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Weather & Climate in Greenwich, NY
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Greenwich experiences four distinct seasons with an average annual temperature of 46°F (8°C). Winters average 22°F in January while summers reach 68°F in July. The area gets 246 sunny days per year, above the national average. Annual precipitation totals 46.9 inches (wetter than the 38-inch national average). The area receives 75.2 inches of snow annually, making winter weather a significant factor for residents. Air quality is rated Good with a median AQI of 36. The city sits at an elevation of 324 feet.
Temperature
22°F Jan (-6°C)
68°F Jul (20°C)
| Annual Average | 45.6°F |
| 16% below US avg | |
| January Average | 22°F (-6°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 246 days/yr |
Geography
| Elevation | 324 ft (99 m) |
| Area | 1.5 sq mi (3.8 km²) |
| Population Density | 1,093/sq mi |
| Coordinates | 43.0865°N, 73.4967°W |
| Timezone | America/New_York |
| County | Washington County County |
| Nearest Airport | Albany International (ALB) 28 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
24 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.0.
| Jun 17, 1991 | 7 km NE of Worcester, New York | M4.0 | 109 km | 5 km |
| Apr 20, 2000 | 7 km WSW of Newcomb, New York | M3.8 | 114 km | 5 km |
| Oct 2, 1994 | 6 km W of Hardwick, Massachusetts | M3.7 | 129 km | 10 km |
| Oct 2, 1994 | 1 km NW of Hardwick, Massachusetts | M3.3 | 132 km | 10 km |
| Jun 16, 2000 | 5 km NE of Granville, Massachusetts | M3.3 | 123 km | 10 km |
| Dec 13, 2009 | 15 km N of Medusa, New York | M3.2 | 76 km | 10 km |
| Mar 11, 2020 | 0 km SSW of South Glens Falls, New York | M3.1 | 26 km | 13 km |
| Jul 24, 2007 | 12 km SSW of Altamont, New York | M3.1 | 74 km | 15 km |
| May 18, 2009 | 15 km N of Medusa, New York | M3.1 | 76 km | 9 km |
| Mar 2, 1995 | 3 km ENE of Tupper Lake, New York | M3.0 | 148 km | 4 km |
| Oct 21, 2009 | 15 km N of Medusa, New York | M2.9 | 76 km | 7 km |
| Sep 29, 1994 | 13 km WNW of North Creek, New York | M2.9 | 90 km | 16 km |
| May 14, 2007 | 5 km ESE of Benson, Vermont | M2.8 | 71 km | 8 km |
| Mar 21, 2016 | 4 km ESE of Warner, New Hampshire | M2.8 | 142 km | 7 km |
| Sep 28, 2002 | 2 km N of Wilton, New Hampshire | M2.8 | 146 km | 5 km |
| Mar 22, 2009 | 9 km SW of Altamont, New York | M2.8 | 71 km | 16 km |
| Aug 27, 2011 | 5 km WSW of Altamont, New York | M2.8 | 66 km | 22 km |
| Aug 25, 2011 | 5 km WSW of Altamont, New York | M2.7 | 66 km | 18 km |
| Feb 18, 2009 | 15 km N of Medusa, New York | M2.7 | 76 km | 9 km |
| Feb 20, 2009 | 15 km SSW of Altamont, New York | M2.7 | 75 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 2.
| Year | Name | Category | Max Wind | Closest |
| 1991 | Bob | Category 2 | 104 mph | 250 km |
| 1985 | Gloria | Category 1 | 86 mph | 144 km |
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
136 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 7 fatalities, 187 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 29, 1995 | EF4 | 99 km | 11.5 mi | 3 |
| Jul 10, 1989 | EF4 | 89 km | 42.0 mi | 0 |
| Aug 28, 1973 | EF4 | 74 km | 9.8 mi | 4 |
| May 22, 2014 | EF3 | 64 km | 6.8 mi | 0 |
| May 31, 1998 | EF3 | 29 km | 30.5 mi | 0 |
| Jun 16, 1974 | EF3 | 97 km | 49.1 mi | 0 |
| Aug 20, 1968 | EF3 | 57 km | 1.0 mi | 0 |
| Jun 24, 1960 | EF3 | 45 km | 16.0 mi | 0 |
| May 29, 2013 | EF2 | 63 km | 12.8 mi | 0 |
| Jul 21, 2003 | EF2 | 78 km | 1.3 mi | 0 |
| Jun 5, 2002 | EF2 | 63 km | 0.1 mi | 0 |
| May 31, 1998 | EF2 | 58 km | 8.0 mi | 0 |
| Jul 3, 1997 | EF2 | 77 km | 1.5 mi | 0 |
| Jun 11, 1976 | EF2 | 32 km | 0.1 mi | 0 |
| Jul 13, 1975 | EF2 | 73 km | 0.3 mi | 0 |
| Aug 28, 1973 | EF2 | 21 km | 2.3 mi | 0 |
| May 29, 1969 | EF2 | 35 km | 0.5 mi | 0 |
| Aug 11, 1966 | EF2 | 87 km | 1.0 mi | 0 |
| Mar 1, 1966 | EF2 | 56 km | 0.1 mi | 0 |
| Jul 9, 1962 | EF2 | 77 km | 7.6 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 | 49 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 22°F (-6°C) | 2.6 in | Coldest |
| February | 22°F (-6°C) | 2.2 in | Driest |
| March | 32°F (0°C) | 2.8 in | |
| April | 45°F (7°C) | 3.2 in | |
| May | 57°F (14°C) | 3.8 in | |
| June | 65°F (18°C) | 3.7 in | |
| July | 68°F (20°C) | 3.4 in | Warmest |
| August | 68°F (20°C) | 4.3 in | Wettest |
| September | 59°F (15°C) | 3.5 in | |
| October | 48°F (9°C) | 3.2 in | |
| November | 38°F (3°C) | 3.5 in | |
| December | 26°F (-4°C) | 3.0 in |
Greenwich has a seasonal temperature swing of 46°F / from 22°F in January to 68°F in July. Total annual precipitation is 38.9 inches, with August being the wettest month (4.3") and February the driest (2.2").