New Jersey climate: Statewide normals, its places and each month, NOAA 1991-2020

New Jersey's statewide normal is 53.5°F a year with 47.6 inches of precipitation (NOAA nClimDiv, 1991-2020); it has warmed 3.1°F per century since 1895, and 2012 was its warmest year.

Statewide normal temperature
53.5°Fyear, 1991-2020
Statewide normal precipitation
47.6 inyear, 1991-2020
Last five years against normal
+1.3°F2021-2025 mean 54.9°F
Places with normals
4833 Census places, 15 other stations

What is New Jersey's weather like each month?

Statewide, July is the warmest month and January the coldest. Each month has its own page with the warmest and coolest places that month:

  1. Jan40°23°
  2. Feb43°25°
  3. Mar51°31°
  4. Apr63°40°
  5. May72°50°
  6. Jun81°60°
  7. Jul86°65°
  8. Aug84°63°
  9. Sep77°57°
  10. Oct66°45°
  11. Nov55°36°
  12. Dec45°28°
New Jersey statewide normals by month, 1991-2020 (NOAA nClimDiv)
MonthHighLowMeanPrecip.
January40°F23°F31.7°F3.49
February43°F25°F33.9°F2.86
March51°F31°F41.0°F4.20
April63°F40°F51.5°F3.70
May72°F50°F61.2°F3.75
June81°F60°F70.3°F4.30
July86°F65°F75.4°F4.71
August84°F63°F73.6°F4.57
September77°F57°F66.9°F4.16
October66°F45°F55.4°F4.19
November55°F36°F45.1°F3.36
December45°F28°F36.6°F4.27

Source: NOAA NCEI nClimDiv statewide series (Climate at a Glance); data files. Statewide values are area-weighted from a 5 km grid of station data, so they differ from the simple average of a state's stations.

Has New Jersey been warmer than normal?

5 of the 5 complete years since 2021 ran warmer than the 1991-2020 statewide normal of 53.5°F. The record since 1895 rises at a fitted 3.1°F per century; the warmest year was 2012 (55.9°F).

New Jersey statewide mean temperature in recent years
YearMeanAgainst normal
202155.1°F+1.5°F
202254.3°F+0.8°F
202355.6°F+2.0°F
202455.6°F+2.1°F
202553.8°F+0.2°F

Source: NOAA NCEI nClimDiv statewide annual series.

Where is it warmest, wettest and snowiest in New Jersey?

Among the places PlainClimate covers, Margate has the warmest year (56.9°F) and Charlotteburg Reservoir the coolest (50.0°F); Long Branch is the wettest (52.5 in) and Sussex the driest (41.0 in), and Newark gets the most snow (32 in).

Newark: 55.5°F a yearToms River: 52.7°F a yearTrenton: 54.1°F a yearNew Brunswick: 53.7°F a yearPlainfield: 54.9°F a yearAtlantic City: 55.1°F a yearLong Branch: 53.7°F a yearMillville: 54.3°F a yearGlassboro: 54.9°F a yearHarrison: 54.8°F a yearPhillipsburg: 52.1°F a yearHammonton: 54.6°F a yearMoorestown-Lenola: 55.8°F a yearSomerville: 52.5°F a yearFreehold: 54.0°F a yearWanaque: 51.7°F a yearCaldwell: 53.1°F a yearBoonton: 51.8°F a yearNewton: 50.4°F a yearHightstown: 52.8°F a yearFlemington: 52.1°F a yearLambertville: 53.1°F a yearWoodstown: 55.9°F a yearCape May: 56.2°F a yearBelvidere: 50.1°F a yearEssex Fells: 52.5°F a yearSussex: 50.1°F a yearCranford: 54.7°F a yearEstell Manor: 54.5°F a yearSeabrook Farms: 54.9°F a yearBelleplain: 55.7°F a yearAndover: 50.5°F a yearTeterboro: 55.4°F a yearNewarkToms RiverTrenton
New Jersey: the places PlainClimate covers by their normal yearly mean temperature: from the coolest place (50.1°F a year, blue) to the warmest (56.2°F, red); each dot is a place's NOAA station.
New Jersey: every place PlainClimate covers, with its NOAA 1991-2020 normals (largest first)
PlaceYearJuly highJanuary lowPrecip.SnowLast frost
Newark55.5°F87°F26°F46.632April 2
Toms River52.7°F86°F22°F52.0–April 23
Trenton54.1°F86°F24°F45.627April 10
New Brunswick53.7°F87°F23°F49.529April 15
Plainfield54.9°F88°F24°F48.721April 11
Atlantic City55.1°F87°F25°F46.017April 18
Long Branch53.7°F84°F25°F52.5–April 9
Millville54.3°F86°F24°F43.4–April 24
Glassboro54.9°F87°F25°F––April 8
Harrison54.8°F87°F25°F50.428April 4
Phillipsburg52.1°F86°F22°F51.0–April 18
Hammonton54.6°F87°F24°F47.519April 14
Moorestown-Lenola55.8°F88°F26°F49.3–April 12
Somerville52.5°F86°F21°F45.5–April 26
Freehold54.0°F87°F23°F48.6–April 17
Wanaque51.7°F84°F20°F48.2–April 19
Caldwell53.1°F85°F23°F44.9–April 14
Boonton51.8°F85°F21°F49.2–April 17
Newton50.4°F84°F17°F––April 24
Hightstown52.8°F87°F21°F47.524April 25
Flemington52.1°F86°F21°F50.927April 24
Lambertville53.1°F88°F19°F50.413April 16
Woodstown55.9°F89°F25°F46.613April 11
Cape May56.2°F86°F29°F43.815April 1
Belvidere50.1°F84°F18°F48.223April 30
Essex Fells52.5°F86°F21°F48.6–April 18
Sussex50.1°F84°F18°F41.0–May 1
Cranford54.7°F86°F25°F50.426April 11
Estell Manor54.5°F87°F23°F50.622April 24
Seabrook Farms54.9°F86°F25°F47.712April 10
Belleplain55.7°F88°F25°F––April 24
Andover50.5°F84°F19°F48.8–April 25
Teterboro55.4°F87°F26°F46.3–April 3

Source: NOAA NCEI 1991-2020 normals for each station. Last frost: the median last spring date of 32°F.

What are New Jersey's all-time weather records?

The official state records, reviewed by NOAA's State Climate Extremes Committee: from 110°F to −34°F.

New Jersey: official all-time records (NOAA State Climate Extremes Committee)
RecordValueWhereWhen
Highest temperature110°FRunyonJuly 10, 1936
Lowest temperature−34°FRiver ValeJanuary 5, 1904
Most precipitation in 24 hours14.81 inTuckertonAugust 19, 1939
Most snow in 24 hours29.7 inLong BranchDecember 26, 1947
Deepest snow on the ground52 inCanistear ReservoirFebruary 5, 1961

Source: NOAA NCEI State Climate Extremes Committee records.

Which large cities in New Jersey have no climate record of their own?

These 14 cities of 50,000 or more have no NOAA record with 1991-2020 normals under their own name; each page compares the nearest records, with their distance and elevation.

Which other NOAA stations in New Jersey keep normals?

15 stations in New Jersey that are not a town's own record keep 1991-2020 normals too: reservoirs and dams, parks and forests, research farms, remote sites and the second stations of towns (those are shown on the town's page). Each with its normal yearly mean:

Source: NOAA NCEI 1991-2020 normals for each station.

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