Wave | Relatively Low |
| Landslide | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 35°F (2°C) | 4.4 in | Coldest |
| February | 39°F (4°C) | 4.7 in | |
| March | 47°F (8°C) | 4.9 in | |
| April | 56°F (13°C) | 5.2 in | |
| May | 65°F (18°C) | 5.7 in | Wettest |
| June | 73°F (23°C) | 4.6 in | |
| July | 77°F (25°C) | 5.2 in | Warmest |
| August | 76°F (24°C) | 3.8 in | |
| September | 70°F (21°C) | 3.7 in | Driest |
| October | 57°F (14°C) | 3.8 in | |
| November | 46°F (8°C) | 3.9 in | |
| December | 39°F (4°C) | 5.0 in |
Castalian Springs has a seasonal temperature swing of 42°F / from 35°F in January to 77°F in July. Total annual precipitation is 55.0 inches, with May being the wettest month (5.7") and September the driest (3.7").