Weather & Climate in Grazierville, PA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Grazierville experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 25°F in January while summers reach 70°F in July. Annual precipitation totals 43.4 inches. The area receives 34.7 inches of snow annually, a moderate snowfall amount. Air quality is rated Good with a median AQI of 37. 81% of days have good air quality. The city sits at an elevation of 993 feet.
Temperature
25°F Jan (-4°C)
70°F Jul (21°C)
| Annual Average | 48.0°F |
| 11% below US avg | |
| January Average | 25°F (-4°C) |
| July Average | 70°F (21°C) |
Geography
| Elevation | 993 ft (303 m) |
| Area | 1.1 sq mi (2.8 km²) |
| Population Density | 607/sq mi |
| Coordinates | 40.6575°N, 78.2713°W |
| Timezone | America/New_York |
| County | Blair County County |
| Nearest Airport | State College Regional (SCE) 30 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 37.0 |
| Rating | Good |
| Good Days % | 80.9% |
| Unhealthy Days | 0 |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 77.7 / 100 |
| Social Vulnerability | 57.6 / 100 |
| Community Resilience | 94.1 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Relatively Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Very Low |
| Drought | No Rating |
| Cold Wave | Relatively Low |
| Landslide | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
5 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.4.
| Jun 13, 2019 | 9 km N of Blain, Pennsylvania | M3.4 | 70 km | 27 km |
| Jun 3, 2010 | 4 km ENE of Franklintown, Pennsylvania | M3.1 | 127 km | 2 km |
| Apr 24, 2009 | 1 km S of Franklintown, Pennsylvania | M2.9 | 124 km | 1 km |
| Sep 15, 2019 | 5 km ESE of East Berlin, Pennsylvania | M2.8 | 141 km | 5 km |
| Oct 25, 2009 | 4 km ENE of Franklintown, Pennsylvania | M2.8 | 126 km | 1 km |
Source: USGS Earthquake Catalog (M2.5+, 1990-2025). Sorted by magnitude.
Tornado History
170 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 47 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 31, 1985 | EF4 | 67 km | 69.0 mi | 0 |
| Sep 3, 1963 | EF3 | 93 km | 8.4 mi | 0 |
| Apr 16, 1961 | EF3 | 93 km | 0.1 mi | 0 |
| Mar 31, 2022 | EF2 | 95 km | 8.6 mi | 0 |
| Apr 19, 2019 | EF2 | 57 km | 4.9 mi | 0 |
| Apr 19, 2019 | EF2 | 91 km | 2.9 mi | 0 |
| Oct 2, 2018 | EF2 | 93 km | 4.1 mi | 0 |
| May 23, 2011 | EF2 | 91 km | 4.7 mi | 0 |
| Apr 28, 2002 | EF2 | 82 km | 5.0 mi | 0 |
| Aug 15, 1997 | EF2 | 96 km | 3.5 mi | 0 |
| Jul 19, 1996 | EF2 | 65 km | 27.4 mi | 0 |
| Jul 19, 1996 | EF2 | 100 km | 10.0 mi | 0 |
| Jul 19, 1996 | EF2 | 42 km | 6.0 mi | 0 |
| Sep 26, 1994 | EF2 | 30 km | 3.5 mi | 0 |
| Sep 18, 1991 | EF2 | 38 km | 4.0 mi | 0 |
| Nov 20, 1989 | EF2 | 38 km | 3.5 mi | 0 |
| Jun 20, 1989 | EF2 | 73 km | 2.0 mi | 0 |
| Jul 26, 1981 | EF2 | 82 km | 0.1 mi | 0 |
| Jun 9, 1980 | EF2 | 32 km | 7.4 mi | 0 |
| May 12, 1980 | EF2 | 98 km | 2.2 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950-2024, US only).
Wildfire History
4 wildfires (100+ acres) recorded within 100 km. Largest: BEAR DEN (945 acres, 2014).
| Year | Name | Acres Burned | Distance |
| 2014 | BEAR DEN | 945 | 97 km |
| 2018 | FIELDS RUN | 711 | 63 km |
| 2006 | FIVE MILE FIRE | 658 | 82 km |
| 2006 | BEAR TRAP | 561 | 77 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 25°F (-4°C) | 2.9 in | Coldest |
| February | 27°F (-3°C) | 2.6 in | Driest |
| March | 35°F (2°C) | 3.5 in | |
| April | 47°F (8°C) | 3.8 in | |
| May | 57°F (14°C) | 4.0 in | |
| June | 66°F (19°C) | 4.1 in | |
| July | 70°F (21°C) | 4.1 in | Warmest |
| August | 68°F (20°C) | 3.9 in | |
| September | 61°F (16°C) | 4.2 in | Wettest |
| October | 50°F (10°C) | 3.6 in | |
| November | 39°F (4°C) | 3.3 in | |
| December | 30°F (-1°C) | 3.3 in |
Grazierville has a seasonal temperature swing of 45°F / from 25°F in January to 70°F in July. Total annual precipitation is 43.4 inches, with September being the wettest month (4.2") and February the driest (2.6").