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Weather & Climate in Machias, NY
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Machias 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 44.6 inches. The area receives 108.6 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 1,648 feet.
Temperature
22°F Jan (-6°C)
68°F Jul (20°C)
| Annual Average | 45.5°F |
| 16% below US avg | |
| January Average | 22°F (-6°C) |
| July Average | 68°F (20°C) |
| Sunny Days | 246 days/yr |
Geography
| Elevation | 1,648 ft (502 m) |
| Area | 1.0 sq mi (2.7 km²) |
| Population Density | 689/sq mi |
| Coordinates | 42.4136°N, 78.4871°W |
| Timezone | America/New_York |
| County | Cattaraugus County County |
| Nearest Airport | Buffalo Niagara International (BUF) 38 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 81.6 / 100 |
| Social Vulnerability | 78.9 / 100 |
| Community Resilience | 60.9 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Low |
| Earthquake | Very Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Very Low |
| Winter Weather | Relatively Moderate |
| Lightning | Relatively High |
| Ice Storm | Relatively 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
18 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M3.8.
| Nov 26, 1999 | 14 km ESE of Centennial Scarborough, Canada | M3.8 | 150 km | 13 km |
| Feb 6, 2023 | 1 km NE of West Seneca, New York | M3.8 | 55 km | 6 km |
| Feb 3, 2001 | 6 km W of Bath, New York | M3.2 | 90 km | 0 km |
| May 25, 1995 | 3 km NW of Amherst, New York | M3.0 | 71 km | 5 km |
| Aug 4, 2004 | 30 km SSW of Cobourg, Canada | M3.0 | 144 km | 5 km |
| Jul 19, 2007 | 27 km S of Cobourg, Canada | M3.0 | 147 km | 5 km |
| Jun 16, 2004 | 11 km NNW of Angola on the Lake, New York | M2.9 | 62 km | 6 km |
| Jun 5, 2009 | 4 km SSE of Attica, New York | M2.9 | 50 km | 5 km |
| Mar 28, 2005 | 16 km NW of Virgil, Canada | M2.8 | 120 km | 7 km |
| Mar 8, 2008 | 5 km ENE of Clarence Center, New York | M2.7 | 69 km | 6 km |
| Dec 21, 2009 | 10 km NNE of Olcott, New York | M2.7 | 113 km | 8 km |
| Mar 29, 2020 | 11 km N of Lyndonville, New York | M2.6 | 113 km | 5 km |
| Mar 15, 2022 | 5 km SSW of Warsaw, New York | M2.6 | 42 km | 5 km |
| Sep 20, 2009 | 20 km ESE of Oakville, Canada | M2.6 | 133 km | 4 km |
| Jul 11, 2017 | 11 km NNW of Barker, New York | M2.5 | 114 km | 5 km |
| Dec 17, 1990 | 5 km SSE of Middleboro, Pennsylvania | M2.5 | 144 km | 5 km |
| Jan 25, 1999 | New York | M2.5 | 63 km | 3 km |
| Feb 13, 2014 | 34 km N of Lyndonville, New York | M2.5 | 137 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
132 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 8 fatalities, 80 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 31, 1985 | EF4 | 98 km | 29.0 mi | 4 |
| Jul 21, 2003 | EF3 | 72 km | 2.5 mi | 0 |
| May 31, 1985 | EF3 | 75 km | 13.0 mi | 0 |
| May 2, 1983 | EF3 | 98 km | 28.0 mi | 2 |
| Aug 19, 1970 | EF3 | 43 km | 2.3 mi | 0 |
| Jul 24, 1967 | EF3 | 15 km | 11.4 mi | 0 |
| May 15, 1961 | EF3 | 36 km | 3.0 mi | 0 |
| Jul 10, 2024 | EF2 | 39 km | 3.2 mi | 0 |
| Jul 28, 2022 | EF2 | 26 km | 10.0 mi | 0 |
| Apr 14, 2019 | EF2 | 96 km | 18.0 mi | 0 |
| Jul 20, 2017 | EF2 | 47 km | 6.1 mi | 0 |
| Nov 14, 2011 | EF2 | 77 km | 4.1 mi | 0 |
| Nov 14, 2011 | EF2 | 92 km | 2.9 mi | 0 |
| Jul 24, 2010 | EF2 | 52 km | 7.6 mi | 0 |
| Jul 24, 2010 | EF2 | 91 km | 7.6 mi | 0 |
| Apr 28, 2002 | EF2 | 32 km | 6.5 mi | 0 |
| Jun 2, 1998 | EF2 | 42 km | 15.0 mi | 0 |
| Jun 13, 1994 | EF2 | 55 km | 3.0 mi | 0 |
| Sep 3, 1993 | EF2 | 40 km | 3.5 mi | 0 |
| Jul 12, 1992 | EF2 | 69 km | 4.0 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
1 wildfire (100+ acres) recorded within 100 km. Largest: MOHAWK POOL (507 acres, 1994).
| Year | Name | Acres Burned | Distance |
| 1994 | MOHAWK POOL | 507 | 80 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 22°F (-6°C) | 2.5 in | |
| February | 21°F (-6°C) | 2.2 in | Coldest, Driest |
| March | 30°F (-1°C) | 2.8 in | |
| April | 42°F (5°C) | 3.3 in | |
| May | 53°F (12°C) | 3.6 in | |
| June | 62°F (17°C) | 4.5 in | Wettest |
| July | 68°F (20°C) | 3.7 in | Warmest |
| August | 64°F (18°C) | 3.9 in | |
| September | 58°F (14°C) | 4.1 in | |
| October | 47°F (8°C) | 3.6 in | |
| November | 36°F (2°C) | 3.7 in | |
| December | 25°F (-4°C) | 3.3 in |
Machias has a seasonal temperature swing of 47°F / from 21°F in February to 68°F in July. Total annual precipitation is 41.1 inches, with June being the wettest month (4.5") and February the driest (2.2").