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Weather & Climate in Lawrenceville, NJ

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

Lawrenceville experiences four distinct seasons with an average annual temperature of 53°F (12°C). Winters average 31°F in January while summers reach 76°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 47.4 inches (wetter than the 38-inch national average). Air quality is rated Good with a median AQI of 39. The city sits at an elevation of 180 feet.

Temperature

31°F Jan (-0°C) 76°F Jul (24°C)
Annual Average53.4°F
1% below US avg
January Average31°F (-0°C)
July Average76°F (24°C)
Sunny Days275 days/yr

Geography

Elevation180 ft (55 m)
Area1.0 sq mi (2.7 km²)
Population Density3,795/sq mi
Coordinates40.3026°N, 74.7385°W
TimezoneAmerica/New_York
CountyMercer County County
Nearest AirportCentral Jersey Regional (JVI)
17 miles away

Precipitation & Snow

Annual Rainfall 47.4"
25% above US avg
Wettest Month (Jul) 4.76"
Driest Month (Feb) 2.87"

Air Quality

AQI Median39.0
RatingGood

Natural Hazard Risk

Overall RiskRelatively High
Risk Score95.4 / 100
Social Vulnerability46.9 / 100
Community Resilience70.2 / 100

Hazard Breakdown

Tornado Relatively Moderate
Hurricane Relatively High
Earthquake Relatively Moderate
Wildfire Relatively Low
Flood Relatively High
Hail Very Low
Strong Wind Very High
Heat Wave Relatively Moderate
Winter Weather Very High
Lightning Relatively High
Ice Storm Very High
Drought Relatively Low
Cold Wave Relatively Moderate
Landslide Very Low
Coastal Flood Relatively Low
Source: FEMA National Risk Index v1.20 (Dec 2025)

Earthquake History

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

Apr 5, 2024 2024 Tewksbury, New Jersey Earthquake M4.8 44 km 3 km
Jan 16, 1994 2 km W of Sinking Spring, Pennsylvania M4.6 110 km 5 km
Jan 16, 1994 0 km E of Sinking Spring, Pennsylvania M4.2 108 km 5 km
Apr 5, 2024 7 km WSW of Gladstone, New Jersey M3.7 43 km 4 km
Oct 23, 1990 3 km W of Hancocks Bridge, New Jersey M3.2 110 km 10 km
Aug 26, 2003 4 km NNW of Milford, New Jersey M3.1 46 km 3 km
Jan 9, 1992 4 km WNW of Robertsville, New Jersey M3.1 34 km 8 km
Nov 14, 1997 0 km S of Rothsville, Pennsylvania M3.0 130 km 5 km
Aug 3, 2025 0 km W of Little Ferry, New Jersey M3.0 84 km 10 km
Oct 28, 1991 3 km WNW of Stamford, Connecticut M3.0 130 km 10 km
Feb 3, 2009 1 km ESE of Victory Gardens, New Jersey M3.0 66 km 0 km
Jan 16, 1994 0 km SSE of Sinking Spring, Pennsylvania M2.9 108 km 5 km
May 24, 2024 6 km E of Califon, New Jersey M2.9 46 km 7 km
Apr 27, 2024 7 km WSW of Gladstone, New Jersey M2.9 43 km 5 km
May 10, 1993 1 km NW of Whitfield, Pennsylvania M2.8 109 km 5 km
Aug 5, 2025 1 km N of Hillsdale, New Jersey M2.8 99 km 12 km
Jul 1, 2009 3 km ESE of Pennsville, New Jersey M2.8 97 km 5 km
Apr 12, 1991 2 km ENE of North Castle, New York M2.7 131 km 9 km
Mar 11, 1995 0 km ENE of Landisville, Pennsylvania M2.7 143 km 5 km
Jan 25, 2015 4 km ESE of Downingtown, Pennsylvania M2.6 85 km 2 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
2014 Arthur Category 1 81 mph 292 km
2012 Sandy Category 2 92 mph 259 km
2011 Irene Category 1 75 mph 246 km
1991 Bob Category 3 109 mph 215 km
1985 Gloria Category 2 98 mph 102 km
Source: NOAA IBTrACS (Category 1+, 1980–2026).

Tornado History

309 tornadoes (EF0+) recorded within 100 km since 1950. Strongest on record: EF3. Total: 8 fatalities, 206 injuries.

Date Rating Distance Path Fatalities
Sep 1, 2021 EF3 82 km 12.4 mi 0
Jul 29, 2021 EF3 30 km 3.4 mi 0
Jul 27, 1994 EF3 67 km 2.0 mi 3
Oct 18, 1990 EF3 20 km 0.5 mi 0
Jul 21, 1983 EF3 81 km 0.2 mi 0
Jul 26, 1981 EF3 88 km 3.3 mi 0
Sep 26, 1977 EF3 20 km 5.9 mi 0
Mar 21, 1976 EF3 84 km 0.5 mi 0
May 28, 1973 EF3 61 km 0.4 mi 0
May 28, 1973 EF3 59 km 0.4 mi 0
Apr 28, 1961 EF3 100 km 0.3 mi 0
Jun 24, 1960 EF3 5 km 12.9 mi 0
Mar 22, 1955 EF3 84 km 9.6 mi 1
Apr 1, 2023 EF2 63 km 0.1 mi 0
Apr 1, 2023 EF2 34 km 2.1 mi 0
Apr 1, 2023 EF2 43 km 1.6 mi 0
Feb 21, 2023 EF2 4 km 5.8 mi 0
Sep 1, 2021 EF2 48 km 8.3 mi 1
Jul 29, 2021 EF2 77 km 4.2 mi 0
Jul 29, 2021 EF2 18 km 6.3 mi 0
Source: NOAA Storm Prediction Center (EF0+, 1950–2024, US only).

Tsunami History

3 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 — 149 km
1895 HIGH BRIDGE, NJ Earthquake — — 42 km
1840 PHILADELPHIA, PENNSYLVANIA Earthquake — — 68 km
Source: NOAA/NCEI Historical Tsunami Database.

Wildfire History

20 wildfires (100+ acres) recorded within 100 km. Largest: GREENWOOD STATE FOREST (21,271 acres, 1995).

Year Name Acres Burned Distance
1995 GREENWOOD STATE FOREST 21,271 65 km
2007 WARREN GROVE 15,315 75 km
2022 MULLICA RIVER FIRE 13,082 68 km
1999 BASS RIVER 12,129 75 km
2019 SPRING HILL FIRE 8,182 62 km
2023 ALLEN ROAD 6,213 76 km
1992 FORKED RIVER MOUTAIN APR 5,093 63 km
1992 POWER PLANT 4,928 67 km
1992 UNNAMED 4,470 39 km
2024 TEA TIME HILL 4,444 58 km
2006 UNNAMED 3,780 66 km
2017 PENN SWAMP FIRE 3,587 70 km
2023 JIMMYS WATER HOLE 3,585 45 km
1989 SIMM PLACE 3,262 64 km
2002 UNNAMED 2,824 38 km
2007 ATSION 2,705 65 km
1992 FOUR MILE COLONY 2,647 52 km
1996 UNNAMED 2,625 72 km
2010 FORT DIX RANGE 1-14 2,615 37 km
1990 UNNAMED 2,367 59 km
Source: NIFC/IRWIN Wildfire Records (100+ acres).

Monthly Weather

Month Avg Temperature Precipitation Summary
January 31°F (-0°C) 3.7 in Coldest
February 33°F (1°C) 2.9 in Driest
March 41°F (5°C) 4.0 in
April 51°F (11°C) 3.9 in
May 62°F (16°C) 4.4 in
June 70°F (21°C) 3.9 in
July 76°F (24°C) 4.8 in Warmest, Wettest
August 74°F (23°C) 4.5 in
September 67°F (19°C) 4.1 in
October 55°F (13°C) 3.5 in
November 46°F (8°C) 3.8 in
December 36°F (2°C) 3.7 in

Lawrenceville has a seasonal temperature swing of 45°F / from 31°F in January to 76°F in July. Total annual precipitation is 47.1 inches, with July being the wettest month (4.8") and February the driest (2.9").

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