Temperature, precipitation, air quality, natural hazards, and monthly weather data.
Yaphank experiences four distinct seasons with an average annual temperature of 52°F (11°C). Winters average 32°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 44.2 inches. Air quality is rated Good with a median AQI of 36. The city sits at an elevation of 53 feet.
Temperature
32°F Jan (-0°C)74°F Jul (23°C)
Annual Average
52.4°F
3% below US avg
January Average
32°F (-0°C)
July Average
74°F (23°C)
Sunny Days
275 days/yr
Geography
Elevation
53 ft (16 m)
Area
13.8 sq mi (35.7 km²)
Population Density
450/sq mi
Coordinates
40.8310°N, 72.9317°W
Timezone
America/New_York
County
Suffolk County County
Nearest Airport
John F Kennedy International (JFK) 46 miles away
Precipitation & Snow
Annual Rainfall44.2"
16% above US avg
Wettest Month (Mar)4.06"
Driest Month (Jun)2.91"
Air Quality
AQI Median
36.0
Rating
Good
Natural Hazard Risk
Overall Risk
Relatively High
Risk Score
97.3 / 100
Social Vulnerability
21.6 / 100
Community Resilience
94.1 / 100
Hazard Breakdown
Tornado
Relatively Moderate
Hurricane
Relatively High
Earthquake
Relatively Moderate
Wildfire
Relatively Low
Flood
Relatively High
Hail
Relatively Low
Strong Wind
Relatively High
Heat Wave
Relatively Moderate
Winter Weather
Very High
Lightning
Very High
Ice Storm
Very High
Drought
Very Low
Cold Wave
Relatively High
Landslide
Relatively Low
Coastal Flood
Very High
Source: FEMA National Risk Index v1.20 (Dec 2025)
Earthquake History
17 earthquakes (M2.5+) recorded within 150 km since 1990.
Strongest on record: M3.3.
Jan 12, 2015
0 km NE of Wauregan, Connecticut
M3.3
133 km
5 km
Jun 16, 2000
5 km NE of Granville, Massachusetts
M3.3
141 km
10 km
Jan 9, 1992
4 km WNW of Robertsville, New Jersey
M3.1
130 km
8 km
Apr 9, 2019
63 km SSE of Sagaponack, New York
M3.0
93 km
7 km
Aug 3, 2025
0 km W of Little Ferry, New Jersey
M3.0
94 km
10 km
Oct 28, 1991
3 km WNW of Stamford, Connecticut
M3.0
60 km
10 km
Feb 3, 2009
1 km ESE of Victory Gardens, New Jersey
M3.0
134 km
0 km
Aug 5, 2025
1 km N of Hillsdale, New Jersey
M2.8
95 km
12 km
Mar 10, 1992
2 km SW of Napeague, New York
M2.8
73 km
10 km
Apr 12, 1991
2 km ENE of North Castle, New York
M2.7
70 km
9 km
Aug 14, 2014
6 km SW of Deep River Center, Connecticut
M2.7
68 km
4 km
Jan 13, 2015
2 km E of Wauregan, Connecticut
M2.6
134 km
9 km
May 1, 2024
1 km NW of Gladstone, New Jersey
M2.6
147 km
5 km
Aug 22, 2000
2 km WSW of Brewster Hill, New York
M2.6
88 km
7 km
Oct 27, 2001
1 km NNW of Manhattan, New York
M2.6
87 km
5 km
Aug 14, 2015
3 km SE of Mendham, New Jersey
M2.6
139 km
8 km
Jan 15, 1992
5 km NNE of Tuxedo Park, New York
M2.5
113 km
7 km
Source: USGS Earthquake Catalog (M2.5+, 1990–2025). Sorted by magnitude.
Hurricane History
5 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
229 km
2014
Arthur
Category 1
81 mph
231 km
2012
Sandy
Category 1
92 mph
282 km
1991
Bob
Category 2
109 mph
86 km
1985
Gloria
Category 2
98 mph
40 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).
Tornado History
131 tornadoes (EF0+) recorded within 100 km since 1950.
Strongest on record: EF4. Total: 3 fatalities, 228 injuries.
Date
Rating
Distance
Path
Fatalities
Jul 10, 1989
EF4
61 km
3.0 mi
0
Jul 29, 1971
EF3
81 km
0.1 mi
0
May 24, 1962
EF3
82 km
11.6 mi
1
Aug 21, 1951
EF3
91 km
0.1 mi
0
May 15, 2018
EF2
98 km
1.2 mi
0
Jul 12, 2006
EF2
83 km
10.1 mi
0
Aug 8, 1999
EF2
39 km
4.0 mi
0
Sep 7, 1998
EF2
66 km
0.2 mi
0
Jul 10, 1989
EF2
13 km
0.2 mi
0
Jul 10, 1989
EF2
91 km
0.5 mi
0
Jul 10, 1989
EF2
87 km
5.0 mi
0
Jul 5, 1984
EF2
93 km
3.0 mi
0
Sep 18, 1973
EF2
52 km
1.9 mi
0
Sep 18, 1973
EF2
86 km
0.1 mi
0
Jun 12, 1973
EF2
89 km
1.5 mi
0
Jul 29, 1971
EF2
92 km
4.5 mi
0
Jul 19, 1971
EF2
51 km
1.5 mi
0
Sep 27, 1970
EF2
50 km
0.5 mi
0
Jul 15, 1970
EF2
84 km
2.0 mi
0
Aug 7, 1962
EF2
96 km
2.5 mi
0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).
Tsunami History
1 tsunami 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
—
15 km
Source: NOAA/NCEI Historical Tsunami Database.
Wildfire History
1 wildfire (100+ acres) recorded within 100 km.
Largest: CRESCENT BOW FIRE (1,068 acres, 2012).
Year
Name
Acres Burned
Distance
2012
CRESCENT BOW FIRE
1,068
11 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).
Monthly Weather
Month
Avg Temperature
Precipitation
Summary
January
32°F (-0°C)
3.7 in
Coldest
February
32°F (0°C)
3.2 in
March
40°F (4°C)
4.1 in
Wettest
April
49°F (9°C)
3.8 in
May
58°F (15°C)
3.4 in
June
68°F (20°C)
2.9 in
Driest
July
74°F (23°C)
3.0 in
Warmest
August
72°F (22°C)
3.9 in
September
66°F (19°C)
3.2 in
October
55°F (13°C)
3.2 in
November
46°F (8°C)
3.9 in
December
36°F (2°C)
3.9 in
Yaphank has a seasonal temperature swing of 43°F / from 32°F in January to 74°F in July. Total annual precipitation is 42.0 inches, with March being the wettest month (4.1") and June the driest (2.9").