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Weather & Climate in Irondequoit, NY
Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Irondequoit experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 26°F in January while summers reach 72°F in July. The area gets 260 sunny days per year, above the national average. Annual precipitation totals 35.1 inches. The area receives 102.0 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 394 feet.
Temperature
26°F Jan (-3°C)
72°F Jul (22°C)
| Annual Average | 49.5°F |
| 8% below US avg | |
| January Average | 26°F (-3°C) |
| July Average | 72°F (22°C) |
| Sunny Days | 260 days/yr |
Geography
| Elevation | 394 ft (120 m) |
| Area | 15.0 sq mi (38.9 km²) |
| Population Density | 3,358/sq mi |
| Coordinates | 43.2098°N, 77.5721°W |
| Timezone | America/New_York |
| County | Monroe County County |
| Nearest Airport | Frederick Douglass/Greater Rochester International (ROC) 8 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 36.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Moderate |
| Risk Score | 93.8 / 100 |
| Social Vulnerability | 43.5 / 100 |
| Community Resilience | 94.4 / 100 |
Hazard Breakdown
| Tornado | Relatively Moderate |
| Hurricane | Relatively Low |
| Earthquake | Relatively Low |
| Wildfire | Very Low |
| Flood | Relatively High |
| Hail | Very Low |
| Strong Wind | Relatively Moderate |
| Heat Wave | Relatively Moderate |
| Winter Weather | Relatively High |
| Lightning | Relatively Moderate |
| Ice Storm | Relatively High |
| Drought | Relatively Low |
| Cold Wave | Relatively High |
| Landslide | Very Low |
| Coastal Flood | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
25 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 | 128 km | 13 km |
| Feb 6, 2023 | 1 km NE of West Seneca, New York | M3.8 | 106 km | 6 km |
| Apr 23, 2023 | New York | M3.6 | 145 km | 9 km |
| Dec 25, 1998 | 23 km SE of Cobourg, Canada | M3.6 | 75 km | 18 km |
| Jun 29, 2024 | 14 km W of Ellisburg, New York | M3.3 | 116 km | 5 km |
| Feb 3, 2001 | 6 km W of Bath, New York | M3.2 | 97 km | 0 km |
| May 24, 2000 | 4 km ENE of Centennial Scarborough, Canada | M3.1 | 140 km | 18 km |
| Aug 4, 2004 | 30 km SSW of Cobourg, Canada | M3.0 | 77 km | 5 km |
| May 25, 1995 | 3 km NW of Amherst, New York | M3.0 | 105 km | 5 km |
| May 8, 2018 | 14 km SSE of Ajax, Canada | M3.0 | 126 km | 5 km |
| Nov 7, 2002 | 13 km SSW of Belleville, Canada | M3.0 | 94 km | 18 km |
| Jul 19, 2007 | 27 km S of Cobourg, Canada | M3.0 | 75 km | 5 km |
| Jun 16, 2004 | 11 km NNW of Angola on the Lake, New York | M2.9 | 132 km | 6 km |
| Jun 5, 2009 | 4 km SSE of Attica, New York | M2.9 | 69 km | 5 km |
| Mar 28, 2005 | 16 km NW of Virgil, Canada | M2.8 | 139 km | 7 km |
| Mar 8, 2008 | 5 km ENE of Clarence Center, New York | M2.7 | 84 km | 6 km |
| Dec 21, 2009 | 10 km NNE of Olcott, New York | M2.7 | 92 km | 8 km |
| Aug 11, 2007 | 4 km N of Kingston, Canada | M2.6 | 147 km | 4 km |
| Apr 14, 2023 | 1 km W of Adams Center, New York | M2.6 | 144 km | 6 km |
| Mar 29, 2020 | 11 km N of Lyndonville, New York | M2.6 | 68 km | 5 km |
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Tornado History
59 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 4 fatalities, 11 injuries.
| Date | Rating | Distance | Path | Fatalities |
| May 2, 1983 | EF3 | 77 km | 20.0 mi | 1 |
| Jun 2, 1969 | EF3 | 75 km | 17.5 mi | 0 |
| Jul 28, 2022 | EF2 | 90 km | 10.0 mi | 0 |
| Aug 21, 2011 | EF2 | 66 km | 7.9 mi | 0 |
| Jun 2, 1998 | EF2 | 75 km | 15.0 mi | 0 |
| Aug 28, 1990 | EF2 | 98 km | 2.5 mi | 0 |
| May 2, 1972 | EF2 | 94 km | 12.0 mi | 0 |
| Aug 23, 1971 | EF2 | 97 km | 0.1 mi | 0 |
| Sep 19, 2022 | EF1 | 71 km | 1.9 mi | 0 |
| Sep 12, 2021 | EF1 | 60 km | 0.8 mi | 0 |
| May 3, 2018 | EF1 | 65 km | 1.1 mi | 0 |
| Jul 25, 2009 | EF1 | 76 km | 4.1 mi | 0 |
| Jun 21, 2007 | EF1 | 94 km | 1.5 mi | 0 |
| May 11, 2003 | EF1 | 24 km | 2.3 mi | 0 |
| Jul 28, 2002 | EF1 | 97 km | 0.1 mi | 0 |
| Jul 15, 1996 | EF1 | 29 km | 0.5 mi | 0 |
| Jun 22, 1996 | EF1 | 55 km | 3.0 mi | 0 |
| Aug 20, 1994 | EF1 | 61 km | 2.0 mi | 0 |
| Sep 3, 1993 | EF1 | 55 km | 4.2 mi | 2 |
| Aug 31, 1993 | EF1 | 86 km | 0.8 mi | 0 |
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Wildfire History
2 wildfires (100+ acres) recorded within 100 km. Largest: DRY MARSH (1,018 acres, 2010).
| Year | Name | Acres Burned | Distance |
| 2010 | DRY MARSH | 1,018 | 71 km |
| 1994 | MOHAWK POOL | 507 | 69 km |
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 26°F (-3°C) | 2.2 in | Coldest |
| February | 26°F (-3°C) | 1.9 in | Driest |
| March | 34°F (1°C) | 2.3 in | |
| April | 45°F (7°C) | 2.8 in | |
| May | 57°F (14°C) | 2.8 in | |
| June | 66°F (19°C) | 3.2 in | |
| July | 72°F (22°C) | 2.7 in | Warmest |
| August | 70°F (21°C) | 3.2 in | |
| September | 62°F (17°C) | 3.4 in | Wettest |
| October | 52°F (11°C) | 2.8 in | |
| November | 41°F (5°C) | 3.1 in | |
| December | 31°F (-1°C) | 2.7 in |
Irondequoit has a seasonal temperature swing of 46°F / from 26°F in January to 72°F in July. Total annual precipitation is 32.9 inches, with September being the wettest month (3.4") and February the driest (1.9").