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Weather & Climate in Chestertown, NY
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Chestertown experiences four distinct seasons with an average annual temperature of 48°F (9°C). Winters average 21°F in January while summers reach 72°F in July. The area gets 246 sunny days per year, above the national average. Annual precipitation totals 42.6 inches. Air quality is rated Good with a median AQI of 36. The city sits at an elevation of 1,119 feet.
Temperature
21°F Jan (-6°C)
72°F Jul (22°C)
| Annual Average | 47.9°F |
| 11% below US avg | |
| January Average | 21°F (-6°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 246 days/yr |
Geography
| Elevation | 1,119 ft (341 m) |
| Area | 3.9 sq mi (10.0 km²) |
| Population Density | 138/sq mi |
| Coordinates | 43.6431°N, 73.7835°W |
| Timezone | America/New_York |
| County | Warren County County |
| Nearest Airport | Rutland/Southern Vermont Regional (RUT) 42 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 62.3 / 100 |
| Social Vulnerability | 26.6 / 100 |
| Community Resilience | 95.7 / 100 |
Hazard Breakdown
| Tornado | Relatively Low |
| Hurricane | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively High |
| 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
39 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 | 97 km | 5 km |
| Jun 17, 1991 | 7 km NE of Worcester, New York | M4.0 | 134 km | 5 km |
| Apr 20, 2000 | 7 km WSW of Newcomb, New York | M3.8 | 51 km | 5 km |
| Apr 8, 2003 | 17 km ESE of Saint Regis Falls, New York | M3.7 | 117 km | 10 km |
| Apr 20, 2002 | 5 km NNW of Au Sable Forks, New York | M3.7 | 94 km | 5 km |
| Jun 9, 1998 | 3 km N of Dannemora, New York | M3.3 | 123 km | 5 km |
| Jul 31, 1997 | 0 km WSW of Lyons Falls, New York | M3.2 | 128 km | 5 km |
| Aug 24, 2011 | 13 km ENE of Saint Regis Falls, New York | M3.2 | 127 km | 5 km |
| Dec 13, 2009 | 15 km N of Medusa, New York | M3.2 | 122 km | 10 km |
| May 24, 2002 | 6 km N of Au Sable Forks, New York | M3.1 | 96 km | 10 km |
| Mar 11, 2020 | 0 km SSW of South Glens Falls, New York | M3.1 | 41 km | 13 km |
| Jul 24, 2007 | 12 km SSW of Altamont, New York | M3.1 | 119 km | 15 km |
| May 18, 2009 | 15 km N of Medusa, New York | M3.1 | 122 km | 9 km |
| Mar 2, 1995 | 3 km ENE of Tupper Lake, New York | M3.0 | 83 km | 4 km |
| Jun 25, 2002 | 6 km NNW of Au Sable Forks, New York | M3.0 | 95 km | 9 km |
| Oct 13, 1997 | 18 km NW of Cranberry Lake, New York | M3.0 | 124 km | 4 km |
| Mar 9, 1999 | 7 km NW of Dannemora, New York | M2.9 | 124 km | 10 km |
| Sep 29, 1994 | 13 km WNW of North Creek, New York | M2.9 | 30 km | 16 km |
| Oct 21, 2009 | 15 km N of Medusa, New York | M2.9 | 122 km | 7 km |
| May 14, 2007 | 5 km ESE of Benson, Vermont | M2.8 | 44 km | 8 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 1.
| Year | Name | Category | Max Wind | Closest |
| 1991 | Bob | Category 2 | 104 mph | 291 km |
| 1985 | Gloria | Category 1 | 86 mph | 210 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
77 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 89 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 22, 2014 | EF3 | 97 km | 6.8 mi | 0 |
| May 31, 1998 | EF3 | 80 km | 30.5 mi | 0 |
| Aug 20, 1968 | EF3 | 100 km | 1.0 mi | 0 |
| Jun 24, 1960 | EF3 | 94 km | 16.0 mi | 0 |
| May 29, 2013 | EF2 | 95 km | 12.8 mi | 0 |
| Jun 5, 2002 | EF2 | 100 km | 0.1 mi | 0 |
| Jun 11, 1976 | EF2 | 36 km | 0.1 mi | 0 |
| Aug 28, 1973 | EF2 | 51 km | 2.3 mi | 0 |
| Aug 28, 1973 | EF2 | 85 km | 2.3 mi | 0 |
| May 29, 1969 | EF2 | 74 km | 0.5 mi | 0 |
| Mar 22, 1955 | EF2 | 86 km | 0.1 mi | 0 |
| May 6, 1952 | EF2 | 78 km | 4.9 mi | 0 |
| Jul 16, 2024 | EF1 | 49 km | 8.4 mi | 0 |
| Jul 16, 2024 | EF1 | 59 km | 1.5 mi | 0 |
| Jul 16, 2024 | EF1 | 88 km | 4.1 mi | 0 |
| Jul 16, 2024 | EF1 | 61 km | 0.5 mi | 0 |
| Jul 16, 2024 | EF1 | 42 km | 4.6 mi | 0 |
| Jul 18, 2022 | EF1 | 62 km | 0.9 mi | 0 |
| Mar 26, 2021 | EF1 | 67 km | 0.7 mi | 0 |
| Aug 29, 2020 | EF1 | 82 km | 2.2 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 21°F (-6°C) | 2.8 in | |
| February | 21°F (-6°C) | 2.5 in | Coldest, Driest |
| March | 30°F (-1°C) | 3.0 in | |
| April | 42°F (6°C) | 3.3 in | |
| May | 55°F (13°C) | 3.8 in | |
| June | 63°F (17°C) | 3.7 in | |
| July | 72°F (22°C) | 3.5 in | Warmest |
| August | 66°F (19°C) | 4.3 in | Wettest |
| September | 58°F (14°C) | 3.5 in | |
| October | 47°F (8°C) | 3.5 in | |
| November | 36°F (2°C) | 3.8 in | |
| December | 24°F (-4°C) | 3.2 in |
Chestertown has a seasonal temperature swing of 52°F / from 21°F in February to 72°F in July. Total annual precipitation is 40.9 inches, with August being the wettest month (4.3") and February the driest (2.5").