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Thorndale, PA
Full City Profile · Pennsylvania · Montgomery County County
3.9
/5.0
B+
Good
4,139
Population
2,225/sq mi density
$107,995
Median Income
$46,748 per capita
$317,600
Home Value
$402,339 Zillow
$1,798
Median Rent
36.4% income on rent
53°F
Avg Temperature
271 sunny days/yr
239
Violent Crime/100K
2,884 property/100K
B+
Overall
3.9 / 5.0
Good overall score based on economy, affordability, safety and education
A+
Economy
5.0 / 5.0
$107,995 median income, 1.0% unemployment
A+
Affordability
5.0 / 5.0
$317,600 home value, $1,798/mo rent
F
Safety
1.0 / 5.0
239 violent crimes/100K
A
Education
4.5 / 5.0
43.6% bachelor's degree or higher
Thorndale experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 30°F in January while summers reach 74°F in July. The area gets 271 sunny days per year. Annual precipitation totals 50.8 inches. The area receives 28.4 inches of snow annually. Air quality is rated Good with a median AQI of 40.
Temperature
30°F Jan (-1°C)
74°F Jul (24°C)
| Annual Average | 52.5°F |
| 3% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 74°F (24°C) |
| Sunny Days | 271 days/yr |
Geography
| Elevation | 335 ft (102 m) |
| Area | 1.9 sq mi (4.8 km²) |
| Population Density | 2,225/sq mi |
| Coordinates | 40.0010°N, 75.7517°W |
| Timezone | America/New_York |
| County | Montgomery County County |
| Nearest Airport | Reading Regional/Carl A Spaatz Field (RDG) 28 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 40.0 |
| Rating | Good |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0436 ppm |
| PM2.5 (Fine Particles) | 9.3 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively High |
| Risk Score | 96.8 / 100 |
| Social Vulnerability | 19.8 / 100 |
| Community Resilience | 92.8 / 100 |
Hazard Breakdown
| Tornado | Relatively High |
| Hurricane | Relatively Moderate |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Relatively Low |
| Strong Wind | Very High |
| Heat Wave | Relatively High |
| Winter Weather | Very High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Moderate |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Relatively Low |
| Coastal Flood | No Rating |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
2 tsunamis recorded within 500 km.
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1895 | HIGH BRIDGE, NJ | Earthquake | — | — | 104 km |
| 1840 | PHILADELPHIA, PENNSYLVANIA | Earthquake | — | — | 52 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 3.6 in | Coldest |
| February | 31°F (-1°C) | 2.9 in | Driest |
| March | 40°F (4°C) | 3.7 in | |
| April | 50°F (10°C) | 3.8 in | |
| May | 60°F (16°C) | 4.5 in | |
| June | 68°F (20°C) | 4.2 in | |
| July | 74°F (24°C) | 4.5 in | Warmest, Wettest |
| August | 72°F (22°C) | 3.9 in | |
| September | 65°F (19°C) | 4.3 in | |
| October | 54°F (12°C) | 3.4 in | |
| November | 44°F (7°C) | 3.9 in | |
| December | 35°F (1°C) | 3.7 in |
Thorndale has a seasonal temperature swing of 44°F / from 30°F in January to 74°F in July. Total annual precipitation is 46.4 inches, with July being the wettest month (4.5") and February the driest (2.9").