Weather & Climate in Port Chester, NY

Temperature, precipitation, air quality, natural hazards, and monthly weather data.

Port Chester experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 30°F in January while summers reach 74°F in July. The area gets 275 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 47.8 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 36. The city sits at an elevation of 66 feet.

Temperature

30°F Jan (-1°C) 74°F Jul (23°C)

Annual Average	52.0°F
	4% below US avg
January Average	30°F (-1°C)
July Average	74°F (23°C)
Sunny Days	275 days/yr

Geography

Elevation	66 ft (20 m)
Area	2.3 sq mi (6.0 km²)
Population Density	13,374/sq mi
Coordinates	41.0047°N, 73.6672°W
Timezone	America/New_York
County	Westchester County County
Nearest Airport	Laguardia (LGA) 19 miles away

Precipitation & Snow

Annual Rainfall 47.8"

26% above US avg

Wettest Month (May) 4.53"

Driest Month (Feb) 3.11"

Air Quality

AQI Median	36.0
Rating	Good

Natural Hazard Risk

Overall Risk	Relatively High
Risk Score	96.2 / 100
Social Vulnerability	47.4 / 100
Community Resilience	77.1 / 100

Hazard Breakdown

Tornado	Relatively Moderate
Hurricane	Relatively High
Earthquake	Relatively Moderate
Wildfire	Very Low
Flood	Relatively High
Hail	Very Low
Strong Wind	Very High
Heat Wave	Relatively Moderate
Winter Weather	Very High
Lightning	Very High
Ice Storm	Relatively High
Drought	Very Low
Cold Wave	Relatively High
Landslide	Relatively Moderate
Coastal Flood	Relatively Moderate
Avalanche	Very Low

Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

21 earthquakes (M2.5+) recorded within 150 km since 1990. Strongest on record: M4.8.

Apr 5, 2024	2024 Tewksbury, New Jersey Earthquake	M4.8	98 km	3 km
Apr 5, 2024	7 km WSW of Gladstone, New Jersey	M3.7	97 km	4 km
Jun 16, 2000	5 km NE of Granville, Massachusetts	M3.3	141 km	10 km
Aug 26, 2003	4 km NNW of Milford, New Jersey	M3.1	129 km	3 km
Jan 9, 1992	4 km WNW of Robertsville, New Jersey	M3.1	91 km	8 km
Oct 28, 1991	3 km WNW of Stamford, Connecticut	M3.0	10 km	10 km
Aug 3, 2025	0 km W of Little Ferry, New Jersey	M3.0	36 km	10 km
Feb 3, 2009	1 km ESE of Victory Gardens, New Jersey	M3.0	74 km	0 km
May 24, 2024	6 km E of Califon, New Jersey	M2.9	97 km	7 km
Apr 27, 2024	7 km WSW of Gladstone, New Jersey	M2.9	97 km	5 km
Mar 10, 1992	2 km SW of Napeague, New York	M2.8	133 km	10 km
Aug 5, 2025	1 km N of Hillsdale, New Jersey	M2.8	31 km	12 km
Apr 12, 1991	2 km ENE of North Castle, New York	M2.7	16 km	9 km
Aug 14, 2014	6 km SW of Deep River Center, Connecticut	M2.7	105 km	4 km
Aug 14, 2015	3 km SE of Mendham, New Jersey	M2.6	81 km	8 km
Oct 27, 2001	1 km NNW of Manhattan, New York	M2.6	35 km	5 km
Aug 22, 2000	2 km WSW of Brewster Hill, New York	M2.6	46 km	7 km
May 1, 2024	1 km NW of Gladstone, New Jersey	M2.6	90 km	5 km
Apr 10, 2024	5 km WSW of Gladstone, New Jersey	M2.6	95 km	9 km
Apr 5, 2024	6 km ESE of Califon, New Jersey	M2.6	99 km	6 km

Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.

Hurricane History

4 hurricanes (Category 1+) recorded within 500 km since 1980. Strongest on record: Category 2.

Year	Name	Category	Max Wind	Closest
2021	Henri	Category 1	75 mph	288 km
2014	Arthur	Category 1	81 mph	289 km
1991	Bob	Category 2	109 mph	147 km
1985	Gloria	Category 2	98 mph	55 km

Source: NOAA IBTrACS (Category 1+, 1980–2026).

Tornado History

214 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF4. Total: 13 fatalities, 284 injuries.

Date	Rating	Distance	Path	Fatalities
Jul 10, 1989	EF4	77 km	3.0 mi	0
Jul 14, 1988	EF3	81 km	7.2 mi	0
May 28, 1973	EF3	74 km	0.4 mi	0
May 28, 1973	EF3	90 km	0.4 mi	0
Jul 29, 1971	EF3	80 km	0.1 mi	0
May 24, 1962	EF3	76 km	11.6 mi	1
May 15, 2018	EF2	55 km	1.2 mi	0
Jul 29, 2009	EF2	88 km	7.4 mi	0
Aug 8, 2007	EF2	56 km	5.9 mi	0
Jul 12, 2006	EF2	19 km	10.1 mi	0
Jun 23, 2001	EF2	100 km	0.5 mi	0
May 27, 2001	EF2	92 km	1.5 mi	0
May 18, 2000	EF2	94 km	0.2 mi	0
Aug 8, 1999	EF2	96 km	4.0 mi	0
Sep 7, 1998	EF2	40 km	0.2 mi	0
Jul 10, 1989	EF2	46 km	0.5 mi	0
Jul 10, 1989	EF2	77 km	0.2 mi	0
Jul 10, 1989	EF2	96 km	10.0 mi	0
Jul 10, 1989	EF2	80 km	5.0 mi	0
Jul 26, 1986	EF2	94 km	0.5 mi	0

Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

2 tsunamis recorded within 500 km. Highest wave on record: 0.3 m (1 ft).

Year	Location	Cause	Max Wave	Deaths	Distance
1964	LONG ISLAND, NY	Meteorological	0.3 m	—	53 km
1895	HIGH BRIDGE, NJ	Earthquake	—	—	109 km

Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

9 wildfires (100+ acres) recorded within 100 km. Largest: UNNAMED (23,000 acres, 1985).

Year	Name	Acres Burned	Distance
1985	UNNAMED	23,000	43 km
2024	JENNINGS CREEK	5,069	56 km
2015	ROOSA GAP	2,747	95 km
2008	UNNAMED	2,224	95 km
2016	SAMS POINT FIRE-VERKEERDER FIRE	1,929	94 km
2012	CRESCENT BOW FIRE	1,068	72 km
1988	UNNAMED	833	47 km
1985	UNNAMED	737	94 km
2016	SHERWOOD	642	41 km

Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month	Avg Temperature	Precipitation	Summary
January	30°F (-1°C)	3.7 in	Coldest
February	30°F (-1°C)	3.1 in	Driest
March	39°F (4°C)	4.2 in
April	49°F (9°C)	4.4 in
May	59°F (15°C)	4.5 in	Wettest
June	68°F (20°C)	3.9 in
July	74°F (23°C)	4.1 in	Warmest
August	72°F (22°C)	4.3 in
September	64°F (18°C)	4.3 in
October	53°F (12°C)	3.9 in
November	44°F (7°C)	4.4 in
December	34°F (1°C)	3.9 in

Port Chester has a seasonal temperature swing of 44°F / from 30°F in January to 74°F in July. Total annual precipitation is 48.6 inches, with May being the wettest month (4.5") and February the driest (3.1").

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