Grindstone, PA
Full City Profile · Pennsylvania · Westmoreland County County
2.0
/5.0
C
Fair
592
Population
448/sq mi density
$97,300
Home Value
$92,757 Zillow
$1,064
Median Rent
9.0% income on rent
52°F
Avg Temperature
C
Overall
2.0 / 5.0
Fair overall score based on economy, affordability, safety and education
C
Education
2.0 / 5.0
12.5% bachelor's degree or higher
Grindstone experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 30°F in January while summers reach 73°F in July. Annual precipitation totals 44.3 inches. The area receives 28.1 inches of snow annually. Air quality is rated Good with a median AQI of 39.
Temperature
30°F Jan (-1°C)
73°F Jul (23°C)
| Annual Average | 52.1°F |
| 4% below US avg | |
| January Average | 30°F (-1°C) |
| July Average | 73°F (23°C) |
Geography
| Elevation | 984 ft (300 m) |
| Area | 1.3 sq mi (3.3 km²) |
| Population Density | 448/sq mi |
| Coordinates | 40.0219°N, 79.8231°W |
| Timezone | America/New_York |
| County | Westmoreland County County |
| Nearest Airport | Arnold Palmer Regional (LBE) 28 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 39.0 |
| Rating | Good |
| Good Days % | 76.6% |
| Unhealthy Days | 0 |
Air Pollutants (EPA 2023)
| Ozone (O₃) | 0.0423 ppm |
| PM2.5 (Fine Particles) | 8.3 μg/m³ |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 87.9 / 100 |
| Social Vulnerability | 30.2 / 100 |
| Community Resilience | 92.8 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Relatively Moderate |
| Strong Wind | Relatively High |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively High |
| Ice Storm | Relatively Moderate |
| Drought | Very Low |
| Cold Wave | Very Low |
| Landslide | Relatively Moderate |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 30°F (-1°C) | 3.3 in | Coldest |
| February | 33°F (0°C) | 2.8 in | Driest |
| March | 40°F (4°C) | 3.7 in | |
| April | 51°F (11°C) | 3.8 in | |
| May | 61°F (16°C) | 4.4 in | |
| June | 69°F (21°C) | 4.8 in | Wettest |
| July | 73°F (23°C) | 4.8 in | Warmest |
| August | 72°F (22°C) | 3.6 in | |
| September | 65°F (18°C) | 3.6 in | |
| October | 54°F (12°C) | 3.2 in | |
| November | 43°F (6°C) | 3.2 in | |
| December | 35°F (2°C) | 3.3 in |
Grindstone has a seasonal temperature swing of 43°F / from 30°F in January to 73°F in July. Total annual precipitation is 44.4 inches, with June being the wettest month (4.8") and February the driest (2.8").