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Weather & Climate in South Glens Falls, NY
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
South Glens Falls has a cool climate with an average annual temperature of 45°F (7°C). Winters average 19°F in January while summers reach 70°F in July. The area gets 246 sunny days per year, above the national average. Annual precipitation totals 46.7 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 36. The city sits at an elevation of 344 feet.
Temperature
19°F Jan (-7°C)
70°F Jul (21°C)
| Annual Average | 45.2°F |
| 16% below US avg | |
| January Average | 19°F (-7°C) |
| July Average | 70°F (21°C) |
| Sunny Days | 246 days/yr |
Geography
| Elevation | 344 ft (105 m) |
| Area | 1.5 sq mi (3.9 km²) |
| Population Density | 2,749/sq mi |
| Coordinates | 43.2944°N, 73.6336°W |
| Timezone | America/New_York |
| County | Washington County County |
| Nearest Airport | Rutland/Southern Vermont Regional (RUT) 38 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 56.6 / 100 |
| Social Vulnerability | 37.2 / 100 |
| Community Resilience | 71.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Relatively Low |
| Strong Wind | Relatively Low |
| Heat Wave | Relatively Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively Low |
| Drought | No Rating |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
26 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.3.
| Apr 20, 2002 | 8 km NNW of Au Sable Forks, New York | M5.3 | 136 km | 5 km |
| Jun 17, 1991 | 7 km NE of Worcester, New York | M4.0 | 113 km | 5 km |
| Apr 20, 2000 | 7 km WSW of Newcomb, New York | M3.8 | 88 km | 5 km |
| Apr 20, 2002 | 5 km NNW of Au Sable Forks, New York | M3.7 | 133 km | 5 km |
| Jun 16, 2000 | 5 km NE of Granville, Massachusetts | M3.3 | 149 km | 10 km |
| Jul 31, 1997 | 0 km WSW of Lyons Falls, New York | M3.2 | 145 km | 5 km |
| Dec 13, 2009 | 15 km N of Medusa, New York | M3.2 | 89 km | 10 km |
| May 24, 2002 | 6 km N of Au Sable Forks, New York | M3.1 | 135 km | 10 km |
| Mar 11, 2020 | 0 km SSW of South Glens Falls, New York | M3.1 | 0 km | 13 km |
| Jul 24, 2007 | 12 km SSW of Altamont, New York | M3.1 | 86 km | 15 km |
| May 18, 2009 | 15 km N of Medusa, New York | M3.1 | 89 km | 9 km |
| Jun 25, 2002 | 6 km NNW of Au Sable Forks, New York | M3.0 | 134 km | 9 km |
| Mar 2, 1995 | 3 km ENE of Tupper Lake, New York | M3.0 | 122 km | 4 km |
| Sep 29, 1994 | 13 km WNW of North Creek, New York | M2.9 | 64 km | 16 km |
| Oct 21, 2009 | 15 km N of Medusa, New York | M2.9 | 89 km | 7 km |
| May 14, 2007 | 5 km ESE of Benson, Vermont | M2.8 | 55 km | 8 km |
| Jul 23, 1996 | 15 km NNE of Saranac Lake, New York | M2.8 | 133 km | 5 km |
| Mar 22, 2009 | 9 km SW of Altamont, New York | M2.8 | 83 km | 16 km |
| Aug 27, 2011 | 5 km WSW of Altamont, New York | M2.8 | 78 km | 22 km |
| Aug 25, 2011 | 5 km WSW of Altamont, New York | M2.7 | 78 km | 18 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
2 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.
| Year | Name | Category | Max Wind | Closest |
| 1991 | Bob | Category 2 | 104 mph | 267 km |
| 1985 | Gloria | Category 1 | 86 mph | 169 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
109 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 4 fatalities, 165 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Jul 10, 1989 | EF4 | 89 km | 42.0 mi | 0 |
| Aug 28, 1973 | EF4 | 99 km | 9.8 mi | 4 |
| May 22, 2014 | EF3 | 70 km | 6.8 mi | 0 |
| May 31, 1998 | EF3 | 43 km | 30.5 mi | 0 |
| Aug 20, 1968 | EF3 | 71 km | 1.0 mi | 0 |
| Jun 24, 1960 | EF3 | 59 km | 16.0 mi | 0 |
| May 29, 2013 | EF2 | 68 km | 12.8 mi | 0 |
| Jul 21, 2003 | EF2 | 100 km | 1.3 mi | 0 |
| Jun 5, 2002 | EF2 | 74 km | 0.1 mi | 0 |
| May 31, 1998 | EF2 | 79 km | 8.0 mi | 0 |
| Jun 11, 1976 | EF2 | 8 km | 0.1 mi | 0 |
| Jul 13, 1975 | EF2 | 98 km | 0.3 mi | 0 |
| Aug 28, 1973 | EF2 | 82 km | 2.3 mi | 0 |
| Aug 28, 1973 | EF2 | 44 km | 2.3 mi | 0 |
| May 29, 1969 | EF2 | 45 km | 0.5 mi | 0 |
| Aug 11, 1966 | EF2 | 94 km | 1.0 mi | 0 |
| Mar 1, 1966 | EF2 | 82 km | 0.1 mi | 0 |
| Jul 9, 1962 | EF2 | 84 km | 7.6 mi | 0 |
| Jul 9, 1962 | EF2 | 92 km | 7.7 mi | 0 |
| Oct 24, 1955 | EF2 | 92 km | 1.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
1 wildfire (100+ acres) recorded within 100 km. Largest: EAST MOUNTAIN (964 acres, 2021).
| Year | Name | Acres Burned | Distance |
| 2021 | EAST MOUNTAIN | 964 | 74 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 19°F (-7°C) | 2.6 in | Coldest |
| February | 23°F (-5°C) | 2.1 in | Driest |
| March | 33°F (1°C) | 2.9 in | |
| April | 46°F (8°C) | 3.0 in | |
| May | 58°F (14°C) | 3.7 in | |
| June | 66°F (19°C) | 3.5 in | |
| July | 70°F (21°C) | 3.4 in | Warmest |
| August | 69°F (20°C) | 3.9 in | Wettest |
| September | 60°F (16°C) | 3.3 in | |
| October | 49°F (9°C) | 3.2 in | |
| November | 38°F (4°C) | 3.3 in | |
| December | 26°F (-3°C) | 2.9 in |
South Glens Falls has a seasonal temperature swing of 52°F / from 19°F in January to 70°F in July. Total annual precipitation is 37.8 inches, with August being the wettest month (3.9") and February the driest (2.1").