Weather & Climate in Gray CDP (Blair County), PA
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Gray CDP (Blair County) experiences four distinct seasons with an average annual temperature of 47°F (8°C). Winters average 24°F in January while summers reach 68°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
24°F Jan (-5°C)
68°F Jul (20°C)
| Annual Average | 46.6°F |
| 14% below US avg | |
| January Average | 24°F (-5°C) |
| July Average | 68°F (20°C) |
Geography
| Elevation | 993 ft (303 m) |
| Area | 0.2 sq mi (0.4 km²) |
| Population Density | 656/sq mi |
| Coordinates | 40.6576°N, 78.2521°W |
| Timezone | America/New_York |
| County | Blair County County |
| Nearest Airport | State College Regional (SCE) 29 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 | 68 km | 27 km |
| Jun 3, 2010 | 4 km ENE of Franklintown, Pennsylvania | M3.1 | 126 km | 2 km |
| Apr 24, 2009 | 1 km S of Franklintown, Pennsylvania | M2.9 | 123 km | 1 km |
| Sep 15, 2019 | 5 km ESE of East Berlin, Pennsylvania | M2.8 | 140 km | 5 km |
| Oct 25, 2009 | 4 km ENE of Franklintown, Pennsylvania | M2.8 | 125 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 | 68 km | 69.0 mi | 0 |
| Sep 3, 1963 | EF3 | 94 km | 8.4 mi | 0 |
| Apr 16, 1961 | EF3 | 92 km | 0.1 mi | 0 |
| Mar 31, 2022 | EF2 | 97 km | 8.6 mi | 0 |
| Apr 19, 2019 | EF2 | 56 km | 4.9 mi | 0 |
| Apr 19, 2019 | EF2 | 91 km | 2.9 mi | 0 |
| Oct 2, 2018 | EF2 | 94 km | 4.1 mi | 0 |
| May 23, 2011 | EF2 | 90 km | 4.7 mi | 0 |
| Apr 28, 2002 | EF2 | 83 km | 5.0 mi | 0 |
| Aug 15, 1997 | EF2 | 97 km | 3.5 mi | 0 |
| Jul 19, 1996 | EF2 | 66 km | 27.4 mi | 0 |
| Jul 19, 1996 | EF2 | 44 km | 6.0 mi | 0 |
| Sep 26, 1994 | EF2 | 31 km | 3.5 mi | 0 |
| Sep 18, 1991 | EF2 | 37 km | 4.0 mi | 0 |
| Nov 20, 1989 | EF2 | 37 km | 3.5 mi | 0 |
| Jun 20, 1989 | EF2 | 71 km | 2.0 mi | 0 |
| Jul 26, 1981 | EF2 | 83 km | 0.1 mi | 0 |
| Jun 9, 1980 | EF2 | 34 km | 7.4 mi | 0 |
| May 12, 1980 | EF2 | 100 km | 2.2 mi | 0 |
| Apr 9, 1980 | EF2 | 79 km | 0.1 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 | 81 km |
| 2006 | BEAR TRAP | 561 | 76 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 24°F (-5°C) | 2.9 in | Coldest |
| February | 26°F (-3°C) | 2.6 in | Driest |
| March | 33°F (1°C) | 3.5 in | |
| April | 46°F (8°C) | 3.8 in | |
| May | 56°F (13°C) | 4.0 in | |
| June | 64°F (18°C) | 4.1 in | |
| July | 68°F (20°C) | 4.1 in | Warmest |
| August | 67°F (19°C) | 3.9 in | |
| September | 60°F (16°C) | 4.2 in | Wettest |
| October | 49°F (9°C) | 3.6 in | |
| November | 38°F (3°C) | 3.3 in | |
| December | 29°F (-2°C) | 3.3 in |
Gray CDP (Blair County) has a seasonal temperature swing of 45°F / from 24°F in January to 68°F in July. Total annual precipitation is 43.4 inches, with September being the wettest month (4.2") and February the driest (2.6").