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Weather & Climate in Heuvelton, NY
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Heuvelton has a cool climate with an average annual temperature of 45°F (7°C). Winters average 17°F in January while summers reach 71°F in July. The area gets 270 sunny days per year, well above the U.S. average of 205 / making it one of the sunnier locations in the country. Annual precipitation totals 39.2 inches. Air quality is rated Good with a median AQI of 36. The city sits at an elevation of 290 feet.
Temperature
17°F Jan (-8°C)
71°F Jul (21°C)
| Annual Average | 45.0°F |
| 17% below US avg | |
| January Average | 17°F (-8°C) |
| July Average | 71°F (21°C) |
| Sunny Days | 270 days/yr |
Geography
| Elevation | 290 ft (88 m) |
| Area | 0.8 sq mi (2.0 km²) |
| Population Density | 861/sq mi |
| Coordinates | 44.6164°N, 75.4000°W |
| Timezone | America/New_York |
| County | St. Lawrence County County |
| Nearest Airport | Ogdensburg International (OGS) 6 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 77.9 / 100 |
| Social Vulnerability | 64.7 / 100 |
| Community Resilience | 70.4 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Hurricane | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively Moderate |
| Hail | Very Low |
| Strong Wind | Relatively Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively High |
| Drought | No Rating |
| Cold Wave | Relatively Moderate |
| Landslide | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
120 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M5.4.
| Jun 23, 2010 | 29 km NNE of Val-des-Monts, Canada | M5.4 | 141 km | 19 km |
| Apr 20, 2002 | 8 km NNW of Au Sable Forks, New York | M5.3 | 135 km | 5 km |
| May 17, 2013 | 20 km NNE of Shawville, Canada | M5.1 | 147 km | 13 km |
| May 17, 1991 | 7 km WNW of Rigaud, Canada | M4.4 | 126 km | 18 km |
| Apr 18, 1998 | 4 km N of Plantagenet, Canada | M4.1 | 111 km | 18 km |
| Nov 17, 1992 | 16 km ENE of Saint-André-Avellin, Canada | M4.0 | 134 km | 18 km |
| Feb 25, 2006 | 4 km NE of Thurso, Canada | M4.0 | 114 km | 11 km |
| Jul 30, 1993 | 1 km NE of Salaberry-de-Valleyfield, Canada | M3.9 | 124 km | 8 km |
| Mar 16, 2011 | 6 km ENE of Hawkesbury, Canada | M3.9 | 130 km | 10 km |
| Sep 18, 2011 | 1 km E of Thurso, Canada | M3.8 | 110 km | 5 km |
| Jul 5, 1991 | 7 km WSW of Sainte-Martine, Canada | M3.8 | 137 km | 18 km |
| Oct 6, 2000 | 1 km WSW of Ormstown, Canada | M3.8 | 123 km | 18 km |
| Apr 20, 2000 | 7 km WSW of Newcomb, New York | M3.8 | 117 km | 5 km |
| Nov 6, 2012 | Ontario-Quebec border region, Canada | M3.7 | 128 km | 11 km |
| Jan 9, 2006 | 2 km ESE of Franklin, Canada | M3.7 | 128 km | 13 km |
| Apr 20, 2002 | 5 km NNW of Au Sable Forks, New York | M3.7 | 136 km | 5 km |
| Apr 8, 2003 | 17 km ESE of Saint Regis Falls, New York | M3.7 | 84 km | 10 km |
| Sep 12, 1995 | 8 km S of Brownsburg-Chatham, Canada | M3.7 | 134 km | 18 km |
| May 17, 2013 | 20 km NNE of Shawville, Canada | M3.6 | 147 km | 11 km |
| Apr 23, 2023 | New York | M3.6 | 97 km | 9 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
18 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF2. Total: 1 fatality, 4 injuries.
| Date | Rating | Distance | Path | Fatalities |
| Aug 15, 1986 | EF2 | 40 km | 0.2 mi | 1 |
| Sep 19, 1954 | EF2 | 54 km | 0.1 mi | 0 |
| Jul 8, 2014 | EF1 | 94 km | 12.3 mi | 0 |
| Sep 3, 1993 | EF1 | 91 km | 6.0 mi | 0 |
| Jul 10, 1989 | EF1 | 12 km | 1.7 mi | 0 |
| Jul 26, 1986 | EF1 | 91 km | 1.0 mi | 0 |
| May 31, 1985 | EF1 | 36 km | 5.0 mi | 0 |
| Aug 7, 1972 | EF1 | 21 km | 4.9 mi | 0 |
| Jul 1, 1959 | EF1 | 100 km | 0.1 mi | 0 |
| Aug 11, 2024 | EF0 | 39 km | 0.1 mi | 0 |
| Jun 9, 2004 | EF0 | 33 km | 0.2 mi | 0 |
| Jun 9, 2004 | EF0 | 33 km | 2.0 mi | 0 |
| Jun 1, 2004 | EF0 | 95 km | 0.1 mi | 0 |
| Aug 5, 2003 | EF0 | 68 km | 0.1 mi | 0 |
| Jun 21, 1993 | EF0 | 34 km | 0.4 mi | 0 |
| Aug 9, 1988 | EF0 | 34 km | 0.5 mi | 0 |
| Jul 24, 1987 | EF0 | 10 km | 0.4 mi | 0 |
| Jun 4, 1987 | EF0 | 93 km | 0.4 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Tsunami History
1 tsunami recorded within 500 km. Highest wave on record: 15.0 m (49 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 1908 | NOTRE DAME DE LA SALETTE | Meteorological | 15.0 m | 33 | 129 km |
Source: NOAA/NCEI Historical Tsunami Database.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 17°F (-8°C) | 2.3 in | Coldest |
| February | 18°F (-8°C) | 2.0 in | Driest |
| March | 29°F (-2°C) | 2.3 in | |
| April | 43°F (6°C) | 2.8 in | |
| May | 55°F (13°C) | 2.9 in | |
| June | 64°F (18°C) | 3.1 in | |
| July | 71°F (21°C) | 3.2 in | Warmest |
| August | 67°F (20°C) | 3.8 in | |
| September | 59°F (15°C) | 3.9 in | Wettest |
| October | 47°F (9°C) | 3.1 in | |
| November | 36°F (2°C) | 3.4 in | |
| December | 23°F (-5°C) | 2.8 in |
Heuvelton has a seasonal temperature swing of 54°F / from 17°F in January to 71°F in July. Total annual precipitation is 35.6 inches, with September being the wettest month (3.9") and February the driest (2.0").